Настройки

Укажите год
-

Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

Подробнее
-

Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год
Применить Всего найдено 7272. Отображено 100.
12-01-2012 дата публикации

Hybrid Cement Set-On-Command Compositions

Номер: US20120010324A1
Автор: Alexander Bismarck, Angelika Menner, Gary Funkhouser, Natasha Shirshova
Принадлежит: Halliburton Energy Services Inc

The present invention relates to methods and compositions useful for isolating a portion of a wellbore. In one embodiment, a method includes preparing a sealant composition containing two phases. The sealant composition is placed into the wellbore where one phase sets upon subjecting the sealant composition to a thermal source followed by the setting of the other phase.

Подробнее
Номер записи: 1
26-01-2012 дата публикации

Cement compositions with a high-density additive of silicon carbide or sintered bauxite

Номер: US20120018155A1
Автор: Keith Armstrong, Rahul Chandrakant Patil, Sandip Prabhakar Patil
Принадлежит: Halliburton Energy Services Inc

A method of cementing in a subterranean formation comprising the steps of: (A) introducing a cement composition into the subterranean formation, the cement composition comprising: (i) cement; (ii) water; and (iii) a high-density additive selected from the group consisting of silicon carbide, sintered bauxite, and any combination thereof, wherein the cement composition has a density of at least 16 pounds per gallon; and (B) allowing the cement composition to set. According to an embodiment, the high-density additive is in a concentration of at least 30% by weight of the cement. A cement composition for use in an oil or gas well comprises: (A) cement; (B) water; and (C) a high-density additive selected from the group consisting of silicon carbide, sintered bauxite, and a combination thereof, wherein the high-density additive is in a concentration of at least 30% by weight of the cement, and wherein the cement composition has a density of at least 16 pounds per gallon.

Подробнее
Номер записи: 2
10-05-2012 дата публикации

Porogen Containing Calcium Phosphate Cement Compositions

Номер: US20120115780A1
Автор: Ali Sait Ismailoglu, David C. Delaney, Duran N. Yetkinler, Ravinder Singh, Sahil Jalota
Принадлежит: Skeletal Kinetics LLC

Porogen containing calcium phosphate cement compositions are provided. Aspects of the cement compositions include a dry calcium phosphate reactant component, a setting fluid component and a porogen component. The porogen component includes at least first and second porogens having different pore forming profiles. Aspects of the invention include combining the cement components to produce a settable composition. Aspects of the invention further include the settable compositions themselves as well as kits for preparing the same. Methods and compositions as described herein find use in a variety of applications, including hard tissue repair applications.

Подробнее
Номер записи: 3
05-07-2012 дата публикации

Weighted Elastomers, Cement Compositions Comprising Weighted Elastomers, and Methods of Use

Номер: US20120172261A1
Автор: Craig W. Roddy, D. Chad Brenneis, Jeffery D. Karcher, Rickey L. Morgan
Принадлежит: Halliburton Energy Services Inc

Methods and compositions are provided that relate to weighted elastomers. The weighted elastomers may comprise an elastomer and a weighting agent attached to an outer surface of the elastomer. An embodiment includes a method of cementing that comprises providing a cement composition containing cement, water, and a weighted elastomer. In addition, the cement composition may be introduced into a subterranean formation and allowed to set therein.

Подробнее
Номер записи: 4
12-07-2012 дата публикации

Additive for mineral binding agents

Номер: US20120174831A1
Автор: Colin Hurley, Dieter Honert, Jorg M. Schrabback, Thomas Heller
Принадлежит: SIKA TECHNOLOGY AG

An additive composition comprising at least one lignosulfonate is used for reducing the amount of soot floating on mineral binding agents. Methods for reducing the amount of soot floating on mineral binding agents where an additive composition comprising at least one lignosulfonate is added to a mineral binding agent.

Подробнее
Номер записи: 5
02-08-2012 дата публикации

Rock sheet and plate mix based on volcanic rock particles useful for building and decoration and its manufacturing processes

Номер: US20120196136A1
Автор: Jesùs Federico Arroyo-Bernal
Принадлежит: Individual

The present invention relates to a mix to manufacture a rock sheet on a solid base useful for decorating purposes. The mix includes a binding composition of an agglutinating agent comprising volcanic rock particles having a particle size of 1 to 5 microns and a polymer mixture in a combined amount sufficient to act as a binder for other components of the laminate; a silicate compound in an amount sufficient to stabilize the composition; and water in an amount to moisten and fluidize the composition. The mix can contain other components for forming laminates or shapes, and can be formed as or on a plate useful for building and decorating buildings made-up by a rock sheet manufactured with the aforementioned mix and a solid base. The methods for preparing the aforementioned mix and plates useful for the construction and decoration of construction surfaces are also disclosed.

Подробнее
Номер записи: 6
02-08-2012 дата публикации

Expoxy Acid Based Biodegradable Set Retarder

Номер: US20120196954A1
Автор: Abhijit Tarafdar, Dibyadarshani Senapati, Girish Dinkar Sarap, Rahul Chandrakant Patil
Принадлежит: Halliburton Energy Services Inc

A cement composition or method of using the cement composition in a subterranean formation, the composition having: (A) cement; (B) water; and (C) a polymer, wherein the polymer: (i) comprises a monomer or monomers selected from the group consisting of epoxysuccinic acid, a substituted epoxysuccinic acid, and an alkali metal salt, alkaline earth metal salt, or ammonium salt of any of the foregoing, and any combination of any of the foregoing; (ii) has the following characteristics: (a) is water soluble; and (b) is biodegradable; and (iii) is capable of providing: (a) a thickening time of at least 2 hours for a test composition at a temperature of 190° F. and a pressure of 5,160 psi; and (b) an initial setting time of less than 24 hours for the test composition at a temperature of 217° F. and a pressure of 3,000 psi.

Подробнее
Номер записи: 7
29-11-2012 дата публикации

Honeycomb structure comprising an outer cement skin and a cement therefor

Номер: US20120301664A1
Автор: Linda J. Ingersoll, Patrick D. Tepesch, Thomas R. Chapman
Принадлежит: Corning Inc

Disclosed is a honeycomb catalyst support structure comprising a honeycomb body and an outer layer or skin formed of a cement comprising an amorphous glass powder with a multimodal particle size distribution applied to an exterior surface of the honeycomb body. The multimodal particle size distribution is achieved through the use of a first glass powder having a first median particle size and at least a second glass powder having a second median particle size. In some embodiments, the first and second glass powders are the same amorphous glass consisting of fused silica. The cement may further include a fine-grained, sub-micron sized silica in the form of colloidal silica. The cement exhibits a coefficient of thermal expansion less than 15×10 −7 /° C., and preferably about 5×10 −7 /° C. after drying.

Подробнее
Номер записи: 8
20-12-2012 дата публикации

Drag Reducer for Cement Compositions

Номер: US20120322912A1
Автор: Colm Monaghan, Salim Taoutaou
Принадлежит: Individual

A cement composition for use in preparation for a wellbore cementing slurry comprising cement dry powder and fibres for reducing drag forces.

Подробнее
Номер записи: 9
22-08-2013 дата публикации

Materials and process for enhancing selective separations

Номер: US20130217791A1
Автор: Brian L. Swift, John B. Hines, Pablo G. Dopico
Принадлежит: Georgia Pacific Chemicals LLC

Use of a Maillard reaction product as an adjuvant in a variety of applications including solid-liquid separations, corrosion inhibition, emulsification, dust suppression, slow release fertilization, viscosity modification and others and especially as a depressant or collector in separation processes, including the selective separation of solids and/or ionic species from aqueous media, such as in the process of froth flotation.

Подробнее
Номер записи: 10
03-10-2013 дата публикации

Low Viscosity Synthetic Cement

Номер: US20130261220A1
Автор: Erin Murphy
Принадлежит: KRATON POLYMERS US LLC

The present invention relates to a synthetic cement that comprises a low viscosity monofunctional monomer, a dicyclopentadienyl moiety having a pendant free radical reactive species, 1,3-butyleneglycol dimethacrylate, unsaturated styrenic block copolymer, and a peroxide curing agent. Additionally it may include weighting agents depending on the circumstances of the well, as is well known to those skilled in the art. Other additional components such as oil based mud, suspending agents, Portland cement, acrylates and methacrylates, retardant curing additives, and clays may optionally be incorporated into the synthetic cement. The synthetic cement is activated by heat, for example, and can be crafted to set within a certain time frame, for example in 4 hours, so that it pumpable for as long as need be, and then be set to seal the well in the manner desired.

Подробнее
Номер записи: 11
07-11-2013 дата публикации

Lightweight Wall Repair Compounds

Номер: US20130296462A1
Автор: John E. Gozum, Richard A. Mallo
Принадлежит: 3M Innovative Properties Co

Herein are disclosed wall repair compounds comprising at least one or more polymeric binder latex emulsions, one or more inorganic fillers, and comprising an amount of organic polymeric thickener that is less than about 0.1 percent by weight based on the total weight of the wall repair compound. In certain embodiments, the wall repair compound comprises an inorganic filler system selected such that such that synthetic inorganic fillers comprise essentially 100 percent of the inorganic filler used. In certain embodiments, the wall repair compound comprises one or more glycol ether smoothing agents.

Подробнее
Номер записи: 12
05-12-2013 дата публикации

Salt-tolerant, thermally-stable rheology modifiers

Номер: US20130324443A1
Автор: David Farrar, Janice Jianzhao Wang, Jun Zheng, Osama M. Musa
Принадлежит: ISP Investments LLC

A salt-tolerant, thermally-stable rheology modifier and, in particular, a rheology modifier for applications in oil-field well-bore fluids. In accordance with one aspect, the rheology modifier comprises a terpolymer of acrylamide, 2-acrylamido-2-methyl-propanesulfonic acid (AMPS) and a long-chain alkyl acrylate wherein the terpolymer is prepared by dispersion polymerization.

Подробнее
Номер записи: 13
06-01-2022 дата публикации

COVERING READINESS INDICATOR

Номер: US20220002195A1
Автор: Gretz Markus, Tsalos Johannis, WILDE Markus
Принадлежит:

The present invention relates to floor levelling compositions which can be mixed with water and comprise fluorescein or a derivative thereof. The present invention further relates to the use of fluorescein or fluorescein derivatives as indicator for the readiness for being covered of a floor levelling composition mixed with water. 111-. (canceled)12. A method of determining the readiness for covering of a levelling composition which has been applied to a substrate , the method comprising:a) providing a floor levelling composition which can be mixed with water, wherein the floor levelling composition comprises a fluorescein or a derivative thereof;b) mixing the floor levelling composition with water in a suitable ratio; andc) applying and distributing the floor levelling composition on the substrate,wherein a color change of the floor levelling composition indicates the readiness for covering of the levelling composition distributed on the substrate.13. The method of claim 12 , wherein the derivative of fluorescein is selected from the group consisting of eosin claim 12 , uranin and combinations thereof.14. The method of claim 12 , wherein the fluorescein and/or fluorescein derivative is present in an amount sufficient for determining the readiness for covering.15. The method of claim 14 , wherein the fluorescein and/or fluorescein derivative is present in an amount of 0.001% to 5.0% by weight based on the total weight of the dry composition.16. The method of claim 14 , wherein the fluorescein and/or fluorescein derivative is present in an amount of 0.006% to 1.0% by weight based on the total weight of the dry composition.17. The method of claim 14 , wherein the fluorescein and/or fluorescein derivative is present in an amount of 0.01% to 0.5% by weight based on the total weight of the dry composition.18. The method of claim 12 , wherein the floor levelling composition comprises a cement-based or calcium sulphate-based floor levelling composition.19. The method of ...

Подробнее
Номер записи: 14
07-01-2021 дата публикации

HYALOCLASTITE, SIDEROMELANE OR TACHYLITE POZZOLAN-BASED GEOPOLYMER CEMENT AND CONCRETE AND METHOD OF MAKING AND USING SAME

Номер: US20210002171A1
Автор: Ciuperca Romeo Ilarian
Принадлежит:

The invention comprises a cementitious material comprising a natural pozzolan selected from hyaloclastite, sideromelane or tachylite, wherein the natural pozzolan has a volume-based mean particle size of less than or equal to 40 μm. The cementitious material also comprising an aqueous alkaline activating solution suitable for forming a geopolymer. A method making a cementitious material is also disclosed. 1. A cementitious material comprising:a natural pozzolan selected from hyaloclastite, sideromelane, tachylite or combinations or mixtures thereof, wherein the natural pozzolan has a volume-based mean particle size of less than or equal to approximately 40 μm; andan aqueous alkaline activating solution suitable for forming a geopolymer.2. The cementitious material of claim 1 , wherein the natural pozzolan has a volume-based mean particle size of less than or equal to approximately 20 μm.3. The cementitious material of claim 1 , wherein the natural pozzolan has a volume-based mean particle size of less than or equal to approximately 10 μm.4. The cementitious material of claim 1 , wherein the natural pozzolan has a volume-based mean particle size of less than or equal to approximately 5 μm.5. The cementitious material of claim 1 , wherein the aqueous alkaline activating solution comprises a hydroxide selected from NaOH claim 1 , KOH claim 1 , CaOH claim 1 , and other minerals or compounds having reactive hydroxyl groups.6. The cementitious material of claim 5 , wherein the hydroxide is sodium hydroxide or potassium hydroxide.7. The cementitious material of claim 5 , wherein the aqueous alkaline activating solution further comprises a water-soluble alkali metal silicate.8. The cementitious material of claim 7 , wherein the water-soluble alkali metal silicate is sodium silicate or potassium silicate.9. The cementitious material of claim 1 , wherein the aqueous alkaline activating solution comprises sodium hydroxide or potassium hydroxide and sodium silicate or potassium ...

Подробнее
Номер записи: 15
04-01-2018 дата публикации

Dry grout composition and capsule for anchoring reinforcing member, dowel or anchor elements

Номер: US20180002228A1
Автор: Jacques Bertrand
Принадлежит: Individual

A dry grout composition including a calcium aluminosulfate based hydraulic cement, a mineral filler, a thixotropic agent, and a superplasticizer agent. Also, an anchoring capsule, containing the dry grout composition, for use in anchoring reinforcing member dowel, or anchor elements in a hole of a substrate, and a method of use.

Подробнее
Номер записи: 16
04-01-2018 дата публикации

Light Weight Gypsum Board

Номер: US20180002233A1
Автор: Song Weixin David, YU Qiang
Принадлежит:

This invention provides low dust low density gypsum wallboard products having high total core void volumes, corresponding to low densities in the range of about 10 to 30 pcf. The wallboards have a set gypsum core formed between two substantially parallel cover sheets, the set gypsum core preferably having a total void volume from about 80% to about 92%, and made from a slurry including stucco, pregelatinized starch, and a naphthalenesulfonate dispersant. The combination of the pregelatinized starch and the naphthalenesulfonate dispersant also provides a glue-like effect in binding the set gypsum crystals together. The wallboard formulation, along with small air bubble voids (and water voids) provides dust control during cutting, sawing, routing, snapping, nailing or screwing down, or drilling of the gypsum-containing products. This invention also provides a method of making the low dust low density gypsum products including the introduction of soap foam in an amount sufficient to form a total void volume, including air voids, preferably from about 80% to about 92% in the set gypsum core, corresponding to a set gypsum core density from about 10 pcf to about 30 pcf. The wallboards produced by the method generate significantly less dust during working. 155.-. (canceled)56. A light weight gypsum board comprising:a set gypsum core disposed between two cover sheets;the set gypsum core formed from a slurry comprising water, foam, and stucco;the set gypsum core comprising a gypsum crystal matrix having a pore size distribution comprising (i) water voids having a pore size less than about 5 microns in diameter, (ii) air voids having a pore size of at least about 5 microns and less than about 50 microns in diameter, (iii) air voids having a pore size from about 50 microns to about 100 microns in diameter, and (iv) air voids having a pore size greater than about 100 microns in diameter, the air voids having a pore size greater than about 100 microns in diameter comprising at ...

Подробнее
Номер записи: 17
02-01-2020 дата публикации

HIGH-STRENGTH GEOPOLYMER HOLLOW MICROSPHERE, PREPARATION METHOD THEREOF AND PHASE CHANGE ENERGY STORAGE MICROSPHERE

Номер: US20200002210A1
Автор: AN Longlong, BU Yuhuan, GUO Shenglai, LIU Huajie, Ma Rui
Принадлежит: CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)

A high-strength geopolymer hollow microsphere, a preparation method thereof and a phase change energy storage microsphere are provided, including: dissolving sodium hydroxide, sodium silicate and spheroidizing aid in water to form a solution A, and adding active powder to the solution A, stirring and uniformly mixing to form a slurry B, adding the slurry B to an oil phase, stirring and dispersing into balls, filtering to obtain geopolymer microspheres I, washing the geopolymer microspheres I, and then carrying out a high-temperature calcination to obtain the high-strength geopolymer hollow microspheres II; using the high-strength geopolymer hollow microsphere as a carrier, absorbing a phase change material into the carrier, and mixing a microsphere carrying the phase change material with an epoxy resin, adding a powder dispersant and stirring to disperse the microsphere, after the epoxy resin is solidified, screening the superfluous powder dispersant to obtain the phase energy storage microsphere. 1. A method of preparing high-strength geopolymer hollow microspheres , comprising: dissolving sodium hydroxide (NaOH) , sodium silicate (NaSiO.9HO) and a spheroidizing aid in water to form a solution , adding active powder to the solution to obtain a first mixture , stirring and uniformly mixing the first mixture to form a slurry , adding the slurry to an oil phase dispersion medium to obtain a second mixture , stirring the second mixture to disperse the slurry into the oil phase dispersion medium to form balls , after the stirring , filtering the second mixture to obtain geopolymer microspheres , washing the geopolymer microspheres , and then carrying out a high-temperature calcination on the geopolymer microspheres to obtain the high-strength geopolymer hollow microspheres; wherein a mass percentage of the sodium hydroxide (NaOH) , the sodium silicate (NaSiO.9HO) and the spheroidizing aid is (10-40%):(20-60%):(20-60%) , a mass ratio of the water to the active powder is ...

Подробнее
Номер записи: 18
05-01-2017 дата публикации

Chitin nanocrystal containing wellbore fluids

Номер: US20170002256A1
Автор: Lee Jeremy Hall
Принадлежит: Halliburton Energy Services Inc

The current invention relates to the use of chitin nanocrystals and chitin nanocrystal derivatives. More specifically, the present invention relates to the use of chitin nanocrystals and chitin nanocrystals used in oil and gas operations. The chitin nanocrystals and chitin nanocrystals derivatives can be used as additives to cement and wellbore fluids and can be used to inhibit corrosion in pipelines, on downhole tools and on other oil and gas related equipment.

Подробнее
Номер записи: 19
02-01-2020 дата публикации

WATER-SWELLABLE POLYMER PARTICLES

Номер: US20200002522A1
Автор: GUBBELS Erik
Принадлежит: BASF SE

The present invention is related to water-swellable polymer particles which contain a hydrophilic base polymer (B) and a hydrophobic polymer (P). It is also related to a process for producing the water-swellable polymer particles, an article containing the water-swellable polymer particles and the use of the water-swellable polymer particles. 2. The water-swellable polymer particles according to claim 1 , wherein the hydrophilic base polymer (B) comprises carboxyl groups claim 1 , sulfonic acid groups and/or salts thereof and mixtures thereof.3. The water-swellable polymer particles according to claim 1 , which have a particle size dequal to or below 250 μm.5. The water-swellable polymer particles according to claim 1 , wherein the hydrophilic base polymer (B) comprisesa) 10.0 to 70.0 mol-% of the at least one acid-containing monomer,b) 0.0 to 90.0 mol-% of the at least one (meth)acrylamido-containing monomer of formula (III), andc) 0.0 to 30.0 mol-% of the cross-linker.6. The water-swellable polymer particles according to claim 4 , wherein the at least one acid-containing monomer is selected from the group consisting of acrylic acid claim 4 , methacrylic acid claim 4 , ethacrylic acid claim 4 , α-chloroacrylic acid claim 4 , α-cyanoacrylic acid claim 4 , β-methylacrylic acid (crotonic acid) claim 4 , α-phenylacrylic acid claim 4 , β-acryloxypropionic acid claim 4 , sorbic acid claim 4 , α-chloro sorbic acid claim 4 , 2′-methylisocrotonic acid claim 4 , cinnamic acid claim 4 , p-chlorocinnamic acid claim 4 , itaconic acid claim 4 , citraconic acid claim 4 , mesacronic acid claim 4 , glutaconic acid claim 4 , aconitic acid claim 4 , maleic acid claim 4 , fumaric acid claim 4 , maleic anhydride claim 4 , 2-acrylamido-2-methylpropane sulfonic acid (AMPS) claim 4 , styrenesulfonic acid claim 4 , vinyl sulfonic acid claim 4 , allyl sulfonic acid claim 4 , 2-methylacrylamido-2-methylpropane sulfonic acid claim 4 , 2-acrylamidobutane sulfonic acid claim 4 , 3-acrylamido-3 ...

Подробнее
Номер записи: 20
01-01-2015 дата публикации

HYDRAULIC COMPOSITION

Номер: US20150005414A1
Автор: Ferreint Lilian, Guise Liam, Lombois-Burger Hélène, Sabio Serge
Принадлежит:

A method includes providing a hydraulic composition, wherein a setting time of the hydraulic composition is greater than or equal to 12 hours without triggering the setting of the hydraulic composition and a variation of the slump of the hydraulic composition measured according to the EN 12350-2 Standard, is less than 50 mm or a variation of the spread of the hydraulic composition measured with a cone according to the EN 12350-2 Standard, is less than 100 mm for at least 12 hours without triggering the setting of the hydraulic composition; and storing the hydraulic composition in a closed container; wherein storing of the hydraulic composition occurs for at least 12 hours without mixing, after which the hydraulic composition is useable without further mixing. 1. A method comprising: (1) from 220 to 500 kg, per cubic metre of hydraulic composition, of a hydraulic binder comprising Portland cement;', '(2) from 400 to 1800 kg, per cubic metre of fresh hydraulic composition, of a sand having a D10 greater than 0.1 mm and a D90 less than 4 mm;', '(3) from 0.1 to 5% by mass of dry extract relative to the mass of hydraulic binder, of a retarding agent comprising a carboxylic acid, a phosphonic acid or salts thereof;', '(4) from 0.05 to 5% by mass of dry extract relative to the mass of hydraulic binder, of a superplasticizer comprising a polyphosphate polyoxyalkylene polymer, a polyphosphonate polyoxyalkylene polymer, a. polysulfonate polyoxyalkylene polymer or a polycarboxylate polyoxyalkylene polymer, and', '(5) from 0.01 to 2% by mass of dry extract relative to the mass of hydraulic binder, of a rheology-modifying agent comprising a cellulose or a derivative of cellulose,', 'wherein a setting time of the hydraulic composition is greater than or equal to 12 hours without triggering the setting of the hydraulic composition and a variation of the slump of the hydraulic composition measured according to the EN 12350-2 Standard, is less than 50 mm or a variation of the spread ...

Подробнее
Номер записи: 21
12-01-2017 дата публикации

Method For Treating Clay And Clay-Bearing Aggregates and Compositions Therefor

Номер: US20170008800A1
Автор: Kuo Lawrence, Kwon O-il, Lee Ho, Tregger Nathan
Принадлежит:

The present invention provides compositions and methods involving the use of a carboxylate graft polymer having high molecular weight and low ratio of acid-to-polyoxyalkylene groups. Such clay-mitigation is particularly useful for treating clay and clay-bearing aggregates, particularly those aggregates used for construction purposes. The present invention minimizes the need to wash the aggregates, thus preserving fine aggregates (“fines”) content in construction materials, and thereby beneficiating the performance and/or properties of construction materials containing the clay-bearing aggregates. 118-. (canceled)2021-. (canceled)22. The method of wherein the carboxylate graft polymer composition further comprises at least one repeating unit of a polymerized (meth)acrylamide claim 19 , N-alkyl (meth)acrylamide claim 19 , N claim 19 ,N-dialkyl (meth)acrylamide claim 19 , 3-acrylamido-2-methylpropane sulfonic acid or its salts claim 19 , and styrene sulfonic acid or its salt claim 19 , or mixtures thereof.23. The method of wherein the plurality of clay-bearing aggregates comprises natural or manufactured sand claim 19 , crushed stone claim 19 , crushed gravel claim 19 , crushed rock claim 19 , crushed shale claim 19 , or mixtures thereof.24. The method of wherein said carboxylate graft polymer is mixed with the plurality of clay-containing aggregates in an amount of 0.1% to 100% by weight based on dry weight of clay contained in said plurality of aggregates.25. The method of wherein the carboxylate graft polymer is mixed with said plurality of clay-containing aggregates in an amount of 1% to 50% by weight based on dry weight of clay contained in said plurality of aggregates.26. The method of wherein said cementitious composition further comprises at least one chemical admixture selected from the group consisting of water-reducing agent claim 19 , set retarders claim 19 , set accelerators claim 19 , air entraining agents claim 19 , air detraining agents claim 19 , and ...

Подробнее
Номер записи: 22
12-01-2017 дата публикации

HYDROGEN SULFIDE SCAVENGER

Номер: US20170008802A1
Автор: Martin Jean Valery
Принадлежит: Innophos, Inc.

The present disclosure is related to a family of metals chelates for use as a hydrogen sulfide scavenger in asphalt, and the preparation thereof. The metal chelates, in particular amino acid metal chelates, are particularly efficient at reducing the hydrogen sulfide emissions of asphalt. 1. A composition comprising:(i) asphalt or an asphalt mix, and(ii) an amino acid metal chelate.2. The composition of claim 1 , wherein the amino acid metal chelate is selected from the group consisting of Boron Amino Acid Chelate; Boron Aspartate; Boron Citrate; Boron Glycinate; Calcium Alphaketoglutarate; Calcium Amino Acid Chelate; Calcium Arginate; Calcium Ascorbate; Calcium Aspartate; Calcium Caprylate; Calcium Carbonate; Calcium Citrate Malate; Calcium Glycinate; Calcium D-Glucarate; Calcium Krebs Cycle; Calcium Lactate; Calcium Malate; Calcium Orotate; Calcium Succinate; Chromium Amino Acid Chelate; Chromium Arginate; Chromium Chloride; Chromium Dinicotinate/Glycinate; Chromium Picolinate; Chromium Nicotinate; Chromium Trit; Chromium Yeast; Chromium Nicotinate/Glycinate; Copper Amino Acid Chelate; Copper Aspartate; Copper Carbonate; Copper Citrate; Copper Gluconate; Copper Bis-Glycinate; Copper Glycinate; Copper Sulfate; Copper Yeast; Iron Amino Acid Chelate; Iron Aspartate; Iron Bis-Glycinate HCl Soluble; Iron Citrate; Iron Fumarate; Iron Gluconate; Iron Glycinate; Iron Sulfate; Iron Yeast; Lithium Aspartate; Lithium Orotate; Magnesium Alphaketoglutarate; Magnesium Amino Acid Chelate; Magnesium Ascorbate; Magnesium Aspartate; Magnesium Citrate; Magnesium Gluconate; Magnesium Glycinate; Magnesium Malate; Magnesium Orotate; Magnesium Oxide; Magnesium Succinate; Magnesium Taurinate; Magnesium Yeast; Manganese Amino Acid Chelate; Manganese Aspartate; Manganese Carbonate; Manganese Citrate; Manganese Gluconate; Mananese Glycinate; Manganese Sulfate; Manganese Yeast; Molybdenum Amino Acid Chelate; Molybdenum Trit; Molybdenum Yeast; Sodium Molybdate; Phosphorus Amino Acid Chelate; ...

Подробнее
Номер записи: 23
10-01-2019 дата публикации

Overcoming the Retardation of Cement Hydration from Dispersing Agents used in Suspension of Additives

Номер: US20190010378A1
Автор: Dias Toledo Filho Romildo, JR. William Cecil, Mendoza Reales Oscar, Pearl, Ravi Krishna
Принадлежит: Halliburton Energy Services, Inc.

A method of cementing a subterranean formation includes forming a cement composition comprising cementitious material, an aqueous base fluid, a nano-reinforcement particle suspension comprising a surfactant; and pozzolanic material; introducing the cement composition into a subterranean formation; and allowing the cement composition to set in the subterranean formation. A method of making a cement composition includes combining cementitious material, an aqueous base fluid, a nano-reinforcement particle suspension comprising a surfactant, and a pozzolanic material, where the rate of hydration of the surfaces of the cementitious material is less retarded by the surfactant than an equivalent cement composition without pozzolanic material. 1. A method of making a well cement composition comprising:combining a cementitious material; an aqueous base fluid; a nano-reinforcement particle suspension comprising a surfactant; and a pozzolanic material, wherein the pozzolanic material is selected from the group consisting of micro-pozzolanic material, nano-pozzolanic material, and combinations thereof; andwherein the rate of hydration of the surfaces of the cementitious material is less retarded by the surfactant than an equivalent cement composition without pozzolanic material.2. The method of claim 1 , wherein the nano-reinforcement particles are at least one selected from single wall carbon nano tubes (SWCNT) claim 1 , multi-wall carbon nanotubes (MWCNT) claim 1 , and combinations thereof.3. The method of claim 1 , wherein the surfactant is an anionic surfactant.4. The method of claim 1 , wherein the nano-reinforcement particle suspension comprising a surfactant and pozzolanic material are combined before adding the cementitious material and aqueous base fluid.5. The method of claim 1 , wherein the nano-reinforcement particles are present in an amount of about 0.01% to about 3.0% by weight of cement.6. The method of claim 1 , wherein the pozzolanic material is at least one ...

Подробнее
Номер записи: 24
09-01-2020 дата публикации

LOW-DUST FILLER FOR COMPOSITE BUILDING PRODUCT

Номер: US20200010645A1
Автор: NEMUNAITIS BRADLEY, OHLER JEFFREY, TUCHSCHERER FRED, VERES BENJAMIN
Принадлежит: THE EUCLID CHEMICAL COMPANY

A low-dust composite building product is provided. The low-dust composite building product includes a binder system comprising one or more of a thermoset resin, a diluent, and a hardener; and a low-dust filler material comprising filler particles that have been pre-coated with a coating agent comprising one or more of the thermoset resin, the diluent, and the hardener from the binder system. 1. A low-dust composite building product comprising:a binder system comprising a thermoset resin, a reactive diluent, and a hardener; anda low-dust filler material comprising filler particles, wherein the filler particles are pre-coated with a coating agent comprising the thermoset resin, the reactive diluent, and optionally the hardener from said binder system, wherein the thermoset resin and said low-dust filler material are present in the composite building product in a ratio from about 1:1 to about 1:8.2. The low-dust composite building product of claim 1 , wherein the coating agent has a viscosity of about 100 to 5 claim 1 ,000 cps.3. The low-dust composite building product of claim 1 , wherein said filler particles include any one or more of inert mineral aggregates claim 1 , sand claim 1 , silica claim 1 , calcium carbonate claim 1 , clay claim 1 , fuel ash claim 1 , fly ash claim 1 , ceramics claim 1 , and barium sulfate.4. The low-dust composite building product of claim 1 , wherein the thermoset resin is at least one of epoxy claim 1 , polyurethane claim 1 , polyurea claim 1 , polyester claim 1 , phenolic claim 1 , vinyl ester claim 1 , silicone claim 1 , polyaspartic claim 1 , and polyamide.5. The low-dust composite building product of claim 1 , wherein the thermoset resin comprises bisphenol A/epichlorohydrin epoxy resin.6. The low-dust composite building product of claim 1 , wherein the reactive diluent comprises one or more of neopentyl glycol diglycidyl ether claim 1 , 1 phenyl glycidyl ether claim 1 , n-butyl glycidyl ether claim 1 , C12-C14 alkyl glycidyl ether ...

Подробнее
Номер записи: 25
03-02-2022 дата публикации

COMB POLYMERS AS BLOCKING ADDITIVES FOR SWELLING CLAYS

Номер: US20220033306A1
Автор: Frunz Lukas, JUILLAND Patrick, VELTEN Ulf, WEIDMANN Jürg
Принадлежит: SIKA TECHNOLOGY AG

A comb polymer, in particular for use as a clay-inerting agent, including: a) at least one poly(alkylene oxide) side chain-bearing monomer unit M1 without ionic groups, b) optionally at least one cationic monomer unit MC, c) optionally at least one anionic monomer unit MA, d) optionally, at least one non-ionic monomer unit M3, wherein the molar ratio of the cationic monomer units MC to the side chain-bearing monomer units M1 is equal to or less than 10, the molar ratio of the anionic monomer units MA to the side chain-bearing monomer units M1 is less than 1, preferably equal to or less than 0.5, and the molar ratio of the non-ionic monomer units M3 to the side chain-bearing monomer units M1 is less than 5. 6. A comb polymer according to claim 1 , wherein the comb polymer claim 1 , with respect to the total number of monomer units present in the comb polymer claim 1 , comprises:{'sup': '1', 'a) 95-100 mol-%, of the at least one poly(alkylene oxide) side chain-bearing monomer unit M,'}b) 0-1 mol-%, of the at least one cationic monomer unit MC,c) 0-1 mol-%, of the at least one anionic monomer unit MA,d) 0-1 mol-%, of the at least one non-ionic monomer unit M3.7. A comb polymer according to claim 1 , wherein the comb polymer claim 1 , with respect to the total number of monomer units present in the comb polymer claim 1 , comprises:{'sup': '1', 'a) 30-70 mol-%, of of the at least one poly(alkylene oxide) side chain-bearing monomer unit M, and b) 0-1 mol-%, of the at least one cationic monomer unit MC,'}c) 0-1 mol-%, of the at least one anionic monomer unit MA,d) 30-70%, of the at least one non-ionic monomer unit M3.8. A comb polymer according to claim 1 , wherein the comb polymer claim 1 , with respect to the total number of monomer units present in the comb polymer claim 1 , comprises:{'sup': '1', 'a) 10-99 mol-%, of the at least one poly(alkylene oxide) side chain-bearing monomer unit M, and'}b) 1-90 mol-%, of the at least one cationic monomer unit MC,c) 0-1 mol-%, of ...

Подробнее
Номер записи: 26
15-01-2015 дата публикации

Self priming spackling compound

Номер: US20150018454A1
Автор: Hal A. LeFleur, III, John E. Gozum
Принадлежит: 3M Innovative Properties Co

A self-priming spackling compound includes between about 35% by weight and about 65% by weight acrylic latex resin, between about 20% by weight and about 50% by weight filler material, and between about 1% by weight and about 20% by weight water. In certain aspects, the latex resin may have an average latex particle size of less than about 0.18 microns, a minimum film formation temperature of less than about 15 degrees Celsius, and/or a glass transition temperature (Tg) of less than about 25 degrees Celsius. To further enhance the self-priming performance of the spackling compound, the formulation may further comprise a colorant such as titanium dioxide.

Подробнее
Номер записи: 27
17-01-2019 дата публикации

FLUIDIZING MIX FOR A COMPOSITION WITH A BASE OF HYDRAULIC BINDER

Номер: US20190016635A1
Автор: Rinaldi David, ROCCA Denis, VENON Stéphane, Villard Emmanuel
Принадлежит:

The present invention relates to a hydraulic composition comprising: 114.-. (canceled)15. A method to reduce the setting start time of a hydraulic composition comprising at least one hydraulic binder and at least one first water-reducing additive comprising at least one phosphonic amino-alkylene group , the method comprising adding at least one second water-reducing additive comprising at least one polycarboxylate of polyoxyalkylene of methacrylic acid with a comb structure to the hydraulic composition and the concentration by weight of dry extract of the second water-reducing additive being in a range from 30% to 95% of the concentration by weight of dry extract of the first water-reducing additive.16. The method according to claim 15 , wherein the concentration by weight of dry extract of the second water-reducing additive is in a range from 30% to 90% of the concentration by weight of dry extract of the first water-reducing additive.17. The method according to claim 15 , wherein the concentration by weight of dry extract of the second water-reducing additive is in a range from 40% to 90% of the concentration by weight of dry extract of the first water-reducing additive.20. The method according to claim 15 , wherein the concentration of the second water-reducing additive relative to the first water-reducing additive is such that a dosage of a mixture of said first and second water-reducing additives in said hydraulic composition to obtain an initial spread or slump is less than a dosage of only said first water-reducing additive in said hydraulic composition that is used to obtain said initial spread or slump.21. The method according to claim 20 , wherein a setting start time of said hydraulic composition is less than 50% of that obtained with said dosage of only said first water-reducing additive in said hydraulic composition.22. The method according to claim 20 , wherein said dosage of the mixture is less than 50% of said dosage of only said first water-reducing ...

Подробнее
Номер записи: 28
17-01-2019 дата публикации

WELLBORE CEMENT HAVING POLYMER CAPSULE SHELLS

Номер: US20190016941A1
Автор: Contreras Elizabeth Q.
Принадлежит: Saudi Arabian Oil Company

Capsules with a cement additive covered by a polymeric outer shell are added to wellbore cement. The additive is released from the shells by osmosis or shell ruptures. Capillary forces draw the additive into micro-annuli or cracks present in the cement, where the additive seals the micro-annuli and cracks to define a self-sealing material. The empty shells remain in the cement and act as an additive that modifies cement elasticity. The capsules are formed by combining immiscible liquids, where one of the liquids contains a signaling substance, and each of the liquids contains a reagent. When combined, the liquids segregate into a dispersed phase and a continuous phase, with the dispersed phase having the signaling agent. The reagents react at interfaces between dispersed and continuous phases and form polymer layers encapsulating the signaling agent to form the capsules. Adjusting relative concentrations of the reagents varies membrane strength and permeability. 1. A method of wellbore operations comprising:injecting a slurry into the wellbore, the slurry including a cement and capsules, the capsules comprising an encapsulant encased within polymeric shell;urging the slurry into an annular space between a sidewall of the wellbore and a tubular in the wellbore; andcuring the slurry in the wellbore to create a set cement in the wellbore that seals against and adheres to the tubular and the sidewall to form sealing and adhering interfaces between the set cement and both of the tubular and sidewall, where the capsules are configured to increase an elasticity of the set cement, so that when one of the tubular or sidewall are displaced, the set cement correspondingly undergoes deformation to retain the sealing and adhering interfaces.2. The method of claim 1 , where the polymeric shells comprise from about 3 percent by weight of the cement to about 5 percent by weight of the cement.3. The method of claim 1 , wherein the deformation of the set cement causes a stress at a ...

Подробнее
Номер записи: 29
18-01-2018 дата публикации

CERAMIC BINDER COMPOSITION FOR CERAMIC COATED SEPARATOR FOR LITHIUM ION BATTERIES, METHODS OF PRODUCING SAME, AND USES THEREOF

Номер: US20180019457A1
Автор: ALHARIZAH Alaa, CHU Sung Gun, FILLIPO Bruce, GOLIASZEWSKI Alan Edward, Hood David K., PENG Shufu, TALLON Michael A. A.
Принадлежит:

A ceramic binder composition is disclosed as well as a method of making and using the same. Additionally, a ceramic coated separator used in, for example but without limitation, lithium ion batteries is disclosed. 1. A ceramic binder composition , comprising:at least one ceramic particle; anda binder comprising a polymer at least partially crosslinked with a crosslinking agent, wherein the polymer is a copolymer produced from monomers comprising (i) vinylpyrrolidone and (ii) at least one monomer having a functionality selected from the group consisting of an amine, an epoxide, and combinations thereof.2. The composition of claim 1 , wherein the at least one ceramic particle is selected from the group consisting of alumina claim 1 , alumina oxide hydroxide claim 1 , SiO claim 1 , BaSO claim 1 , TiO claim 1 , SnO claim 1 , CeO claim 1 , ZrO claim 1 , BaTiO claim 1 , YO claim 1 , BO claim 1 , and combinations thereof.35.-. (canceled)6. The composition of claim 1 , wherein the polymer is a copolymer produced from monomers comprising vinylpyrrolidone and at least one monomer having at least one amine functional group.7. The composition of claim 6 , wherein the polymer is selected from the group consisting of (a) a copolymer produced from monomers comprising vinylpyrrolidone and dimethylaminopropyl methacrylamide (DMAPMA) claim 6 , (b) a copolymer produced from monomers comprising vinylpyrrolidone and dimethylaminoethyl methacrylate (DMAEMA) claim 6 , (c) a copolymer produced from monomers comprising vinylpyrrolidone claim 6 , vinylcaprolactam claim 6 , and DMAEMA claim 6 , (d) a copolymer produced from monomers comprising vinylpyrrolidone claim 6 , vinylcaprolactam claim 6 , and DMAPMA claim 6 , and (e) combinations thereof.811-. (canceled)12. The composition of claim 6 , wherein the crosslinking agent comprises a compound comprising at least two epoxide groups.13. The composition of claim 12 , wherein the crosslinking agent comprises at least one water dispersible multi ...

Подробнее
Номер записи: 30
26-01-2017 дата публикации

Calcium sulfate composition comprising an additive

Номер: US20170022108A1
Автор: Harald Grassl, Martin Winklbauer, Oliver Mazanec, Torben Gaedt
Принадлежит: BASF SE

The invention relates to a composition comprising at least 10 wt. % of a binder based on calcium sulfate and 0.005 to 5 wt. % of an additive made of at least one water-soluble salt of a multivalent metal cation, at least one compound which is capable of releasing an anion that forms a poorly soluble salt together with the multivalent metal cation, and at least one polymer dispersant which comprises anionic and/or anionogenic groups and polyether side chains. The invention further relates to a method for producing said composition and to the use thereof as a calcium sulfate flow screed, a flowable calcium sulfate filler compound, or an earth-moist calcium sulfate screed.

Подробнее
Номер записи: 31
26-01-2017 дата публикации

Polyphosphoric acid resistant hydrogen sulfide scavenger for use in asphalt applications

Номер: US20170022109A1
Автор: Donald Wolfe, Jerry Weers, Kyle Cattanach, Matthew Barnes, Paul Biggerstaff, Ross Rivers POLAND, Timothy O'brien
Принадлежит: Baker Hughes Inc

A method and composition for reducing hydrogen sulfide generated or emitted from an asphalt composition are disclosed. In certain aspects, a method for reducing hydrogen sulfide emissions from an asphalt composition is provided wherein an additive is mixed with the asphalt composition and the additive is a copper-based complex. The asphalt composition can include asphalt and an asphalt modifying acid. The copper-based complex can comprise copper carboxylate. The copper carboxylate can be an oil-soluble metal organic.

Подробнее
Номер записи: 32
24-01-2019 дата публикации

METHOD FOR CREATING A MINERAL TRIOXIDE AGGREGATE MATERIAL WITH IMPROVED BIOLOGICAL EFFECTS

Номер: US20190021958A1
Автор: Ndungu Geoffrey, Wilkinson Kevin
Принадлежит: DENTSPLY SIRONA, Inc.

A dental device is improved in its ability to produce hydroxyl apatite by having a layer of mineral trioxide aggregate (MTA) deposited thereon. A tile of MTA is prepared, heat treated and sintered to produce a micronized tile of MTA that can then be deposited by physical vapor depositions, hot isostatic pressing, molding or other conventional technique. 1. An implantable dental device comprising a layer of mineral trioxide aggregate that produces hydroxyl apatite in the presence of phosphate buffered saline.2. An implantable dental device as in wherein said device is an obturation point.3. An implantable device as in wherein said obturation point comprises gutta-percha.4. A method for producing hydroxyl apatite on a dental device comprising the step of preparing a tile of mineral trioxide aggregate.5. A method as in further comprising forming a mixture by mixing Portland cement and deionized water in an amount of from about 10:1 to about 1:10.6. A method as in wherein said mixture is placed into a mold and cured in a humidity chamber.7. A method as in wherein said humidity chamber is set at 36 degrees Celsius with about a 90 percent relative humidity for from about 5 hours to about 10 days.8. A method as in wherein said cured mixture is subjected to a second heating by heating to from about 50 to about 500 degrees Celsius for from about 15 minutes to about 2 days.9. A method as in wherein said method includes micronizing said cured tile.10. A method as in wherein said micronizing includes ball-mill grinding said tile to a particle size of from about 1 to about 200 microns.11. A method as in wherein said micronizing includes ball-mill grinding said tile to a particle size of from about 10 to about 100 microns.12. A method as in wherein said micronizing includes ball-mill grinding said tile to a particle size of about 53 microns.13. A method as in wherein said micronized tile is sintered at a temperature of from about 25 to about 400 degrees Celsius for a period of ...

Подробнее
Номер записи: 33
25-01-2018 дата публикации

Epoxy resin-containing cement-bound composition for electrically conductive coatings or seal coats

Номер: US20180022647A1
Автор: David Teichert, Jochen Grotzinger, Lars Conrad
Принадлежит: SIKA TECHNOLOGY AG

A multicomponent composition including: A) a binder component (A) including at least one epoxy resin, B) an aqueous hardener component (B) including at least one amine compound as an amine hardener and water, and C) a solid component (C) including at least one hydraulic inorganic binder, preferably cement, the multicomponent composition containing, relative to the total weight, at least 8% by weight of an organic binder, the total amount of epoxy resin and amine hardener constituting the organic binder, and at least one organic salt. The multicomponent composition preferably includes at least one pigment as the colorant. The multicomponent composition can be used to produce conductive floor coatings or floor seal coats suitable for ESD floor coatings. The coatings or seal coats can be produced in a large number of color hues.

Подробнее
Номер записи: 34
10-02-2022 дата публикации

CEMENTITIOUS REAGENTS, METHODS OF MANUFACTURING AND USES THEREOF

Номер: US20220041504A1
Автор: Lake Donald John
Принадлежит:

Described are cementitious reagent materials produced from globally abundant inorganic feedstocks. Also described are methods for the manufacture of such cementitious reagent materials and forming the reagent materials as microspheroidal glassy particles. Also described are apparatuses, systems and methods for the thermochemical production of glassy cementitious reagents with spheroidal morphology. The apparatuses, systems and methods makes use of an in-flight melting/quenching technology such that solid particles are flown in suspension, melted in suspension, and then quenched in suspension. The cementitious reagents can be used in concrete to substantially reduce the COemission associated with cement production. 2. The cementitious reagent of claim 1 , wherein the cementitious reagent comprises a powder.3. The cementitious reagent of claim 1 , wherein the cementitious reagent is at least about 40% x-ray amorphous.4. The cementitious reagent of claim 1 , wherein the microspheroidal glassy particles are at least about 40% x-ray amorphous.5. The cementitious reagent of claim 1 , wherein the microspheroidal glassy particles have a mean roundness (R) of at least 0.9.6. The cementitious reagent of claim 1 , wherein less than about 50% of the microspheroidal glassy particles have a mean roundness (R) of less than 0.7.7. The cementitious reagent of claim 1 , wherein the microspheroidal glassy particles have a Sauter mean diameter D[3 claim 1 ,2] of about 20 micrometers or less.10. The cementitious reagent of claim 1 , having a molar ratio Si/(Fe claim 1 , Al) of between about 1 and about 30 claim 1 , and a CaO content of between about 1 wt. % and about 45 wt. %.12. The cementitious reagent of claim 1 , comprising less than about 10 wt. % CaO.14. The cementitious reagent of claim 1 , wherein the molar composition comprises (Ca claim 1 ,Mg).(Na claim 1 ,K).(Al claim 1 ,Fe).Si.15. The cementitious reagent of claim 1 , wherein the cementitious reagent is substantially free of ...

Подробнее
Номер записи: 35
10-02-2022 дата публикации

METHOD FOR SELECTING THE COMPOSITION OF A CONSTRUCTION MATERIAL COMPRISING AN EXCAVATED CLAY SOIL, METHOD AND SYSTEM FOR PREPARING SUCH A CONSTRUCTION MATERIAL

Номер: US20220041516A1
Автор: Mercé Manuel, Neuville Mathieu
Принадлежит:

The invention relates to a method () for selecting the composition of a construction material including an excavated clay soil, said construction material composition to include deflocculating agent and activating agent quantities adapted to the excavated clay soil, said method including a step of receiving () a measured value of at least one physicochemical property of an excavated clay soil, and a step of selecting () a deflocculating agent quantity and an activating agent quantity adapted to the excavated clay soil. In addition, the invention also relates to a method () for calibrating a calculation algorithm for determining the composition of a site construction material, to a construction material formed from an excavated clay soil, and to a system () for preparing a construction material including an excavated clay soil. 1. A method for selecting the composition of a construction material including an excavated clay soil , said construction material composition to include deflocculating agent and activating agent quantities adapted to the excavated clay soil , said method being implemented by a computer device including a calculation module , said method including:A step of receiving, from the calculation module, a measured value of at least one physicochemical property of an excavated clay soil; andA step of selecting, by the calculation module, a deflocculating agent quantity and an activating agent quantity adapted to the excavated clay soil based on a comparison of the measured value with reference values, said reference values including correlations between prior-measured values of the at least one physicochemical property of a clay soil and deflocculating agent and activating agent quantities adapted to said clay soil to form a construction material.2. The method according to claim 1 , wherein the at least one physicochemical property is selected from: content of clays in the excavated clay soil claim 1 , nature of the clays claim 1 , particle size claim ...

Подробнее
Номер записи: 36
24-01-2019 дата публикации

Reaction Resin Composition, Multi-Component System and Use Thereof

Номер: US20190023613A1
Автор: GALLEF Mickael, JIMENEZ Angel, PFEIL Armin
Принадлежит:

Disclosed is a reaction resin composition comprising: a radically polymerizable compound; an initiator system having an a-halo carboxylic acid ester and a catalyst system containing a copper (II) salt, a reducing agent and at least one ligand containing nitrogen; a hydraulically curing compound; and water. Also disclosed is a two- or multi-component system containing said reaction resin composition and uses of said composition for construction applications. 120-. (canceled)21. Reaction resin composition havingA radically polymerizable compound, An α-halocarboxylic acid ester and', A copper(II) salt', 'A reducing agent and', 'At least one nitrogen-containing ligand, 'A catalyst system, which comprises'}], 'An initiator system, which contains'}A hydraulically curing and/or polycondensable compound andWater.22. Reaction resin composition according to claim 21 , wherein the reducing agent is selected from the group consisting of ascorbic acid and its salts or derivatives claim 21 , saccharides with a reducing effect claim 21 , tin(II) carboxylates claim 21 , hydroxylamines claim 21 , phenolic reducing agents claim 21 , catecholes claim 21 , hydroxylamines [sic] and combinations thereof.23. Reaction resin composition according to claim 21 , wherein the α-halocarboxylic acid ester is wholly or partially soluble or emulsifiable in water.25. Reaction resin composition according to claim 24 , wherein the copper(II) salt is selected from the group that consists of Cu(II)(PF) claim 24 , CuX claim 24 , where X=CI claim 24 , Br claim 24 , I claim 24 , Cu(OTf)and Cu(ll) carboxylates.26. Reaction resin composition according to claim 21 , wherein the nitrogen-containing ligand contains two or more nitrogen atoms and can form with copper(I) a chelate complex.27. Reaction resin composition according to claim 26 , wherein the nitrogen-containing ligand is selected among amino compounds with at least two primary claim 26 , secondary and/or tertiary amino groups or amino compounds with ...

Подробнее
Номер записи: 37
24-01-2019 дата публикации

Limonene polystyrene blends for use in concrete

Номер: US20190023620A1
Автор: Darrin Vogeli
Принадлежит: Darrin Vogeli, Molly Wells Vogeli

A blended composition for use as an admixture for cementitious materials, compressing polystyrene dissolved in a cyclic terpene, and capable of modifying the strength, plasticity, and water-permeability of the cement.

Подробнее
Номер записи: 38
24-01-2019 дата публикации

Loss Circulation Compositions (LCM) Having Portland Cement Clinker

Номер: US20190023966A1
Автор: Reddy B. Raghava
Принадлежит:

Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided. 16-. (canceled)7. A method to control lost circulation in a lost circulation zone in a wellbore , comprising: Portland cement clinker, wherein the Portland cement clinker consists of non-hydraulic, non-cementiceous unground Portland cement clinker particles; and', 'a polyuronide, the polyuronide selected to crosslink in the presence of calcium dissolved from the clinker., 'introducing a lost circulation material (LCM) into the wellbore such that the LCM contacts the lost circulation zone and reduces a rate of lost circulation into the lost circulation zone as compared to a period before introducing the LCM, wherein the LCM comprises8. The method of claim 7 , wherein the Portland cement clinker comprises ASTM International Type I cement clinker claim 7 , ASTM International Type V cement clinker claim 7 , API Class A cement clinker claim 7 , and API Class G cement clinker.9. The method of claim 7 , wherein the polyuronide comprises an alginate or a pectinate.10. The method of claim 7 , wherein the polyuronide comprises apple pectin or citrus pectin.11. The method of claim 7 , wherein the polyuronide comprises an amount in the range of 0.5 weight of the total weight (w/w %) by weight of water to 3 w/w % by weight of water.12. The method of claim 7 , wherein the cement clinker comprises a plurality of ...

Подробнее
Номер записи: 39
24-01-2019 дата публикации

Loss Circulation Compositions (LCM) Having Portland Cement Clinker

Номер: US20190023969A1
Автор: Reddy B. Raghava
Принадлежит:

Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided. 1. A lost circulation material (LCM) composition , comprising:Portland cement clinker, wherein the Portland cement clinker consists of non-hydraulic, non-cementiceous unground Portland cement clinker particles;a polyuronide selected to crosslink in the presence of calcium dissolved from the clinker.2. The LCM composition of claim 1 , wherein the Portland cement clinker comprises ASTM International Type I cement clinker claim 1 , ASTM International Type V cement clinker claim 1 , API Class A cement clinker API Class G cement clinker.3. The LCM composition of claim 1 , wherein the polyuronide comprises an alginate or a pectin.4. The LCM composition of claim 1 , wherein the polyuronide comprises apple pectin or citrus pectin.5. The LCM composition of claim 1 , wherein the polyuronide comprises an amount in the range of 0.5 weight of the total weight (w/w %) by weight of water to 3 w/w % by weight of water.6. The LCM composition of claim 1 , wherein the cement clinker comprises a plurality of particles each having a diameter greater than 1 centimeter. This application is a divisional of and claims priority from U.S. Non-provisional application Ser. No. 15/788,457 filed Oct. 19, 2017, and titled “LOSS CIRCULATION COMPOSITIONS (LCM) HAVING PORTLAND CEMENT CLINKER, which claims priority from U.S. ...

Подробнее
Номер записи: 40
24-01-2019 дата публикации

Loss Circulation Compositions (LCM) Having Portland Cement Clinker

Номер: US20190023970A1
Автор: Reddy B. Raghava
Принадлежит:

Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided. 1. A lost circulation material (LCM) composition , comprising:Portland cement clinker, wherein the Portland cement clinker consists of non-hydraulic, non-cementiceous unground Portland cement clinker particles;a polysaccharide;divinyl sulfone (DVS), the polysaccharide selected to crosslink in the presence of the DVS.2. The LCM composition of claim 1 , wherein the Portland cement clinker is selected from the group consisting of ASTM International Type I cement clinker claim 1 , ASTM International Type V cement clinker claim 1 , API Class A cement clinker claim 1 , and API Class G cement clinker.3. The LCM composition of claim 1 , wherein the polysaccharide comprises at least one of: xanthan gum claim 1 , hydroxyethyl cellulose claim 1 , diutan gum claim 1 , welan gum and guar gum.4. The LCM composition of claim 1 , wherein the polysaccharide comprises a combination of xanthan gum and guar gum.5. The LCM composition of claim 1 , wherein the polysaccharide comprises an amount in the range of 0.5 weight of the total weight (w/w %) to 0.8 w/w %.6. The LCM composition of claim 1 , wherein the weight ratio of polysaccharide to DVS is in the range of 1:1 to 1:0.5.7. The LCM composition of claim 1 , comprising sodium hydroxide in an amount sufficient to adjust the pH of a solution of the polysaccharide and ...

Подробнее
Номер записи: 41
24-01-2019 дата публикации

Loss Circulation Compositions (LCM) Having Portland Cement Clinker

Номер: US20190023971A1
Автор: Reddy B. Raghava
Принадлежит:

Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided. 1. A method to control lost circulation in a lost circulation zone in a wellbore , comprising: Portland cement clinker, wherein the Portland cement clinker consists of non-hydraulic, non-cementiceous unground Portland cement clinker particles;', 'a polysaccharide; and', 'divinyl sulfone (DVS), the polysaccharide selected to crosslink in the presence of the DVS., 'introducing a lost circulation material (LCM) into the wellbore such that the LCM contacts the lost circulation zone and reduces a rate of lost circulation into the lost circulation zone as compared to a period before introducing the LCM, wherein the LCM comprises2. The method of claim 1 , wherein the Portland cement clinker is selected from the group consisting of ASTM International Type I cement clinker claim 1 , ASTM International Type V cement clinker claim 1 , API Class A cement clinker claim 1 , and API Class G cement clinker.3. The method of claim 1 , wherein the polysaccharide comprises at least one of: xanthan gum claim 1 , hydroxyethyl cellulose claim 1 , diutan gum claim 1 , welan gum and guar gum.4. The method of claim 1 , wherein the polysaccharide comprises a combination of xanthan gum and guar gum.5. The method of claim 1 , wherein the polysaccharide comprises an amount in the range of 0.5 weight of the total weight (w/w %) ...

Подробнее
Номер записи: 42
23-01-2020 дата публикации

Inorganic Foam Based On Calcium Sulfoaluminate

Номер: US20200024201A1
Автор: Albrecht Gerhard, FEICHTENSCHLAGER Bernhard, GONZENBACH Urs, PETIT Pauline, STURZENEGGER Philip, TURCINSKAS Sarunas
Принадлежит:

The present invention relates to a process for preparing a particle-stabilized inorganic foam based on calcium sulfoaluminate, to a particle-stabilized inorganic foam based on calcium sulfoaluminate, to a cellular material obtainable by hardening and optionally drying the particle-stabilized inorganic foam based on calcium sulfoaluminate, and to a composition for preparing an inorganic foam formulation for providing a particle-stabilized inorganic foam based on calcium sulfoaluminate. 1. A process for preparing an inorganic foam comprising the steps of (i) at least one group of inorganic particles;', '(ii) at least one amphiphilic compound;', (iiia) at least one calcium sulfoaluminate mixture, and optionally', '(iiib) at least one further inorganic binder selected from the group consisting of hydraulic binders, latent hydraulic binders, pozzolanic binders, and mixtures thereof;, '(iii) at least one inorganic binder mixture comprising'}, '(iv) water; and optionally', '(v) at least one additive; and, '(1) mixing'}(2) foaming the resulting foam formulation by chemical, physical or mechanical foaming.2. The process according to claim 1 , wherein the at least one group of inorganic particles is selected from the group consisting of oxides claim 1 , hydroxides claim 1 , carbides claim 1 , nitrides claim 1 , phosphates claim 1 , carbonates claim 1 , silicates claim 1 , sulfates claim 1 , and mixtures thereof.3. The process according to claim 1 , wherein the at least one group of inorganic particles is selected from the group consisting of silica particles claim 1 , alumina particles claim 1 , zirconia particles claim 1 , CaCOparticles claim 1 , and mixtures thereof4. The process according to claim 1 , wherein the at least one group of inorganic particles has a median particle size Din the range of from 30 nm to 300 μm.5. The process according to any one of claims claim 1 , wherein the at least one amphiphilic compound comprises amphiphilic compounds with at least one polar ...

Подробнее
Номер записи: 43
24-04-2014 дата публикации

Passive downhole chemical release packages

Номер: US20140110102A1
Автор: Lee J. Hall
Принадлежит: Halliburton Energy Services Inc

An apparatus for releasing chemical agents in a well bore, comprising: a packaging material; a chemical agent, wherein the chemical agent is contained within the packaging material; and an adhesive, wherein the adhesive is attached to the packaging material and associated methods.

Подробнее
Номер записи: 44
23-01-2020 дата публикации

MICROENCAPSULATION OF MATERIALS USING CENOSPHERES

Номер: US20200024848A1
Автор: Wang Jialai
Принадлежит:

Disclosed are methods for incorporating core materials such as phase change materials or admixtures into building materials like concrete. The methods use cenospheres, which are then etched and loaded with the core material. The composition can also be coated with a thin film. Compositions containing cenospheres loaded with the various core materials are disclosed, as are building materials containing such compositions. 1. A composition , comprising: a perforated cenosphere and a core material , wherein the core material is encapsulated inside the perforated cenosphere , wherein the core material comprises a phase change material , and wherein the phase change material comprises a salt-water solution , a sugar alcohol , a paraffin , a fatty acid , a salt hydrate , a nitrate , a hydroxide , a hygroscopic material , or combinations thereof.2. The composition of claim 1 , wherein the perforated cenosphere is coated with silica claim 1 , titania claim 1 , alumina claim 1 , or a polymer.3. The composition of claim 1 , wherein the perforated cenosphere has an average diameter of from about 1 μm to about 2 claim 1 ,000 μm.4. The composition of claim 1 , wherein the core material is from about 20% to about 90% by weight of the composition.5. The composition of claim 1 , wherein the phase change material comprises a fatty acid claim 1 , a salt hydrate claim 1 , or combinations thereof.6. The composition of claim 1 , wherein the phase change material is paraffin wax.7. The composition of claim 1 , wherein the core material further comprises water.8. The composition of claim 1 , wherein the phase change material has a melting temperature of from −100° C. to about 400° C.9. The composition of claim 1 , wherein the phase change material has a melting enthalpy of from about 150 MJ/mto about 300 MJ/m.10. The composition of claim 1 , wherein the core material further comprises a concrete admixture.11. The composition of claim 1 , wherein core material further comprises an ...

Подробнее
Номер записи: 45
28-01-2021 дата публикации

Detachable adhesive composition systems and methods

Номер: US20210024785A1
Автор: Ron Nagar
Принадлежит: Pimea 6

A detachable adhesive composition for selectively adhering to an object and detaching therefrom, including an adhesive compound and a plurality of selectively activated particles. The composition is configured to adhere to an object when the selectively activated particles are inactive, and the plurality of selectively activated particles are configured to be activated upon exposure to and absorption of energy causing the selectively activated particles to flow and expand so as to form micro-cracks in the adhesive compound, flow into the micro-cracks, and react with the adhesive compound by at least one of at least partially chemically reacting with adhesive compound so as to at least partially digest the adhesive compound, and lubricating the adhesive compound so as to allow the detachable adhesive composition to detach from the object.

Подробнее
Номер записи: 46
02-02-2017 дата публикации

MICROENCAPSULATION OF MATERIALS USING CENOSPHERES

Номер: US20170030077A1
Автор: Wang Jialai
Принадлежит:

Disclosed are methods for incorporating core materials such as phase change materials or admixtures into building materials like concrete. The methods use cenospheres, which are then etched and loaded with the core material. The composition can also be coated with a thin film. Compositions containing cenospheres loaded with the various core materials are disclosed, as are building materials containing such compositions. 1. A composition , comprising: a cenosphere and a core material , wherein the core material is encapsulated inside the cenosphere.2. The composition of claim 1 , wherein the cenosphere is coated with silica claim 1 , titania claim 1 , alumina claim 1 , or a polymer.3. The composition of claim 1 , wherein the cenosphere has an average diameter of from about 1 μm to about 2 claim 1 ,000 μm.4. The composition of claim 1 , wherein the core material is from about 20% to about 90% by weight of the composition.5. The composition of claim 1 , wherein the core material is phase change materials.6. The composition of claim 5 , wherein the phase change material is paraffin wax.7. The composition of claim 1 , wherein the core material is water.8. The composition of claim 5 , wherein the phase change material has a melting temperature of from −100° C. to about 400° C.9. The composition of claim 5 , wherein the phase change material has a melting enthalpy of from about 150 MJ/mto about 300 MJ/m.10. A composition claim 5 , comprising a cenosphere and a concrete admixture claim 5 , wherein the admixture is encapsulated inside the cenosphere.11. The composition of claim 10 , wherein the admixture is an antimicrobial agent claim 10 , a fire retardant claim 10 , a corrosion inhibitor claim 10 , a viscosity modifier claim 10 , superplasticizer claim 10 , or air.12. A building material claim 1 , comprising: the composition of and a material selected from the group consisting of tile claim 1 , stone claim 1 , brick claim 1 , mortar claim 1 , cement claim 1 , concrete ...

Подробнее
Номер записи: 47
17-02-2022 дата публикации

Construction material without a hydraulic binder

Номер: US20220048818A1
Автор: Coralie Brumaud, Gnanli Landrou, Guillaume Habert
Принадлежит: Eidgenoessische Technische Hochschule Zurich ETHZ

The invention relates to a method for producing a solid construction material which is preferably substantially free of hydraulic binder, comprising the steps of: a. extracting a mineral fraction comprising argillaceous particles of a soil; b. optionally adjusting the particle size of the mineral fraction extracted, in particular in relation to its clay, sand, gravel or loam content, if necessary; c. preparing a first aqueous grout from at least one part of the mineral fraction extracted and optionally adjusted in terms of particle size; d. adding a dispersant that can disperse the argillaceous particles in the first grout in order to obtain a second aqueous grout, e. adding a coagulant that can promote the agglomeration of the argillaceous particles in the second grout in order to obtain an aqueous construction material grout; f introducing the construction material grout into a formwork; and g. allowing the evaporation of the water contained in the material grout in order to obtain a solid construction material.

Подробнее
Номер записи: 48
17-02-2022 дата публикации

KARST CHANNEL TYPE WATER INRUSH EFFICIENT-BLOCKING ULTRA-HIGH EXPANSION GROUTING MATERIAL AND PREPARATION AND USING METHODS AND APPLICATION THEREOF

Номер: US20220048821A1
Автор: BAI Jiwen, CHEN Mengjun, DUAN Shaolong, LI Shucai, LI Xiuhao, LIU Rentai, MA Chenyang, SHENG Xiangchao, TIAN Jiawei, Wang Zhenjun, Zhang Chunyu, ZHANG Huasheng, ZHANG Mi
Принадлежит: Shandong University

A karst channel type water inrush efficient-blocking ultra-high expansion grouting material, preparation, methods and application thereof, the grouting material includes macromolecule polymer particles A and a cross-linking solidifying fluid B, wherein the macromolecule polymer particles A are an inlaid type core-shell structure, primary macromolecule water-absorbent resin serves as an inner core, part of a gelling catalyzer is attached to an the inner core surface forming a shell, and the gelling catalyzer permeates the inner core forming an inlaid structure; before use, the macromolecule polymer particle A and the cross-linking solidifying fluid B are stirred; and then obtained mixed liquid is used as the grouting material to be injected into a fracture of a rock mass fracture zone. By means of the grouting material, high-pressure large-flow karst water inrush can be efficiently treated, the blocking efficiency of water inrush is improved, and major underground engineering construction of China is further facilitated. 115-. (canceled)16. A preparation method of a karst channel type water inrush efficient-blocking ultra-high expansion grouting material , the method comprising:(1) adding a cross-linking agent into an acrylic acid solution, and then adding an active substance containing a hydrophilic group for polymerization reaction to obtain a precursor;(2) adding an initiator into the precursor obtained in step (1), heating for reaction to obtain a colloidal polymer, and smashing and drying the colloidal polymer to obtain primary macromolecule water-absorbent resin particles; and(3) uniformly spraying a gelling catalyzer onto the primary macromolecule water-absorbent resin particles, then performing drying, thus forming a shell structure with gel formed by catalyzing a cross-linking solidifying fluid B on a surface of the gelling catalyzer through cross-linking, and making part of the gelling catalyzer permeate into the primary macromolecule water-absorbent resin ...

Подробнее
Номер записи: 49
17-02-2022 дата публикации

LOW-DUST FILLER FOR COMPOSITE BUILDING PRODUCT

Номер: US20220049070A1
Автор: NEMUNAITIS BRADLEY, OHLER JEFFREY, TUCHSCHERER FRED, VERES BENJAMIN
Принадлежит: THE EUCLID CHEMICAL COMPANY

A low-dust composite building product is provided. The low-dust composite building product includes a binder system comprising one or more of a thermoset resin, a diluent, and a hardener; and a low-dust filler material comprising filler particles that have been pre-coated with a coating agent comprising one or more of the thermoset resin, the diluent, and the hardener from the binder system. 1. A system for preparing a low-dust composite building product comprising:a first component comprising a thermoset resin and optionally a reactive diluent;a second component comprising a hardener, anda third component comprising a low dust filler material comprising filler particles coated with a coating agent, wherein the coating agent comprises the thermoset resin, the reactive diluent, and optionally the hardener.2. The system for preparing a low-dust composite building product of claim 1 , wherein the coating agent has a viscosity of about 100 to 5 claim 1 ,000 cps.3. The system for preparing a low-dust composite building product of claim 1 , wherein the filler particles include any one or more of inert mineral aggregates claim 1 , sand claim 1 , silica claim 1 , calcium carbonate claim 1 , clay claim 1 , fuel ash claim 1 , fly ash claim 1 , ceramics claim 1 , and barium sulfate.4. The system for preparing a low-dust composite building product of claim 1 , wherein the thermoset resin is at least one of epoxy claim 1 , polyurethane claim 1 , polyurea claim 1 , polyester claim 1 , phenolic claim 1 , vinyl ester claim 1 , silicone claim 1 , polyaspartic claim 1 , and polyamide.5. The system for preparing a low-dust composite building product of claim 1 , wherein the thermoset resin comprises a bisphenol A/epichlorohydrin epoxy resin.6. The system for preparing a low-dust composite building product of claim 1 , wherein the reactive diluent comprises one or more of neopentyl glycol diglycidyl ether claim 1 , 1 phenyl glycidyl ether claim 1 , n-butyl glycidyl ether claim 1 , C12- ...

Подробнее
Номер записи: 50
17-02-2022 дата публикации

Accelerated cement compositions and methods for top-job cementing of a wellbore to reduce corrosion

Номер: US20220049146A1
Автор: Abdullah S. Al-Yami, Mohammad Abdullah Al-Harthi, Sara A. Alkhalaf, Vikrant WAGLE
Принадлежит: Saudi Arabian Oil Co

A method of reducing corrosion in tubular strings installed in wellbores includes dispensing an accelerated cement composition into a wellbore annulus, a casing-casing annulus, or both, the accelerated cement composition comprising a cement composition and an accelerant composition, where: the cement composition comprises a cement precursor and water; the accelerant composition comprises triethanolamine; and a concentration of the triethanolamine in the accelerated cement composition is greater than or equal to 10,000 parts per million by weight; allowing the accelerated cement composition to cure in the annulus to form a cured cement, where the triethanolamine reacts with a metal of the tubular string, the reaction forming a protective layer on the surfaces of the tubular string that inhibits dissolution of iron from the metal of the tubular string.

Подробнее
Номер записи: 51
31-01-2019 дата публикации

Co-grinding slag with other material for hydraulic binders

Номер: US20190031942A1
Автор: Darrell Chad Brenneis, Gregory Robert Hundt, James Robert Benkley, Jiten Chatterji
Принадлежит: Halliburton Energy Services Inc

A variety of systems, methods and compositions are disclosed for cementing in subterranean formations. Embodiments may include the use of slag co-grind in well cementing operations.

Подробнее
Номер записи: 52
04-02-2021 дата публикации

TWO-PART THIXOTROPIC LOST CIRCULATION SLURRY

Номер: US20210032526A1
Автор: JONES Paul J., Lewis Samuel J., Pisklak Thomas J.
Принадлежит:

Methods and systems of reducing lost circulation in a wellbore are provided. An example method includes providing a pozzolan slurry comprising a pozzolanic material and water; and providing a calcium slurry comprising a calcium source, a high pH activator, and water. The method further comprises allowing the pozzolan slurry and the calcium slurry to remain separate; wherein at least one of the pozzolan slurry and the calcium slurry comprise a thixotropic material; wherein at least one of the pozzolan slurry and the calcium slurry comprise a dispersant; wherein at least one of the pozzolan slurry and the calcium slurry comprise a weighting agent. The method additionally comprises mixing the pozzolan slurry and the calcium slurry to form a two-part thixotropic lost circulation slurry after the allowing the pozzolan slurry and the calcium slurry to remain separate. The method also includes introducing the two-part thixotropic lost circulation slurry to a lost circulation zone within the wellbore; and allowing or causing to allow the two-part thixotropic lost circulation slurry to set into a hardened mass within the lost circulation zone. 1. A method of reducing lost circulation in a wellbore , the method comprising:providing a pozzolan slurry comprising a pozzolanic material and water;providing a calcium slurry comprising a calcium source, a high pH activator, and water;allowing the pozzolan slurry and the calcium slurry to remain separate;wherein at least one of the pozzolan slurry and the calcium slurry comprise a thixotropic material; wherein at least one of the pozzolan slurry and the calcium slurry comprise a dispersant; wherein at least one of the pozzolan slurry and the calcium slurry comprise a weighting agent;mixing the pozzolan slurry and the calcium slurry to form a two-part thixotropic lost circulation slurry after the allowing the pozzolan slurry and the calcium slurry to remain separate;introducing the two-part thixotropic lost circulation slurry to a ...

Подробнее
Номер записи: 53
09-02-2017 дата публикации

POLYURETHANE HYBRID SYSTEM COMBINING HIGH COMPRESSIVE STRENGTH AND EARLY WATER RESISTANCE

Номер: US20170036960A1
Автор: BRACHT Kathrin, CONRAD Lars, GRÖTZINGER Jochen
Принадлежит: SIKA TECHNOLOGY AG

A multi-component composition including A) a polyol component (A) including at least one polyol and water, B) a hardener component (B) including at least one polyisocyanate, and C) a solid component (C) including a hydraulic binder and one or more aggregates, as an early water resistant construction or repair material for constructing, repairing or refurbishing component parts, wherein the mixed and applied multi-component composition is immersed in water not later than 8 hours, preferably not later than 2 hours, after application. The use as an early water resistant construction or repair material is especially suitable for component parts, which are in contact with water during operation such as offshore wind energy plants or water retaining systems, e.g. pipelines. 1. A multi-component composition comprisingA) a polyol component (A) comprising at least one polyol and water,B) a hardener component (B) comprising at least one polyisocyanate, andC) a solid component (C) comprising a hydraulic binder and one or more aggregatesas an early water resistant construction or repair material for constructing, repairing or refurbishing component parts, wherein the mixed and applied multi-component composition is immersed in water not later than 8 hours after application.2. A multi-component composition according to claim 1 , wherein the polyol component (A) comprises a castor oil as polyol and/or the hardener component (B) comprises a methylene diphenyl diisocyanate as polyisocyanate.3. A multi-component composition according to claim 1 , wherein the component part is a component part which is in contact with water during operation.4. A multi-component composition according to claim 1 , wherein the hydraulic binder comprises cement claim 1 , calcined paper sludge or other hydraulic binder system.5. A multi-component composition according to claim 1 , wherein the construction or repair material is a flooring material claim 1 , a coating composition claim 1 , a grout or a ...

Подробнее
Номер записи: 54
24-02-2022 дата публикации

CEMENTITIOUS REAGENTS, METHODS OF MANUFACTURING AND USES THEREOF

Номер: US20220055946A1
Автор: Lake Donald John
Принадлежит:

Described are cementitious reagent materials produced from globally abundant inorganic feedstocks. Also described are methods for the manufacture of such cementitious reagent materials and forming the reagent materials as microspheroidal glassy particles. Also described are apparatuses, systems and methods for the thermochemical production of glassy cementitious reagents with spheroidal morphology. The apparatuses, systems and methods makes use of an in-flight melting/quenching technology such that solid particles are flown in suspension, melted in suspension, and then quenched in suspension. The cementitious reagents can be used in concrete to substantially reduce the COemission associated with cement production. 2. The cementitious reagent of claim 1 , wherein the cementitious reagent comprises a powder.3. The cementitious reagent of claim 1 , wherein the cementitious reagent is at least about 40% x-ray amorphous.4. The cementitious reagent of claim 1 , wherein the microspheroidal glassy particles are at least about 40% x-ray amorphous.5. The cementitious reagent of claim 1 , wherein the microspheroidal glassy particles have a mean roundness (R) of at least 0.9.6. The cementitious reagent of claim 1 , wherein less than about 50% of the microspheroidal glassy particles have a mean roundness (R) of less than 0.7.7. The cementitious reagent of claim 1 , wherein the microspheroidal glassy particles have a Sauter mean diameter D[3 claim 1 ,2] of about 20 micrometers or less.10. The cementitious reagent of claim 1 , comprising less than about 10 wt. % CaO.12. The cementitious reagent of claim 1 , wherein the cementitious reagent is substantially free of fly ash.14. The cementitious reagent of claim 13 , wherein the cementitious reagent comprises a powder.15. The cementitious reagent of claim 13 , wherein the cementitious reagent is at least about 40% x-ray amorphous.16. The cementitious reagent of claim 13 , wherein the microspheroidal glassy particles are at least ...

Подробнее
Номер записи: 55
07-02-2019 дата публикации

POLYURETHANE HYBRID SYSTEM COMBINING HIGH COMPRESSIVE STRENGTH AND EARLY WATER RESISTANCE

Номер: US20190039953A1
Автор: BRACHT Kathrin, CONRAD Lars, GRÖTZINGER Jochen
Принадлежит: SIKA TECHNOLOGY AG

The invention relates to the use of a multi-component composition comprising A) a polyol component (A) comprising at least one polyol and water, B) a hardener component (B) comprising at least one polyisocyanate, and C) a solid component (C) comprising a hydraulic binder and one or more aggregates, as an early water resistant construction or repair material for constructing, repairing or refurbishing component parts, wherein the mixed and applied multi-component composition is immersed in water not later than 8 hours, preferably not later than 2 h, after application. 1. A method for constructing , repairing , or refurbishing at least one component part , the method comprising: A) a polyol component (A) comprising at least one polyol and water,', 'B) a hardener component (B) comprising at least one polyisocyanate, and', 'C) a solid component (C) comprising a hydraulic binder and one or more aggregates,, 'i) providing a multi-component composition comprisingii) mixing components (A), (B), and (C) of the multi-component composition to form a mixture,iii) applying the mixture either on the component part to repair or refurbish the component part or in a space that is not in contact with water to form the component part, andiv) immersing the applied mixture not later than 8 hours after the mixture is applied.2. The method according to claim 1 , further comprising curing the applied mixture after the mixture is applied.3. The method according to claim 2 , wherein at least part of the curing of the applied mixture is carried out underwater.4. The method according to claim 1 , wherein the applied mixture is immersed in water not later than 4 hours after the mixture is applied.5. The method according to claim 1 , wherein the applied mixture is immersed in water not later than 2 hours after the mixture is applied.6. The method according to claim 1 , wherein the applied mixture is immersed in water not earlier than 10 minutes after the mixture is applied.7. The method ...

Подробнее
Номер записи: 56
07-02-2019 дата публикации

AERATED COMPOSITE MATERIALS, METHODS OF PRODUCTION AND USES THEREOF

Номер: US20190039960A1
Автор: Atakan Vahit, Deo Omkar, Gupta Surojit, Hu Xudong, RAVIKUMAR Deepak, Riman Richard, SAHU Sadananda
Принадлежит:

The invention provides novel aerated composite materials that possess excellent physical and performance characteristics of aerated concretes, and methods of production and uses thereof. These composite materials can be readily produced from widely available, low cost raw materials by a process suitable for large-scale production with improved energy consumption, desirable carbon footprint and minimal environmental impact. 237.-. (canceled)38. A process for producing an aerated composite material , comprising: water,', 'a particulate comprising calcium oxide or silica having a median particle size in the range from about 10 μm to about 1 mm;', 'a ground calcium silicate having a median particle size in the range from about 1 μm to about 100 μm, and', 'an aerating agent,, 'forming a wet mixture, wherein the wet mixture comprisescasting the wet mixture in a mold;providing conditions for generation of a gaseous product from the aerating agent thereby causing volume expansion of the wet mixture; and{'sub': '2', 'curing the expanded mixture at a temperature in the range from about 20° C. to about 100° C. for about 6 hour to about 60 hours under an atmosphere of water and CO.'}39. The process of claim 38 , wherein curing the expanded mixture is performed under a pressure ranging from ambient atmospheric pressure to about 30 psi above ambient and under a COconcentration ranging from about 50% to about 99% to produce an aerated composite material.40. The process of claim 38 , wherein forming a wet mixture comprises mixing the following ingredients in the specified order of addition:adding water,adding and mixing ground calcium silicate;adding and mixing the particulate comprising calcium oxide or silica to form a uniform slurry; andadding and mixing the aerating agent.41. The process of claim 38 , wherein the wet mixture further comprises an additive selected from rheology modifying admixtures claim 38 , pigments claim 38 , retarders claim 38 , and accelerators.42. The ...

Подробнее
Номер записи: 57
18-02-2021 дата публикации

Methods of making cement slurries and cured cement and use thereof

Номер: US20210047556A1
Автор: Ashok Santra, Peter J. Boul
Принадлежит: Saudi Arabian Oil Co

Cured cements, cement slurries, and methods of making cured cement and methods of using cement slurries are provided. The method of making a modified cement slurry includes adding particles comprising carbon nanotube sponges disposed on sacrificial templates to a cement slurry to form the modified cement slurry and allowing the sacrificial templates to disintegrate, thereby leaving the carbon nanotube sponges dispersed throughout the modified cement slurry.

Подробнее
Номер записи: 58
16-02-2017 дата публикации

Fiberglass Materials, Methods Of Making, And Applications Thereof

Номер: US20170044048A1
Автор: Gordon N. Nameni, Jian Meng, John Rich, Mike Fagg, Paul A. Westbrook, William Leehr
Принадлежит: PPG Industries Ohio Inc

Embodiments of the present invention described herein relate to fiberglass materials, composite glass materials, methods of making fiberglass materials and composite glass materials, and different applications of fiberglass materials and composite glass materials. The fiberglass materials can include a bimodal particle size distribution. The fiberglass materials can include an average aspect ratio of greater than about 2 to 1. Also described herein are composite glass materials including a first glass material and a second material. The second material can include at least one of post-consumer glass waste, fly ash, metakaolin, and slag. Also described herein are methods of making a composite glass material including providing a first glass material to a mixer; providing a second material to the mixer; and co-milling the first glass material and a second material to form a composite glass material.

Подробнее
Номер записи: 59
15-02-2018 дата публикации

METHOD FOR PRODUCING A DISPERSANT

Номер: US20180044238A1
Автор: Bichler Manfred, DENGLER Joachim, GAEDT Torben, MAZANEC Oliver, Winklbauer Martin
Принадлежит: BASF SE

The invention relates to a method for producing a dispersant, comprising the steps of a) providing at least one water-soluble polymer comprising polyether groups, b) providing an inorganic component comprising at least one phyllosilicate which has an integral sheet charge of 0, 1 or 2, c) producing an aqueous suspension comprising the at least one water-soluble polymer comprising polyether groups and the inorganic component comprising the at least one phyllosilicate, and d) spray-drying the aqueous suspension to give a solid. Additionally disclosed is the use of the dispersant of the invention in an inorganic binder composition. 1. A method for producing a dispersant , comprising the steps ofa) providing at least one water-soluble polymer comprising polyether groups,b) providing an inorganic component, comprising at least one phyllosilicate which has an integral sheet charge of 0, 1 or 2,c) preparing an aqueous suspension comprising the at least one water-soluble polymer comprising polyether groups and the inorganic component comprising the at least one phyllosilicate,d) spray-drying the aqueous suspension to give a solid.2. The method according to claim 1 , wherein the polyether groups of the at least one water-soluble polymer are polyether groups of the structural unit (I) claim 1 ,{'br': None, 'sub': k', 'n, '*—U—(C(O))—X—(AlkO)—W \u2003\u2003(I)'}where* indicates the bonding site to the polymer,U is a chemical bond or an alkylene group having 1 to 8 carbon atoms,{'sup': '1', 'X is oxygen, sulfur or a group NR,'}k is 0 or 1,n is an integer whose average value based on the polymer is in the range from 3 to 300,{'sub': 2', '4', 'n, 'Alk is C-Calkylene, it being possible for Alk to be identical or different within the group (Alk-O),'}{'sub': 1', '8, 'W is a hydrogen, a C-Calkyl or an aryl radical or is the group Y-F, where'}Y is a linear or branched alkylene group having 2 to 8 carbon atoms and may carry a phenyl ring,{'sup': '2', 'F is a 5- to 10-membered nitrogen ...

Подробнее
Номер записи: 60
15-02-2018 дата публикации

Stabilized Solutions of Alkylalkoxysilane Hydrolysates and Flexible Films Formed Thereof

Номер: US20180044550A1
Автор: ARKLES Barry C., GOFF Jonathan D.
Принадлежит:

A stabilized mixture containing an alkyltrialkoxysilane hydrolysate solution and an amine functional silicone emulsion is provided. The stabilized mixture may be utilized in a masonry treatment product or a cellulosic or wood treatment product, such as to provide waterproofing properties, or in a hair care treatment product for improving hair combability. A method of preparing the mixture involves hydrolyzing an alkoxysilane to form an aqueous solution containing alkylsilanetriols and/or oligomeric alkylsilanetriol condensates; and stabilizing the solution by adding an amine functional silicone. 1. A stabilized mixture comprising an alkyltrialkoxysilane hydrolysate solution and an amine functional silicone emulsion.2. The mixture according to claim 1 , wherein the solution comprises alkylsilane triols and low molecular weight condensation products thereof having two to three silicon atoms.3. The mixture according to claim 1 , wherein the alkyl group in the alkyltrialkoxysilane contains about one to ten carbon atoms.4. The mixture according to claim 3 , wherein the alkyl group contains about two to eight carbon atoms.5. The mixture according to claim 1 , wherein the alkoxy group in the alkyltrialkoxysilane contains about one to four carbon atoms.6. The mixture according to claim 1 , wherein the silicone emulsion contains a high molecular weight amine functional polysiloxane containing alkoxy groups.7. The mixture according to claim 1 , further comprising a hydrophilic methacrylate.8. The mixture according to claim 7 , wherein the methacrylate is a hydroxyl-containing methacrylate.9. The mixture according to claim 1 , further comprising a polyalkylsiloxane fluid.10. The mixture according to claim 8 , wherein the polyalkylsiloxane is selected from polymethylethylsiloxane and polydiethylsiloxane.11. The mixture according to claim 1 , wherein the amine comprises an aminopropyl or aminoethylaminopropyl substitution.12. A method of preparing the mixture according to claim ...

Подробнее
Номер записи: 61
15-02-2018 дата публикации

SELF-REPAIRING CEMENT POLYMER COMPOSITES AND PROCESSES OF MAKING AND USING SAME

Номер: US20180044570A1
Автор: Childers M. Ian, Chun Jaehun, Fernandez Carlos A., Glezakou Vassiliki-Alexandra, Koech Phillip K., Nguyen Manh Thuong, Rod Kenton A., Um Wooyong
Принадлежит: BATTELLE MEMORIAL INSTITUTE

New cement-polymer composites and processes of making and using are detailed. One exemplary cement-polymer composite include a Portland cement, an epoxide polymer, a thiol-containing crosslinking agent, and an optional phase separation inhibitor. These composites are dynamically self-healing, mechanically robust, and thermally stable in high temperature environments and can be expected to increase service lifetimes in various applications including energy producing wellbores. 1. A self-repairing cement-polymer composition , comprising:a cement-containing material combined with an epoxide polymer and/or epoxide oligomers having at least one disulfide (S—S) group therein with a crosslinking agent and an optional phase-separation inhibitor therein all combined in an aqueous solvent forming a composite-forming slurry configured to form chemical bonds with compounds therein and structures and materials contacted thereby when introduced in a receiving location yielding a self-repairing and self-readhering cement-polymer composite matrix therein upon curing.2. The composite of wherein the cement-containing material is an Ordinary Portland Cement.3. The composite of wherein the epoxide polymer is selected from EPS 25; EPS 70; or EPS 25 and EPS 70.4. The composite of wherein the epoxide polymer comprises a terminal epoxide group.5. The composite of wherein the crosslinking agent includes a functional group selected from the group consisting of hydrogen; alcohols; thiols; ethers; esters; amines; amides; and combinations thereof.6. The composition of wherein the phase separation inhibitor includes at least one terminal functional group reactive with the epoxide polymer and/or epoxide oligomers thereof selected from the group consisting of amines; thiols; epoxides; alcohols; amides; carboxylates; carbonyls; and combinations thereof.7. The composition of wherein the phase separation inhibitor is selected from poly(ethylene glycol) diglycidyl ethers (PEO); poly(ethylene) glycols ...

Подробнее
Номер записи: 62
13-02-2020 дата публикации

Heat-transforming ceramic roasting cylinder and coffee bean roaster using the same

Номер: US20200046009A1
Автор: Sen-Kung Hsu
Принадлежит: Chun-Shyong LEE, Sen-Kung Hsu

A heat-transforming ceramic roasting cylinder and a coffee bean roaster using the same are provided. The ceramic roasting cylinder is made by grinding and mixing ball clay, kaolin clay, mullite, spodumene, and an energy ceramic material into a clay blank; molding the clay blank into ceramic green bodies; and sintering the ceramic green bodies at 1250˜1320° C. for 18˜24 hours. The ceramic roasting cylinder has an internal roasting space where coffee beans are loaded. The ceramic roasting cylinder also has evenly distributed capillary pores through which heat can circulate to induce the energy ceramic material in the roasting cylinder to release negative ions and far-infrared rays. The far-infrared rays can reduce the van der Waals forces between the oil molecules in the coffee beans instantly, splitting large oil molecules into smaller ones, ensuring the oil in the beans are released sufficiently, evenly, and rapidly to the vicinity of the bean surface.

Подробнее
Номер записи: 63
08-05-2014 дата публикации

Marble-like composite materials and methods of preparation thereof

Номер: US20140127450A1
Автор: Dawid ZAMBRZYCKI, Richard E. Riman
Принадлежит: Individual

The invention provides novel marble-like composite materials and methods for preparation thereof. The marble-like composite materials can be readily produced from widely available, low cost raw materials by a process suitable for large-scale production. The precursor materials include calcium silicate and calcium carbonate rich materials, for example, wollastonite and limestone. Various additives can be used to fine-tune the physical appearance and mechanical properties of the composite material, such as pigments (e.g., black iron oxide, cobalt oxide and chromium oxide) and minerals (e.g., quartz, mica and feldspar). These marble-like composite materials exhibit veins, swirls and/or waves unique to marble as well as display compressive strength, flexural strength and water absorption similar to that of marble.

Подробнее
Номер записи: 64
14-02-2019 дата публикации

Aqueous ampholyte polymer containing solutions for subterranean applications

Номер: US20190048246A1
Автор: Hsinchen Chung, Kevin Walter FREDERICK, Michael A. McCabe, Narongsak Tonmukayakul, Randy Jack LOEFFLER, Shih-Ruey Tom CHEN, Xiangnan YE, Yuntao Thomas Hu
Принадлежит: Solvay USA Inc

A aqueous solution that includes water, from 100,000 to 300,000 ppm of dissolved solids, from 0.5 to 3 gallons per thousand gallons of a water-in-oil emulsion, and an inverting surfactant. The water-in oil emulsion includes an oil phase and an aqueous phase where the oil phase is a continuous phase comprising an inert hydrophobic liquid and the aqueous phase is present as dispersed distinct particles in the oil phase. The aqueous phase contains water, a water soluble polymer, and surfactants. The water soluble polymer includes 30 to 50 weight percent of a non-ionic monomer, 5 to 15 weight percent of a sulfonic acid containing monomer, and 40 to 60 weight percent of a cationic monomer. The water soluble polymer makes up from 10 to 35 weight percent of the water-in-oil emulsion.

Подробнее
Номер записи: 65
25-02-2021 дата публикации

DELAYED-EXPANSION CEMENT AND CEMENTING OPERATIONS

Номер: US20210053874A1
Автор: DROGER Nicolas
Принадлежит:

A delayed-expansion cement mixture or slurry of hydraulic cement contains an expanding agent having hydrophobically modified surfaces with a hydrophobic and/or self-assembling film. A method to delay expansion of cement involves treating the expanding agent with a self-assembling film precursor compound, making the slurry with cement and water, and setting and expanding the cement. A cementing method places the mixture or slurry downhole where it is hardened and expanded. 1. A delayed-expansion cement mixture comprising:particles of hydraulic cement; anda finely-divided, hydratable expanding agent having hydrophobically modified surfaces comprising a hydrophobic film.2. The cement mixture according to comprising an aqueous slurry comprising the cement particles and from 0.1 to 25 weight percent of the expanding agent claim 1 , by total weight of the cement particles and the expanding agent.3. The cement mixture according to claim 1 , wherein the expanding agent comprises a hydratable compound selected from the group consisting of alkaline earth metal oxides and alkaline earth metal salts.4. The cement mixture according to claim 1 , wherein the hydraulic cement particles have hydrophilic surfaces and comprise Portland cement claim 1 , calcium aluminate cement claim 1 , fly ash claim 1 , blast furnace slag claim 1 , a lime/silica blend claim 1 , magnesium oxychloride claim 1 , a geopolymer claim 1 , zeolite claim 1 , chemically bonded phosphate ceramic claim 1 , or a combination thereof.5. The cement mixture according to claim 1 , wherein the expanding agent is surface-modified with a hydrophobic film precursor compound having the structure Y—Z—(CQ)-W—X claim 1 , wherein:Y is H, a halogen, or a hydrophobic moiety having m carbon atoms where m is from 1 to 40;Z is a covalent bond or an organic linking group having m′ carbon atoms;Q is H or F;n is from 1 to 40, provided that m+m′+n is from 6 to 40;W is a covalent bond or an organic linking group; andX is a moiety having ...

Подробнее
Номер записи: 66
13-02-2020 дата публикации

Controllable High Flow Concrete

Номер: US20200048152A1
Автор: Burns Elizabeth, Koyata Hideo, Kuo Lawrence L., Myers David, Rieder Klaus-Alexander, Roberts Mark F., TREGGER Nathan A.
Принадлежит:

The present invention relates to very high workable yet controllable concrete mix design, admixture composition, and process for placing concrete. The mix design relates to particular aggregate/cement ratios and types which are characteristic of ready mix concrete (RMC), which provide high fluidity reminiscent of self-consolidating concrete (SCC), and which provides advantages over both RMC and SCC in terms of ease and speed in placement and finishability at the construction site placement zone, regardless of whether into a horizontal formwork (e.g., for slabs, floors) or into vertical formwork (e.g., for blocks, walls, columns, etc.), without loss of control and without generating high risks of segregation even when small amounts of water are added at the size to facilitate finishing of the concrete surface. An inventive admixture combination which enables this unique design involves two different polycarboxylate comb polymers in combination with two specific viscosity modifying agents, and this combination provides highly workable concrete to be placed in a controlled, efficient manner. 1. A process for placing a high flow concrete into a placement zone , comprising:(A) providing, at a delivery site, at least one concrete delivery mixer-truck load of concrete having a total pour volume of 1 to 16 cubic yards into a placement zone, the concrete load mixture comprising (i) coarse aggregate in the amount of at least 1550 pounds per cubic yard based on total volume of the concrete load mixture, wherein at least thirty percent of the coarse aggregate is retained on a sieve with a 0.5 inch opening as determined by standard sieve testing under ASTM C33/C33M-16; (ii) cementitious binder in the amount of 376-752 pounds per cubic yard of the concrete load mixture; (iii) a polysaccharide biopolymer selected from the group consisting of welan, diutan, xanthan, guar gum, or mixture thereof, the biopolymer being present in the amount of 0.0003 to 0.003 per hundred pounds of ...

Подробнее
Номер записи: 67
10-03-2022 дата публикации

MULTIFUNCTIONAL CEMENT HYDRATION HEAT CONTROL MATERIAL AND MANUFACTURING METHOD THEREFOR

Номер: US20220073428A1
Автор: CHU Yang, Li Hua, Li Lei, LIU Jiaping, Tian Qian, Wang Rui, WANG Wenbin, Wang Yujiang, Yao Ting
Принадлежит:

Disclosed are a multifunctional cement hydration heat control material and a manufacturing method therefor. The cement hydration heat control material in is a comb polymer having three side chain structures, the three side chain structures are respectively a carboxyl group, a sugar alcohol group, and a polyether structure, and the main chain of the polymer is a carbon chain structure formed by free-radical polymerization of a double bond in a double bond compound monomer. The multifunctional cement hydration heat control material can achieve integration of cement hydration heat control performance, water reduction performance, and shrinkage reduction performance in a same molecule, can achieve control focusing on a performance by means of structural adjustment, does not need multi-component compounding during use, and is more convenient. The control material is non-toxic and water-soluble, can be made to have an appropriate concentration, and is convenient to use. 1. A multifunctional material for controlling cement hydration heat , wherein the material for controlling cement hydration heat is a comb-shaped polymer with three kinds of side chain structures , and the three kinds of side chain structures are carboxyl groups , alditol groups , polyalkylene glycols , respectively; and a backbone of the polymer is a carbon chain structure formed through free radical polymerization of double bonds in double-bond compound monomers.2. The multifunctional material for controlling cement hydration heat as claimed in claim 1 , wherein the multifunctional material for controlling cement hydration heat is prepared by free radical polymerization of monomers A claim 1 , B claim 1 , and C; the monomer A is a (methyl) acrylic acid (acrylate) monomer claim 1 , the monomer B is a double-bond compound with one alditol group claim 1 , and the monomer C is unsaturated polyether; and a weight-average molecular weight of the material for controlling cement hydration heat ranges from 10000 ...

Подробнее
Номер записи: 68
21-02-2019 дата публикации

Composition and Methods for Providing Coatings; Materials; Application Techniques; and, Resulting Coated Substrates

Номер: US20190054483A1
Автор: DeZurik Ted Edward, Wickert Frank
Принадлежит:

Techniques and compositions for applying films to a variety of substrates, from water-borne coating compositions, are provided. The techniques involve providing desiccant and applying the desiccant with water-borne film-forming composition, in application to a substrate. The desiccant composition provides for take up of free water in of the film-forming composition, without total reliance on ambient conditions, to advantage. Compositions, methods, techniques and resulting constructions are described. The techniques can be applied in wet thick film applications, but are not limited to such applications. 1. A method of forming a film on a substrate; the method including a step of: (i) water-borne film forming composition; and,', '(ii) desiccant that is at least partially active, in an amount adequate to at least partially take up free water in the wet, water-borne, film;', '(iii) the step of applying comprises mixing, during application, two component streams: a first comprising the water-borne film forming composition; and, a second comprising the desiccant., '(a) applying, by spray coating, a wet, water-borne, film to the substrate; the wet film comprising2. A method at forming a film on a substrate; the method comprising: (i) water;', '(ii) water-borne film former;', '(iii) non-aqueous carrier selected from soluble and water miscible materials; and,', '(iv) desiccant that is at least partially active, in an amount effective to at least partially take up free water in the film, once applied to the substrate., '(a) applying to the substrate, a coating composition including3. A method according to wherein:(a) the non-aqueous carrier comprises: texanol, glycol ether(s); n-methyl pyrollidone; and, mixtures thereof.4. A system for forming a film on a substrate claim 2 , the system comprising:(a) a first component comprising a water-borne film forming composition;(b) a second component comprising a desiccant that is at least partially active, in an amount adequate to at ...

Подробнее
Номер записи: 69
20-02-2020 дата публикации

Metal oxides and/or hydrates thereof for stabilizing an aqueous preparation against microbial growth

Номер: US20200054019A1
Автор: Anita Zumsteg, Joachim Glaubitz, Simon Urwyler
Принадлежит: Omya International AG

A process is described for stabilizing an aqueous preparation against microbial growth. Also described, is the aqueous preparation stabilized against microbial growth as well as the use of a source of at least one metal oxide and/or its hydrated form for reducing the amount of an antimicrobial agent against at least one strain of bacteria and/or at least one strain of yeast and/or at least one strain of mold in an aqueous preparation. The use of a composition including at least one antimicrobial agent and a source of at least one metal oxide and/or its hydrated form as an antimicrobial composition in an aqueous preparation, is also described. In addition, the use of magnesium oxide, magnesium hydroxide, calcium oxide, calcium hydroxide, half burnt dolomite, burnt dolomite, beryllium oxide, beryllium hydroxide, strontium oxide, strontium hydroxide, barium oxide, barium hydroxide, and mixtures thereof for increasing the pH of an aqueous preparation to a pH of above 8 and the use of an aqueous preparation stabilized against microbial growth in paper, plastics, polymer compositions, paint, coatings, concrete and/or agriculture applications are described.

Подробнее
Номер записи: 70
04-03-2021 дата публикации

HIGH-STRENGTH CONCRETE-LIKE FLUOROGYPSUM-BASED BLENDS AND PRODUCTION METHOD

Номер: US20210061713A1
Автор: Barbato Michele, Bigdeli Yasser, Gutierrez-Wing Maria Teresa, Lofton Charles Davis
Принадлежит: Board of Supervisors of Louisiana State University and Agricultural and Mechanical College

High-strength concrete-like FG blends and methods for producing them are described. The blend includes FG, hydraulic cement, additional alkali material, and pozzolanic material. The blend further includes an admixture used in the formulation of concrete. The blend further includes an aggregate. The aggregate is a coarse aggregate or a fine aggregate. 1. A pre-cure composition , comprising:fluorogypsum (FG),circulating fluidized bed combustion ash (CFBCA),a pozzolanic material, andhydraulic cement.2. The pre-cure composition of claim 1 , further comprising water.3. The pre-cure composition of claim 2 , wherein the water is present at a water of dry material ratio of less than about 1/3.4. The pre-cure composition of claim 1 , wherein the FG is in slurry form.5. The pre-cure composition of claim 4 , wherein the slurry FG is wet or dry.6. The pre-cure composition of claim 1 , further comprising an additional alkali material.7. The pre-cure composition of claim 6 , wherein the additional alkali material is selected from the group consisting of lime claim 6 , a coal combustion product claim 6 , and combinations thereof.8. The pre-cure composition of claim 1 , having a pH of less than about 7.9. The pre-cure composition of claim 1 , wherein the pozzolanic material is selected from the group consisting of a solid fuel combustion product claim 1 , a coal combustion product claim 1 , fly ash claim 1 , class C fly ash claim 1 , class F fly ash claim 1 , bottom ash claim 1 , flue-gas desulfurization materials claim 1 , boiler slag claim 1 , incinerator bottom ash claim 1 , a biomass combustion product claim 1 , bagasse ash claim 1 , rice hull ash claim 1 , wood ash claim 1 , biomass pellets ash claim 1 , natural pozzolan claim 1 , volcanic ash claim 1 , an industrial amorphous silica product claim 1 , micro-silica claim 1 , silica fumes claim 1 , and combinations thereof.10. The pre-cure composition of claim 1 , further comprising an admixture used in the formulation of ...

Подробнее
Номер записи: 71
28-02-2019 дата публикации

Polymer fibers for concrete reinforcement

Номер: US20190062210A1
Автор: Jevan Furmanski
Принадлежит: ExxonMobil Research and Engineering Co

Provided are cementitious mixtures and processes for reinforcing a cementitious matrix. In one form of the process for reinforcing a cementitious matrix includes the steps of mixing a mineral cement and one or more populations of synthetic copolymer microfibers including about 1 mol. % to about 25 mol. % and from about 75 mol. % to about 99.5 mol. % of propylene monomeric units.

Подробнее
Номер записи: 72
17-03-2022 дата публикации

SUSTAINABLE CALCIUM HYDROXIDE PRODUCTION FOR GREEN CEMENT

Номер: US20220081311A1
Автор: Anex Robert Phillip, Ragipani Raghavendra, Root Thatcher Wiley, Wang Bu
Принадлежит:

A method of making a composition of matter comprising calcium hydroxide. The method includes the steps of contacting a calcium-containing molecule with an aqueous solution of a water-soluble salt having ammonium cation and a counter-anion, under conditions effective to yield a compound containing calcium and the counter-anion; and reacting the compound comprising calcium and the counter-anion with ammonia and water under conditions to yield calcium hydroxide. 1. A method of making a composition of matter comprising calcium hydroxide , the method comprising:(a) contacting a material comprising calcium-containing molecules with an aqueous solution comprising a water-soluble salt comprising ammonium cation and a counter-anion, for a time, and at a temperature, pH, and pressure effective to yield a compound comprising calcium and the counter-anion; and(b) reacting at least a portion of the compound comprising calcium and the counter-anion with ammonia and water for a time, and at a temperature, pH, and pressure effective to yield calcium hydroxide.2. The method of claim 1 , wherein the water-soluble salt comprising ammonium cation and a counter-anion is selected from the group consisting of ammonium halide claim 1 , ammonium acetate claim 1 , ammonium phosphate claim 1 , ammonium oxalate claim 1 , and ammonium lactate.3. The method of claim 1 , wherein the water-soluble salt comprising ammonium cation and a counter-anion is ammonium chloride or ammonium acetate.4. The method of claim 1 , wherein step (b) yields calcium hydroxide and ammonium halide and further comprising:(c) recycling at least a portion of the ammonium halide formed in step (b) and using it as the water-soluble salt comprising ammonium cation and a counter-anion.5. A method of making a composition of matter comprising calcium hydroxide claim 1 , the method comprising:(a) contacting a material comprising calcium-containing molecules with an aqueous solution comprising a water-soluble salt comprising ...

Подробнее
Номер записи: 73
17-03-2022 дата публикации

CEMENT MODIFIER COMPOSITIONS

Номер: US20220081362A1
Автор: Meng Jing, Menz Sonja, Neubauer Joerg, PERELLO Margarita, Yin Ligeng
Принадлежит:

Described herein are emulsion polymers, spray dried powders made with said emulsion polymers, and cementitious compositions made with said emulsion polymers or said spray dried powders. Emulsion polymers described herein comprise a shell portion comprising an alkali soluble resin (ASR), a core portion formed from polymerized units of at least one hydrophobic ethylenically unsaturated monomer, wherein no crosslinker is present when the shell portion and core portion are combined, and a nonionic water-soluble polymer. 1. An emulsion polymer , comprising:a shell portion comprising an alkali soluble resin (ASR);a core portion formed from polymerized units of at least one hydrophobic ethylenically unsaturated monomer, wherein no crosslinker is present when the shell portion and core portion are combined; anda nonionic water-soluble polymer.2. The emulsion polymer of claim 1 , wherein the ASR is formed from polymerized units of at least one add-functional monomer claim 1 , anhydride-functional monomer claim 1 , salts thereof or a combination thereof.3. The emulsion polymer of claim 1 , wherein the ASR is formed from polymerized units of at least one add-functional monomer comprising Methyl methacrylate (MMA) and Methacrylic add (MAA).4. The emulsion polymer of claim 1 , wherein the ASR is formed from polymerized units of at least one add-functional monomer at a level of from about 5 percent to about 50 percent by mass of the total mass of ASR.5. The emulsion polymer of claim 1 , wherein the ASR is formed from polymerized units of at least one add-functional monomer at a level of from about 10 percent to about 30 percent by mass of the total mass of ASR.6. The emulsion polymer of claim 1 , wherein the glass transition temperature (Tg) of the ASR in the acid form is about 70° C. to about 140° C.7. The emulsion polymer of claim 1 , wherein the shell portion has a weight average molecular weight of 50 claim 1 ,000 or less.8. The emulsion polymer of claim 1 , wherein the at ...

Подробнее
Номер записи: 74
17-03-2022 дата публикации

ADDITIVE AND ADMIXTURE FOR CEMENTITIOUS COMPOSITIONS, CEMENTITIOUS COMPOSITIONS, CEMENTITIOUS STRUCTURES AND METHODS OF MAKING THE SAME

Номер: US20220081364A1
Автор: ATIENZA Jacki J., Ko Suz-Chung, Myers Michael, ONG Shaode, Seiler Paul, SPROUTS Sandra, VICKERS Thomas
Принадлежит:

An additive for cementitious compositions for mitigating alkali-silica reaction (ASR) includes particles of alkali-silica reaction mitigating that are against agglomeration. The additive may be provided in an aqueous liquid admixture composition for cementitious compositions that includes the alkali-silica reaction mitigating additive, a thickening agent and water. The admixture utilizes a pH sensitive thickener in combination with pH adjustment to stabilize the particles of alkali-silica reaction mitigating additive against agglomeration. The admixture composition is used to mitigate the alkali-silica reactions in a cementitious composition. Methods of making the admixture, cementitious compositions and hardened cementitious structures are also disclosed. 1. An aqueous admixture composition for cementitious compositions comprising:particles of an alkali-silica reaction mitigating additive;a thickener; andwater, andwherein said particles of alkali-silica reaction mitigating additive are stabilized against agglomeration by said thickener.2. (canceled)3. The admixture composition of claim 1 , wherein said alkali-silica reaction mitigating additive comprises zirconia silica fume and wherein said zirconia silica fume comprises greater than about 80 weight percent silica claim 1 , greater than 0 to about 15 weight percent zirconia and 0 to about 5 weight percent impurities.4. The admixture composition of claim 3 , wherein said zirconia silica fume comprises greater than about 85 weight percent silica claim 3 , greater than 0 to about 10 weight percent zirconia and 0 to about 5 weight percent impurities.5. The admixture composition of claim 4 , wherein said zirconia silica fume comprises greater than about 85 weight percent silica claim 4 , greater than 5 to about 10 weight percent zirconia and 0 to about 5 weight percent impurities.6. The admixture composition of claim 5 , wherein said zirconia silica fume comprises greater than about 90 weight percent silica claim 5 , ...

Подробнее
Номер записи: 75
28-02-2019 дата публикации

METHOD FOR PROVIDING ZONAL ISOLATION IN AN UNDERGROUND WELLBORE

Номер: US20190062616A1
Автор: CORNELISSEN Erik Kerst, MEURS Jan Hermen Hendrik, OVERBEEK Josje Malu, RUCKERT Frank, VAN EIJDEN Gerbrand Jozef Maria
Принадлежит:

Slugs of a cement slurry and of a resin composition are injected into an underground wellbore. The resin composition contains at least a curable resin, a filler, a swelling agent, a curing initiator, and a crosslinking retarding agent. The curing initiator activates the curing in response to temperature. The crosslinking retarding agent delays curing of the resin, to permit pumping the composition into the wellbore. After injection, the cement slurry and resin composition are allowed to cure, to create a stacked cement and cured resin column that provides a zonal isolation seal within the wellbore. The resin composition may suitably be an elastomer-forming composition. The cured resin may be swellable by allowing contact with a wellbore fluid. 1. A method for providing zonal isolation in an underground wellbore , the method comprising creating a stacked cement and cured resin column that provides a zonal isolation seal within the wellbore employing steps of:injecting into the wellbore at least one slug of a cement slurry;in addition to said injecting into the wellbore the at least one slug of a cement slurry, injecting into the wellbore at least one additional slug of a resin composition comprising a curable resin, a filler, a swelling agent, a curing initiator and a crosslinking retarding agent, which delays curing of the resin to permit pumping the composition into the wellbore;creating a stacked cement and resin column by forming alternating layers of the at least one slug of the cement slurry and the at least one additional slug of the resin composition within the wellbore; andallowing the cement slurry and resin composition in the stacked cement and resin column to cure.2. The method of claim 1 , wherein said cured resin is swellable upon contact with a wellbore fluid.3. The method of claim 2 , wherein the wellbore fluid is a hydrocarbon oil claim 2 , or produced water claim 2 , or water from the gas phase claim 2 , or any combination thereof.4. The method of ...

Подробнее
Номер записи: 76
17-03-2022 дата публикации

FLUID LOSS ADDITIVE FOR LOW-PORTLAND OR NON-PORTLAND CEMENTS

Номер: US20220081605A1
Автор: JR. William Cecil, Lewis Samuel, Pearl
Принадлежит: Halliburton Energy Services, Inc.

A cement composition can include: water; cement, wherein less than 75 w/w % of the total amount of the cement is Portland cement; and a fluid loss additive, wherein the fluid loss additive comprises a polymer network having at least one branching point formed with a monomer and a cross-linking agent that comprises at least three active functional groups. The cement can also be a non-Portland cement. The monomer can be a vinyl ester-based monomer that is polymerized with the cross-linking agent to form the polymer network. The cement composition can be used in an oil and gas operation. 1. A method of cementing in a subterranean formation comprising: (i) cement, wherein less than 75 w/w % of the total amount of cement is Portland cement;', '(ii) water; and', '(iii) a fluid loss additive, wherein the fluid loss additive comprises a polymer network having at least one branching point formed with a monomer and a cross-linking agent that comprises at least three active functional groups; and, 'introducing a cement composition into the subterranean formation, the cement composition comprisingallowing the cement composition to set.2. The method according to claim 1 , wherein the water is selected from the group consisting of freshwater claim 1 , brackish water claim 1 , and saltwater claim 1 , in any combination thereof in any proportion.3. The method according to claim 1 , wherein the cement is selected from the group consisting of Portland cements claim 1 , gypsum cements claim 1 , high alumina content cements claim 1 , slag cements claim 1 , high magnesia content cements claim 1 , pozzolan claim 1 , fly ash claim 1 , lime claim 1 , slaked lime claim 1 , sorels cements claim 1 , and combinations thereof.4. The method according to claim 1 , wherein less than 30 w/w % of the total amount of cement is Portland cement.5. The method according to claim 1 , wherein the cement does not include Portland cement.6. The method according to claim 1 , wherein the monomer is a vinyl ...

Подробнее
Номер записи: 77
27-02-2020 дата публикации

Method for Controlling Clay Impurities in Construction Aggregates and Cementitious Compositions

Номер: US20200062649A1
Автор: Arthur Kyriazis, Lawrence L. Kuo, Lukasz DEBNY, Shuqiang Zhang
Принадлежит: GCP Applied Technologies Inc

The present invention provides a method for treating clay-bearing aggregates, particularly those used for construction purposes, which involve introducing to clay-bearing aggregates an ion-exchanged polycondensate of dialkylamine and epichlorohydrin having anionic groups comprising both acetate and chloride ionic groups, wherein the acetate is present in an amount of 51-99 percent, and more preferably in the amount of 60-95 percent, based on molar concentration of the anionic groups, whereby chloride ionic groups are minimally present.

Подробнее
Номер записи: 78
08-03-2018 дата публикации

COATED-FINE-AGGREGATE, CONCRETE COMPOSITION AND METHOD

Номер: US20180065890A1
Автор: Hendrickson Calder
Принадлежит:

A concrete composition and method include a portion of fine aggregate bearing a coating of a polymer, which may be a continuous coating layer or a layer of powdered, discrete particles embedded in a binder. The polymeric coating may be a super absorbent polymer (insoluble in water, but absorbing water), or another polymer such as the acrylamides, co-polymers thereof, polyacrylamides, or the like (soluble in water). The coating absorbs water, but particles are too small to form significant voids. Water is absorbed into the concrete mix in far greater proportions (e.g. w/c ratio over 0.5) improving workability, doubling workability time, and improving ultimate compressive stress (strength). 1. A composition comprising:coarse aggregate comprising rocks of a comparatively larger size;fine aggregate comprising granules of sand having an average maximum dimension substantially smaller than the coarse aggregate;cement; andpolymer coated aggregate comprising a portion of the fine aggregate having the granules individually powder coated with a powder comprising a water-absorbing polymer.2. The composition of claim 1 , wherein the polymer coated aggregate constitutes less than about one tenth of the fine aggregate.3. The composition of claim 2 , wherein the powder is bound by a binder to the granules individually claim 2 , as a substrate.4. The composition of claim 1 , wherein the polymer coated aggregate further comprises a shell.5. The composition of claim 1 , wherein the powder is comprised of at least two polymers selected from an acrylamide claim 1 , an acrylamide co-polymer claim 1 , a polyacrylamide (PAM) claim 1 , and a super absorbent polymer (SAP).6. The composition of further comprising a binder binding the contact portions of the powder to the substrate.7. The composition of claim 1 , constituted from parts proportioned by weight claim 1 , wherein:the cement constitutes an amount of from about one and a half to about two and a half parts;the fine aggregate ...

Подробнее
Номер записи: 79
08-03-2018 дата публикации

CARBON DIOXIDE-RESISTANT PORTLAND BASED CEMENT COMPOSITION

Номер: US20180065891A1
Автор: Kulakofsky David, Santra Ashok K.
Принадлежит:

The invention provides a carbon dioxide-resistant hydraulic cement composition. The inventive composition comprises a Portland cement, Class C fly ash and water. The Class C fly ash is present in the composition in an amount in the range of from about 5% to less than about 30% by weight based on the total weight of the cementitious components in the composition. In another aspect, the invention provides a method of cementing in a carbon dioxide environment. In yet another aspect, the invention provides a method of enhancing the recovery of a hydrocarbon fluid from a subterranean formation. 1. A carbon dioxide-resistant hydraulic cement composition , comprising:a Portland cement;Class C fly ash present in an amount in the range of from about 5% to less than about 30% by weight based on the total weight of the cementitious components in said composition; andwater present in an amount sufficient to form a slurry.2. The carbon dioxide-resistant hydraulic cement composition of claim 1 , wherein said Portland cement is selected from API Class G type Portland cement and API Class H type Portland cement.3. The carbon dioxide-resistant hydraulic cement composition of claim 2 , wherein said Portland cement is API Class H type Portland cement.4. The carbon dioxide-resistant hydraulic cement composition of claim 1 , further comprising a fluid loss additive.5. The carbon dioxide-resistant hydraulic cement composition of claim 1 , further comprising a defoamer.6. The carbon dioxide-resistant hydraulic cement composition of claim 1 , wherein said Class C fly ash is present in said composition in an amount in the range of from about 15% to about 28% by weight based on the total weight of the cementitious components in said composition.7. The carbon dioxide-resistant hydraulic cement composition of claim 6 , wherein said Class C fly ash is present in said composition in an amount of about 25% by weight based on the total weight of the cementitious components in said composition.8. ...

Подробнее
Номер записи: 80
15-03-2018 дата публикации

SILICA ENCAPSULATION OF UREOLYTIC BACTERIA FOR SELF-HEALING OF CEMENT-BASED COMPOSITES

Номер: US20180072632A1
Автор: Huang Wenyu, LOMBOY Gilson, PEI Yuchen, QI Zhiyuan, WANG Kejin
Принадлежит:

One aspect of the present invention is directed to a method of preparing encapsulated ureolytic cells. This method includes blending freeze dried ureolytic cells and an aqueous solution to form a base mixture; mixing the base mixture with a silicate-forming compound to form a blend comprising silica encapsulated ureolytic cells; and freeze drying the silica encapsulated ureolytic cells. The present invention also relates to a method of producing a self-healing concrete. This method comprises providing silica encapsulated freeze-dried ureolytic cells; mixing the silica encapsulated freeze-dried ureolytic cells with cement to form a mixture; and blending the mixture with a calcium salt and a urea solution to form a concrete mixture. Also disclosed are silica encapsulated ureolytic cells, a method of making a concrete form, and a cured concrete product. 1. A method of preparing encapsulated ureolytic cells , said method comprising:blending freeze dried ureolytic cells and an aqueous solution to form a base mixture;mixing the base mixture with a silicate-forming compound to form a blend comprising silica encapsulated ureolytic cells; andfreeze drying the silica encapsulated ureolytic cells.2. The method of claim 1 , wherein the solution contains a base precursor.3. The method of claim 2 , wherein the base precursor is urea.4Sporosacina pateurii, Sporsacina ureae, Bacillus sphaericus, Bacillus pseudofirmus, Bacillus cohniiBacillus alkalinitrilicus.. The method of claim 1 , wherein the ureolytic cells are selected from the group consisting of claim 1 , and5. The method of claim 1 , wherein the silicate-forming compound is an organosilicate compound.6. The method of claim 5 , wherein the organosilicate compound is selected from the group consisting of tetraethyl orthosilicate claim 5 , tetramethyl orthosilicate claim 5 , tetraprophy orthosilicate claim 5 , and tetrabutyl orthosilicate.7. The method of further comprising:washing the mixture andrecovering the encapsulated ...

Подробнее
Номер записи: 81
07-03-2019 дата публикации

A PROCESS FOR MODIFYING POLYMER PARTICLES OF AN AQUEOUS POLYMER DISPERSION, AN AQUEOUS POLYMER DISPERSION OBTAINABLE BY SAID PROCESS, A REDISPERSIBLE POLYMER POWDER, AND A COMPOSITION COMPRISING THE REDISPERSIBLE POLYMER POWDER

Номер: US20190071545A1
Автор: Albrecht Gerhard, DIETZSCH Michael, GAEDT Torben, GRASSL Harald, LOESCHER Iris, Nicoleau Luc, PUTZIEN Sophie
Принадлежит: BASF SE

The invention relates to a process for modifying polymer particles of an aqueous polymer dispersion in which positively or negatively charged polymer particles are provided with an inorganic salt shell. The inorganic shell leads to an improved drying ability and storage stability of the latex and improves the storage stability of the resulting polymer powder. The obtained polymer powder exhibits an improved viscosity and faster skin-forming time in the final application and is therefore particularly useful in a building material composition. 1: A process for modifying polymer particles of an aqueous polymer dispersion , the process comprising:a) providing an aqueous polymer dispersion comprising positively or negatively charged polymer particles;b) adding at least one first water-soluble salt of a multivalent metal selected from the group consisting of magnesium, calcium, barium, aluminum, zirconium, iron and zinc, wherein the first salt essentially does not comprise an anion as defined in c);c) adding at least one second water-soluble salt comprising an anion selected from the group consisting of aluminate, silicate, borate, sulfate, and carbonate, wherein the second salt essentially does not comprise a cation as defined in b);wherein the sequence of a), b) and c) is in the order a), b), c) in the case of negatively charged polymer particles, or a), c), b) in the case of positively charged polymer particles.2: The process of claim 1 , wherein the polymer particles in a) have a particle size of ≤2.0 μm claim 1 , as determined by dynamic light scattering.3: The process of claim 1 , further comprisingd) adjusting the pH-value of the obtained aqueous dispersion to a value within a range of 9 to 13.4: The process of claim 1 , wherein a surface charge is in the range of from −300 to −30 μmol/g polymer or from 30 to 300 μmol/g polymer.5: The process of claim 1 , wherein the cation of b) is calcium and the anion of c) is aluminate or silicate.6: The process of claim 3 , ...

Подробнее
Номер записи: 82
16-03-2017 дата публикации

Cement dispersant, method for preparing same, and mortar-concrete admixture using same

Номер: US20170073268A1
Автор: Chanyong YU, Jaeik JEON, Kyeong Hwan Kim, Oil KWEON, Youngju JEON
Принадлежит: San Nopco Korea Ltd

The present invention relates to a polycarbonic acid-based cement dispersant, a method for preparing the same, and a mortar-concrete admixture using the polycarbonic acid-based cement dispersant. The cement dispersant of the present invention and the mortar-concrete admixture using the cement dispersant are applied to a cement composition such as a cement paste, mortar, concrete, etc., enhance a dispersion and retention force between cement molecules, have excellent fluidity due to the suppression of slump loss, and have an effect of improving workability, such as shortening a concrete mixing time by 20% or more. Further, the mortar-concrete admixture using the cement dispersant of the present invention has an effect of providing a very good concrete condition and an appropriate compressive strength over time.

Подробнее
Номер записи: 83
24-03-2022 дата публикации

FLEXIBLE COMPOSITE

Номер: US20220089934A1
Автор: BREWIN Peter, Evans Christopher, Kujawski Marcin, Peake William
Принадлежит: Concrete Canvas Technology Ltd.

An expandable porous framework, the framework containing a dry cementitious powder fill that when exposed to an aqueous media, will expand against the constraint of the framework and set to form a solid, hard and coherent material, the formwork being porous to liquids but substantially impermeable to the powder fill. 1. An expandable porous formwork , said formwork containing a dry cementitious powder fill that , when exposed to an aqueous media , will expand against the constraint of the formwork and set to form a solid , hard and coherent material , the formwork being porous to liquids but substantially impermeable to the powder fill.2125. A formwork as claimed in claim 1 , in which the cementitious powder fill expands to at least % of its initial volume on exposure to an aqueous media.3. A formwork as claimed in claim 2 , in which the cementitious powder fill expands to between 125 and 650% of its initial volume on exposure to an aqueous media claim 2 , or to between 125 and 450% of its initial volume claim 2 , or to between 125 and 300% of its initial volume claim 2 , or to between 130 and 170% of its initial volume.4. A formwork as claimed in any preceding claim claim 2 , in which the formwork is arranged to exert a confinement pressure on the powder fill such that claim 2 , as it expands claim 2 , it exerts an increasing confinement pressure on the cementitious powder with an increasing degree of expansion.5. A formwork as claimed in any preceding claim claim 2 , in which the formwork and the expanded and set powder fill form a seal claim 2 , once set.6. A formwork as claimed in any preceding claim claim 2 , in which the formwork is toroidal in shape claim 2 , including with a rectangular or square cross section (with radiused corners).7. A formwork as claimed in claim 6 , in which the formwork is engineered to be much stiffer in the toroidal direction than the poloidal direction.8. A formwork as claimed in claim 7 , in which the formwork has been formed by ...

Подробнее
Номер записи: 84
16-03-2017 дата публикации

BLOCK COPOLYMER

Номер: US20170073449A1
Автор: Frunz Lukas, WEIDMANN Jürg, Zimmermann Jörg
Принадлежит: SIKA TECHNOLOGY AG

A block copolymer, in particular for use as a dispersant for mineral binder compositions, including at least one first block A and at least one second block B, wherein the first block A has a monomer unit M1 and the second block B has a monomer unit M2. To this end a proportion of monomer units M2 which is in any case present in the first block A is less than 25 mol %, in particular less than or equal to 10 mol %, based on all the monomer units M1 in the first block A and a proportion of monomer units M1 which is in any case present in the second block B is less than 25 mol %, in particular less than or equal to 10 mol %, based on all the monomer units M2 in the second block B. 2. The block copolymer as claimed in claim 1 , wherein at least one first block A comprises 5-70 monomer units M1 and/or in that the at least one second block B comprises 5-70 monomer units M2.3. The block copolymer as claimed in claim 1 , wherein the first block A comprises 25-35 monomer units M1 and/or in that the at least one second block B comprises 10-20 monomer units M2.4. The block copolymer as claimed in claim 1 , wherein a molar ratio of the monomer units M1 to the monomer units M2 is situated in the range of 0.5-6.5. The block copolymer as claimed in claim 1 , wherein the first block A claim 1 , based on all the monomer units in the first block A claim 1 , consists to an extent of at least 20 mol % of monomer units M1 of the formula I and/or in that the second block B claim 1 , based on all the monomer units in the second block B claim 1 , consists to an extent of at least 20 mol % of monomer units M2 of the formula II.7. The block copolymer as claimed in claim 1 , wherein R=COOM; Rand R claim 1 , independently of one another claim 1 , are H claim 1 , —CHor mixtures thereof; Rand R claim 1 , independently of one another claim 1 , are H or —CH; Rand R claim 1 , independently of one another claim 1 , are H or —COOM; - and X for at least 75 mol % of all monomer units M2 claim 1 , is —O ...

Подробнее
Номер записи: 85
16-03-2017 дата публикации

Diutan as a Rheological Modifier in Sorel Cements

Номер: US20170073567A1
Автор: Eoff Larry Steven, III Antonio, Pascarella Natalie Lynn, Recio, Reddy B. Raghava
Принадлежит: Halliburton Energy Services, Inc.

Systems and methods for modifying rheology of a cement slurry are described. Systems and methods may include a composition including diutan and a Sorel cement. 1. A composition for modifying rheology of a cement slurry , the composition comprising:a non-hydraulic cement; anddiutan.2. The composition of claim 1 , wherein the non-hydraulic cement is a magnesium oxychloride-based Sorel cement.3. The composition of claim 2 , wherein the Sorel cement comprises magnesium oxide and magnesium chloride in a ratio of approximately 2:1 to approximately 1:2.4. The composition of claim 2 , further comprising a set retarder claim 2 , a water-enhancing material claim 2 , and water.5. The composition of claim 1 , wherein the weight ratio of diutan to Sorel cement is approximately 1:300 to approximately 1:400.6. The composition of claim 1 , wherein the composition has a thixotropic index value greater than 2.7. The composition of claim 1 , wherein the composition has a yield point greater than 25 lbs/100 ft.8. The composition of claim 1 , wherein the composition has a thixotropic index value greater than 2 and a yield point greater than 25 lbs/100 ft.9. The composition of claim 8 , wherein the composition further comprises water claim 8 , and wherein the ratio of diutan to water is approximately 1 g:100 mL to approximately 1 g:125 mL.10. The composition of claim 9 , wherein the ratio of water to diutan is approximately 1 g:117 mL.11. A method of servicing a wellbore claim 9 , the method comprising: 'placing the cement slurry composition in a subterranean formation.', 'providing a cement slurry composition comprising a Sorel cement and diutan; and'}12. The method of claim 11 , further comprising allowing the cement composition to set in the subterranean formation.13. The method of claim 11 , wherein the Sorel cement is a magnesium oxychloride-based Sorel cement.14. The method of claim 13 , wherein the Sorel cement comprises magnesium oxide and magnesium chloride in a ratio of ...

Подробнее
Номер записи: 86
05-03-2020 дата публикации

CONSTRUCTION MATERIALS, COMPOSITIONS AND METHODS OF MAKING SAME

Номер: US20200071230A1
Автор: Monte Salvatore J.
Принадлежит: S&E INNOVATIVE TECHNOLOGIES LLC

A composition comprising at least one binder coated with at least one metallate additive according to formula 1: (RO)-M-(O˜X˜R′˜Y)(formula 1), wherein M is one of titanium and zirconium. The composition is particularly useful in producing treated binders and construction materials, wherein the resulting treated binders and construction materials have advantageous properties, such as increased strength. Also disclosed are methods of preparing the inventive composition, treated binders and construction materials.

Подробнее
Номер записи: 87
05-03-2020 дата публикации

WELL CEMENTATION WORKING SOLUTION PREPARED FROM RED MUD, SLAG AND WASTE DRILLING FLUIDS

Номер: US20200071594A1
Автор: CHENG Xiaowei, GAO Xianshu, GUO Xiaoyang, JIN Jianzhou, LI Zaoyuan, LIU Kaiqiang, Long Dan, MEI Kaiyuan, QIN Dan, WEN Zhaijun, YU Yongjin, ZHANG Chunmei, ZHANG Gaoyin, ZHANG Xingguo
Принадлежит:

A well cementation working solution prepared from red mud, slag and waste drilling fluids. The working solution is prepared from the following components in parts by weight: 100 parts of waste drilling fluids, 50-100 parts of slag, 5-50 parts of red mud, 4-7 parts of a suspension stabilizer, 1-7 parts of an activating aid, 0.5-5 parts of an anti-pollution agent and 0.4-3.5 parts of a diluent. The waste drilling fluids are waste waterborne drilling fluids. The slag is blast furnace slag or vanadium-titanium slag. The suspension stabilizer is sodium bentonite, carboxymethyl cellulose or a mixture of sodium bentonite and carboxymethyl cellulose. The activating aid is sodium metasilicate nonahydrate, sodium carbonate or a mixture of sodium metasilicate nonahydrate and sodium carbonate. The anti-pollution agent is sodium salicylate, potassium citrate or a mixture of sodium salicylate and potassium citrate. The diluent is sodium lignin sulfonate. 1. A well cementation working solution prepared from a red mud , a slag and waste drilling fluids , comprising the following components in parts by weight:100 parts of the waste drilling fluids;50-100 parts of the slag;5-50 parts of the red mud;4-7 parts of a suspension stabilizer;1-7 parts of an activating aid;0.5-5 parts of an anti-pollution agent; and0.4-3.5 parts of a diluent.2. The well cementation working solution prepared from the red mud claim 1 , the slag and the waste drilling fluids according to claim 1 , wherein the waste drilling fluids are waste waterborne drilling fluids claim 1 , and the waste waterborne drilling fluids comprise a waterborne drilling fluid suitable for high temperature and high pressure drilling claim 1 , wherein claim 1 , the waterborne drilling fluid has a density ranging from 1.10 g/cmto 2.05 g/cm.3. The well cementation working solution prepared from the red mud claim 1 , the slag and the waste drilling fluids according to claim 1 , wherein the slag is a blast furnace slag or a vanadium- ...

Подробнее
Номер записи: 88
14-03-2019 дата публикации

BIOCIDAL GLAZING COMPOSITION, METHOD, AND ARTICLE

Номер: US20190075800A1
Автор: Campbell, JR. Alvin Lamar
Принадлежит:

A biocidal additive package comprises at least one metal or metal containing compound selected from the group consisting of CuO, Cu(OH), Cu, CuO, CuO, and a combination thereof, and at least one non-copper metal or non-copper containing metal compound. Non-limiting examples of non-copper metal and non-copper containing metal compounds are Ag, AgO, Bi, BiO, Zn, ZnO, or a combination thereof. A biocidal ceramic glaze layer and an article comprising a biocidal ceramic glaze layer are provided. Also provided is a method of affixing a biocidal ceramic glaze to a substrate. 1. A biocidal additive package comprising:{'sub': 2', '2', '3', '2', '3, 'at least one metal or metal containing compound selected from the group consisting of CuO, Cu(OH), Cu, CuO, CuO, and a combination thereof, and at least one non-copper metal or non-copper metal containing compound.'}2. The biocidal additive package according to claim 1 , wherein the non-copper metal containing compound is selected from the group consisting of a silver-containing compound claim 1 , a barium-containing compound claim 1 , a bismuth-containing compound claim 1 , a tin-containing compound claim 1 , a titanium-containing compound claim 1 , a zinc-containing compound claim 1 , and a combination thereof.3. The biocidal additive package according to claim 2 , wherein silver-containing compound is selected from the group consisting of AgO claim 2 , AgO claim 2 , AgCO claim 2 , AgNO claim 2 , and a combination thereof.4. The biocidal additive package according to claim 2 , wherein the barium-containing compound is BaCO.5. The biocidal additive package according to claim 2 , wherein the bismuth-containing compound is BiO.6. The biocidal additive package according to claim 2 , wherein the tin-containing compound is SnO.7. The biocidal additive package according to claim 2 , wherein the zinc-containing compound is ZnO.8. The additive package according to claim 1 , wherein the non-copper metal or non-copper metal containing ...

Подробнее
Номер записи: 89
14-03-2019 дата публикации

HIGH STRENGTH CONCRETE-LIKE FLUOROGYPSUM-BASED BLENDS AND PRODUCTION METHODS

Номер: US20190077712A1
Автор: Barbato Michele, Bigdeli Yasser, Gutierrez-Wing Maria Teresa, Lofton Charles Davis
Принадлежит: Board of Supervisors of Louisiana State University and Agricultural and Mechanical College

High-strength concrete-like FG blends and methods for producing them are described. The blend includes FG, hydraulic cement, additional alkali material, and pozzolanic material. The blend further includes an admixture used in the formulation of concrete. The blend further includes an aggregate. The aggregate is a coarse aggregate or a fine aggregate. 2. The pre-cure composition of claim 1 ,wherein the FG is in slurry form.3. The pre-cure composition of claim 2 ,wherein the slurry FG is wet or dry.4. The pre-cure composition offurther comprising an additional alkali material.5. The pre-cure composition of claim 4 ,wherein the additional alkali material is selected from the group consisting of lime, a coal combustion product, circulating fluidized bed combustion ash (CFBCA), and combinations thereof.6. The pre-cure composition of claim 1 ,having a pH of less than about 7.7. The pre-cure composition of claim 1 ,further comprising a pozzolanic material.8. The pre-cure composition of claim 7 ,wherein the pozzolanic material is selected from the group consisting of a solid fuel combustion product, a coal combustion product, fly ash, class C fly ash, class F fly ash, bottom ash, flue-gas desulfurization materials, boiler slag, incinerator bottom ash, a biomass combustion product, bagasse ash, rice hull ash, wood ash, biomass pellets ash, natural pozzolan, volcanic ash, an industrial amorphous silica product, micro-silica, silica fumes, and combinations thereof.9. The pre-cure composition of claim 1 ,further comprising an admixture used in the formulation of concrete.10. The pre-cure composition of claim 9 ,wherein the admixture is selected from the group consisting of a material with latent hydraulic behavior, ground granulated blast furnace slag, a water-reducing agent, entrained air (or another gas), a superplasticizer, a set retarding agent, a set accelerating agent, a shrinkage-reducing agent, and combinations.11. The pre-cure composition of claim 1 ,further comprising ...

Подробнее
Номер записи: 90
14-03-2019 дата публикации

Waterborne coating composition

Номер: US20190077973A1
Автор: Daniel Duc, Debora Ressnig, John Haigh, Loic CHAILLOUX, Xavier Bricout
Принадлежит: Dow Global Technologies LLC

A waterborne coating composition including: an aqueous emulsion polymer having a copolymerized Phosphorous-acid monomer, an aqueous dispersion of cement, and a solid inert filler, each in certain amounts, is provided. A method for providing a coated substrate employing the waterborne coating composition that has been subsequently activated and the coated substrate so formed are also provided.

Подробнее
Номер записи: 91
22-03-2018 дата публикации

Cement Having Cross-Linked Polymers

Номер: US20180079947A1
Автор: Contreras Elizabeth Q.
Принадлежит: Saudi Arabian Oil Company

A composition and method of forming a wellbore cement that includes a cross-linked polyamide. The polyamide is formed by reacting a di-functional amine with an aromatic tri-functional carboxylic acid. The wellbore cement composition is created by blending cement and water with the polyamide and then allowed to cure. Increases in compressive strength, Young's Modulus, and Poisson's Ratio of the cement were realized by adding the polyamide to the cement composition. 1. A cement composition for use in a wellbore comprising:a cement;a calcium silicate in the cement; anda polyaramide condensate compound that is cross-linked and formed from a trifunctional carboxylic acid and a diamine.2. The cement composition of claim 1 , where the diamine is selected from the group consisting of ethylenediamine claim 1 , 1 claim 1 ,3-diaminobenzene claim 1 , 1 claim 1 ,4-diaminobenzene claim 1 , 1 claim 1 ,6-diaminohexane claim 1 , 1 claim 1 ,4-phenylenediamine claim 1 , and combinations.3. The cement composition of claim 2 , where the 1 claim 2 ,6-diaminohexane is mixed with sebacoyl chloride.4. The cement composition of claim 1 , where the trifunctional carboxylic acid comprises 1 claim 1 ,3 claim 1 ,5-benzenetricarboxylic acid chloride.5. The cement composition of claim 1 , where the polyaramide comprises a compound selected from the group consisting of poly(ethylene trimesoylamide) claim 1 , poly-(meta-phenylene trimesoylamide) claim 1 , poly-(para-phenylene trimesoylamide) claim 1 , poly(hexamethylene trimesoylamide) claim 1 , poly(hexamethylene-co-sebacoyl trimesoylamide) claim 1 , poly-(para-phenylene trimesoylamide) claim 1 , and a blend of poly-(meta-phenylene trimesoylamide) and poly(hexamethylene trimesoylamide).6. The cement composition of claim 5 , where the blend of poly-(meta-phenylene trimesoylamide) and poly(hexamethylene trimesoylamide) comprises a 1:1 ratio.7. The cement composition of claim 1 , where the polyaramide condensate comprises about 3% by weight of the ...

Подробнее
Номер записи: 92
22-03-2018 дата публикации

Defoaming Compositions and Processes for Drilling Fluid Applications

Номер: US20180079949A1
Автор: Bava Luciana, Mahmoudkhani Amir, Rocker Jacob, Wilson Robert
Принадлежит:

Compositions and processes for breaking or reducing foam in a drilling fluid, or improving the disposal of a drilling fluid, or reducing or preventing entrained gas in a drilling fluid. The compositions include a defoaming composition comprising hydrophobic silica and an organic acid ester of a polyoxyethylene-polyoxypropylene block copolymer. 1. A process of breaking or reducing foam in a drilling fluid , or improving the disposal of a drilling fluid , or reducing or preventing entrained gas in a drilling fluid , the process comprising:adding a defoaming composition to a drilling fluid, wherein the defoaming composition comprises hydrophobic silica and an organic acid ester of a polyoxyethylene-polyoxypropylene block copolymer.2. The process of claim 1 , wherein the organic acid ester of the polyoxyethylene-polyoxypropylene block copolymer is a condensation reaction product of a polyoxyethylene-polyoxypropylene block copolymer and an organic acid having at least one carboxylic acid group.4. The process of claim 2 , wherein the organic acid is selected from the group consisting of mono-carboxylic acids claim 2 , dicarboxylic acids claim 2 , and multicarboxylic acids.5. The process of claim 1 , wherein the organic acid ester of the polyoxyethylene-polyoxypropylene block copolymer has an average molecular weight of 1000 to 5000 Daltons.6. The process of claim 1 , wherein the acid ester of the polyoxyethylenepolyoxypropylene block copolymer has an acid number less than 15.7. The process of claim 1 , wherein a weight ratio of the hydrophobic silica to the acid ester of the polyoxyethylene-polyoxypropylene block copolymer is between 0.1 to 10 weight percent.8. The process of claim 1 , wherein the hydrophobic silica is hydrophobized silica fume or precipitated silica or a mixture thereof.9. The process of claim 1 , wherein the polyoxyethylene-polyoxypropylene block copolymer is ordered having a polyoxypropylene backbone and polyoxyethylene end groups or a polyoxyethylene ...

Подробнее
Номер записи: 93
23-03-2017 дата публикации

Joint compounds

Номер: US20170081245A1
Автор: Barbara Biasotti, Barbara GATTI, Giampietro Margheritis, Giovanni Floridi, Giuseppe Li Bassi, Roberto Coarezza, Valentina Langella
Принадлежит: LAMBERTI SPA

The present invention relates to ready-to-use drying joint compounds that exhibit improved performance characteristics due to the presence of a hydrophobically modified polygalactomannan.

Подробнее
Номер записи: 94
31-03-2022 дата публикации

Rapid curing mineral binder mixture

Номер: US20220098100A1
Автор: Olaf HETCHE
Принадлежит: VENATOR GERMANY GMBH

A fast-curing mineral binder mixture includes a zirconium(IV)-based accelerator, a cement which includes at least one component selected from the compounds 3CaO*Al 2 O 3 , 12CaO*7Al 2 O 3 , CaO*Al 2 O 3 , CaO*2Al 2 O 3 , CaO*6Al 2 O 3 and 4CaO*3Al 2 O 3 *SO 3 , and 15 to 80 wt % of a sulfate carrier, wherein the wt % is based on a weight of the fast-curing mineral binder mixture. The fast-curing mineral binder mixture can optionally include at least one alkaline component and/or at least one additive.

Подробнее
Номер записи: 95
31-03-2022 дата публикации

STORAGE STABLE CEMENT PASTES

Номер: US20220098106A1
Автор: PERELLO Margarita, Ressnig Debora
Принадлежит:

The present invention relates to substantially water free hydraulic cement pastes which remain shelf stable over extended time periods, for example, 100 days at room temperature. The substantially water free cement pastes comprise a deep eutectic solvent mixture of a polar organic carrier component, such as a hydrogen donor like a polyol, in association with an anhydrous cation containing component, and a hydraulic cement, preferably, an aluminate cement, or sulpho-aluminate cement. A preferred deep eutectic solvent mixture comprises KCOand glycerol in molar ratios of from 1:1 to 1:6. The cement pastes are activated simply by addition of water or aqueous polymers to form thin set compositions. 1. A substantially water free cement paste composition comprising a deep eutectic solvent mixture of a polar organic carrier component , in association with an anhydrous cation containing component , and , further , a hydraulic cement , wherein the deep eutectic solvent is a liquid or fluid at 10° C. or less.2. The substantially water free cement paste composition as claimed in claim 1 , wherein the polar organic carrier component is chosen from glycerol claim 1 , ethylene glycol claim 1 , Cto Calkane diols claim 1 , urea claim 1 , acetamide claim 1 , 1-methyl urea claim 1 , 1 claim 1 ,3-dimethyl urea claim 1 , thiourea claim 1 , benzamide claim 1 , carboxylic acids claim 1 , polyols or carbohydrates claim 1 , oligomers or polymers of a diol claim 1 , oligomers or polymers of a polyol claim 1 , oligomers or polymers of an organic acid claim 1 , oligomers or polymers of a carbohydrate claim 1 , oligourethanes claim 1 , polypeptides claim 1 , or two or more of these.3. The substantially water free cement paste composition as claimed in claim 1 , wherein the polar organic carrier component is chosen from glycerol claim 1 , polyalkoxylated glycerol claim 1 , ethylene glycol claim 1 , urea claim 1 , acetamide claim 1 , 1-methyl urea claim 1 , 1 claim 1 ,3 -dimethyl urea claim 1 , ...

Подробнее
Номер записи: 96
31-03-2022 дата публикации

Method of stabilizing an admixture component, a stabilized admixture for cementitious compositions, cementitious composition, cementitious structures and methods of making the same

Номер: US20220098120A1
Автор: Jacki J. ATIENZA, Michael Myers, Paul Seiler, Sandra SPROUTS, Shaode Ong, Suz-Chung Ko, Thomas Vickers
Принадлежит: CONSTRUCTION RESEARCH AND TECHNOLOGY GmbH

Additives for cementitious compositions are stabilized against particle agglomeration. The additive may be provided in an aqueous liquid admixture composition for cementitious compositions that includes the additive, a polymer thickener, and water, where the particles are stabilized against agglomeration and the admixture is stabilized against physical separation. The method for stabilizing the additive against particle agglomeration utilizes a pH sensitive thickener that may be activated through neutralization of acid groups on the polymer thickener. Methods of making cementitious compositions and hardened cementitious structures using the stabilized additive and admixture are also disclosed.

Подробнее
Номер записи: 97
26-03-2015 дата публикации

Water Repellent Organopolysiloxane Materials

Номер: US20150087747A1
Автор: Campeol Frederick, DIMITROVA Tatiana, Galeone Fabrizio S., Lecomte Jean-Paul H., Marteaux Leon Andre, Salvati Sabrina
Принадлежит:

A process for increasing the hydrophobicity of a porous product by treating the product or a composition providing the product, with a water repellent material, characterised in that the porous product or a composition providing the product is treated with an aqueous suspension of microcapsules, where the microcapsules comprise a water repellent organopolysiloxane core material and a shell of a silicon-based network polymer comprising silica units. 1. A process for increasing the hydrophobicity of a porous product by treating the product or a composition providing the product , with a water repellent material , characterised in that the porous product or a composition providing the product is treated with an aqueous suspension of microcapsules , where the microcapsules comprise a water repellent organopolysiloxane core material and a shell of a silicon-based network polymer comprising silica units.2. A process according to claim 1 , wherein the water repellent organopolysiloxane core material comprises polydimethylsiloxane.3. A process according to claim 1 , wherein the microcapsules are obtainable by the addition of a water-reactive silicon compound comprising a tetraalkoxysilane to an aqueous emulsion of a water repellent organopolysiloxane claim 1 , whereby the water-reactive silicon compound condenses and polymerises at the interface of the droplets in the emulsion to form said microcapsules.4. A process according to claim 3 , wherein the water-reactive silicon compound is tetraethoxysilane.5. A process according to wherein a quaternised aminoalkylalkoxysilane is added to the aqueous emulsion before or simultaneously with the water reactive silicon compound.6. A process according to wherein microcapsules comprising a water repellent organopolysiloxane core material and a shell of a silicon-based network polymer comprising silica units are added to a cementitious composition and the composition is shaped and hardened to form a cementitious product.7. A process ...

Подробнее
Номер записи: 98
19-06-2014 дата публикации

Novel weighted elastomer systems for use in cement, spacer and drilling fluids

Номер: US20140166285A1
Автор: Ashok Santra, Brian Seymour, Ilia Kim PARTCH
Принадлежит: Clearwater International Inc

A drilling fluid, spacer fluid and cementing compositions for use in subterranean wells are disclosed along with methods for making using same, where the compositions include a particulate weighted elastomeric composition system including at least one higher density weighting agent and at least one elastomer, where the higher density weighting agents have a density of at least 5.0 g/cm 3 and conventional weighting agents, to produce compositions having a desired high density, while retaining other fluid properties such as pumpability, gas tight sealing, low tendency to segregate, and reduced high temperature cement strength retrogression.

Подробнее
Номер записи: 99
30-03-2017 дата публикации

Self-Healing Composite of Thermoset Polymer and Programmed Super Contraction Fibers

Номер: US20170088466A1
Автор: Li Guoqiang, Meng Harper
Принадлежит: Board of Supervisors of Louisiana State University and Agricultural and Mechanical College

A composition comprising thermoset polymer, shape memory polymer to facilitate macro scale damage closure, and a means for molecular scale healing is disclosed; the composition has the ability to resolve structural defects by a bio-mimetic close-then heal process. In use, the shape memory polymer serves to bring surfaces of a structural defect into approximation, whereafter use of the means for molecular scale healing allowed for movement of the healing means into the defect and thus obtain molecular scale healing. The means for molecular scale healing can be a thermoplastic such as fibers, particles or spheres which are used by heating to a level at or above the thermoplastic's melting point, then cooling of the composition below the melting temperature of the thermoplastic. Compositions of the invention have the ability to not only close macroscopic defects, but also to do so repeatedly even if another wound/damage occurs in a previously healed/repaired area. 1. A composition comprising:a cement matrix; and,programmed fibrous shape memory polymer which comprises the ability to contract when heated to above its shape recovery temperature.2. The composition of wherein the cement matrix is concrete cement.3. The composition of wherein the cement matrix is asphalt cement.4. The composition of further comprising means for healing at a molecular scale dispersed throughout said matrix.5. The composite of wherein the shape memory polymer is a polyurethane shape memory polymer.6. The composition of wherein the fibrous shape memory polymer fiber is coated by a fixing agent.7. The composite of wherein the fibrous shape memory polymer is in segments of at least the critical fiber length. This application is a divisional of U.S. Nonprovisional application Ser. No. 14/248,711, filed 4 Apr. 2014, now allowed with the issue fee paid; which claims priority from U.S. Provisional Application Ser. No. 61/810,015, filed 9 Apr. 2013, entitled “Self-Healing Composite of Thermoset ...

Подробнее
Номер записи: 100