ШИНА, СОДЕРЖАЩАЯ КОРДЫ КАРКАСНОЙ АРМАТУРЫ, ИМЕЮЩИЕ НИЗКУЮ ПРОНИЦАЕМОСТЬ, И ТЕКСТИЛЬНЫЕ НИТИ, СВЯЗАННЫЕ С КАРКАСНОЙ АРМАТУРОЙ

1. Шина с радиальной каркасной арматурой, состоящей, по меньшей мере, из одного слоя металлических усилительных элементов, расположенных между двумя каландровыми слоями эластомерной смеси, и содержащая арматуру гребня, над которой в радиальном направлении находится протектор, при этом упомянутый протектор соединен с двумя бортами посредством двух боковин, отличающаяся тем, что металлические усилительные элементы, по меньшей мере, одного слоя каркасной арматуры являются кордами, показывающими при так называемом тесте на проницаемость расход менее 20 см/мин, причем, по меньшей мере, один слой каркасной арматуры содержит, по меньшей мере, на одной стороне текстильные нити, причем, по меньшей мере, слой эластомерной смеси, контактирующий в осевом направлении с концом, по меньшей мере, радиально наиболее внутреннего слоя арматуры гребня и контактирующий с каркасной арматурой, представляет собой эластомерную смесь на основе натурального каучука или синтетического полиизопрена с преобладанием связей цис-1,4 и, в случае необходимости, по меньшей мере, одного другого диенового эластомера, при этом в случае купажа натуральный каучук или синтетический полиизопрен присутствуют в преобладающем количестве по сравнению с количеством другого или других используемых диеновых эластомеров, и усиливающий наполнитель, представляющий собой:(i) либо белый наполнитель типа кремнезема и/или глинозема, содержащий поверхностные функциональные группы SiOH и/или AlOH,выбираемый из группы, в которую входят осажденные или пирогенные кремнеземы, глиноземы или алюмосиликаты или сажи, модифицированные в ходе или после синтеза таким образом, чтобы покрывать, по мень РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК B60C 9/08 (13) 2014 129 751 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2014129751, 18.12.2012 (71) Заявитель(и): КОМПАНИ ЖЕНЕРАЛЬ ДЕЗ ЭТАБЛИССМАН МИШЛЕН (FR), МИШЛЕН РЕШЕРШ Э ТЕКНИК С.А. (CH) Приоритет(ы): (30) Конвенционный ...

Schwefelvernetzbare Kautschukmischung

Die Erfindung betrifft eine schwefelvernetzbare Kautschukmischung, die ein Methylenakzeptor-Methylendonor-Paar aufweist. Ferner betrifft die Erfindung einen Fahrzeugluftreifen, der zumindest eine solche mit Schwefel vernetzte Kautschukmischung aufweist.Für gute Haftung zu Festigkeitsträgern bei Verbesserung im Hinblick auf die Arbeitssicherheit und den Umweltschutz ist der Methylenakzeptor ein für eine Reaktion mit einem Methylendonor reaktives Novolak-Harz mit einem Gehalt an freiem Resorcin von weniger als 5 Gew.-% oder ein Vorkondensat, enthaltend ein Novolak-Harz, mit einem Gehalt an freiem Resorcin von weniger als 5 Gew.-%.

Rubber composition comprising epoxide resin and specific amine hardener

本发明涉及一种具有改进的加工性/刚性折衷的橡胶组合物，所述组合物由至少二烯弹性体、增强填料、交联体系、在1和30份/百份橡胶(phr)之间的环氧树脂和在1和15phr之间的特定胺硬化剂制成，特别地，所述特定胺硬化剂包含至少两个位于至少一个六原子芳环体系上的伯胺官能团和至少两个相同或不同的Ri基团，所述Ri基团选自C 1 ‑C 6 直链或支链烷基、卤素和由C 1 ‑C 6 直链或支链烷基取代的醚、叔胺、硫醚、酮、酯和酰胺，所述环体系不包含位于伯胺官能团邻位的氢原子。

Tyre comprising a lightweight crown reinforcement

本发明涉及一种轮胎，所述轮胎包括由两个工作胎冠帘布层(其中内衬帘布层包含炭黑)和周向增强元件帘布层构成的胎冠增强件。根据本发明，工作胎冠帘布层的增强元件为直径小于1.3mm的金属缆线，至少一个工作胎冠帘布层中的每个金属缆线的至少一根丝线为至少UHT级，工作胎冠帘布层的内衬帘布层的弹性模量低于8MPa，并且工作胎冠帘布层的内衬帘布层具有满足log(ρ)高于8的体积电阻率ρ。

COMPRISING TIRE OF the CABLES Of REINFORCEMENT OF CARCASS PRESENTING a LOW PERMEABILITY, AND TEXTILE WIRE ASSOCIATE WITH the REINFORCEMENT OF CARCASS

L'invention concerne un pneumatique à armature de carcasse radiale, constituée d'au moins une couche d'éléments de renforcement métalliques, ledit pneumatique comprenant une armature de sommet, elle-même coiffée radialement d'une bande de roulement, ladite bande de roulement étant réunie à deux bourrelets par l'intermédiaire de deux flancs. Selon l'invention, les éléments de renforcement métalliques d'au moins une couche de l'armature de carcasse sont des câbles présentant au test dit de perméabilité un débit inférieur à 20 cm /mn et au moins une couche de l'armature de carcasse est pourvue sur au moins une face de fils textiles, et au moins la couche de mélange élastomérique, axialement au contact de l'extrémité d'au moins la couche d'armature de sommet radialement la plus intérieure et au contact de l'armature de carcasse, est un mélange élastomérique à base de caoutchouc naturel ou de polyisoprène synthétique et d'une charge renforçante conférant une cohésion élevée.

TIRE COMPRISING A REINFORCEMENT TOP

TYRE COMPRISING A ROBOT INTERACTION SYSTEM

L'invention concerne un pneumatique comprenant une armature de sommet formée d'au moins deux couches de sommet de travail d'éléments de renforcement, une première couche C de mélange caoutchouteux étant disposée entre au moins les extrémités desdites au moins deux couches de sommet de travail, une deuxième couche S de mélange polymérique étant au contact d'au moins une couche de sommet de travail et au contact de l'armature de carcasse et, l'armature de sommet comportant au moins une couche d'éléments de renforcement circonférentiels. Selon l'invention, le module d'élasticité sous tension à 10 % d'allongement de la première couche C est inférieur à 8 MPa, la valeur maximale de tan(δ), noté tan(δ)max, de la première couche C est inférieure à 0.100, et le module complexe de cisaillement dynamique G*, mesuré à 10% et 60 °C sur le cycle retour, de ladite deuxième couche S de mélange polymérique est supérieur à 1.35 MPa.

TYRE COMPRISING A ROBOT INTERACTION SYSTEM

L'invention concerne un pneumatique comprenant une armature de sommet formée d'au moins deux couches de sommet de travail ayant des largeurs axiales inégales, une couche C de mélange caoutchouteux étant disposée entre au moins les extrémités desdites au moins deux couches de sommet de travail, une deuxième couche S de mélange polymérique étant au contact d'au moins une couche de sommet de travail et au contact de l'armature de carcasse et l'armature de sommet comportant au moins une couche d'éléments de renforcement circonférentiels radialement disposée entre deux couches de sommet de travail. Selon l'invention, la distance d entre l'extrémité de la couche de travail axialement la plus étroite et la couche de travail séparée de la couche de travail axialement la plus étroite par la couche C de mélange caoutchouteux est telle que 1.1ø < d < 2.2ø, ø étant le diamètre des éléments de renforcement de ladite au moins une couche d'éléments de renforcement circonférentiels, dans un plan méridien, l'épaisseur de la couche C de mélange caoutchouteux est sensiblement constante et le module complexe de cisaillement dynamique G*, mesuré à 10% et 60 °C sur le cycle retour, de ladite deuxième couche S de mélange polymérique est supérieur à 1.35 MPa. The invention relates to a tire comprising a crown reinforcement consisting of at least two working crown layers having unequal axial widths, a layer C of rubber mixture being disposed between at least the ends of the at least two working crown layers. , a second layer S of polymer mixture being in contact with at least one working crown layer and in contact with the carcass reinforcement and the crown reinforcement comprising at least one layer of circumferential reinforcing elements radially arranged between two layers of working top. According to the invention, the distance d between the end of the axially narrow working layer and the working layer separated from the axially narrow ...

Tire Comprising A Layer Of Circumferential Reinforcing Elements

Tire comprising a crown reinforcement formed of at least two working crown layers of reinforcing elements, a first layer C of rubber compound being placed between at least the ends of the said at least two working crown layers, a second layer S of polymer compound being in contact with at least one working crown layer and in contact with the carcass reinforcement and the crown reinforcement comprising at least one layer of circumferential reinforcing elements. The elastic modulus under tension at 10% elongation of the first layer C is less than 8 MPa, the maximum tan(δ) value, denoted tan(δ)max, of the first layer C is less than 0.100, and the complex dynamic shear modulus G*, measured at 10% and 60° C. on the return cycle, of the said second layer S of polymer compound is greater than 1.35 MPa.

КОМПОЗИЦИЯ КАУЧУКА, СОДЕРЖАЩАЯ ЭПОКСИДНУЮ СМОЛУ И АМИННЫЙ ОТВЕРДИТЕЛЬ

FIELD: chemical engineering.SUBSTANCE: invention relates to a rubber composition showing improved processing/rigidity, wherein the above composition is based on at least a diene elastomer which enhances the filler, the suction system, the epoxy resin in a quantity between 1 and 30 mass fractions on 100 mass fractions of the elastomer, wt.%, and the special amino-containing hardener in a quantity between 1 and 15 wt.% containing in particular at least two primary functional amino groups, located on at least one six-member aromatic ring and at least two radicals of Ri which are identical or distinct, selected from a group consisting of linear or branched C1-C6alkyl radicals, halogens and esters, tertiary amines, thioesters, ketones, esters and amides substituted by linear or branched C1-C6alkyl radicals, wherein said ring does not contain a hydrogen atom arranged in ortho-position relative to the primary functional amino group.EFFECT: invention shows improved processing/rigidity.26 cl, 1 tbl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 743 953 C2 (51) МПК C08L 9/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C08L 9/00 (2021.01) (21)(22) Заявка: 2018143450, 29.06.2017 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): КОМПАНИ ЖЕНЕРАЛЬ ДЭЗ ЭТАБЛИССМАН МИШЛЕН (FR) Дата регистрации: 01.03.2021 30.06.2016 FR 16/56142 (43) Дата публикации заявки: 30.07.2020 Бюл. № 22 (56) Список документов, цитированных в отчете о поиске: WO 2011045342 A1, 21.04.2011. RU 2418816 C2, 20.05.2011. KR 1020150038650 A, 08.04.2015. CN 103080182 A, 01.05.2013. WO 2014016346 A1, 30.01.2014. (45) Опубликовано: 01.03.2021 Бюл. № 7 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 30.01.2019 2 7 4 3 9 5 3 Приоритет(ы): (30) Конвенционный приоритет: R U 29.06.2017 (72) Автор(ы): ЛАНДРО Эмманюэль (FR), ЛОБРИ Филипп (FR) FR 2017/051749 (29.06.2017) C 2 C 2 (86) Заявка PCT: (87) Публикация заявки PCT: R U 2 7 ...

APPARATUS FOR IMPROVED DYNAMIC PROPERTIES

L'invention concerne un pneumatique comprenant une armature de sommet formée d'au moins deux couches de sommet de travail d'éléments de renforcement, croisés d'une couche à l'autre en faisant avec la direction circonférentielle des angles compris entre 10° et 45°. Conformément à l'invention, une première couche S de mélange polymérique est au contact d'au moins une couche de sommet de travail et au contact de l'armature de carcasse, ladite première couche S de mélange polymérique s'étendant axialement jusqu'au moins l'extrémité axiale de la bande de roulement, ladite première couche S de mélange polymérique mélange est constituée d'un mélange élastomérique chargé présentant une note Z de macro dispersion supérieure ou égale à 65 et une valeur maximale de tan(δ), noté tan(δ)max, inférieure à 0.100 et son module complexe de cisaillement dynamique G*, mesuré à 10% et 60 °C sur le cycle retour, est supérieur à 1.35 MPa. A tire comprising a crown reinforcement formed of at least two reinforcing element working crown layers, crossed from one layer to another with angles of between 10 ° and 10 ° to the circumferential direction. 45 °. According to the invention, a first layer S of polymeric mixture is in contact with at least one working crown layer and in contact with the carcass reinforcement, said first layer S of polymeric mixture extending axially up to less the axial end of the tread, said first layer S of mixed polymer mixture consists of a charged elastomer mixture having a macro dispersion of Z greater than or equal to 65 and a maximum value of tan (δ) noted tan (δ) max, less than 0.100 and its complex dynamic shear modulus G *, measured at 10% and 60 ° C on the return cycle, is greater than 1.35 MPa.

A RUBBER COMPOSITION COMPRISING A REINFORCING FILLER SPECIFIC

L'invention concerne une composition de caoutchouc présentant une résistance au roulement améliorée à base d'au moins un élastomère diénique comprenant majoritairement un polyisoprène ; une charge renforçante comprenant de 5 à 60 pce de noir de carbone présentant une surface spécifique BET inférieure à 70 m2/g, dit noir grossier, et de 10 à 30 pce de noir de carbone présentant une surface spécifique BET supérieure au égale à 70 m2/g, dit noir fin ; un sel d'un métal alcalin, alcalino-terreux, ou lanthanide ; et un système de réticulation. The invention relates to a rubber composition having improved rolling resistance based on at least one diene elastomer comprising predominantly polyisoprene; a reinforcing filler comprising from 5 to 60 phr of carbon black having a BET specific surface area of less than 70 m 2 / g, called coarse black, and from 10 to 30 phr of carbon black having a BET specific surface area greater than equal to 70 m 2 / g, called black end; a salt of an alkali metal, alkaline earth metal, or lanthanide; and a crosslinking system.

APPARATUS FOR IMPROVED DYNAMIC PROPERTIES

TYRE COMPRISING A ROBOT INTERACTION SYSTEM

ПОКРЫШКА ДЛЯ КОЛЕС БОЛЬШЕГРУЗНЫХ ТРАНСПОРТНЫХ СРЕДСТВ

FIELD: transport. SUBSTANCE: proposed tire comprises carcass including at least one carcass ply (101), breaker (105) arranged radially outward relative to said carcass. Said breaker comprises the following components: First breaker ply (105a) and second breaker ply (105b). Every of said plies comprises reinforcing cords crossing at the angle to 10-40 degrees. Third breaker ply (105c) includes cords arranged at 10-70 degrees and tread strip (106). It includes at least two inserts (104) arranged between appropriate axial edges of said breaker (105) and said tread strip (106). Every said insert includes first part (104a) converging in equatorial plane of the tire. Every said insert is made of first vulcanised elastomer including diene polymer and definite amount of reinforcing filler. Said reinforcing filler contains at least 70% of silicon dioxide. EFFECT: higher rolling resistance. 15 cl, 2 dwg, 5 tbl

ПНЕВМАТИЧЕСКАЯ РАДИАЛЬНАЯ ШИНА БОЛЬШОЙ ГРУЗОПОДЪЕМНОСТИ

1. Пневматическая радиальная шина большой грузоподъемности, содержащая:протекторную резину, имеющую многослойную конструкцию, состоящую из резины беговой дорожки и резинового слоя сжатия ичетырех или более слоев протекторной резины, расположенных радиально внутри протекторной резины, в которойрадиально внешняя сторона поперечной боковой кромки по меньшей мере либо радиально наиболее удаленного от центра слоя брекера, либо самого широкого слоя брекера покрыта армирующим слоем резины, заканчивающимся на радиально внутренней стороне протекторной резины, не доходя до экваториальной плоскости шины, исоотношение армирующей резины, образующей армирующий слой резины, и резины слоя сжатия с точки зрения модуля эластичности по отскоку удовлетворяет следующему условию:армирующая резина < резина слоя сжатия.2. Шина по п. 1, в которой часть армирующего слоя резины, имеющая максимальную толщину, расположена глубже в поперечном направлении протектора, чем положение поперечной боковой кромки как радиально наиболее удаленного от центра слоя брекера, так и самого широкого слоя брекера.3. Шина по п. 1 или 2, в которой модуль эластичности по отскоку армирующей резины, образующей армирующий слой резины, составляет 70% или меньше.4. Шина по п. 1 или 2, в которой ширина (w) армирующего слоя резины находится в диапазоне 15-25% ширины (W) поверхности качения.5. Шина по п. 1 или 2, содержащая:поперечную канавку, продолжающуюся в поперечном направлении протектора на 1/4 ширины поверхности качения от экваториальной линии к внешней стороне в поперечном направлении протектора, в котороймаксимальная толщина (t) армирующего слоя резины составляет 7 РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2014 121 086 A (51) МПК B60C 9/20 (2006.01) B60C 11/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2014121086/11, 25.10.2012 (71) Заявитель(и): БРИДЖСТОУН КОРПОРЕЙШН (JP) Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): МАЦУМУРА Хироюки (JP ...

ПНЕВМАТИЧЕСКАЯ ШИНА, СОДЕРЖАЩАЯ ОКРУЖНЫЕ УСИЛИТЕЛЬНЫЕ ЭЛЕМЕНТЫ

1. Пневматическая шина с каркасной радиальной арматурой, содержащая, по меньшей мере, два вершинных рабочих слоя усилительных элементов, перекрещивающихся от одного слоя к другому, образуя с окружным направлением углы, составляющие от 10° до 45°, при этом слой С резиновой смеси расположен, по меньшей мере, между краями упомянутых, по меньшей мере, двух вершинных рабочих слоев, а вершинная арматура радиально покрыта протектором, при этом упомянутый протектор соединен двумя бортами с закраинами, причем вершинная арматура содержит, по меньшей мере, один слой окружных усилительных элементов, отличающаяся тем, что модуль упругости под напряжением при 10% удлинении слоя С превышает 9 МПа, причем максимальная величина tan(δ), обозначаемая tan(δ), слоя C меньше 0,100.2. Пневматическая шина по п. 1, отличающаяся тем, что слой С резиновой смеси представляет собой эластомерную смесь на основе натурального каучука или синтетический полиизопрен с большинством цепей цис-1,4 и, при необходимости, по меньшей мере, другой диеновый эластомер, натуральный каучук или синтетический полиизопрен в случае смеси, имеющей мажоритарную долю по отношению к доле другого или используемых других диеновых эластомеров, и усиливающий наполнитель, образованный:а) либо углеродной сажей с удельной поверхностью ВЕТ, меньшей 60 м/г, независимо от ее индекса структуры, используемой с долей, составляющей от 40 до 100 рсе и, предпочтительно, от 60 до 90 рсе,b) либо белым наполнителем типа кремнезема или глинозема, содержащего поверхностные функциональные группы SiOH и/или AlOH, выбранные из группы, образованной осажденными или пиролизными кремнеземами, алюминами или алюмосиликатами, либо также углеродной сажей, модифицирован РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2014 127 875 (13) A (51) МПК B60C 9/18 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2014127875, 05.11.2012 (71) Заявитель(и): КОМПАНИ ЖЕНЕРАЛЬ ДЕЗ ЭТАБЛИССМАН МИШЛЕН (FR), МИШЛЕН РЕШЕР Э ...

For the heavy-duty pneumatic tire

TYRE COMPRISING A ROBOT INTERACTION SYSTEM

TYRE COMPRISING A ROBOT INTERACTION SYSTEM

A RUBBER COMPOSITION COMPRISING AN EPOXY RESIN AND A SPECIFIC AMINE HARDENER

TYRE COMPRISING A ROBOT INTERACTION SYSTEM

L'invention concerne un pneumatique comprenant une armature de sommet formée d'au moins deux couches de sommet de travail ayant des largeurs axiales inégales, une couche C de mélange caoutchouteux étant disposée entre au moins les extrémités desdites au moins deux couches de sommet de travail, une deuxième couche S de mélange polymérique étant au contact d'au moins une couche de sommet de travail et au contact de l'armature de carcasse et l'armature de sommet comportant au moins une couche d'éléments de renforcement circonférentiels radialement disposée entre deux couches de sommet de travail. Selon l'invention, la distance d entre l'extrémité de la couche de travail axialement la plus étroite et la couche de travail séparée de la couche de travail axialement la plus étroite par la couche C de mélange caoutchouteux est telle que 1.1ø < d < 2.2ø, ø étant le diamètre des éléments de renforcement de ladite au moins une couche d'éléments de renforcement circonférentiels, dans un plan méridien, l'épaisseur de la couche C de mélange caoutchouteux est sensiblement constante, ladite deuxième couche S de mélange polymérique mélange est constituée d'un mélange élastomérique chargé présentant une note Z de macro dispersion supérieure ou égale à 65 et une valeur maximale de tan(δ), noté tan(δ)max, inférieure à 0.100 et son module complexe de cisaillement dynamique G*, mesuré à 10% et 60 °C sur le cycle retour, est supérieur à 1.35 MPa. The invention relates to a tire comprising a crown reinforcement consisting of at least two working crown layers having unequal axial widths, a layer C of rubber mixture being disposed between at least the ends of the at least two working crown layers. , a second layer S of polymer mixture being in contact with at least one working crown layer and in contact with the carcass reinforcement and the crown reinforcement comprising at least one layer of circumferential reinforcing elements radially ...

RFID MODULE, AND PNEUMATIC TIRE WITH THE SAME EMBEDDED THEREIN

Provided are an RFID (radio frequency identification) module and a pneumatic tire in which the RFID module is embedded. An RFID module includes an IC (integrated circuit) substrate that stores data, an antenna that transmits and receives data, and a covering layer that covers the antenna. The covering layer contains calcium carbonate, and a relative dielectric constant of the covering layer is 7 or less.

ПНЕВМАТИЧЕСКАЯ ШИНА, СОДЕРЖАЩАЯ ВЕРШИННУЮ АРМАТУРУ

... 1. Пневматическая шина с радиальной каркасной арматурой, содержащая, по меньшей мере, один слой усилительных элементов, при этом упомянутая пневматическая шина содержит вершинную арматуру, образованную, по меньшей мере, двумя усилительными вершинными слоями, перекрещивающимися между собой и образующими с окружным направлением углы, составляющие от 10° до 45°, и края которых радиально разделены полимерной смесью, которые сами покрыты протектором, причем упомянутый протектор объединен двумя боковинами с двумя закраинами, отличающаяся тем, что усилительные элементы, по меньшей мере, одного вершинного рабочего слоя представляют собой металлические жгуты с пропитанными слоями, причем, по меньшей, мере один внутренний слой покрыт оболочкой, образованной полимерной композицией, такой как резиновая композиция, при этом в каждом из плеч пневматической шины, по меньшей мере, полимерная смесь для устранения контактной связи краев, по меньшей мере, двух вершинных рабочих слоев, при тесте на поглощение ...

Fahrzeugluftreifen

Die Erfindung betrifft einen Fahrzeugluftreifen. Um einen Fahrzeugluftreifen mit einer langlebigen Reifengürtelhaltbarkeit bereitzustellen, wird vorgeschlagen, dass die Randbereiche (6, 8) von mindestens einer Gürtellage (3) mit einem kompressiblen Material mit kleinen eingeschlossenen Luftbläschen (13) versehen ist, wodurch bei einer Belastung des Fahrzeugreifens Materialspannungen in den Gürtelkanten (14) reduziert werden.

TYRE INCLUDING A LIGHTWEIGHT CROWN REINFORCEMENT

The invention relates to a tyre that comprises a crown reinforcement made up of two working crown plies, in which the inner-liner plies comprise carbon black, and a ply of circumferential reinforcement elements. According to the invention, the reinforcement elements of the working crown plies are metal cables having a diameter smaller than 1.3 mm, at least one wire of each metal cable of at least one working crown ply is of at least UHT grade, the modulus of elasticity of the inner-liner plies of the working crown plies is lower than 8 MPa, and the inner-liner plies of the working crown plies have a volume resistivity ? such that log(?) is higher than 8.

Tire casing and method of producing tire

Provided is the present invention of a tire casing and a method of producing a tire that improve low-heat buildup and durability, and the method of producing the tire casing, wherein a casing portion comprising a belt portion comprising a plurality of belt layers, a side portion and a bead portion, is vulcanized, is characterized in that at least one method of compounding is used selected from (a) and (b) described below. Method (a) is a method using a rubber component containing 40-60 parts by weight of carbon black with a nitrogen adsorption ratio surface area of 38-99m2/g, stipulated in JIS K 6217-2:2001, to 100 parts by weight of a rubber component, as belt wedge rubber of the belt portion. Method (b) is a method using a rubber component containing 45-60 parts by weight of carbon black with a nitrogen adsorption ratio surface area of 25-60m2/g, stipulated in JIS K 6217-2:2001, to 100 parts by weight of a rubber component, as a layer adjoining with carcass plies of an inner liner, wherein ...

Rubber composition

为了提供一种橡胶组合物，所述橡胶组合物显示优良的生产性并且作为用于在轮胎中的已硫化的橡胶构件之间夹持、共硫化和粘接的粘结剂是理想的，所述轮胎通过粘接单独硫化的橡胶构件制造，以及为了提供用于已替换如飞机轮胎或卡车/公共汽车轮胎(TBR)等的轮胎的胎面橡胶的翻新轮胎的缓冲胶，橡胶组合物相对于100质量份橡胶组分包括0.3-2.5质量份的醛胺类、0.1-1.5质量份的选自由二硫化四(2-乙基己基)秋兰姆、1,6-双(N,N'-二苄基硫代氨基甲酰基二硫代)-己烷和1,6-双{N,N'-二(2-乙基己基)硫代氨基甲酰基二硫代}-己烷组成的组的至少一种化合物和0.1-2.5质量份的噻唑系硫化促进剂。

Tyre comprising an elastomer mixture with a low level of sulphur

本发明涉及具有径向胎体增强件(2)的轮胎，所述径向胎体增强件(2)由至少一个层组成，所述至少一个层包括在径向上由胎面层(4)覆盖的胎冠增强件(3)，所述轮胎包括与至少一个工作胎冠层(31、32)接触并与胎体增强件接触的聚合混合物的层P。根据本发明，至少形成所述胎体增强件层的在径向上位于轮胎的胎冠最外侧的压延层的弹性体混合物具有小于5％的硫桥相对密度，并且形成层P的弹性体混合物具有小于5％的硫桥相对密度，所述弹性体混合物是由至少一种二烯弹性体制得的组合物，所述二烯弹性体选自由如下组成的二烯弹性体：聚丁二烯(缩写为“BR”)、合成聚异戊二烯(IR)、天然橡胶(NR)、异戊二烯共聚物、除丁二烯‑腈共聚物(NBR)以外的丁二烯共聚物、不包括带有羧基官能团的二烯弹性体、以及所述二烯弹性体的混合物。

TYRE COMPRISING A ROBOT INTERACTION SYSTEM

L'invention concerne un pneumatique comprenant une armature de sommet formée d'au moins deux couches de sommet de travail chacune formée d'éléments de renforcement insérés entre deux couches de calandrage de mélange caoutchouteux, une première couche S de mélange polymérique étant au contact d'au moins une couche de sommet de travail et au contact de l'armature de carcasse et l'armature de sommet comportant au moins une couche d'éléments de renforcement circonférentiels. Conformément à l'invention, le module d'élasticité sous tension à 10 % d'allongement d'au moins une couche de calandrage d'au moins une couche de sommet de travail est inférieur à 8,5 MPa, la valeur maximale de tan(δ), noté tan(δ)max, de ladite au moins une couche de calandrage d'au moins une couche de sommet de travail est inférieure à 0.100, ladite première couche S de mélange polymérique mélange est constituée d'un mélange élastomérique chargé présentant une note Z de macro dispersion supérieure ou égale à 65 et une ...

TIRE COMPRISING A REINFORCEMENT TOP

L'invention concerne un pneumatique comprenant une armature de sommet formée d'au moins deux couches de sommet de travail d'éléments de renforcement. Selon l'invention, les éléments de renforcement d'au moins une couche de sommet de travail sont des câbles métalliques à couches saturées, au moins une couche interne étant gainée d'une couche constituée d'une composition polymérique telle qu'une composition de caoutchouc et, dans chacune des épaules du pneumatique, au moins un mélange polymérique au contact des extrémités d'au moins deux couches de sommet de travail présente, au test de sorption, une teneur en gaz inférieure à 0.06 m3STP/m3ML.

HAVING A LAYER IN A TURBOJET ENGINE NACELLE

APPARATUS FOR IMPROVED DYNAMIC PROPERTIES

L'invention concerne un pneumatique comprenant une armature de sommet formée d'au moins deux couches de sommet de travail d'éléments de renforcement, croisés d'une couche à l'autre en faisant avec la direction circonférentielle des angles compris entre 10° et 45°. Conformément à l'invention, une première couche S de mélange polymérique est au contact d'au moins une couche de sommet de travail et au contact de l'armature de carcasse, ladite première couche S de mélange polymérique s'étendant axialement jusqu'au moins l'extrémité axiale de la bande de roulement et le module complexe de cisaillement dynamique G*, mesuré à 10% et 60 °C sur le cycle retour, de ladite première couche S de mélange polymérique est supérieure à 1.35 MPa. A tire comprising a crown reinforcement formed of at least two reinforcing element working crown layers, crossed from one layer to another with angles of between 10 ° and 10 ° to the circumferential direction. 45 °. According to the invention, a first layer S of polymeric mixture is in contact with at least one working crown layer and in contact with the carcass reinforcement, said first layer S of polymeric mixture extending axially up to minus the axial end of the tread and the dynamic shear complex modulus G *, measured at 10% and 60 ° C on the return cycle, of said first polymeric mixture layer S is greater than 1.35 MPa.

CRASH MANAGEMENT ELASTOMERIC LOW SULFUR CONTENT

L'invention concerne un pneumatique à armature de carcasse radiale, constituée d'au moins une couche, comprenant une armature de sommet coiffée radialement d'une bande de roulement, ledit pneumatique comportant une couche P de mélanges polymériques au contact d'au moins une couche de sommet de travail et au contact de l'armature de carcasse. Selon l'invention, au moins les mélanges élastomériques formant la couche de calandrage, radialement la plus extérieure au sommet du pneumatique, de la couche d'armature de carcasse présentent une densité relative de ponts de soufre inférieure à 5 % et les mélanges élastomériques formant la couche P présentent une densité relative de ponts de soufre inférieure à 5 %.

Tire comprising a layer of circumferential reinforcing elements

Tire comprising a crown reinforcement formed of at least two working crown layers of reinforcing elements, a first layer C of rubber compound being placed between at least the ends of the said at least two working crown layers, a second layer S of polymer compound being in contact with at least one working crown layer and in contact with the carcass reinforcement and the crown reinforcement comprising at least one layer of circumferential reinforcing elements. The elastic modulus under tension at 10% elongation of the first layer C is less than 8 MPa, the maximum tan(δ) value, denoted tan(δ)max, of the first layer C is less than 0.100, and the complex dynamic shear modulus G*, measured at 10% and 60° C. on the return cycle, of the said second layer S of polymer compound is greater than 1.35 MPa.

Tire comprising a layer of circumferential reinforcing elements

Tire comprising a crown reinforcement formed of at least two working crown layers each being formed of reinforcing elements inserted between two skim layers of rubber compound, a first layer S of polymer compound being in contact with at least one working crown layer and in contact with the carcass reinforcement and the crown reinforcement comprising at least one layer of circumferential reinforcing elements. The elastic modulus under tension at 10% elongation of at least one skim layer of at least one working crown layer is greater than 9 MPa, the maximum value of tan(δ), denoted tan(δ)max, of the at least one skim layer of at least one working crown layer is less than 0.100 and the complex dynamic shear modulus G*, measured at 10% and 60° C. on the return cycle, of the first layer S of polymer compound is greater than 1.35 MPa.

Patent RU2018143450A3

ПОКРЫШКА ДЛЯ КОЛЕС БОЛЬШЕГРУЗНЫХ ТРАНСПОРТНЫХ СРЕДСТВ

1. Покрышка для колес большегрузных транспортных средств, содержащая:- конструкцию каркаса, включающую по меньшей мере один слой каркаса, содержащий армирующие корды и имеющий края, связанные с соответствующими конструкциями борта;- конструкцию брокера, расположенную в радиально внешнем положении по отношению к упомянутой конструкции каркаса, при этом упомянутая конструкция брекера в радиальном направлении снаружи содержит:- по меньшей мере первый слой брекера, содержащий армирующие корды, расположенные в соответствии с первым направлением, образующим первый угол по отношению к экваториальной плоскости покрышки;- по меньшей мере второй слой брекера, содержащий армирующие корды, расположенные в соответствии со вторым направлением, образующим второй угол по отношению к экваториальной плоскости покрышки, при этом упомянутый второй угол противолежит упомянутому первому углу;- по меньшей мере третий слой брекера, содержащий армирующие корды, расположенные в соответствии с третьим направлением, образующим третий угол по отношению к экваториальной плоскости покрышки, при этом упомянутый третий угол составляет по меньшей мере 10° по абсолютному значению;- протекторное полотно, расположенное в радиально внешнем положении по отношению к упомянутой конструкции брекера;- по меньшей мере две вставки, расположенные между соответствующими аксиальными краями упомянутой конструкции брекера и упомянутым протекторным полотном, при этом каждая из упомянутых вставок содержит первую часть, сужающуюся в направлении экваториальной плоскости упомянутой покрышки, и вторую часть, сужающуюся в направлении оси вращения уп

КОМПОЗИЦИЯ КАУЧУКА, СОДЕРЖАЩАЯ ЭПОКСИДНУЮ СМОЛУ И ОСОБЫЙ АМИННЫЙ ОТВЕРДИТЕЛЬ

Pneumatic tire

TYRE COMPRISING A ROBOT INTERACTION SYSTEM

L'invention concerne un pneumatique comprenant une armature de sommet formée d'au moins deux couches de sommet de travail chacune formée d'éléments de renforcement insérés entre deux couches de calandrage de mélange caoutchouteux, une première couche S de mélange polymérique étant au contact d'au moins une couche de sommet de travail et au contact de l'armature de carcasse et l'armature de sommet comportant au moins une couche d'éléments de renforcement circonférentiels. Conformément à l'invention, le module d'élasticité sous tension à 10 % d'allongement d'au moins une couche de calandrage d'au moins une couche de sommet de travail est supérieur à 9 MPa, la valeur maximale de tan(δ), noté tan(δ)max, de ladite au moins une couche de calandrage d'au moins une couche de sommet de travail est inférieure à 0.100 et le module complexe de cisaillement dynamique G*, mesuré à 10% et 60 °C sur le cycle retour, de ladite première couche S de mélange polymérique est supérieur à 1.35 MPa.

RUBBER COMPOSITION FOR BAND TOPPING, RUBBER COMPOSITION FOR BREAKER EDGE STRIP, AND PNEUMATIC TIRE

TIRE COMPRISING ELASTOMERIC MIXTURES WITH A LOW LEVEL OF SULFUR

The tire has a carcass reinforcement which has at least one layer and a crown reinforcement that is capped radially by a tread. The tire also includes a layer P of polymer compounds in contact with at least one working crown layer and in contact with the carcass reinforcement. The elastomer compounds forming the calendering layer, radially outermost with respect to the crown of the tire, of the carcass reinforcement layer have a relative density of sulfur bridges of less than 5%. The elastomer compounds forming the layer P have a relative density of sulfur bridges of less than 5%. The elastomer compounds are compositions based on at least one diene elastomer selected from the group of polybutadienes (BRs), synthetic polyisoprenes (IRs), natural rubber (NR), isoprene copolymers, butadiene copolymers with the exception of butadiene-nitrile copolymers (NBRs), apart from diene elastomers bearing carboxyl functions, and mixtures of these diene elastomers. 1. A tire having a radial carcass reinforcement , said radial carcass reinforcement including at least one layer formed of reinforcing elements inserted between two calendering layers of an elastomer compound , said tire comprising a crown reinforcement comprising at least two working crown layers of reinforcing elements , said crown reinforcement being itself capped radially by a tread , said tread being joined to two beads via two sidewalls , said tire comprising at least one layer P of polymer compounds in contact with at least one working crown layer and in contact with the carcass reinforcement , said at least one layer P of polymer compound extending axially to at least the axial end of the tread , wherein at least the elastomer compounds forming the calendering layer , radially outermost with respect to the crown of the tire , of said at least one carcass reinforcement layer have a relative density of sulfur bridges measured according to the equilibrium swelling method less than 5% , wherein the elastomer ...

Tire Comprising A Layer Of Circumferential Reinforcement Elements

A tire comprising a crown reinforcement formed of at least two working crown layers each one formed of reinforcing elements inserted between two skim layers of rubber compound, a first layer S of polymer compound being in contact with at least one working crown layer and in contact with the carcass reinforcement and the crown reinforcement comprising at least one layer of circumferential reinforcing elements. The elastic modulus under tension at 10% elongation of the layer C is greater than 9 MPa, the maximum value of tan(δ), denoted tan(δ)max, of the layer C is less than 0.100 and the complex dynamic shear modulus G*, measured at 10% and 60° C. on the return cycle, of the first layer S of polymer compound is greater than 1.35 MPa.

ПНЕВМАТИЧЕСКАЯ ШИНА ДЛЯ БОЛЬШИХ НАГРУЗОК

1. Пневматическая шина для больших нагрузок, включающая:каркас, проходящий от протектора через боковину к борту,брекер, расположенный радиально снаружи каркаса и внутри протектора, иподушечный слой брекера между концом брекера в аксиальном направлении шины и каркасом, гдеуказанный подушечный слой брекера включает по меньшей мере три слоя, включающих внешний слой, промежуточный слой и внутренний слой, которые расположены в указанном порядке внутрь в радиальном направлении шины от конца брекера в аксиальном направлении шины;указанный внешний слой и указанный внутренний слой выполнены из резиновой смеси B с комплексным модулем упругости E*b и тангенсом tan δb угла потерь, иуказанный промежуточный слой выполнен из резиновой смеси C с комплексным модулем упругости E*c, по существу таким же, как комплексный модуль упругости E*b, и с тангенсом tan δc угла потерь меньше, чем тангенс tan δb угла потерь.2. Пневматическая шина для больших нагрузок по п.1, в которойуказанная резиновая смесь B внешнего слоя и внутреннего слоя включает армирующий наполнитель каучука в количестве от 35 до 45 мас.ч. на 100 мас.ч. каучукового компонента, и тангенс tan δb угла потерь составляет от 0,035 до 0,045;указанная резиновая смесь C промежуточного слоя включает армирующий наполнитель каучука в количестве менее 35 мас.ч. на 100 масс, ч. каучукового компонента, и тангенс tan δc угла потерь составляет менее 0,035, иразность между количеством армирующего наполнителя каучука резиновой смеси B и количеством армирующего наполнителя каучука резиновой смеси C составляет менее 5 мас.ч.3. Пневматическая шина для больших нагрузок по п.1, в которойуказанный подушечный слой брекера

Kautschukzusammensetzung die eine Dispersion von Maiskolbenteilchen enthält und Reifen mit einem Bauteil hergestellt aus dieser Zusammensetzung

Heavy load pneumatic radial tire

Provided is a heavy load pneumatic radial tire with which it is possible to effectively suppress progress of destruction within a low-heat-generating base rubber, which contributes to an improvement in high-speed durability, to achieve high durability. In the heavy load pneumatic radial tire according to the present invention, a tread rubber (6) is formed by laminating a cap rubber (5) and a base rubber (4), and at least four belt layers (3a through 3e) are arranged at a radial direction inner side of the tread rubber (6). A radial direction outer side of a width directional edge of at least one of the radial direction outermost belt layer (3e) and the widest belt layer (3c) is covered by a reinforcing rubber layer (7), stopping without reaching a tire equatorial plane (E), at a radial direction inner side of the tread rubber (6). A correlation in terms of modulus of repulsion elasticity between a reinforcing rubber which forms the reinforcing rubber layer (7) and the base rubber (4) satisfies ...

Tyre comprising a layer of circumferential reinforcement elements

TIRE HAVING A CROWN REINFORCEMENT LIGHTENED

L'invention concerne un pneumatique comprenant une armature de sommet formée de deux couches de sommet de travail, dont les couches de calandrage comportent du noir de carbone, et d'une couche d'éléments de renforcement circonférentiels. Selon l'invention, les éléments de renforcement des couches de sommet de travail sont des câbles métalliques présentant un diamètre inférieur à 1.3 mm, au moins un fil de chaque câble métallique d'au moins une couche de sommet de travail est de grade au moins UHT, le module d'élasticité des couches de calandrage des couches de sommet de travail est inférieur à 8,5 MPa et les couches de calandrage des couches de sommet de travail présentent une résistivité électrique volumique p telle que log(ρ) est supérieur à 8. The invention relates to a tire comprising a crown reinforcement consisting of two working crown layers, the calendering layers of which comprise carbon black, and a layer of circumferential reinforcing elements. According to the invention, the reinforcement elements of the working crown layers are metal cables having a diameter of less than 1.3 mm, at least one wire of each wire rope of at least one working crown layer is at least of grade UHT, the modulus of elasticity of the calendering layers of the working crown layers is less than 8.5 MPa and the calendering layers of the working crown layers have a volume electrical resistivity p such that log (ρ) is greater than 8.

HAVING A LAYER IN A TURBOJET ENGINE NACELLE

TYRE COMPRISING A BUFFER ZONE BETWEEN THE CARCASS REINFORCEMENT AND THE CROWN REINFORCEMENT

L'invention concerne un pneumatique à armature de carcasse radiale, constituée d'au moins une couche d'éléments de renforcement métalliques, ledit pneumatique comprenant une armature de sommet, elle-même coiffée radialement d'une bande de roulement, ladite bande de roulement étant réunie à deux bourrelets par l'intermédiaire de deux flancs, ledit pneumatique comprenant une première couche G de mélange polymérique radialement entre l'armature de carcasse et la couche d'éléments de renforcement radialement la plus intérieure de l'armature de sommet et une deuxième couche S de mélange polymérique axialement au contact de la première couche G de mélange polymérique,. Selon l'invention, ladite une première couche G de mélange polymérique constitue une zone tampon prévue pour piéger l'oxygène extérieur à ladite première couche, la largeur axiale de ladite première couche étant au moins égale à 70 % de la largeur de la couche d'éléments de renforcement radialement la plus intérieure de l'armature de sommet et ladite deuxième couche S de mélange polymérique mélange est constituée d'un mélange élastomérique chargé présentant une note Z de macro dispersion supérieure ou égale à 65 et une valeur maximale de tan(δ), noté tan(δ)max, inférieure à 0. 100. The invention relates to a tire with a radial carcass reinforcement, consisting of at least one layer of metal reinforcing elements, said tire comprising a crown reinforcement, itself capped radially with a tread, said tread being joined to two beads by means of two sidewalls, said tire comprising a first layer G of polymeric mixture radially between the carcass reinforcement and the radially innermost reinforcing element layer of the crown reinforcement and a second layer S of polymer mixture axially in contact with the first layer G of polymeric mixture ,. According to the invention, said first layer G of polymeric mixture constitutes a buffer zone designed to trap the oxygen ...

TIRE WITH POLYMERS CONTAINING AN INNER LAYER FOR REDUCING ROLLING NOISE

Pneu pour véhicule automobile comportant une couche interne de sommet disposée circonférentiellement entre la bande de roulement et l'armature de carcasse du pneu, caractérisé en ce que cette couche interne de sommet est une composition de caoutchouc thermo-expansible comportant : - 50 à 100 pce de polyisoprène ou polybutadiène; - optionnellement, 0 à 50 pce d'un autre élastomère diénique ; - 20 à 80 pce d'une charge renforçante ; - entre 2 et 25 pce d'un agent d'expansion ; - entre 2 et 25 pce d'un acide carboxylique dont la température de fusion est comprise entre 60°C et 220°C ; - un système de réticulation à base de soufre et de 5 à 15 pce d'un accélérateur de vulcanisation ; - le ratio pondéral (acide carboxylique / accélérateur) étant inférieur à 2,0. Procédé d'obtention d'un tel pneu. Cette couche interne de sommet permet de réduire le bruit de roulage des pneumatiques sans pénaliser leur résistance au roulement. Motor vehicle tire having an inner crown layer disposed circumferentially between the tread and the carcass reinforcement of the tire, characterized in that said inner crown layer is a heat-expandable rubber composition comprising: - 50 to 100 phr polyisoprene or polybutadiene; optionally, 0 to 50 phr of another diene elastomer; 20 to 80 phr of a reinforcing filler; between 2 and 25 phr of an expansion agent; - Between 2 and 25 phr of a carboxylic acid whose melting point is between 60 ° C and 220 ° C; a sulfur-based crosslinking system and from 5 to 15 phr of a vulcanization accelerator; the weight ratio (carboxylic acid / accelerator) being less than 2.0. Process for obtaining such a tire This inner top layer reduces the rolling noise of the tires without penalizing their rolling resistance.

pneu para rodas de veículo de carga pesada

Tire comprising a layer of circumferential reinforcing elements

Tire comprising a crown reinforcement formed of at least two working crown layers each formed of reinforcing elements inserted between two skim layers of rubber compound. First layer S of polymer compound is in contact with a working crown layer and the carcass reinforcement. The crown reinforcement comprises a layer of circumferential reinforcing elements. The elastic modulus under tension at 10% elongation of a skim layer of a working crown layer is less than 8.5 MPa, the maximum value of tan(δ) of the skim layer of a working crown layer is <0.100. First layer S comprises a filled elastomer blend having a macro dispersion coefficient Z≥65 and a maximum tan(δ) value <0.100 and its complex dynamic shear modulus G*, measured at 10% and 60° C. on the return cycle is >1.35 MPa.

With improved dynamic characteristics of the tire

TIRE CONTAINING AN INNER LAYER FOR REDUCING NOISES ROLLING

APPARATUS FOR IMPROVED DYNAMIC PROPERTIES

CRASH MANAGEMENT ELASTOMERIC LOW SULFUR CONTENT

L'invention concerne un pneumatique à armature de carcasse radiale constituée d'une couche d'éléments de renforcement ancrée dans chacun des bourrelets par retournement autour d'une tringle, ledit retournement d'armature de carcasse étant renforcé par au moins une couche d'éléments de renforcement ou raidisseur. Selon l'invention, la densité relative de ponts de soufre mesurée selon la méthode de gonflement à l'équilibre est inférieure à 5 % dans au moins 30 % des mélanges élastomériques présents dans la surface d'au moins une zone Z dans un plan méridien. The invention relates to a tire with a radial carcass reinforcement consisting of a layer of reinforcement elements anchored in each of the beads by turning around a bead wire, said carcass reinforcement overturning being reinforced by at least one layer of reinforcement. reinforcing elements or stiffener. According to the invention, the relative density of sulfur bridges measured according to the equilibrium swelling method is less than 5% in at least 30% of the elastomeric mixtures present in the surface of at least one zone Z in a meridian plane .

TYRE COMPRISING A ROBOT INTERACTION SYSTEM

L'invention concerne un pneumatique comprenant une armature de sommet formée d'au moins deux couches de sommet de travail chacune formée d'éléments de renforcement insérés entre deux couches de calandrage de mélange caoutchouteux, une première couche S de mélange polymérique étant au contact d'au moins une couche de sommet de travail et au contact de l'armature de carcasse et l'armature de sommet comportant au moins une couche d'éléments de renforcement circonférentiels. Conformément à l'invention, le module d'élasticité sous tension à 10 % d'allongement de la couche C est supérieur à 9 MPa, la valeur maximale de tan(δ), noté tan(δ)max, de ladite couche C est inférieure à 0.100 et le module complexe de cisaillement dynamique G*, mesuré à 10% et 60 °C sur le cycle retour, de ladite première couche S de mélange polymérique est supérieur à 1.35 MPa The invention relates to a tire comprising a crown reinforcement consisting of at least two working crown layers each formed of reinforcing elements inserted between two layers of calendering rubber mix, a first layer S of polymeric mixture being in contact with each other. at least one working crown layer and in contact with the carcass reinforcement and the crown reinforcement comprising at least one layer of circumferential reinforcing elements. According to the invention, the tensile modulus of elasticity at 10% elongation of the layer C is greater than 9 MPa, the maximum value of tan (δ), denoted tan (δ) max, of said layer C is less than 0.100 and the complex dynamic shear modulus G *, measured at 10% and 60 ° C on the return cycle, of said first layer S of polymer mixture is greater than 1.35 MPa

AMINOSILANE INITIATORS AND FUNCTIONALIZED POLYMERS PREPARED THEREFROM

Tire Comprising a Layer of Circumferential Reinforcing Elements

Tire comprising a crown reinforcement formed of at least two working crown layers each being formed of reinforcing elements inserted between two skim layers of rubber compound, a first layer S of polymer compound being in contact with at least one working crown layer and in contact with the carcass reinforcement and the crown reinforcement comprising at least one layer of circumferential reinforcing elements. The elastic modulus under tension at 10% elongation of at least one skim layer of at least one working crown layer is greater than 9 MPa, the maximum value of tan(δ), denoted tan(δ)max, of the at least one skim layer of at least one working crown layer is less than 0.100 and the complex dynamic shear modulus G*, measured at 10% and 60° C. on the return cycle, of the first layer S of polymer compound is greater than 1.35 MPa.

HEAVY LOAD PNEUMATIC RADIAL TIRE

Provided is a heavy load pneumatic radial tire with which it is possible to effectively suppress progress of destruction within a low-heat-generating base rubber, which contributes to an improvement in high-speed durability, to achieve high durability. In the heavy load pneumatic radial tire according to the present invention, a tread rubber (6) is formed by laminating a cap rubber (5) and a base rubber (4), and at least four belt layers (3a through 3e) are arranged at a radial direction inner side of the tread rubber (6). A radial direction outer side of a width directional edge of at least one of the radial direction outermost belt layer (3e) and the widest belt layer (3c) is covered by a reinforcing rubber layer (7), stopping without reaching a tire equatorial plane (E), at a radial direction inner side of the tread rubber (6). A correlation in terms of modulus of repulsion elasticity between a reinforcing rubber which forms the reinforcing rubber layer (7) and the base rubber (4) satisfies ...

TYRE COMPRISING A BUFFER ZONE BETWEEN THE CARCASS REINFORCEMENT AND THE CROWN REINFORCEMENT

TYRE COMPRISING A ROBOT INTERACTION SYSTEM

TIRE HAVING CARCASS REINFORCEMENT CABLES HAVING LOW PERMEABILITY, AND TEXTILE CORDS ASSOCIATED WITH THE CARCASS REINFORCEMENT

The invention relates to a tire having a radial carcass reinforcement that consists of at least one layer of metal reinforcement layers, said tire including at least one crown reinforcement, which is in turn radially covered by a tread, said tread being joined to two beads via two sidewalls. According to the invention, the metal reinforcement elements of at least one layer of the carcass reinforcement are cables having, in the so-called perviousness test, a flow rate of less than 20 cm3/min, and at least one carcass reinforcement layer is provided on at least one surface consisting of textile threads, and at least the layer made of an elastomeric mixture, which axially engages with the end of at least the radially innermost crown reinforcement layer and with the carcass reinforcement, is an elastomeric mixture containing natural rubber or synthetic polyisoprene and a reinforcing filler imparting high cohesion thereto.

TYRE COMPRISING A ROBOT INTERACTION SYSTEM

L'invention concerne un pneumatique comprenant une armature de sommet formée d'au moins deux couches de sommet de travail chacune formée d'éléments de renforcement insérés entre deux couches de calandrage de mélange caoutchouteux, une première couche S de mélange polymérique étant au contact d'au moins une couche de sommet de travail et au contact de l'armature de carcasse et l'armature de sommet comportant au moins une couche d'éléments de renforcement circonférentiels. Conformément à l'invention, le module d'élasticité sous tension à 10 % d'allongement d'au moins une couche de calandrage d'au moins une couche de sommet de travail est inférieur à 8,5 MPa, la valeur maximale de tan(δ), noté tan(δ)max, de ladite au moins une couche de calandrage d'au moins une couche de sommet de travail est inférieure à 0.100 et le module complexe de cisaillement dynamique G*, mesuré à 10% et 60 °C sur le cycle retour, de ladite première couche S de mélange polymérique est supérieur à 1.35 MPa. The invention relates to a tire comprising a crown reinforcement consisting of at least two working crown layers each formed of reinforcing elements inserted between two layers of calendering rubber mix, a first layer S of polymeric mixture being in contact with each other. at least one working crown layer and in contact with the carcass reinforcement and the crown reinforcement comprising at least one layer of circumferential reinforcing elements. According to the invention, the tensile modulus of elasticity at 10% elongation of at least one calendering layer of at least one working crown layer is less than 8.5 MPa, the maximum value of tan. (δ), denoted tan (δ) max, of said at least one calendering layer of at least one working crown layer is less than 0.100 and the complex dynamic shear modulus G *, measured at 10% and 60 ° C on the return cycle, of said first layer S of polymeric mixture is greater than 1.35 MPa.

Polybenzoxazine that can be used for coating metal and for the bonding of same to rubber

Polybenzoxazine comprises repeat units which comprise at least one unit corresponding to the formulae (I) or (II): in which Z1and Z2, which are identical or different, represent an at least divalent, aliphatic, cycloaliphatic or aromatic bonding group comprising at least one carbon atom and optionally at least one heteroatom selected from O, S, N and P. Such a polybenzoxazine may be used as a metal-adhesive layer, in particular for the adhesive bonding of a metal substrate, in particular made of carbon steel, to a rubber.

TYRE COMPRISING A ROBOT INTERACTION SYSTEM

CRASH MANAGEMENT ELASTOMERIC LOW SULFUR CONTENT

L'invention concerne un pneumatique à armature de carcasse radiale, comprenant une armature de sommet comportant au moins deux couches de sommet de travail d'éléments de renforcement, elle-même coiffée radialement d'une bande de roulement, ladite bande de roulement étant réunie à deux bourrelets par l'intermédiaire de deux flancs. Selon l'invention, la densité relative de ponts de soufre mesurée selon la méthode de gonflement à l'équilibre est inférieure à 5 % dans au moins 30 % des mélanges élastomériques présents dans la surface d'au moins une zone S dans un plan méridien.

Tire assembly containing an internal composite comprising a metal cord reinforced rubber layer with an auxiliary buffer rubber layer

A tire assembly comprising an assembly of uncured components is disclosed. The assembly of uncured components includes a circumferential uncured internal composite comprising a combination of at least one uncured layer (6A, 6B) of a metal cord reinforcement containing rubber composition with a sulfur content of at least 2.5 phr and at least one adjoining auxiliary buffer layer (11 A, 11B, 11 C) of uncured rubber without cord reinforcement and having a sulfur content of at least 1 phr less than the sulfur content of the metal cord reinforcement containing rubber composition. The uncured internal composite is positioned between an outer circumferential uncured tread (2) and a supporting inner uncured carcass (7). Also, a tire comprising a sulfur cured tire assembly is disclosed.

Heavy load pneumatic radial tire

Provided is a heavy load pneumatic radial tire with which it is possible to effectively suppress progress of destruction within a low-heat-generating base rubber, which contributes to an improvement in high-speed durability, to achieve high durability. In the heavy load pneumatic radial tire according to the present invention, a tread rubber (6) is formed by laminating a cap rubber (5) and a base rubber (4), and at least four belt layers (3a through 3e) are arranged at a radial direction inner side of the tread rubber (6). A radial direction outer side of a width directional edge of at least one of the radial direction outermost belt layer (3e) and the widest belt layer (3c) is covered by a reinforcing rubber layer (7), stopping without reaching a tire equatorial plane (E), at a radial direction inner side of the tread rubber (6). A correlation in terms of modulus of repulsion elasticity between a reinforcing rubber which forms the reinforcing rubber layer (7) and the base rubber (4) satisfies ...

HEAVY LOAD PNEUMATIC RADIAL TIRE

Provided is a heavy load pneumatic radial tire with which it is possible to effectively suppress progress of destruction within a low-heat-generating base rubber, which contributes to an improvement in high-speed durability, to achieve high durability. In the heavy load pneumatic radial tire according to the present invention, a tread rubber (6) is formed by laminating a cap rubber (5) and a base rubber (4), and at least four belt layers (3a through 3e) are arranged at a radial direction inner side of the tread rubber (6). A radial direction outer side of a width directional edge of at least one of the radial direction outermost belt layer (3e) and the widest belt layer (3c) is covered by a reinforcing rubber layer (7), stopping without reaching a tire equatorial plane (E), at a radial direction inner side of the tread rubber (6). A correlation in terms of modulus of repulsion elasticity between a reinforcing rubber which forms the reinforcing rubber layer (7) and the base rubber (4) satisfies ...

Elastomeric compositions comprising vinyl acetal polymers

A TYRE COMPRISING A ROBOT

A RUBBER COMPOSITION COMPRISING AN EPOXY RESIN AND A SPECIFIC AMINE HARDENER

L'invention concerne une composition de caoutchouc présentant un compromis processabilité / rigidité amélioré, ladite composition étant à base d'au moins, un élastomère diénique, une charge renforçante, un système de réticulation, entre 1 et 30 parties en poids pour cent parties en poids d'élastomère, pce, d'une résine époxyde et entre 1 et 15 pce d'un durcisseur aminé spécifique comprenant notamment au moins deux fonctions amines primaires situées sur au moins un cycle aromatique à six atomes et au moins deux radicaux Ri, identiques ou différents, choisis dans le groupe constitué par les radicaux alkyles linéaires ou ramifiés en C1-C6, les halogènes, et les éthers, les amines tertiaires, les thio-éthers, les cétones, les esters et les amides, substitués par des radicaux alkyles linéaires ou ramifiés en C1-C6, ledit cycle ne comprenant pas d'atome d'hydrogène situé en position ortho par rapport aux fonctions amines primaires.

TIRE COMPRISING a LAYER Of CIRCUMFERENTIAL ELEMENTS OF REINFORCEMENT

L'invention concerne un pneumatique comprenant une armature de sommet formée d'au moins deux couches de sommet de travail d'éléments de renforcement, une couche C de mélange caoutchouteux étant disposée entre au moins les extrémités desdites au moins deux couches de sommet de travail et, l'armature de sommet comportant au moins une couche d'éléments de renforcement circonférentiels. Selon l'invention, le module d'élasticité sous tension à 10 % d'allongement de la couche C est supérieur à 9 MPa et la valeur maximale de tan(δ), noté tan(δ)max, de la couche C est inférieure à 0.100.

TYRE COMPRISING A ROBOT INTERACTION SYSTEM

L'invention concerne un pneumatique comprenant une armature de sommet formée d'au moins deux couches de sommet de travail d'éléments de renforcement, une première couche C de mélange caoutchouteux étant disposée entre au moins les extrémités desdites au moins deux couches de sommet de travail, une deuxième couche S de mélange polymérique étant au contact d'au moins une couche de sommet de travail et au contact de l'armature de carcasse et, l'armature de sommet comportant au moins une couche d'éléments de renforcement circonférentiels. Selon l'invention, le module d'élasticité sous tension à 10 % d'allongement de la première couche C est inférieur à 8 MPa, la valeur maximale de tan(δ), noté tan(δ)max, de la première couche C est inférieure à 0.100, ladite deuxième couche S de mélange polymérique mélange est constituée d'un mélange élastomérique chargé présentant une note Z de macro dispersion supérieure ou égale à 65 et une valeur maximale de tan(δ), noté tan(δ)max, inférieure à 0.100 et ...

Tire Comprising A Layer Of Circumferential Reinforcing Elements

Tire comprising a crown reinforcement formed of at least two working crown layers of reinforcing elements. First layer C of rubber compound is placed between ends of the two working crown layers. Second layer S of polymer compound is in contact with at least one working crown layer and with the carcass reinforcement. The crown reinforcement includes at least one layer of circumferential reinforcing elements. The elastic modulus under tension at 10% elongation of first layer C is less than 8 MPa, the maximum value of tan(δ) of first layer C is less than 0.100. The second layer S is made up of a filled elastomer blend having a macro dispersion coefficient Z greater than or equal to 65 and a maximum tan(δ) value less than 0.100, and its complex dynamic shear modulus G*, measured at 10% and 60° C. on the return cycle, is greater than 1.35 MPa.

Tire Comprising A Layer Of Circumferential Reinforcing Elements

Tire comprising a crown reinforcement formed of at least two working crown layers each formed of reinforcing elements inserted between two skim layers of rubber compound. First layer S of polymer compound is in contact with a working crown layer and the carcass reinforcement. The crown reinforcement comprises a layer of circumferential reinforcing elements. The elastic modulus under tension at 10% elongation of a skim layer of a working crown layer is less than 8.5 MPa, the maximum value of tan(δ) of the skim layer of a working crown layer is <0.100. First layer S comprises a filled elastomer blend having a macro dispersion coefficient Z≧65 and a maximum tan(δ) value <0.100 and its complex dynamic shear modulus G*, measured at 10% and 60° C. on the return cycle is >1.35 MPa.

pneumático que compreende uma camada de elementos de reforço circunferenciais

TIRE COMPRISING CARCASS REINFORCEMENT CABLES HAVING LOW PERVIOUSNESS, AND TEXTILE THREADS ASSOCIATED WITH THE CARCASS REINFORCEMENT

タイヤの製造方法

Tyre for heavy load vehicle wheels

A tyre for heavy load vehicles comprising an insert interposed between a belt structure and a tread band, at least at each end of the belt structure, and made by vulcanising an elastomeric composition comprising a diene rubber and at least one reinforcing filler, wherein the reinforcing filler comprises almost exclusively silica.

Airless tire

An airless tire includes a tread ring having a cylindrical form and a ground contact surface, a hub positioned on radial direction inner side of the tread ring and formed to be fixed to an axle, and a spoke structure connecting the tread ring and hub. The tread ring includes a tread rubber layer forming the ground contact surface, and a reinforcing rubber layer formed on tire radial direction inner side of the tread layer, and the reinforcing layer is formed of a rubber material obtained by co-crosslinking a rubber composition including a rubber component, an α, β-unsaturated carboxylic acid metal salt and a peroxide such that the metal salt has amount in range of 10 to 80 parts by weight with respect to 100 parts by mass of the rubber component and the rubber component has content rate of butadiene rubber in range of 10 to 100% by mass.

아미노실란 개시제 및 이로부터 제조된 관능화된 중합체

음이온 중합에 관능성 개시제로서 사용되는 금속화된 아미노실란 화합물 및 이 금속화된 아미노실란 화합물을 사용하여 적어도 1종의 음이온 중합성 단량체의 음이온 중합을 개시시켜 아미노실란-관능화된 중합체를 제조하는 방법이 제공된다. 금속화된 아미노실란 화합물을 바람직하게 사용함으로써 아미노실란 관능화된 중합체를 포함하는, 타이어에 사용되는 고무 조성물이 얻어진다. A method for producing an aminosilane-functionalized polymer by initiating anionic polymerization of at least one anionic polymerizable monomer using a metallized aminosilane compound used as an initiator for anionic polymerization and the metallized aminosilane compound Method is provided. By using the metallized aminosilane compound preferably, a rubber composition for use in a tire is obtained which comprises an amino silane functionalized polymer.

HIGH PERFORMANCE TYRE FOR VEHICLE WHEELS

A tyre for vehicle wheels, includes a carcass structure including at least one carcass layer, a belt structure applied in a radially outer position with respect to the carcass structure, a tread band applied in a radially outer position with respect to the belt structure, and at least one layer of elastomeric material applied in a radially inner position with respect to the tread band; in which the at least one elastomeric material layer includes inorganic fibres of magnesium and/or aluminium silicates of nanometric dimensions.

pneumático que apresenta propriedades dinâmicas aperfeiçoadas

Fahrzeugluftreifen

Die Erfindung betrifft einen Fahrzeugluftreifen in Radialbauart mit einem Laufstreifen (1), einem aus mehreren Gürtellagen (2a, 2b, 2c, 2d) bestehenden Gürtelverband (2), einer Karkasseinlage (3), einer Innenschicht (4) sowie einem Gummibauteil (6) in jedem Schulterbereich, wobei der Gummibauteil (6) aus einer Kautschukmischung gefertigt ist, welche als Füllstoff Ruß enthält. Die Kautschukmischung des Gummibauteils (6) enthält als weiteren Füllstoff Kaolin.

PNEUMATIC TIRE

A pneumatic tire includes: a tread portion; and a sound suppressor extending in a tire circumferential direction over an entire circumference of a tire inner peripheral surface of the tread portion. The sound suppressor includes: a porous part attached to the tire inner peripheral surface of the tread portion; and a thin film part laminated inside in a tire radial direction of the porous part and facing a tire inner cavity. The thin film part is a non-porous material, and formed with a plurality of through holes. 1. A pneumatic tire comprising:a tread portion; anda sound suppressor extending in a tire circumferential direction over an entire circumference of a tire inner peripheral surface of the tread portion, a porous part attached to the tire inner peripheral surface of the tread portion; and', 'a thin film part laminated inside in a tire radial direction of the porous part and facing a tire inner cavity, and, 'wherein the sound suppressor includesthe thin film part is a non-porous material, and formed with a plurality of through holes.2. The pneumatic tire according to claim 1 , whereinthe thin film part is formed of a thermoplastic polymer, a thermoplastic resin, a thermoplastic elastomer, or a rubber.3. The pneumatic tire according to claim 1 , whereinin the sound suppressor, a natural frequency of the thin film part is between 200 Hz and 250 Hz inclusive in a state where the thin film part being laminated on the porous part.4. The pneumatic tire according to claim 1 , whereina thickness of the thin film part is between 0.1 mm and 2.0 mm inclusive.5. The pneumatic tire according to claim 1 , whereina thickness of the thin film part is between 2% and 10% inclusive of a thickness of the porous part.6. The pneumatic tire according to claim 1 , whereina hole diameter of each of the through holes is between 1 mm and 10 mm inclusive.7. The pneumatic tire according to claim 1 , whereinan interval between the plurality of through holes is between 5 mm and 50 mm ...

METHOD FOR PREPARING MODIFIED RUBBER, MODIFIED RUBBER, AND BULLETPROOF AND PUNCTURE RESISTANT TIRE

A method for preparing a modified rubber introduces a reactive group into a high-performance short fiber by irritating the short fiber by ultraviolet light, and modifies the short fiber by a coupling agent to increase the compatibility of the short fiber with a rubber matrix, and finally, utilizes the charge repulsion of sodium lauryl sulfate to effectively avoid the agglomeration of the short fibers in the rubber matrix, which is benefit for obtaining the modified rubber. The present disclosure further provides a modified rubber prepared by the method and a bulletproof and puncture resistant tire prepared by the modified rubber, wherein a buffer layer is made by the modified rubber, and at least one of a tread, a belt ply and an inner liner is made by the modified rubber, and a cord ply is woven by twisted high-performance long fibers. 1. A method for preparing a modified rubber , comprising the steps of:irradiating high-performance short fibers by ultraviolet light;adding the irradiated high-performance short fibers to ethanol and stirring to prepare a uniformly dispersed fiber suspension;adding a coupling agent to the prepared fiber suspension;adjusting a pH value of the fiber suspension to a range from 8 to 9, and waiting for 2 to 4 hours at room temperature;adding sodium dodecylbenzenesulfonate into the fiber suspension and waiting for 1 to 2 hours to prepare a reaction solution;filtering the reaction solution under a reduced pressure to remove liquid from the reaction solution and prepare a modified fiber slurry;adding the modified fiber slurry into a carbon black and an inorganic filler to prepare a modified fiber slurry mixture;adding plasticized polar or non-polar rubber to an internal mixer and pressurized mixing for 1 to 2 minutes to prepare a rubber matrix;adding the modified fiber slurry mixture to the rubber matrix and further pressurized mixing for 1 to 2 minutes to prepare a mixed rubber compound;extruding the rubber compound from an open mill to ...

Rubber composition comprising a corncob granule dispersion and tire having a component thereof

This invention relates to a rubber composition and tire having at least one component of a rubber composition comprised of at least one diene-based elastomer, to the exclusion of butyl type elastomers, which contains an internal dispersion of corncob granules. Such tire component may be, for example, a tire tread and/or cord reinforced rubber ply and/or belt. A tire tread intended for winter driving, although not necessarily limited to winter driving, is provided of a rubber composition containing at least one diene-based sulfur vulcanizable elastomer having a Tg below -30°C and an internal dispersion therein of corncob granules. The running surface of the tire tread is configured with a combination of micro-protrusions of corncob granules from said corncob granule internal dispersion and micro-cavities therein created by a release of a portion of the protruded corncob granules during the abrading, or wearing, of the tire tread running surface as the tire is being run. At least a portion ...

Includes the peripheral layer to the reinforcing element for the tire

Rubber composition and tire thereof

Vehicle tires with reinforcement coatings and/or belt edge strips made of a sulfur-crosslinked mixture comprising 50-100 phr natural rubber (parts per 100 rubber), 45-100 phr silica and/or carbon black, 0.2-2 phr organic cobalt salt and 3.5-6 phr sulfur, which also contains 5-50 phr of a 5-40 wt% micro-dispersion of syndiotactic 1,2-polybutadiene (BR) in cis-1,4-BR.

Tyre comprising a layer of circumferential reinforcing elements

The invention relates to a tyre (1) comprising a crown reinforcement (4) formed by at least two working crown layers (41, 43) of reinforcing elements, a layer C of rubber mix being disposed between at least the ends of the at least two working crown layers (41, 43) and the crown reinforcement (4) comprising at least one layer (42) of circumferential reinforcing elements. According to the invention, the tensile modulus at 10% elongation of layer C is greater than 9 MPa and the maximum value of tan(delta), denoted tan(delta)max, of layer C is less than 0.100.

composição de borracha para cobertura de banda, composição de borracha para tira de borda de interruptor, e pneumatico

Rubber composition for tire cord coating, breaker edge strip, breaker cushion or cord-adjoining strip, and pneumatic tire

Provided are a rubber composition for a tire cord topping, a breaker edge strip, a breaker cushion, or a strip adjacent to cords, which achieves a balanced improvement in handling stability, fuel economy, durability, ride quality, and adhesion; and pneumatic tires including the same. The rubber composition includes: an isoprene-based rubber; a phenol resin and/or an alkylphenol resin; and a partial condensate of HMMM and/or a partial condensate of HMMPME, wherein an amount of the isoprene-based rubber is 60% by mass or higher per 100% by mass of the rubber component; and combined amount of the phenol resin and the alkylphenol resin is 2-3.9 parts by mass, combined amount of the partial condensate of HMMM and the partial condensate of HMMPME is 0.5-5 parts by mass, and an amount of silica is at most 15 parts by mass, each per 100 parts by mass of the rubber component.

Schwefelvernetzbare Kautschukmischung

Die Erfindung betrifft eine schwefelvernetzbare Kautschukmischung, die ein Methylenakzeptor-Methylendonor-Paar aufweist. Ferner betrifft die Erfindung einen Fahrzeugluftreifen, der zumindest eine solche mit Schwefel vernetzte Kautschukmischung aufweist.Für gute Haftung zu Festigkeitsträgern bei Verbesserung im Hinblick auf die Arbeitssicherheit und den Umweltschutz ist der Methylenakzeptor ein für eine Reaktion mit einem Methylendonor reaktives Resorcin-Formaldehyd-Harz mit Dicyclopentadien- und Styrolfunktionalisierung, wobei das Resorcin-Formaldehyd-Harz einen Gehalt an freiem Resorcin von weniger als 5 Gew.-% und einen Gehalt an freiem Phenol von weniger als 5 Gew.-% aufweist.

Aminosilane initiators and functionalized polymers prepared therefrom

pneumático que apresenta propriedades dinâmicas aperfeiçoadas

Tire

The invention relates to a tire with radial carcass reinforcement, made up of at least one layer of metal reinforcing elements, the said tire comprising a crown reinforcement, itself radially capped by a tread, the said tread being connected to two beads via two side walls, the said tire comprising a first layer of polymer compound radially between the carcass reinforcement and the radially innermost layer of reinforcing elements of the crown reinforcement. According to the invention, the said first layer of polymer compound constitutes a buffer zone designed to trap oxygen on the outside of the said first layer, the axial width of the said first layer being at least equal to 70% of the width of the radially innermost layer of reinforcing elements of the crown reinforcement.

Pneumatic tire for heavy load

A belt cushion disposed between an tire-axis-direction end of a belt layer and a carcass comprises an outer layer, an interlayer, and an inner layer which are arranged in this order inwardly in the tire-radial-direction from the tire-axis-direction end of the belt layer. The inner layer and outer layer are made of a rubber composition B having complex modulus E*b and loss tangent tan δb. The interlayer is made of a rubber composition C having complex modulus E*c being substantially the same as the complex modulus E*b and having loss tangent tan δc being smaller than the loss tangent tan δb.

Tire

The present invention is concerned with a tire including a tire casing having a rolling resistance coefficient according to the coastdown method of JIS D4234 of not exceeding 4.0, in which both low rolling resistance and durability of the tire can be made compatible with each other.

HIGH STRENGTH RUBBER COMPOSITION

A rubber composition comprises at least one resin based on: (A1) at least one aromatic compound resulting from the reaction between a reactant of formula (α): 127.-. (canceled)30. The rubber composition according to claim 28 , wherein the aromatic compound (a) is selected from the group consisting of 5-(hydroxymethyl)furfural claim 28 , 2 claim 28 ,5-di(hydroxymethyl)furan and mixtures thereof.31. The rubber composition according to claim 28 , wherein the aromatic ring of the aromatic polyphenol bears three hydroxyl functional groups in the meta position with respect to one another.32. The rubber composition according to claim 28 , wherein the two positions ortho to each hydroxyl functional group on the aromatic ring of the aromatic polyphenol are unsubstituted.33. The rubber composition according to claim 28 , wherein at least one of the aromatic rings of the aromatic polyphenol bears three hydroxyl functional groups in the meta position with respect to one another.34. The rubber composition according to claim 28 , wherein each aromatic ring of the aromatic polyphenol is a benzene ring.35. The rubber composition according to claim 28 , wherein the aromatic polyphenol is selected from the group consisting of resorcinol claim 28 , phloroglucinol claim 28 , 2 claim 28 ,2′ claim 28 ,4 claim 28 ,4′-tetrahydroxydiphenyl sulfide claim 28 , 2 claim 28 ,2′ claim 28 ,4 claim 28 ,4′-tetrahydroxybenzophenone and mixtures thereof.36. The rubber composition according to claim 28 , wherein the aromatic polyphenol is a pre-condensed resin based on:at least one polyphenol comprising at least one aromatic ring bearing at least two hydroxyl functional groups in the meta position with respect to one another, the two positions ortho to at least one of the hydroxyl functional groups being unsubstituted, andat least one compound capable of reacting with the polyphenol comprising at least one aldehyde functional group and/or one compound capable of reacting with the polyphenol comprising ...

HEAVY DUTY TIRE

The present invention provides a heavy duty tire, comprising: a carcass; a belt constituted of a circumferential belt including at least one circumferential belt layer and a slant belt including at least one slanted belt layer, each belt layer being made of cords coated with belt coating rubber; and a cushion rubber provided on the outer side in the tire width direction of the belt layers, characterized in that: the cushion rubber has a belt adjacent portion adjacent to the belt and a main body portion adjacent to the belt adjacent portion; and provided that E1′, E2′ and E3′ represent storage modulus values of the belt adjacent portion of the cushion rubber, the main body portion of the cushion rubber, and the belt coating rubber, respectively, E1′, E2′ and E3′ satisfy relationship E2′ Подробнее

RUBBER COMPOSITION FOR CUSHION RUBBER FOR REHABILITATED TIRES, AND A REHABILITATED TIRE USING THE SAME

The present invention provides a rubber composition for cushion rubber for rehabilitated tire having a vulcanized speed being fast and a scorch resistance property being superior while being adaptable to environmental issues, as well as provides a rehabilitated tire having a durability. This rehabilitated tire may include a rubber composition for cushion rubber for rehabilitated tire which includes at least a rubber component comprising a diene rubber, di-2-benzothiazolyl disulfide and 1,3-diphenylguanidine, and a cushion rubber formed by vulcanizing the rubber composition for cushion rubber for rehabilitated tire. 1: A rubber composition for cushion rubber for rehabilitated tires , comprising: a rubber component comprising a diene rubber , di-2-benzothiazolyl disulfide and 1 ,3-diphenylguanidine.2: The rubber composition for cushion rubber for rehabilitated tires according to claim 1 , wherein assuming that a blending amount of the 1 claim 1 ,3-diphenylguanidine is W(D) and a blending amount of the di-2-benzothiazolyl disulfide is W(DM) claim 1 , the rubber composition for a cushion rubber for a rehabilitated tire satisfy 0.2≤W(D)/W (DM)≤2.0.3: A rehabilitated tire claim 1 , comprising a cushion rubber formed by vulcanizing the rubber composition for cushion rubber for rehabilitated tire according to .4: A rehabilitated tire claim 2 , comprising a cushion rubber formed by vulcanizing the rubber composition for cushion rubber for rehabilitated tire according to . The present invention relates to a rubber composition for cushion rubber for rehabilitated tires, as well as a rehabilitated tire.As a method to remake a used tire, there is known a method in which a base tire is formed by grinding the tread rubber of a used tire, followed by displacing a cushion rubber on the base tire, followed by attaching a pre-cured tread to the cushion rubber, followed by heating the base tire equipped with the pre-cured tread by a vulcanization can. The cushion rubber can function to ...

Aminosilane Initiators And Functionalized Polymers Prepared Therefrom

Metallated aminosilane compounds for use as functional initiators in anionic polymerizations and processes for producing an aminosilane-functionalized polymer using the metallated aminosilane compounds to initiate anionic polymerization of at least one type of anionically polymerizable monomer. Preferred use of the metallated aminosilane compounds results in rubber compositions for use in tires comprising an aminosilane functionalized polymer. 2. The metallated aminosilane compound of claim 2 , where the at least one metallating agent is selected from the group consisting of hydrocarbyl lithium compounds claim 2 , hydrocarbyl sodium compounds claim 2 , hydrocarbyl potassium compounds claim 2 , and hydrocarbyl magnesium compounds claim 2 , and combinations thereof.3. The metallated aminosilane compound of claim 1 , where the at least one metallating agent comprises a first component and a second component claim 1 , where the first component is a Lewis base and the second component is selected from the group consisting of hydrocarbyl lithium compounds claim 1 , hydrocarbyl sodium compounds claim 1 , hydrocarbyl potassium compounds claim 1 , hydrocarbyl magnesium compounds claim 1 , and combinations thereof.4. The metallated aminosilane compound of claim 1 , where the at least one metallating agent comprises a first component and a second component claim 1 , where the first component is selected from the group consisting of alkali metal alkoxide claim 1 , alkali metal arylsulfonate claim 1 , and combinations thereof claim 1 , and where the second component is selected from the group consisting of hydrocarbyl lithium compounds claim 1 , hydrocarbyl sodium compounds claim 1 , hydrocarbyl potassium compounds claim 1 , hydrocarbyl magnesium compounds claim 1 , and combinations thereof.5. The metallated aminosilane compound of claim 1 , where the at least one alkylaminosilane compound is selected from the group consisting of bis(dialkylamino)phenylmethylsilane claim 1 , bis ...

HIGH PERFORMANCE TYRE FOR VEHICLE WHEELS

A tyre for vehicle wheels, includes a carcass structure including at least one carcass layer, a belt structure applied in a radially outer position with respect to the carcass structure, a tread band applied in a radially outer position with respect to the belt structure, and at least one layer of elastomeric material applied in a radially inner position with respect to the tread band; in which the at least one elastomeric material layer includes inorganic fibres of magnesium and/or aluminium silicates of nanometric dimensions. 118-. (canceled)19. A tire for vehicle wheels comprising:a carcass structure comprising at least one carcass layer;a belt structure applied in a radially outer position with respect to said carcass structure;a tread band applied in a radially outer position with respect to said belt structure; andat least one elastomeric material layer disposed between said tread band and said belt structure,wherein said elastomeric material layer extends over a surface substantially corresponding to a development surface of said belt structure or over a portion of a surface substantially corresponding to a development surface of said belt structure, andwherein said elastomeric material comprises magnesium and/or aluminium silicates inorganic fibres, said fibres having nanometric dimensions.20. The tire for vehicle wheels according to claim 19 , wherein said elastomeric material comprises a diene elastomeric polymer.21. The tire for vehicle wheels according to claim 19 , wherein said elastomeric material comprises magnesium and/or aluminium silicates inorganic fibres having a diameter of less than 500 nm.22. The tire for vehicle wheels according to claim 19 , wherein said elastomeric material comprises magnesium and/or aluminium silicates inorganic fibres having a diameter of less than 100 nm.23. The tire for vehicle wheels according to claim 22 , wherein said elastomeric material comprises magnesium and/or aluminium silicates inorganic fibres having a ...

TIRE COMPRISING ELASTOMERIC MIXTURES WITH A LOW LEVEL OF SULFUR

The tire has a radial carcass reinforcement and a crown reinforcement containing at least two working crown layers of reinforcing elements. The working crown layers are covered radially with a tread that is joined to two beads via two sidewalls. The relative density of sulfur bridges measured according to the equilibrium swelling method is less than 5% in at least 30% of the elastomer compounds present in the surface of at least one zone S in a meridian plane. The elastomer compounds are compositions based on at least one diene elastomer selected from the group of diene elastomers consisting of polybutadienes (abbreviated to “BRs”), synthetic polyisoprenes (IRs), natural rubber (NR), isoprene copolymers, butadiene copolymers with the exception of butadiene-nitrile copolymers (NBRs), apart from diene elastomers bearing carboxyl functions, and mixtures of these diene elastomers. 1. A tire having a radial carcass reinforcement , consisting of at least one layer of reinforcing elements , said tire comprising a crown reinforcement containing at least two working crown layers of reinforcing elements , which is itself covered radially with a tread , said tread being joined to two beads via two sidewalls , wherein the relative density of sulfur bridges measured according to the equilibrium swelling method is less than 5% in at least 30% of the elastomer compounds present in the surface of at least one zone S in a meridian plane and wherein said at least one zone S is defined in a meridian plane by the continuous cubic spline with a curvature that passes through four points such as:a first point B, defined by the orthogonal projection onto a reinforcing element of the carcass reinforcement of the point A forming the end of a reinforcing element of the axially widest working crown layer,a second point D, such that the segment AD is equal to ⅓ of the segment AC, the point C being the intersection of the outer surface of the tread and of the straight line passing through the ...

Tire Comprising A Layer Of Circumferential Reinforcement Elements

Tire comprising a crown reinforcement formed of two working crown layers having unequal axial widths, layer C of rubber compound between ends of the working crown layers, layer S of polymer compound in contact with at least one working crown layer and in contact with the carcass reinforcement and the crown reinforcement comprising a layer of circumferential reinforcing elements arranged radially between two working crown layers. Distance d between the end of the axially narrowest working layer and the working layer separated from the axially narrowest working layer by the layer C is 1.1ø Подробнее

Tire Comprising A Layer Of Circumferential Reinforcement Elements

The invention relates to a tire comprising a crown reinforcement formed of at least two working crown layers each formed of reinforcing elements inserted between two skim layers of rubber compound, a first layer S of polymer compound being in contact with at least one working crown layer and in contact with the carcass reinforcement and the crown reinforcement comprising at least one layer of circumferential reinforcing elements. In accordance with the invention, the elastic modulus under tension at 10% elongation of at least one skim layer of at least one working crown layer is less than 8.5 MPa, the maximum value of tan(δ), denoted tan(δ)max of the said at least one skim layer of at least one working crown layer is less than 0.100, and the complex dynamic shear modulus G*, measured at 10% and 60° C. on the return cycle, of the said first layer S of polymer compound is greater than 1.35 MPa.

TIRE COMPRISING A LAYER OF CIRCUMFERENTIAL REINFORCING ELEMENTS

A tire comprising a crown reinforcement formed from at least two working crown layers of reinforcing elements, a layer C of rubber mixture being placed between at least the ends of said at least two working crown layers, the crown reinforcement including at least one layer of circumferential reinforcing elements wherein the tensile modulus of elasticity at 10% elongation of the layer C is greater than 9 MPa and the maximum value of tan(δ), denoted tan(δ)max, of the layer C is less than 0.100. 1. A tire with a radial carcass reinforcement , comprising: at least two working crown layers of reinforcing elements, with one layer crossing the next at angles in the range from 10° to 45° with the circumferential direction,', 'a layer C of rubber mixture placed between at least the ends of said at least two working crown layers,', 'at least one layer of circumferential reinforcing elements,, 'a crown reinforcement formed from{'sub': 'max', 'wherein the tensile modulus of elasticity at 10% elongation of the layer C is greater than 9 MPa and wherein the maximum value of tan(δ), denoted tan(δ), of the layer C is less than 0.100; and'}a tread radially capping the crown reinforcement and joined to two beads via two sidewalls.2. The tire according to claim 1 , wherein the layer C of rubber mixture is an elastomeric mixture based on:natural rubber or synthetic polyisoprene with a majority of cis-1,4 chains, and optionally at least one other diene elastomer, wherein the natural rubber or the synthetic polyisoprene in case of blending is present in a majority proportion relative to the proportion of the other diene elastomer or elastomers used, and [{'sup': '2', 'a) either carbon black with a BET specific surface of less than 60 m/g, regardless of its structural index, used in a proportion of 40 to 100 phr,'}, {'sup': '2', 'b) or a white filler of the silica and/or alumina type having SiOH and/or AlOH surface functions, selected from the group consisting of precipitated or pyrogenic ...

POLYBENZOXAZINE THAT CAN BE USED FOR COATING METAL AND FOR THE BONDING OF SAME TO RUBBER

Polybenzoxazine comprises repeat units which comprise at least one unit corresponding to the formulae (I) or (II): 112.-. (canceled)1412. The polybenzoxazine according to claim , wherein Z , Z , or both Zand Z , which are identical or different , represent an aliphatic group comprising from 1 to 20 carbon atoms or a cycloaliphatic group comprising from 3 to 20 carbon atoms , and optionally at least one heteroatom chosen from O , S , N and P.15. The polybenzoxazine according to claim 14 , wherein Z claim 14 , Z claim 14 , or both Zand Z claim 14 , which are identical or different claim 14 , represent an alkylene group comprising from 1 to 20 carbon atoms claim 14 , and optionally at least one heteroatom chosen from O claim 14 , S claim 14 , N and P.16. The polybenzoxazine according to claim 13 , wherein Z claim 13 , Z claim 13 , or both Zand Z claim 13 , which are identical or different claim 13 , represent an aromatic group comprising from 6 to 30 carbon atoms claim 13 , and optionally at least one heteroatom chosen from O claim 13 , S claim 13 , N and P.17. The polybenzoxazine according to claim 13 , wherein Z claim 13 , Z claim 13 , or both Zand Z claim 13 , which are identical or different claim 13 , comprise a group selected from the group consisting of —(CH)— claim 13 , —CH-Ph-CH— claim 13 , —(CH—CH—X)— and —(CH(CH)—CH—X)— claim 13 , andwherein x and n are integers from 1 to 20, Ph represents a benzene ring, and X represents at least one heteroatom chosen from oxygen, sulfur, nitrogen and phosphorus.18. A coating for a substrate claim 13 , at least the surface of which is at least partially metallic claim 13 , comprising a polybenzoxazine according to .19. A method of bonding metal to rubber comprising:{'claim-ref': {'@idref': 'CLM-00013', 'claim 13'}, 'coating a substrate, at least the surface of which is at least partially metallic, with a substrate coating comprising a polybenzoxazine according to .'}20. A substrate claim 13 , at least the surface of which ...

Pneumatic tire and run-flat tire

Provided is a pneumatic tire including a sidewall that has a good balance of excellent handling stability, rolling resistance, and durability and further has excellent flex crack growth resistance. The sidewall is formed from a modified cellulose fiber-containing rubber composition that is allowed to simultaneously achieve excellent rigidity, excellent tensile properties, and low energy loss by improving the dispersibility of the cellulose fiber in rubber. The present invention relates to a pneumatic tire including a sidewall formed from a modified cellulose fiber-containing rubber composition, the modified cellulose fiber-containing rubber composition containing a modified cellulose fiber (A) obtained by adding a C15 or higher cyclic polybasic acid anhydride (a) containing a hydrophobic group to a cellulose fiber through esterification, a dispersing polymer (B) having a softening point of 135° C. or lower, and a rubber component (C).

The carcass reinforcement cable comprising low-permeability and the tire of fabric silk be combined with carcass reinforcement

本发明涉及具有径向胎体增强件的轮胎，所述径向胎体增强件由金属增强件层的至少一个层组成，所述轮胎包括至少一个胎冠增强件，所述胎冠增强件依次在径向上被胎面覆盖，所述胎面经由两个胎侧结合至两个胎圈。根据本发明，胎体增强件的至少一个层的金属增强元件为帘线，所述帘线在所谓的渗透性测试中具有小于20cm 3 /min的流量，至少一个胎体增强件层在至少一个表面上具有织物丝线，至少地，在轴向上与至少径向最内胎冠增强件层的端部接合并且与胎体增强件接合的弹性体混合物制得的层为弹性体混合物，所述弹性体混合物包含天然橡胶或合成聚异戊二烯和赋予高内聚力的增强填料。

TIRE FOR CIVIL ENGINEERING VEHICLES WITH LOW ENVIRONMENTAL FOOTPRINT

Cette invention se propose d’améliorer l’empreinte environnementale d’un pneumatique pour véhicule du génie civil. Pour cela, les mélanges élastomériques issus de ressources non fossiles représentent un taux massique supérieur ou égal à 65 % de la masse totale des mélanges du pneumatique; au moins 75 % de la masse totale des mélanges du pneumatique est constitué de mélanges élastomériques qui ont chacun une perte viscoélastique, mesurée par tan (δ), inférieure ou égale à 0,065 ; et une résistivité électrique supérieure ou égale 1E+10 Ώ.cm . Figure pour l’abrégé: Fig.1

TIRE FOR CIVIL ENGINEERING VEHICLES WITH LOW ENVIRONMENTAL FOOTPRINT

Cette invention se propose d’améliorer l’empreinte environnementale d’un pneumatique pour véhicule du génie civil. Pour cela, les mélanges élastomériques issus de ressources non fossiles représentent un taux massique supérieur ou égal à 65 % de la masse totale des mélanges du pneumatique; au moins 75 % de la masse totale des mélanges du pneumatique est constitué de mélanges élastomériques qui ont chacun une perte viscoélastique, mesurée par tan (δ), inférieure ou égale à 0,065 ; et une résistivité électrique supérieure ou égale 1E+10 Ώ.cm . Figure pour l’abrégé: Fig.1 This invention proposes to improve the environmental footprint of a tire for a civil engineering vehicle. For this, the elastomeric mixtures obtained from non-fossil resources represent a mass rate greater than or equal to 65% of the total mass of the mixtures of the tire; at least 75% of the total mass of the tire mixtures consists of elastomeric mixtures which each have a viscoelastic loss, measured by tan (δ), less than or equal to 0.065; and an electrical resistivity greater than or equal to 1E + 10 Ώ.cm. Figure for the abstract: Fig. 1

TIRE HAVING IMPROVED ROLLING RESISTANCE AND IMPROVED IMPACT RESISTANCE

L’invention concerne un pneumatique comprenant une armature de sommet formée d'au moins deux couches de sommet de travail d'éléments de renforcement, une couche C de mélange caoutchouteux étant disposée entre au moins les extrémités desdites au moins deux couches de sommet de travail. Selon l’invention, la valeur maximale de tan(δ), noté tan(δ)max, de la couche C est inférieure à 0.055 et l’allongement à rupture de la couche C est supérieur à 300 %. Figure pour l’abrégé : Fig 1 The invention relates to a tire comprising a crown reinforcement formed of at least two working crown layers of reinforcing elements, a layer C of rubber mixture being disposed between at least the ends of said at least two working crown layers. . According to the invention, the maximum value of tan (δ), denoted tan (δ) max, of layer C is less than 0.055 and the elongation at break of layer C is greater than 300%. Figure for the abstract: Fig 1

TIRE WITH IMPROVED ROLLING RESISTANCE AND IMPROVED IMPACT RESISTANCE PROPERTIES

L’invention concerne un pneumatique comprenant une armature de sommet formée d'au moins deux couches de sommet de travail d'éléments de renforcement, une couche C de mélange caoutchouteux étant disposée entre au moins les extrémités desdites au moins deux couches de sommet de travail. Selon l’invention, la valeur maximale de tan(δ), noté tan(δ)max, de la couche C est inférieure à 0.055 et l’allongement à rupture de la couche C est supérieur à 300 %. Figure pour l’abrégé : Fig 1 The invention relates to a tire comprising a crown reinforcement formed of at least two working crown layers of reinforcing elements, a layer C of rubber compound being disposed between at least the ends of said at least two working crown layers . According to the invention, the maximum value of tan(δ), denoted tan(δ)max, of layer C is less than 0.055 and the elongation at break of layer C is greater than 300%. Figure for the abstract: Fig 1

aminosilane initiators and functionalized polymers prepared from them

iniciadores de aminossilano e polímeros funcionalizados preparados a partir dos mesmos. compostos de aminossilano metalizados para uso como iniciadores funcionais em polimerizações aniônicas e processos para a produção de um polímero de aminossilano funcionalizado utilizando os compostos de aminossilano metalizados para iniciar a polimerização aniônica de pelo menos um tipo de monômero anionicamente polimerizável. uso preferido dos compostos de aminossilano metalizados resulta em composições de borracha para utilização em pneus compreendendo um polímeros de aminossilano funcionalizado. aminosilane initiators and functionalized polymers prepared therefrom. Metallized aminosilane compounds for use as functional initiators in anionic polymerizations and processes for producing a functionalized aminosilane polymer using metallized aminosilane compounds to initiate anionic polymerization of at least one type of anionically polymerizable monomer. Preferred use of the metallized aminosilane compounds results in rubber compositions for use on tires comprising a functionalized aminosilane polymers.

Urethan solid tire and method for manufacturing thereof

PURPOSE: A urethane solid tire for carrying vehicles is provided to prevent generation of carbon dust or tire track by excluding black carbon. CONSTITUTION: A urethane solid tire for carrying vehicles(100) comprises a tread portion(110) and a cushion portion(120). The tread portion has predetermined patterned protruding portions(111) on a ground plane of the tire. The cushion portion is positioned between wheel rims(130). The tread portion and the cushion portion use urethane main material which uses polyurethane resin as a main component. 5-15 wt5 of zinc oxide single crystalline (ZnO) is added based on the urethane main materials. The cushion portion has ventilation holes(121).

Airless tire

An airless tire includes a tread ring having a cylindrical form and a ground contact surface, a hub positioned on radial direction inner side of the tread ring and fonned to be fixed to an axle, and a spoke structure connecting the tread ring and hub. The tread ring includes a tread rubber layer forming the ground contact surface, and a reinforcing rubber layer formed on tire radial direction inner side of the tread layer, and the reinforcing layer is formed of a rubber material obtained by co-crosslinking a rubber composition including a rubber component, an α, β-unsaturated carboxylic acid metal salt and a peroxide such that the metal salt has amount in range of 10 to 80 parts by weight with respect to 100 parts by mass of the rubber component and the rubber component has content rate of butadiene rubber in range of 10 to 100% by mass.

Preparation method of modified rubber, modified rubber and bulletproof and puncture-proof tire

本发明提供一种改性橡胶的制备方法及改性橡胶，通过紫外光照射高性能短纤维以在高性能短纤维中引入活性基团，再采用偶联剂对该高性能短纤维进行改性，增加了该高性能短纤维与橡胶基体的相容性，最后利用十二烷基硫酸钠的电荷排斥作用，有效避免了高性能短纤维在橡胶基体中团聚，有利于制得改性橡胶。本发明提供的的改性橡胶及该改性橡胶制得的防弹防刺穿轮胎，该防弹防刺穿轮胎的缓冲层采用该改性橡胶，该防弹防刺穿轮胎的胎面、带束层和气密层中的至少一层使用该改性橡胶，且防弹防刺穿轮胎的帘布层采用加捻的高性能长纤维编织而成，使得该防弹防刺穿轮胎不仅具有防弹防刺穿功能，而且重量轻便、行驶平稳。

Tyre comprising a layer of circumferential reinforcement elements

Tyre comprising a crown framework formed from at least two working layers having unequal axial widths, one layer C of a rubber mixture being disposed between at least the ends of said working layers, a second layer S of polymer mixture being in contact with at least one working layer and the carcass framework, and the crown framework comprising at least one layer of circumferential reinforcement elements radially arranged between the two working layers. The distance between the end of the axially narrowest working layer and the other working layer C is such that 1.1∅< d < 2.2∅, ∅ being the diameter of the reinforcement elements of said circumferential layer; in a meridian plane, the thickness of layer C is essentially constant, said second layer S consists of a filled elastomer mixture having a macro dispersion score Z ≥ 65 and a maximum value of tan(δ), denoted tan(δ)max, ≺ 0.100 and the complex dynamic shear modulus G* thereof, measured at 10% and 60 °C on the return cycle, is ≻ 1.35 MPa.

Rubber composition comprising an epoxide resin and a specific amine hardener

A rubber composition exhibiting an improved processability/stiffness compromise is based on at least a diene elastomer, a reinforcing filler, a crosslinking system, between 1 and 30 parts by weight per hundred parts by weight of elastomer, phr, of an epoxy resin and between 1 and 15 phr of a specific amine-comprising hardener comprising in particular at least two primary amine functional groups located on at least one six-membered aromatic ring and at least two Ri radicals, which are identical or different, selected from the group consisting of linear or branched C1-C6 alkyl radicals, halogens, and ethers, tertiary amines, thioethers, ketones, esters and amides, substituted by linear or branched C1-C6 alkyl radicals, the said ring not comprising a hydrogen atom located in the ortho position with respect to the primary amine functional groups.

Heavy load pneumatic radial tire

Provided is heavy load pneumatic radial tire capable of providing excellent durability by effectively preventing progression of fracture to low heat generation-type base rubber that contributes to improve high-speed durability. Heavy load pneumatic radial tire according to the present invention includes: tread rubber 6 having laminated structure of cap rubber 5 and base rubber 4; and four or more belt layers 3a-3e disposed radially inward of tread rubber 6. A radially outer side of a width direction side edge of at least one of radially outermost belt layer 3e and widest-width belt layer 3c is covered by reinforcing rubber layer 7 that terminates on a radially inner side of tread rubber 6 without reaching tire equatorial plane E. Relative relation between reinforcing rubber constituting reinforcing rubber layer 7 and base rubber 4 in terms of modulus of rebound elasticity satisfies the condition: reinforcing rubber < base rubber 4.

Rubber composition and vehicle tyre

HIGH-PERFORMANCE TIRE FOR VEHICLE WHEELS

Tyre (100) for vehicle wheels, comprising a carcass structure comprising at least one carcass layer (101), a belt structure (106) applied in a radially outer position with respect to the carcass structure, a tread band (109) applied in a radially outer position with respect to said belt structure, and at least one layer of elastomeric material (111) applied in a radially inner position with respect to said tread band; in which said at least one elastomeric material layer comprises inorganic fibres of magnesium and/or aluminium silicates of nanometric dimensions.

Tyre for heavy load vehicle wheels

A tyre for heavy load vehicles comprising an insert interposed between a belt structure and a tread band, at least at each end of the belt structure, and made by vulcanising an elastomeric composition comprising a diene rubber and at least one reinforcing filler, wherein the reinforcing filler comprises almost exclusively silica.

Construction plant vehicle tyre with low environmental footprint

This invention proposes to improve the environmental footprint of a construction plant vehicle tyre. For this, the elastomeric compounds derived from non-fossil resources represent a weight content of greater than or equal to 65% of the total weight of the compounds of the tyre, at least 75% of the total weight of the compounds of the tyre consists of elastomeric compounds which each have a viscoelastic loss, measured by tan(δ), of less than or equal to 0.065; and an electrical resistivity of greater than or equal to 1E+10 Ώ.cm.

Tyre having improved dynamic properties

本发明涉及一种轮胎，所述轮胎包括胎冠帘布层，所述胎冠帘布层由增强元件的至少两个工作胎冠层形成，所述增强元件从一层至另一层交叉并且与周向方向形成在10°至45°之间的角度。聚合物共混物的第一层S沿轴向延伸至少直至胎面的轴向端部并且与至少一个工作帘布层接触并且与胎体帘布层接触。第一层S由经填充的弹性体共混物制成，所述弹性体共混物具有大于或等于65的宏观分散系数Z和用tan(δ)max表示的小于0.100的最大tan(δ)值，并且所述第一层S在10％和60℃下在返回循环中测得的复数动态剪切模量G*大于1.35MPa。

Method for preparing modified rubber, modified rubber, and bulletproof and puncture resistant tire

Provided is a method for preparing a modified rubber which includes: introducing a reactive group into a high-performance short fiber by irritating the short fiber by ultraviolet light, modifying the short fiber by a coupling agent to increase the compatibility of the short fiber with a rubber matrix, and utilizing the charge repulsion of sodium dodecylbenzenesulfonate to effectively avoid the agglomeration of the short fiber in the rubber matrix. Further provided are a modified rubber prepared by the method and a bulletproof and puncture resistant tire prepared by the modified rubber. In the bulletproof and puncture resistant tire, a buffer layer is made by the modified rubber, and at least one of a tread, a belt ply and an inner liner is made by the modified rubber, and a cord ply is woven by twisted high-performance long fibers.

Rubber composition for tire belt topping and tire manufactured by using the same

본 발명은 타이어 벨트 토핑용 고무 조성물 및 이를 이용하여 제조된 타이어에 관한 것으로서, 원료고무 100 중량부, 카본블랙 30 내지 80 중량부, 실리카 1 내지 20 중량부, 그리고 코발트 아세틸아세토네이트(cobalt acetylacetonate) 0.1 내지 10 중량부를 포함한다. 상기 벨트 토핑용 고무 조성물은 모듈러스를 향상시키고 피로 성능에도 유리하다. The present invention relates to a rubber composition for topping a tire belt and a tire produced using the rubber composition. The rubber composition comprises 100 parts by weight of raw rubber, 30 to 80 parts by weight of carbon black, 1 to 20 parts by weight of silica and cobalt acetylacetonate, 0.1 to 10 parts by weight. The rubber composition for belt topping improves modulus and is also advantageous in fatigue performance.

TIRE HAVING IMPROVED ROLLING RESISTANCE AND IMPROVED IMPACT RESISTANCE

L’invention concerne un pneumatique comprenant une armature de sommet formée d'au moins deux couches de sommet de travail d'éléments de renforcement, une couche C de mélange caoutchouteux étant disposée entre au moins les extrémités desdites au moins deux couches de sommet de travail. Selon l’invention, la valeur maximale de tan(δ), noté tan(δ)max, de la couche C est inférieure à 0.055 et l’allongement à rupture de la couche C est supérieur à 300 %. Figure pour l’abrégé : Fig 1 The invention relates to a tire comprising a crown reinforcement formed of at least two working crown layers of reinforcing elements, a layer C of rubber mixture being disposed between at least the ends of said at least two working crown layers. . According to the invention, the maximum value of tan (δ), denoted tan (δ) max, of layer C is less than 0.055 and the elongation at break of layer C is greater than 300%. Figure for the abstract: Fig 1

Rubber composition

Method for preparing modified rubber, modified rubber, and bulletproof and puncture resistant tire

Provided is a method for preparing a modified rubber which includes: introducing a reactive group into a high-performance short fiber by irritating the short fiber by ultraviolet light, modifying the short fiber by a coupling agent to increase the compatibility of the short fiber with a rubber matrix, and utilizing the charge repulsion of sodium dodecylbenzenesulfonate to effectively avoid the agglomeration of the short fiber in the rubber matrix. Further provided are a modified rubber prepared by the method and a bulletproof and puncture resistant tire prepared by the modified rubber. In the bulletproof and puncture resistant tire, a buffer layer is made by the modified rubber, and at least one of a tread, a belt ply and an inner liner is made by the modified rubber, and a cord ply is woven by twisted high-performance long fibers.

Pneumatic tire

PNEUMATIC COMPRISING A BUFFER ZONE BETWEEN THE CARCASE FRAME AND THE TOP FRAME

L'invention concerne un pneumatique à armature de carcasse radiale, constituée d'au moins une couche d'éléments de renforcement métalliques, ledit pneumatique comprenant une armature de sommet, elle-même coiffée radialement d'une bande de roulement, ladite bande de roulement étant réunie à deux bourrelets par l'intermédiaire de deux flancs, ledit pneumatique comprenant une première couche de mélange polymérique radialement entre l'armature de carcasse et la couche d'éléments de renforcement radialement la plus intérieure de l'armature de sommet. Selon l'invention, ladite une première couche de mélange polymérique constitue une zone tampon prévue pour piéger l'oxygène extérieur à ladite première couche, la largeur axiale de ladite première couche étant au moins égale à 70 % de la largeur de la couche d'éléments de renforcement radialement la plus intérieure de l'armature de sommet. The invention relates to a tire with a radial carcass reinforcement, consisting of at least one layer of metal reinforcing elements, said tire comprising a crown reinforcement, itself capped radially with a tread, said tread being joined to two beads by means of two flanks, said tire comprising a first layer of polymeric mixture radially between the carcass reinforcement and the radially innermost reinforcing element layer of the crown reinforcement. According to the invention, said first layer of polymeric mixture constitutes a buffer zone intended to trap the oxygen outside said first layer, the axial width of said first layer being at least equal to 70% of the width of the layer of radially reinforcing elements the innermost of the crown reinforcement.

Polybenzoxazine that can be used for coating metal and for the bonding of same to rubber

The invention relates to polybenzoxazine comprising repeating units comprising at least one motif of formula (I) or (II) in which Z 1 and Z 2 are the same or different and represent an at least divalent, aliphatic, cycloaliphatic or aromatic linking group comprising at least one carbon atom and optionally at least one heteroatom selected from O, S, N and P. The invention also relates to the use of such a polybenzoxazine as a layer that can adhere to metal, particularly for bonding a metal substrate, particularly consisting of carbon steel, to a rubber.

Rubber composition for band topping, rubber composition for breaker edge strip, and pneumatic tire

本发明提供能够抑制BEL的产生即耐久性优异的束带层贴胶用橡胶组合物或者缓冲层边胶用橡胶组合物及具有使用这些橡胶组合物制造的束带层以及/或者缓冲层边胶的充气轮胎。涉及的束带层贴胶用橡胶组合物，相对于含有50质量％以上的异戊二烯系橡胶的橡胶成分100质量份，还含有规定量的硫、规定量的间苯二酚树脂等化合物、规定量的六甲氧基羟甲基三聚氰胺的部分缩合物等化合物、规定量的二氧化硅、规定量的氮吸附比表面积为38～125m 2 /g的炭黑，缓冲层边胶用橡胶组合物中，相对于含有50质量％以上的异戊二烯系橡胶的橡胶成分100质量份，还含有规定量的硫、规定量的间苯二酚树脂等化合物、规定量的六甲氧基羟甲基三聚氰胺的部分缩合物等化合物、规定量的有机酸钴的组合物。

Rfid module, and pneumatic tire with same embedded therein

Provided are: an RFID module of which the durability and communication characteristics can be improved while maintaining the shape of a cover layer; and a pneumatic tire with the same embedded therein. The present invention comprises: an IC substrate 21 for storing data; an antenna 22 for transmitting and receiving data; and a cover layer 23 for covering the antenna 22, wherein the cover layer 23 contains calcium carbonate, and the relative permittivity of the cover layer 23 is 7 or lower.

Rubber composition comprising an epoxy resin and a specific amine hardener

本发明涉及一种具有改进的加工性/刚性折衷的橡胶组合物，所述组合物由至少二烯弹性体、增强填料、交联体系、在1和30份/百份橡胶(phr)之间的环氧树脂和在1和15phr之间的特定胺硬化剂制成，特别地，所述特定胺硬化剂包含至少两个位于至少一个六原子芳环体系上的伯胺官能团和至少两个相同或不同的Ri基团，所述Ri基团选自C 1 ‑C 6 直链或支链烷基、卤素和由C 1 ‑C 6 直链或支链烷基取代的醚、叔胺、硫醚、酮、酯和酰胺，所述环体系不包含位于伯胺官能团邻位的氢原子。

Rubber Composition For Tire, And Pneumatic Tire

本发明提供一种使用橡胶组合物的充气轮胎，所述橡胶组合物可保持低滚动阻力、防止轮胎行驶期间的静电积累、抑制轮胎电阻随时间的增加并且改善耐久性。本发明涉及一种橡胶组合物，其包括：含有两种以上二烯橡胶的橡胶组分；氮吸附比表面积为400m 2 /g以上的炭黑，相对于每100质量份橡胶组分，所述炭黑的量为5~30质量份，其特征在于，所述橡胶组合物具有90%以上的炭黑分散度，所述炭黑分散度基于JIS K6812“用于评估聚烯烃管材、配件和混合物中的颜料或炭黑的分散度的方法”，通过对团聚物计数来确定。

Include the tire of circumferential reinforcing element layer

本发明涉及一种轮胎，其包括胎冠增强件，所述胎冠增强件由至少两个工作胎冠层形成，所述工作胎冠层由插入在橡胶配混物的两个衬垫层之间的增强元件形成，聚合物配混物的第一层S与至少一个工作层接触，并与胎体增强件接触，胎冠增强件包括至少一个周向增强元件的层。工作胎冠层的衬垫层在10％伸长的拉伸弹性模量小于8.5MPa，所述工作层的衬垫层的表示为tan(δ) max 的tan(δ)的最大值<0.100，而层S在10％和60℃下在返回循环中测得的复合动态剪切模量G*>1.35MPa。

Tyre comprising a crown reinforcement

Tyre having improved dynamic properties

Pneumatic tire

本发明提供一种充气轮胎。技术问题：在胎面部的轮胎内周面安装有消声装置的充气轮胎中，抑制轮辋装配性变差，并且提高空腔共鸣音的降低效果。解决方案：充气轮胎(10)遍及胎面部(11)的轮胎内周面的整周安装有沿轮胎周向延伸的消声装置(20)。消声装置(20)具有安装于胎面部(11)的轮胎内周面的多孔质部(21)、以及层叠于多孔质部(21)的轮胎径向内侧并且面向轮胎内腔(3)的薄膜部(22)。薄膜部(22)是非多孔质材料，形成有多个贯穿孔(22a)。

Sulfur-crosslinkable rubber mixture

Pneumatic tire

Provided is a pneumatic tire excellent in durability. The present invention relates to a pneumatic tire including a breaker cushion and a breaker adjacent to the breaker cushion, wherein the breaker cushion is formed from a rubber composition for a breaker cushion, which contains a specific amount of an isoprene-based rubber and has a specific net sulfur content derived from crosslinking agents; and the breaker includes breaker cords topped with a rubber composition for a breaker cord topping, wherein a rubber vulcanizate obtained by vulcanizing the rubber composition for a breaker cushion alone at 170°C for 12 minutes, has an elongation at break of a specific value or more; and the net sulfur content derived from crosslinking agents in the rubber composition for a breaker cushion and the net sulfur content derived from crosslinking agents in the rubber composition for a breaker cord topping satisfy a specific relation.

Preparation procedure of modified rubber, modified rubber and bulletproof and puncture resistant tire

Un procedimiento de preparación de un caucho modificado, caracterizado porque comprende las etapas de: irradiar fibras cortas de alto rendimiento mediante luz ultravioleta; añadir las fibras cortas de alto rendimiento irradiadas al etanol y agitar para preparar una suspensión de fibras uniformemente dispersa; añadir un agente de acoplamiento a la suspensión de fibras preparada; ajustar un valor de pH de la suspensión de fibras a un intervalo de 8 a 9, y esperar de 2 a 4 horas a temperatura ambiente; añadir dodecilbencenosulfonato de sodio en la suspensión de fibras y esperar de 1 a 2 horas para preparar una solución de reacción; filtrar la solución de reacción a presión reducida para eliminar el líquido de la solución de reacción y preparar una suspensión de fibra modificada; añadir la suspensión de fibra modificada a una carga inorgánica para preparar una mezcla de suspensión de fibra modificada, comprendiendo la carga inorgánica un negro de humo y otra carga inorgánica; añadir caucho polar o no polar plastificado a un mezclador interior y mezclar a presión durante 1 o 2 minutos para preparar una matriz de caucho; añadir la mezcla de suspensión de fibra modificada a la matriz de caucho y seguir mezclando a presión durante 1 o 2 minutos para preparar un compuesto de caucho mezclado; extruir el compuesto de caucho de un mezclador abierto para preparar el caucho modificado. A process for preparing a modified rubber, characterized in that it comprises the steps of: irradiating high-performance short fibers by means of ultraviolet light; add the irradiated high yield staple fibers to the ethanol and stir to prepare a uniformly dispersed fiber suspension; adding a coupling agent to the prepared fiber suspension; adjust a pH value of the fiber suspension to a range of 8 to 9, and wait for 2 to 4 hours at room temperature; add sodium dodecylbenzenesulfonate into the fiber suspension and wait 1 to 2 hours to prepare a reaction solution; filtering the reaction solution under ...

High performance tyre for vehicle wheels

Tyre (100) for vehicle wheels, comprising a carcass structure comprising at least one carcass layer (101), a belt structure (106) applied in a radially outer position with respect to the carcass structure, a tread band (109) applied in a radially outer position with respect to said belt structure, and at least one layer of elastomeric material (111) applied in a radially inner position with respect to said tread band; in which said at least one elastomeric material layer comprises inorganic fibres of magnesium and/or aluminium silicates of nanometric dimensions.

Airless tire

Include the tire of low-sulfur elastomer blends

本发明涉及具有径向胎体增强件(2)的轮胎，所述径向胎体增强件(2)由通过围绕胎圈线(4)的卷边而锚固至每个胎圈中的增强元件的层组成，所述胎体增强件的卷边由至少一个增强元件或加硬元件(8)的层加强。根据本发明，在子午平面至少一个区域Z的表面中含有的至少30％的弹性体混合物中，根据平衡溶胀法测量的硫键的相对密度小于5％，所述弹性体混合物是基于至少一种二烯弹性体的组合物，所述二烯弹性体选自由如下组成的二烯弹性体：聚丁二烯(缩写“BR”)、合成聚异戊二烯(IR)、天然橡胶(NR)、异戊二烯共聚物、除了丁二烯‑腈共聚物(NBR)以外的丁二烯共聚物、不包括具有羧基官能团的二烯弹性体、以及所述二烯弹性体的混合物。

Rubber composition for band topping, rubber composition for breaker edge strip, and pneumatic tire

Mix of rubbers and vehicle tire

Mezcla de cauchos reticulable con azufre, que contiene: - 20 a 100 phr de al menos un copolímero de estireno-butadieno funcionalizado A, en donde el copolímero de estireno-butadieno funcionalizado está funcionalizado por cada cadena polimérica en al menos un extremo de la cadena con un grupo alcoxisililo con contenido en grupos amino y al menos otro u otros grupos alcoxisililo y/o al menos uno u otros grupos alcoxisililo con contenido en grupos amino, y - 7 a 15 phf de al menos un mercaptosilano bloqueado y/o no bloqueado, presentando los mercaptosilanos bloqueados un grupo S-SG y, con ello, un grupo protector SG en el átomo de azufre, siendo los grupos protectores grupos acilo, y - 20 a 300 phr de ácido silícico y/o negro de carbono.