СЛОЖНЫЕ ПОЛИЭФИРПОЛИОЛЫ, ИМЕЮЩИЕ ВТОРИЧНЫЕ СПИРТОВЫЕ ГРУППЫ, И ИХ ПРИМЕНЕНИЕ ПРИ ПОЛУЧЕНИИ ПОЛИУРЕТАНОВ, ТАКИХ КАК ГИБКИЕ ПЕНОПОЛИУРЕТАНЫ

Изобретение относится к сложным сополиэфирам, которые применяют для получения гибких пенополиуретанов. Сополиэфир - жидкость при 50°С - включает (а) сегмент инициатора, являющийся простым полиэфиром с молекулярной массой от 300 до 1500 и, по меньшей мере, две гидроксильные группы, и (b) в среднем на одну молекулу сложного сополиэфира, по меньшей мере, три сложноэфирных звена из гидроксилсодержащей жирной кислоты, содержащей 7 или более атомов углерода, или смеси двух или более упомянутых жирных кислот. Жирные кислоты содержат вторичный гидроксил, удаленный, по меньшей мере, на 5 атомов углерода от карбонильного атома углерода кислотной группы жирной кислоты, и первичный гидроксил с одной или несколькими гидроксиметильными группами. Сополиэфир содержит от 3,5 до 10 сложноэфирных звеньев на объединенное количество гидроксильных, первичных аминных и вторичных аминных групп соединения инициатора. Изобретение позволяет получить сложный полиэфир с повышенной функциональностью и пониженной чувствительностью ...

ДИСПЕРСИЯ ПОЛИОЛОВ ДЛЯ СВЕРХМЯГКОЙ ПОЛИУРЕТАНОВОЙ ПЕНЫ

Изобретение относится к дисперсиям полиалкиленоксидполиолов, которые могут быть использованы для получения сверхмягкой полиуретановой пены. Описывается полученная in situ стабильная дисперсия полиолов, содержащая по меньшей мере два полиола, первый из которых имеет от 2 до 8 функциональных групп, и внутренний блок полиалкиленоксида с молекулярной массой не менее 700 Да и содержанием пропиленоксида не менее 65 вес.%. Внешний блок указанного первого полиола содержит не менее 50 вес.% этиленоксида, и доля внешнего блока составляет от 10 до 50 вес.% от общего веса первого полиола. Второй полиол указанной дисперсии имеет внешний блок, содержащий не менее 50 вес.% этиленоксида, и внутренний блок с высоким содержанием пропиленоксида и эквивалентным весом не более 300 Да. Кроме того, раскрывается полиуретановая пена, полученная вспениванием водой указанной дисперсии полиолов, и способ ее получения. Также раскрывается способ получения указанной дисперсии полиолов in situ в виде стабильной дисперсии ...

СПОСОБ ПОЛУЧЕНИЯ ГИБКОГО ПЕНОПОЛИУРЕТАНА

Изобретение относится к способу получения гибкого пенополиуретана. Способ включает проведение реакции между полиизоцианатом и полиольной композицией при изоцианатном индексе 95-125, в присутствии воды, реакционноспособного катализатора на основе третичного амина, содержащего по меньшей мере один атом водорода, реакционноспособный по отношении к изоционату, и катализатора на основе карбоксилата цинка. При этом полиольная композиция содержит полиоксиэтиленполиоксипропиленполиол (a1), характеризующийся уровнем содержания оксиэтилена 50-95 масс. % в расчете на массу (a1), и полиоксипропиленполиол (a2), при массовом соотношении между полиолами (a1) и (a2) в диапазоне от 90:10 до 50:50. Использование в способе карбоксилатов цинка в комбинации с реакционноспособными катализаторами на основе третичного амина позволяет значительно снизить уровень летучих органических соединений (ЛОС) в полученном гибком пенополиуретане, а также достичь желательную комбинацию механических свойств и характеристик ...

ПОЛИОЛЬНАЯ КОМПОЗИЦИЯ, ЭЛАСТИЧНЫЙ ЛАТЕКСОПОДОБНЫЙ ПЕНОПОЛИУРЕТАН И ФОРМОВАННОЕ ИЗДЕЛИЕ

Описывается полиольная композиция, содержащая полиол со стабильно диспергированным в нем полимером и полиол. Отличается композиция тем, что содержит: (а) 80-99,5 мас.ч. полимерного полиола, содержащего основной полиол, имеющий молекулярную массу в пределах от 2500 до 6500, среднюю номинальную функциональность Fn не менее 2,0 и первичное гидроксильное содержание не менее 40%, и стабильно диспергированный в нем полимер, и до общей массы 100 мас.ч.; (b) 0,5-20 мас.ч. гидрофильного полиола, имеющего молекулярную массу в пределах от 2000 до 5500, содержание этиленоксида не менее 40 мас.% и первичное гидроксильное содержание не менее 50%. Описывается также эластичный латексоподобный пенополиуретан и формованное изделие. Технический результат - снижение количества используемых полиолов и возможность использовать воду в качестве единственного вспенивающего агента. 3 с. и 7 з.п.ф-лы, 2 табл.

ПОЛИУРЕТАНЫ НА ОСНОВЕ САХАРОВ, СПОСОБЫ ИХ ПОЛУЧЕНИЯ И СПОСОБЫ ИХ ПРИМЕНЕНИЯ

Настоящее изобретение относится к огнестойким полиуретановым пенам, а также к способу их получения. Огнестойкая полиуретановая пена содержит две реакционные смеси. Первая реакционная смесь включает полиизоцианат и необязательно поверхностно-активное вещество, и вторая смесь включает природный полиол, в котором по существу все гидроксильные группы свободны, поверхностно-активное вещество, водное вспенивающее средство, катализатор, огнестойкую добавку, а также необязательные добавки. Количества первой и второй реакционных смесей таковы, что полученный изоцианатный индекс составлет от 20 до 50. Полученные полиуретановые пены проявляют высокую степень устойчивости к возгоранию и имеют высокий показатель содержания биоматериалов, а также характеризуются высоким «зеленым» показателем согласно стандартам ASTM. 2 н. и 29 з.п. ф-лы, 9 ил., 8 пр.

СПОСОБ УМЕНЬШЕНИЯ ВЫДЕЛЕНИЯ АЛЬДЕГИДА В ПОЛИУРЕТАНСОДЕРЖАЩИХ МАТЕРИАЛАХ

Настоящее изобретение относится к реакционной смеси для изготовления полиуретанового материала, а также к способу производства полиуретансодержащего материала, характеризующегося уменьшенными выделениями альдегида. Реакционная смесь содержит по меньшей мере одно соединение, реакционно-способное по отношению к изоцианату, по меньшей мере одно соединение акцептора альдегида, представляющее собой соединение формулы R1-NH-R2, в котором R1и R2 независимо друг от друга выбирают из числа –SO2R4, -C(O)R5, пиридильного производного, -СН=СНR3 или –СN, где R3 представляет собой –SO2R4, -C(O)R5, пиридильного производного или –СN, R4 представляет собой OR9 или R10, R5 представляет собой Н, OR9 или R10, где R9 или R10 представляют собой независимо друг от друга алифатический углеводород, ароматический углеводород необязательно замещенный заместителем, выбираемым из гидрокси группы, простого эфира, галогена, карбоксила, изоцианата, нитро и/или амина, R1 и R2 могут быть соединены друг с другом по существу ...

СПОСОБ ПОЛУЧЕНИЯ ПЕНОПОЛИУРЕТАНОВ

Изобретение относится к способу получения пенополиуретанов, преимущественно мягких полиуретановых пенопластов. Пенополиуретаны получают из А1 соединений, содержащих реакционно-способные по отношению к изоцианатам атомы водорода, с молекулярной массой 400-15000, А2, при необходимости, соединений, содержащих реакционно-способные по отношению к изоцианатам атомы водорода, с молекулярной массой 62-399, A3 воды и/или физических вспенивающих средств, А4, при необходимости, вспомогательных веществ и добавок, как, например a) катализаторы, отличные от компонента А5, b) поверхностно-активные добавки, c) пигменты или огнезащитные средства, А5 по меньшей мере одной соли олова (II) общей формулы (I),причем х означает целое число от 9 до 15 и алкильная цепочка CHявляется разветвленной, и В ди- или полиизоцианатов. Пенополиуретаны имеют низкие показатели эмиссии и хорошую устойчивость к старению. 2 н. и 6 з.п. ф-лы, 2 табл.

НОВЫЙ ТЕННИСНЫЙ МЯЧ

Заявленное изобретение относится к теннисному мячу и способу его производства. Теннисный мяч, который выполнен из эластомерного полиуретанового пеноматериала, имеющего форму мяча и плотность 250-800 кг/м, где пеноматериал покрыт текстильным материалом, и где пеноматериал получают путем взаимодействия ароматического полиизоцианата и полиола, содержащего как минимум 30 вес.% полиола, имеющего уровень ненасыщенности максимально 0,03 мЭкв/г, с использованием вспенивающего агента. Полиол, имеющий уровень ненасыщенности максимально 0,03 мЭкв/г, выбирают из сложных полиэфирполиолов, полиоксипропиленполиолов, полиоксиэтилен-полиоксипропиленполиолов, полиоксиэтиленполиолов, полиоксибутиленполиолов, полиоксиалкиленполиолов, содержащих оксибутиленовые группы вместе с оксиэтиленовыми и/или оксипропиленовыми группами, сложных полиоксиалкиленполиэфирполиолов и смесей таких полиолов при условии, что исключено использование полиоксиэтилен-полиоксипропиленполиола, имеющего содержание оксиэтилена, равное ...

СПОСОБ ПОЛУЧЕНИЯ ФОРМОВАННОГО ИЗДЕЛИЯ ИЗ ПЕНОПОЛИУРЕТАНА

Пенополиуретановое формованное изделие получают по технологии реакционного литьевого формования из полиизоцианата, полиольной смеси, содержащей полиол, катализатор и сшивающий агент, и вспенивателя. Полиизоцианат, полиольную смесь и вспениватель непрерывно вводят в пресс-форму формовочной машины, в которой предусмотрена подача по отдельности полиизоцианата, полиольной смеси и вспенивателя. Начало введения вспенивателя осуществляют с задержкой по времени, по меньшей мере, в 0,1 секунду после начала введения полиизоцианата и полиольной смеси. Количество полиизоцианата и полиольной смеси до начала введения вспенивателя составляет, по меньшей мере, 10 мас.% в расчете на общее количество полиизоцианата и общее количество полиольной смеси соответственно. Обеспечивается получение за одну стадию пенополиуретанового изделия, которое на требуемых участках имеет наружный слой с плотностью, по меньшей мере, 0,8 г/см3 и покрывает, по меньшей мере, 50% общей площади формованного изделия. 4 з.п. ф-лы, ...

ТЕКСТИЛЬ, СОЕДИНЕННЫЙ С ПОЛИУРЕТАНОВЫМИ ПЕНАМИ НИЗКОЙ ПЛОТНОСТИ, ПОЛУЧЕННЫМИ С ИСПОЛЬЗОВАНИЕМ КОМБИНАЦИИ СПОСОБОВ ПЕНООБРАЗОВАНИЯ И ДУТЬЯ

Изобретение относится к текстилю, имеющему основу из вспененного пенополиуретана низкой плотности и способу его получения. Текстиль, дублированный полиуретановой подкладкой, получают при нанесении слоя смеси, образующей вспененный полиуретан, на поверхность текстиля. Смесь содержит воду и физический вспенивающий агент. Слой вспенивается благодаря действию воды и физического вспенивающего агента и отверждается для формования присоединенной подкладки, имеющей плотность 176 г/л или менее. Изобретение обеспечивает создание легко контролируемого способа, по которому присоединенная полиуретановая подкладка низкой плотности может быть нанесена на ковер или другой текстиль без защитного слоя. 9 з.п. ф-лы, 1 табл., 2 пр.

СОСТАВ НА ОСНОВЕ ПОЛИУРЕТАНОВОЙ ПЕНЫ, ПРОДУКТЫ И СПОСОБЫ

Изобретение имеет отношение к материалу на основе полиуретановой пены с открытыми ячейками, изделию из пены с открытыми ячейками, полученному из указанного пенного материала, а также к способу приготовления изделий из пены с открытыми ячейками. Материал на основе полиуретановой пены включает продукт реакции полиола с молекулярной массой более чем 3000 и содержанием моноспирта менее чем 10 мас.%, сшивающий агент, аминовый катализатор, включающий катализатор раздува и катализатор гелеобразования, изоцианата, поверхностно-активного вещества и воды, Соотношение катализатора раздува к катализатору гелеобразования составляет от 1:3 до 1:8 по массе. Полиол и изоцианат обладают стехиометрическим соотношением (индексом) от 85 до 105. Способ приготовления изделий из пены с открытыми ячейками включает следующие стадии: обеспечение вышеуказанных полиола, сшивающего агента, аминового катализатора, изоцианата, поверхностно-активного вещества и воды с целью образования реакционной смеси; заполнение реакционной ...

ПОЛИУРЕТАНОВАЯ СИСТЕМА ДЛЯ ИЗГОТОВЛЕНИЯ ЭЛАСТИЧНЫХ ИЗДЕЛИЙ С УЛУЧШЕННЫМИ САНИТАРНО-ГИГИЕНИЧЕСКИМИ СВОЙСТВАМИ

Изобретение относится к химии пенополиуретанов, в частности к полиуретановой системе, предназначенной для изготовления эластичных изделий, предпочтительно, медицинского назначения, например ортопедических, технические параметры которых имеют улучшенные санитарно-гигиенические свойства, соответствующие требованиям их эксплуатации. Данное изобретение может быть использовано и для получения пенополиуретановых раневых повязок. Полиуретановая система для изготовления изделий с улучшенными санитарно-гигиеническими свойствами содержит составы на основе полиольного соединения А, изоцианатного соединения В и минерального агента С, который диспергирован в полиольном соединении А. При этом в качестве изоцианатного соединения В используют преполимеры метилендифенилдиизоцианатов MDI. В качестве минерального агента С используют смесь наноструктурных порошков бентонита, интеркалированных ионами серебра Ag+ и ионами церия Се3+. Технический результат - улучшение санитарно-гигиенических свойств получаемых ...

Пеноматериал гибридного типа и косметический набор, в котором его применяют

Настоящее изобретение относится к гибридному пеноматериалу, включающему гибридный сополимер простого полиэфирполиола и сложного полиэфирполиола, и к косметическому набору, включающему гибридный пеноматериал. 2 н. и 19 з.п. ф-лы, 3 ил., 4 табл.

СОСТАВ НА ОСНОВЕ ПОЛИУРЕТАНОВОЙ ПЕНЫ, ПРОДУКТЫ И СПОСОБЫ

... 1. Материал на основе полиуретановой пены с открытыми ячейками, включающий продукт реакции базового полиола большой молекулярной массы с низким содержанием моноспирта, сшивающего агента, обладающего степенью раздува из геля от 1:3 до 1:8 по массе, изоцианата, поверхностно-активного вещества и воды, в котором полиол и изоцианат обладают индексом от 85 до 105. ! 2. Пенный материал в соответствии с п.1, в котором молекулярная масса полиола составляет от 5000 до 10000. ! 3. Пенный материал в соответствии с п.1, в котором молекулярная масса полиола составляет от 6000 до 8000. ! 4. Пенный материал в соответствии с п.1, в котором содержание моноспирта в базовом полиоле составляет менее чем 10 мас.%. ! 5. Пенный материал в соответствии с п.4, в котором в котором содержание моноспирта в базовом полиоле составляет примерно 5 мас.%. ! 6. Пенный материал в соответствии с п.1, в котором степень раздува из геля сшивающего агента составляет от 1:3 до 1:6. ! 7. Пенный материал в соответствии с п.6, в котором ...

ПЕНОПОЛИУРЕТАНЫ, ПОЛУЧЕННЫЕ ИЗ СОДЕРЖАЩИХ ГИДРОКСИМЕТИЛ СЛОЖНЫХ ПОЛИЭФИРПОЛИОЛОВ

... 1. Способ получения пенополиуретана, включающий приведение органического полиизоцианата в контакт с композицией полиола, содержащей полиол высокой эквивалентной массы или смесь полиолов высокой эквивалентной массы, в присутствии пенообразователя и поверхностно-активного вещества в таких условиях, когда полиизоцианат взаимодействует с композицией полиола и пенообразователь образует газ, с получением ячеистого полиуретана и/или полимера на основе полимочевины, где по меньшей мере 10% по массе полиола (полиолов) высокой эквивалентной массы представляет собой один или несколько содержащих гидроксиметил сложных полиэфирполиолов, полученных взаимодействием содержащей гидроксиметильную группу жирной кислоты, имеющей 12-26 атомов углерода, или сложного эфира такой содержащей гидроксиметильную группу жирной кислоты с соединением-инициатором - полиолом или полиамином, имеющим в среднем по меньшей мере 2 гидроксильные, первичные аминогруппы и/или вторичные аминогруппы, так что содержащий гидроксиметил ...

БЛОКСОПОЛИМЕРЫ ЭТИЛЕНОКСИДА/ПРОПИЛЕНОКСИДА В КАЧЕСТВЕ СТАБИЛИЗАТОРОВ ДЛЯ ПОЛИУРЕТАНОВЫХ ПЕН

... 1. Применение блоксополимеров этиленоксида/пропиленоксида в качестве стабилизаторов для полиуретановых пен. ! 2. Применение по п.1, отличающееся тем, что блоксополимеры этиленоксида/пропиленоксида имеют 5-95 мас.% этиленоксида относительно суммы этилен- и пропиленоксида и среднечисленную молекулярную массу от 1000 до 10000 г/моль. ! 3. Применение по п.1, отличающееся тем, что в качестве блоксополимеров этиленоксида/пропиленоксида используют блоксополимеры формулы (I) ! ! 4. Применение по п.1, отличающееся тем, что помимо стабилизации достигается также гидрофильность пен. ! 5. Применение по п.1 или 4, отличающееся тем, что речь идет о таких полиуретановых пенах, которые получают физическим высушиванием из водных полиуретановых дисперсий. ! 6. Состав, содержащий водную, анионную гидрофильную полиуретановую дисперсию (I) и пенообразующие добавки (II), причем эти пенообразующие добавки (II) содержат, по меньшей мере, один блоксополимер этиленоксида/пропиленоксида. ! 7. Состав по п.6, отличающийся ...

СПОСОБ ПОЛУЧЕНИЯ ПОЛИМЕРА

... 1. Способ получения полимера с применением коммерчески доступного конденсационного полиэфира в качестве исходного материала, включающий: ! выбор смеси, содержащей модифицирующий мономер, при этом указанная смесь, содержащая модифицирующий мономер, содержит по меньшей мере один мономер, причем указанный по меньшей мере один мономер представляет собой молекулу, содержащую гидроксильную или сложноэфирную группу, способен принимать участие в реакциях переэтерификации и имеет молекулярную массу менее чем 1500, и при этом смесь, содержащая модифицирующий мономер, не содержит компоненты, полученные из коммерчески доступного конденсационного полиэфира; и ! переэтерификацию смеси, содержащей модифицирующий мономер, с применением предварительно установленного количества коммерчески доступного конденсационного полиэфира с получением конечного полимера. ! 2. Способ по п.1, отличающийся тем, что коммерчески доступный конденсационный полиэфир представляет собой полиэтилентерефталат. ! 3. Способ по п.1 ...

СПОСОБ ПОЛУЧЕНИЯ ПЕНОПОЛИУРЕТАНОВ

... 1. Способ получения пенополиуретана, включающий стадию взаимодействия полиизоцианата и компонента, содержащего активный водород, включая воду и органический полиол, в присутствии каталитически эффективного количества аминной каталитической системы замедленного действия, содержащей реакционный продукт (а) одной или более карбоновых кислот, имеющих гидрокси- и/или галоген-функциональность, и (b) одной или более третаминомочевин. 2. Способ по п.1, в котором карбоновая кислота реакционного продукта имеет общую формулу (X)n -R-(COOH)m, в которой R представляет собой, по меньшей мере, двухвалентный углеводородный остаток; Х представляет собой галоген, выбранный из группы, состоящей из хлора, брома, фтора, или гидроксил; n и m представляют собой целые числа, каждое отдельно имеющее значение не менее 1, при условии, что ни один углеродный атом не имеет более двух Х заместителей. 3. Способ по п.2, в котором двухвалентный углеводородный остаток карбоновой кислоты выбран из группы, содержащей линейный ...

ПОЛИОЛЫ НА ОСНОВЕ ПРИРОДНЫХ МАСЕЛ С СОБСТВЕННЫМИ ПОВЕРХНОСТНО-АКТИВНЫМИ СВОЙСТВАМИ ДЛЯ ВСПЕНИВАНИЯ ПОЛИУРЕТАНОВ

... 1. Способ получения полиуретанового продукта реакцией смеси ! (а) по меньшей мере, одного органического полиизоцианата с ! (b) композицией полиолов, включающей в себя ! (b1) до 99 мас.%, по меньшей мере, одного полиольного соединения, имеющего номинальную исходную функциональность 2-8 и гидроксильное число от 15 до 800, и ! (b2) от 1 до 100 мас.%, по меньшей мере, одного полиола на основе природного масла с гидроксильным числом меньше 300 и вязкостью при 25°С ниже 6000 мПа·с, ! (с) необязательно в присутствии одного или нескольких катализаторов получения полиуретана, ! (d) в присутствии порообразователя и ! (е) необязательных добавок или вспомогательных агентов, которые, по существу, известны для получения пенополиуретанов, ! где общая реакционная смесь, по существу, не содержит поверхностно-активные вещества на основе силикона. ! 2. Способ по п.1, где (b2) составляет от 30 до 85 мас.% общего полиола. ! 3. Способ по п.1, где полиизоцианатный компонент включает, по меньшей мере, 60 мас.% ...

ВСПЕНЕННЫЕ МАТЕРИАЛЫ, ВКЛЮЧАЮЩИЕ МАТРИЦУ С ВЫСОКИМ СОДЕРЖАНИЕМ ЖЕСТКИХ БЛОКОВ, И СПОСОБ ИХ ПОЛУЧЕНИЯ

... 1. Вспененный материал, имеющий плотность меньше 100 кг/м3 и включающий ! - материал матрицы, включающий большое количество карбамидных групп с содержанием жестких блоков более 50% (далее матрица А); и ! - полимерный материал, который 1) не содержит группы, способные образовывать уретановые, карбамидные или изоцианутратные группы при взаимодействии с изоцианатной группой, 2) является взаимопроникающим в указанную матрицу А и 3) представляет собой полимер, имеющий среднюю молекулярную массу больше 500, причем полимер содержит по меньшей мере 50% по массе оксиэтиленовых групп в расчете на массу данного полимера (далее полимерный материал В); и где относительное количество всех ингредиентов, используемых для получения указанной матрицы А и указанного полимерного материала В, в расчете по массе лежит в интервале от 10:90 до 70:30. ! 2. Вспененный материал по п.1, где содержание жестких блоков в матрице А составляет по меньшей мере 75%. ! 3. Вспененный материал по п.1, где содержание жестких ...

СИЛОКСАНОВЫЕ КОМПОЗИЦИИ

... 1. Силоксановые композиции, содержащие компонент смешения на основе масла оболочек ядер ореха кешью (CNSL). ! 2. Применение компонентов смешения по п.1, включающих содержащие алкилфенол составы, выделенные из масел оболочек ядер ореха кешью, вместе с силоксанами при получении пенополиуретанов и/или пенополиизоциануратов и/или пенополимочевин с добавлением компонента смешения. ! 3. Пенополиуретаны и/или пенополиизоцианураты и/или пенополимочевины, полученные с использованием компонентов смешения по п.1 или 2. ! 4. Композиция, содержащая силоксан или сополимер силоксана и компонент смешения на основе масла оболочек ядер ореха кешью, причем массовое соотношение между компонентом смешения и силоксаном составляет между 0,1 и 98 мас.%. ! 5. Композиция по п.4, причем массовое соотношение между компонентом смешения и силоксаном или сополимером силоксана составляет между 0,3 и 95 мас.%. ! 6. Силоксановые композиции, содержащие компонент смешения на основе масла оболочек ядер ореха кешью (CNSL) и ...

ПОВЯЗКА НА РАНЫ, СОДЕРЖАЩАЯ СЛОЙ ПЕНОПОЛИУРЕТАНА И ПОКРЫВАЮЩИЙ СЛОЙ ИЗ ТЕРМОПЛАСТИЧНОГО ПОЛИМЕРА

... 1. Слоистый композиционный материал, подходящий в качестве повязки на раны, включающий слой пеноматериала (10), а также покрывающий слой (20), причем этот покрывающий слой (20) содержит термопластичный полимер и по меньшей мере частично непосредственно соединен со слоем пеноматериала (10), и причем слой пеноматериала (10) содержит пенополиуретан, который получают путем того, что вспенивают и высушивают композицию, содержащую водную анионно гидрофилированную дисперсию полиуретана (I). ! 2. Слоистый композиционный материал по п.1, причем композиция, из которой получают пенополиуретан слоя пеноматериала (10), кроме того, содержит добавки, которые выбирают из группы, включающей амиды жирных кислот, сульфосукцинамиды, сульфонаты углеводородов, сульфаты углеводородов, соли жирных кислот, алкилполигликозиды и/или блоксополимеры этиленоксида/пропиленоксида. ! 3. Слоистый композиционный материал по п.2, причем блоксополимеры этиленоксида/пропиленоксида имеют структуру, соответствующую общей формуле ...

ПРИМЕНЕНИЕ НИЗКОНЕНАСЫЩЕННЫХ ПОЛИЭФИР-ПОЛИОЛОВ В БЛОЧНЫХ ПЕНОПЛАСТАХ

... 1. Способ получения блочного полиуретанового пенопласта, включающий стадии а) подачи триольного полиоксиалкилен-полиэфир-полиола со внутренними блоками из оксиалкиленовых мономеров с концевыми блоками, включающими связанный со внутренними блоками этиленоксид, причем внутренние блоки включают, по меньшей мере, 80 вес.% пропиленоксида в пересчете на общий вес всего оксиалкилена в указанных внутренних блоках, при этом количество этиленоксида в концевых блоках составляет от 5 до 25% от общего веса полиола, причем степень ненасыщения указанного полиола составляет максимум 0,015 мэкв./г КОН; б) подачи полиизоцианатного компонента; в) подачи катализатора; г) подачи воды в качестве вспенивателя в количестве от 3 до 7 вес.%; и д) взаимодействия полиола с полиизоцианатным компонентом в присутствии катализатора и воды для получения блочного полиуретанового пенопласта. 2. Способ по п.1, в котором стадия д) включает взаимодействие полиола и полиизоцианатного компонента при изоцианатном индексе, равном ...

СПОСОБ ПОЛУЧЕНИЯ ПОЛИУРЕТАНОВОГО ПОЛИМЕРА, СОДЕРЖАЩИЙ СЛОЖНЫЕ ПОЛИЭФИРПОЛИОЛЫ, ИМЕЮЩИЕ КОНЦЕВЫЕ ВТОРИЧНЫЕ ГИДРОКСИЛЬНЫЕ ГРУППЫ

... 1. Способ получения полиуретанового полимера, включающий стадию реакцииA) сложных полиэфирполиолов, имеющих концевые вторичные гидроксильные группы, которые могут получаться по реакции сложных полиэфиров, содержащих концевые карбоксильные группы, с эпоксидом общей формулы (1):причем R1 представляет собой алкильный остаток или арильный остаток, и причем сложный полиэфир, содержащий концевые карбоксильные группы, имеет кислотное число от ≥25 мг КОН/г до ≤400 мг КОН/г и гидроксильное число ≥5 мг КОН/гсB1) полиизоцианатами, которые выбираются из группы, включающей толуилендиизоцианат, дифенилметандиизоцианат, полимерный дифенилметандиизоцианат, ксилилендиизоцианат, нафтилендиизоцианат, гексаметилендиизоцианат, диизоцианатодициклогексилметан и/или изофорондиизоцианат;B2) форполимерами полиизоцианатов, указанных в B1);B3) аллофанатами, мочевинами, биуретами, изоциануратами, уретдионами и/или карбодиимидами полиизоцианатов, указанных в B1); и/илиB4) карбодиимид/уретониминовыми производными полиизоцианатов ...

СПОСОБ ПОЛУЧЕНИЯ ПРОСТЫХ ПОЛИЭФИРКАРБОНАТПОЛИОЛОВ

ПОЛИЭФИРПОЛИОЛЫ

... 1. Способ получения полиэфирполиолов катализированным присоединением этиленоксида и пропиленоксида к Н-функциональным инициаторам, отличающийся тем, что в качестве катализатора применяют по меньшей мере одно мультиметаллцианидное соединение и на конце цепи присоединяют блок из алкиленоксида с по меньшей мере тремя атомами углерода в молекуле. 2. Способ по п.1, отличающийся тем, что блок из алкиленоксида с по меньшей мере тремя атомами углерода в молекуле содержит алкиленоксид в количестве от 2 до 50 мас.% в пересчете на общую массу полиэфирполиола. 3. Способ по п.1, отличающийся тем, что блок из алкиленоксида с по меньшей мере тремя атомами углерода в молекуле содержит алкиленоксид в количестве от 2 до 20 мас.%, в пересчете на общую массу полиэфирполиола. 4. Способ по п.1, отличающийся тем, что блок из алкиленоксида с по меньшей мере тремя атомами углерода в молекуле содержит алкиленоксид в количестве от 5 до 15 мас.% в пересчете на общую массу полиэфирполиола. 5. Способ по п.1, отличающийся ...

НОВЫЙ ТЕННИСНЫЙ МЯЧ

... 1. Теннисный мяч, который выполнен из эластомерного полиуретанового пеноматериала, имеющего форму мяча и плотность 250-800 кг/м3, где пеноматериал покрыт текстильным материалом и где пеноматериал получают путем взаимодействия ароматического полиизоцианата и полиола, содержащего как минимум 30 вес.% полиола, имеющего уровень ненасыщенности максимально 0,03 мЭкв/г, с использованием вспенивающего агента, где полиол, имеющий уровень ненасыщенности максимально 0,03 мЭкв/г, выбирают из сложных полиэфирполиолов, полиоксипропиленполиолов, полиоксиэтилен-полиоксипропиленполиолов, полиоксиэтиленполиолов, полиоксибутиленполиолов, полиоксиалкиленполиолов, содержащих оксибутиленовые группы вместе с оксиэтиленовыми и/или оксипропиленовыми группами, сложных полиоксиалкиленполиэфирполиолов и смесей таких полиолов при условии, что исключено использование полиоксиэтилен-полиоксипропиленполиола, имеющего содержание оксиэтилена, равное 50-90 вес.% в пересчете на вес полиола, как единственного полиола, имеющего ...

ВОДНАЯ КОМПОЗИЦИЯ С ЭФФЕКТОМ МЯГКОСТИ НА ОЩУПЬ, ПЕНА СО СВОЙСТВАМИ МЯГКОСТИ НА ОЩУПЬ, СПОСОБ ЕЕ ПОЛУЧЕНИЯ И ПРИМЕНЕНИЕ

... 1. Водная композиция со свойствами мягкости на ощупь, содержащая A) водную дисперсию полиуретанмочевины, B) водное или водоразбавляемое связующее с гидроксильными функциональными группами, C) полиизоцианаты, возможно модифицированные для придания гидрофильности, а также D) пеностабилизаторы. 2. Водная композиция по п.1, отличающаяся тем, что компонент А) содержит структурные элементы, выбранные из следующих групп: а1) полиэфир-, полиэфирамид-, поликарбонат-, полиацеталь- и полиэфирполиолы с молекулярной массой, по меньшей мере, 300, содержащие, по меньшей мере, две свободные гидроксильные группы и способные взаимодействовать с изоцианатными группами; а2) диолы с молекулярной массой в пределах от 62 до 299; а3) неионное гидрофилизирующее средство на основе смешанного полимеризата окиси этилена и окиси пропилена; а4) ди- или полиизоцианаты; а5) алифатические и/или алициклические первичные и/или вторичные полиамины; а6) способные к взаимодействию с изоцианатами ионные или потенциально ионные ...

ПОЛИОЛЫ НА ОСНОВЕ РАСТИТЕЛЬНЫХ МАСЕЛ И ПОЛУЧЕННЫЕИЗ НИХ ПОЛИУРЕТАНЫ

... 1. Полиол на основе растительного масла, состоящий из где R означает остаток полиольного, полиаминового или аминоспиртового инициатора; X и X' могут быть одинаковыми или разными и означают О, N или NH; p означает целое число от 1 до 5; q означает целое число от 1 до 5, где p+q находится в интервале от 3 до 8; t означает целое число от 3 до 8; а A могут быть одинаковыми или разными и выбраны из группы, состоящей из A1, A2 и A3, где А1 означает А2 означает А3 означает где m, n, v, r, s, a, b и c означают целые числа, причем m больше 3, n больше или равно нулю, а m+n находится в интервале от 11 до 19, v больше 3, r больше или равно нулю, s больше или равно нулю, а v+r+s находится в интервале от 10 до 18, а находится в интервале от 0 до 35, b находится в интервале от 0 до 35, и c находится в интервале от 0 до 35, при условии, что не все значения a, b и c в любой молекуле полиола на основе растительного масла равны нулю, и что соотношение (a+b+c)/(p+q+t) в полиоле на основе растительного масла ...

ГИБКИЙ ПЕНОПОЛИУРЕТАН

... 1. Способ получения гибкого пенополиуретана из смеси форполимера и пенообразующих ингредиентов, где форполимер получают путем взаимодействия по меньшей мере одного полиола с по меньшей мере одним многофункциональным изоцианатом, отличающийся тем, что форполимер является невспененным полиоловым форполимером, имеющим доступные ОН-группы, и пенообразующие ингредиенты содержат по меньшей мере многофункциональный изоцианат и воду.2. Способ по п.1, отличающийся тем, что полиол, который подвергают взаимодействию с изоцианатом, с получением форполимера, является, по меньшей мере преимущественно, простым полиэфирполиолом.3. Способ по п.1, отличающийся тем,что простой полиэфирполиол является, по меньшей мере преимущественно, производным пропиленоксида (РО).4. Способ по п.3, отличающийся тем, что простой полиэфирполиол является триолом.5. Способ по любому из пп.1-4, отличающийся тем, что форполимер является форполимером низкой вязкости, полученным при участии в реакции доли в пределах от 0,1 до 30 ...

Weichelastische Polyurethanschaumstoffe und ein Verfahren zu deren Herstellung

Additiv zur Einstellung der Glasübergangstemperatur von viskoelastischen Polyurethanweichschaumstoffen

Die vorliegende Erfindung ist gerichtet auf die Verwendung eines Disalzes der Äpfelsäure bei der Herstellung von Polyurethanschaum, wobei das Disalz der Äpfelsäure der Reaktionsmischung, welche zumindest eine Polyolkomponente, eine Isocyanatkomponente, einen Katalysator, der die Ausbildung einer Urethan- oder Isocyanurat-Bindung katalysiert, optional ein Treibmittel, gegebenenfalls weitere Additive aufweist, zugegeben wird, zur Absenkung der Glasübergangstemperatur des erhaltenen Polyurethanschaums, sowie auf einen Polyurethanschaum mit einer Glasübergangstemperatur von 20°C bis 15°C, welcher dadurch gekennzeichnet ist, dass er Disalze der Äpfelsäure oder deren Umsetzungsprodukte mit einer Isocyantkomponente aufweist, wobei der Anteil der Disalze und deren Umsetzungsprodukte mit einer Isocyanatkomponente kleiner 0,08 Gew.-% bezogen auf den Polyurethanschaum beträgt.

Verfahren zur Herstellung von Polyurethanschaumstoffen

Herstellung von zellularen Elastomeren und chemische Zusammensetzungen zu deren Herstellung.

Verfahren zur Herstellung von Schaumstoffen

Flammwidrige Polyurethanweichschäume

VERFAHREN ZUR HERSTELLUNG VON FORMKOERPERN, HIERZU GEEIGNETE GEMISCHE VON GEGENUEBER ISOCYANATGRUPPEN REAKTIONSFAEHIGEN VERBINDUNGEN UND DIE NACH DEM VERFAHREN ERHALTENEN FORMKOERPER.

Elastomeric moulded bodies (I) based on polyurethane or polyurea, of density 0.8-1.4 g/cm3, are mfd. by reaction in a closed mould of (a) an isocyanate component contg. at least one aromatic di- or poly-isocyanate (II), (b) a mixt. of cpds. contg. NCO-reactive gps. and (c) usual additives, etc. as required. (b) contains cpds. of mol.wt. 1800-12000 contg. at least 2 NCO-reactive gps. (III) and opt. diamine(s) with two prim. or sec. aromatic amino gps. of mol.wt. 108-400 (IV). (a)-(c) are processed by one-shot reaction injection moulding, maintaining an NCO no. of 70-130. The novelty is that (b) also contains reaction prod(s). (V) of polyepoxide(s) of equiv. wt. 76-550 contg. at least 2 epoxide gps. with diamine(s) (IV) (at least 1 mol/mol), the amt. of (V) corresp. to 0.5-25 wt.% polyepoxide (w.r.t. total (b)).

Verfahren zur Herstellung eines flexiblen Polyurethanschaums

Herstellung zellularer Polymere und ihre Zusammensetzung

Abdeckung aus Verbundmaterial für Airbag-Aufprallschutzvorrichtung

AUS POLYETHERPOLYOLEN HERGESTELLTE POLYURETHAN-WEICHSCHÄUME

Verfahren zu Herstellung eines weich-elastischen Polyurethanschaumstoffes

Alkoxylierte Mannichkondensate enthaltende Polyole und Verfahren zu ihrer Herstellung.

Polyurethane foam for adsorbing chemicals or gases or for purifying waste water contains immobilized ethyleneimine, polyethyleneimines and/or alkali(ne earth) hydroxides

Polyurethane foams contains (i) ethyleneimine, polyvinyl amines or their copolymers or optionally carboxymethylated-, phosphonomethylated-, quaternized- and/or dithiocarbamatized-polyethyleneimine and/or (ii) alkali(ne earth) hydroxides. An Independent claim is also included for the preparation of the foam.

VERFAHREN ZUR HERSTELLUNG VON POLYURETHANSCHAUMSTOFFEN

Silikoncopolymere mit seitenständigen über Allylglycidylether und verwandte Verbindungen angebundenen Alkylreisten und ihre Verwendung als Stabilisatoren zur Herstellug von Polyurethanweichschäumen

Gegenstand der vorliegenden Erfindung sind Silikoncopolymere der Formel (I)die durch Reaktion von SiH-Gruppen aufweisenden Siloxanen mit speziellen Verbindungen, die eine oder mehrere gegenüber SiH-Gruppen reaktive Gruppen, insbesondere C-C-Mehrfachbindungen aufweisende Gruppen, sowie ggf. mindestens eine OH-Gruppe aufweisen, erhalten werden, Zusammensetzungen die diese Silikoncopolymere enthalten, ein Verfahren zur Herstellung eines Polyurethanschaums, bei dem ein entsprechendes Silikoncopolymer oder eine entsprechende Zusammensetzung eingesetzt wird, Polyurethanschaum, welcher durch das Verfahren erhältlich ist, sowie Artikel enthaltend oder bestehend aus einem entsprechenden Polyurethanschaum.

Verfahren zur Herstellung von Polyetheralkoholen und Polyurethanen

Verfahren zur Herstellung von Polyetheralkoholen, dadurch gekennzeichnet, dass man die Alkoxylierung in Gegenwart von Schichtsilikaten durchführt.

Verfahren zur Herstellung von gegebenenfalls zellförmigen Polyurethanen

Hydrophilic soft polyurethane foam useful for household sponges and baby diapers, prepared by reaction of polyisocyanate with a compound having two isocyanate reactive linkages in the presence of sulfonic acid

A hydrophilic soft polyurethane foam prepared by reaction of at least one polyisocyanate with at least one compound having at least 2 linkages which react with isocyanates is new. The reaction is carried out in the presence of sulfonic acids having one or more OH groups and/or their salts, and/or of polyalkyleneglycol ethers initiated (sic) with monools (sic). An Independent claim is included for preparation of soft polyurethane foams as described above, at an isocyanate index value of about 85-105.

Verfahren zur Herstellung von schallabsorbierenden Polyurethanschäumen mit adhäsiver Oberfläche

Verfahren zur Herstellung von schallabsorbierenden Polyurethanschäumen mit adhäsiver Oberfläche durch Umsetzung von organischen und/oder modifizierten organischen Polyisocyanaten (a) mit einem Polyetherolgemisch (b) und gegebenenfalls weiteren gegenüber Isocyanaten reaktive Wasserstoffatome aufweisenden Verbindungen (c) in Gegenwart von Wasser und/oder anderen Treibmitteln (d), Katalysatoren (e) und gegebenenfalls weiteren Hilfs- und Zusatzstoffen (f), dadurch gekennzeichnet, daß das Polyetherolgemisch (b) aus b1) mindestens einem zwei bis achtfunktionellen Polyetherol auf der Basis von Ethylenoxid und Propylenoxid mit einer OH-Zahl von 20 bis 80 mg KOH/g und einem Ethylenoxidendcap von > 10 Gew.-%, wobei der Anteil an primären OH-Gruppen > 50% beträgt, in einer Menge von 30 bis 70 Gew.-Teilen, bezogen auf die Komponenten b) bis f), b2) mindestens einem Polyetherol auf der Basis Ethylenoxid und Propylenoxid und/oder Butylenoxid mit einem zwei bis achtfunktionellen Starter und einer OH-Zahl ...

VERFAHREN ZUR HERSTELLUNG VON ELASTISCHEN, GEGEBENENFALLS ZELLFOERMIGEN, POLYURETHANHARNSTOFFEN

POLYURETHANSCHAUMSTOFF FÜR SCHUHSOHLEN

POLYURETHANSCHAUM MIT NIEDRIGER ELASTIZITÄT UND NIEDRIGER FREQUENZ

Sehr niedrige Dichte aufweisende Polyurethanformschäume ausgehend von isocyanatterminierten Prepolymeren

Aminomethyl-Pyrrolidin-Harnstoff-Zusammensetzungen für die Herstellung von Polyurethanen

VERFAHREN ZUR HERSTELLUNG VON POLYURETHAN-WEICHSCHAUMSTOFFEN

Aminopropylbis(aminoethyl)etherzusammensetzungen zur Herstellung von Polyurethanen

Polymerpolyol, flammhemmendes Polyurethanharz und daraus hergestellter Schaum

Preparation of improved polyurethane foams

A method of making a polyurethane prepolymer comprises either [A] (1) reacting a hydroxy terminated polyether polyol with organic polyisocyanate in an amount at least sufficient to provide a polyetherurethane having terminal isocyanate groups, (2) reacting said polyetherurethane with additional polyetherpolyol in an amount sufficient to provide a polyetherurethane of increased molecular weight having terminal hydroxy groups, (3) reacting the last mentioned polyetherurethane with additional organic polyisocyanate to provide a polyetherurethane of further increased molecular weight having terminal isocyanate groups and (4) optionally repeating stages (2) and (3) above, or [B] (1) reacting an organic polyisocyanate with a hydroxy terminated polyether polyol in an amount at least sufficient to provide a polyetherurethane having terminal hydroxyl groups, (2) reacting said polyetherurethane with additional organic polyisocyanate to provide a polyetherurethane of increased molecular weight having ...

A process for the production of foamed polyurethanes

In a process for the production of a foamed polyurethane, a polyhydroxy compound (which may also contain carboxyl groups) is reacted with a polyisocyanate in the presence of a metal catalyst and the reaction mixture simultaneously or subsequently foamed, if necessary or if desired (the latter case being when carboxyl groups are also present) with water. The metal catalyst is a salt, alcoholate or phenolate of tetravalent tin and a carboxylic acid, alcohol or phenol, each of which contains at least one basic tertiary nitrogen atom (which may be part of a heterocyclic ring) in the molecule, or is an organic chelate of tetravalent tin which contains at least one basic tertiary nitrogen atom (which may be part of a heterocyclic ring) in the molecule, each tin atom in the catalyst being attached to an organic radical by at least one carbon-tin bond. Specified polyhydroxy compounds are alkylene oxide polymers, dihydroxy naphthalenes, polyethers and addition products of alkylene oxides with dior ...

POLYOL COMPOSITIONS AND THEIR USE IN THE PREPARATION OF HIGH RESILIENCE POLYURETHANE FOAMS

FOAMS OF AROMATIC POLYAMIDES

Preparation of elastomers from polyalkylene ether glycols and diisocyanates

A polymer is made by heating together a polyalkylene glycol having a molecular weight of from 750-10,000 with a molar excess of an arylene diisocyanate. Elastomers are made by (a) performing at least the latter part of the reaction in presence of water, or (b) reacting the polymer with water. Preferably, 2-12 mols. of diisocyanate are used per mol. of glycol and 0.5-1.5 mols. of water are used per mol. of diisocyanate. Closed cell sponges result if the polymer is reacted with an amount of water at least equal to its mass (preferably 1-6 times its mass) and if desired in presence of a solvent, e.g. acetone or dioxane. Preferably the reaction between the glycol and diisocyanate and the reaction between the polymer and water is performed in presence of an acid-reacting substance, e.g. an inorganic or organic acid chloride, bromide or iodide or an inorganic acid and also the salt of a tertiary nitrogen or tertiary phosphorus base. Specified glycols are polyethylene, polypropylene, polybutylene ...

INTUMESCENT MATERIALS

... 1462859 Intumescent polyurethane foams DUNLOP Ltd 3 Oct 1974 [7 Nov 1973] 51752/73 Heading C3R A method for the production of an intumescent, flexible polyurethane foam comprises reacting together in a foam-forming reaction mixture: (a) a polyester polyol, (b) an organic polyisocyanate, e.g. tolylene diisocyanate, (c) a catalyst for the reaction of said polyisocyanate with the active hydrogen-containing groups of polyol (a) (d) a blowing agent, e.g. water, methylene chloride or trichlorofluoromethane, the reaction mixture containing a combination of (e) a polyol, not containing nitrogen atoms (said polyol being different from polyol (a)) said polyol (e) having 4 or more primary -OH groups, and an OH number of 300 to 700, and (f) an ammonium phosphate or a phosphate of an amine, the amount of the combination of (e) and (f) preferably being at least 10% wt. of polyol (a), and the weight ratio of (e) to (f) preferably being from 1 : 1 to 1 : 6. Suitable polyols (e) are oxyalkylated polyester ...

POLYURETHANE FOAMS

FLAME RETARDANT POLYURETHANE FOAMS

Preparation of melamine flame-proofed flexible polyurethane foams

Flameproofed flexible polyurethane foams are prepared by reacting organic and/or modified organic polyisocyanates (a) with a polyetherol mixture (b) and, if required, further compounds (c) having hydrogen atoms reactive toward isocyanates, in the presence of water and/or other blowing agents (d), catalysts (e) stabilizers (f), flameproofing agents (g) and, if required, further assistants and additives (h), by a process in which the polyetherol mixture (b) comprises

Polymeric MDI prepolymer compositions and flexible foams prepared therefrom

Prepolymers, comprising (a) a polymethylene polyphenylene polyisocyanate; and (b) a polyether polyol having an average hydroxyl equivalent weight of at least about 700; and having an average viscosity of between about 400 and about 2000 centipoise at 25‹C are useful, for example, for the production of polyurethane foams, more particularly medium-density flexible foams having superior flow characteristics and fast demold times.

High resilience polyurethane foam

Fragrance containing polyurethane foam

Removing catalyst residues of catalysts from polyetherpolyols

Polyetherpolyols containing residues of catalysts of the double metal cyanide complex class are treated with a strong base and ion exchanged or neutralized and filtered to provide a stable polyol with reduced tendency to form allophanates with diisocyanates. Further, the addition of ethylene oxide to the polyol while in contact with the strong base serves to end cap the polyol to provide it with primary hydroxyl groups.

Dimensionally-stable polyurethane sponge and sponge-forming prepolymer

An methylene bis (phenylisocyanate)- based polyurethane foam having cellulose foam properties is produced by mixing together an aqueous phase which can optionally contain reinforcing fibers and surfactants and a resin phase comprising a prepolymer derived from a poly (oxy C2-4alkylene) diol having at least 50% by weight of oxyethylene groups and a number average molecular weight of at most 1100, an MDI containing isocyanate product having a functionality greater than 2.0 made of a mixture of MDI and isocyanate-containing derivatives of MDI, and a monomeric polyol cross-linking agent having 3 or 4 hydroxyl equivalents per mole. The diol and the polyol, such as trimethylolpropane, are present in a mole ratio in the range of 4:1 to 8:1 while the ratio of the isocyanate equivalents to the total hydroxyl equivalents is in the range of 3:1 to 4:1. The isocyanate containing product comprises more than 50% by weight of the prepolymer. The foam has a minimal swell when wet and it does not curl upon ...

Foam element with cellulose incorporated in it

POLYURETHANE FOAMS

FLEXIBLE POLYURETHANE FOAMS

PROCESS FOR MAKING FLEXIBLE FOAMS

MANUFACTURE OF POLYMERIC FOAMS

Polyurethane foam

Poyurethane foams for use in wound dressings

Polyurethane compositions II

Preparation of flexible elastomeric cellular materials

A process of preparing a flexible, elastomeric cellular material from the reaction of 2,4-tolylene diisocyanate, water and an active-hydrogen-containing polymeric material having an average molecular weight of from 750 to 2,250 and an acid number not greater than 5, comprises forming a prepolymer by reacting the polymeric material with from 0.9 to 1.10 mol. of 2,4-tolylene diisocyanate per mol. of the polymeric material until the exothermic heat of reaction has been substantially evolved and removed from the reaction mixture, adding further 2,4-tolylene diisocyanate and water to the prepolymer and permitting the complete reaction mixture to expand and cure, conducting either and preferably both, of the diisocyanate reactions in the presence of from 0.5 to 3 parts of castor oil per 100 parts by weight of the active-hydrogen-containing polymeric material. The expression "active-hydrogen-containing polymeric materials" means polyesters, polyesteramides and polyalkylene ether glycols. Suitable ...

Improvements in or relating to the manufacture of polymeric materials

A process for the manufacture of expanded synthetic rubber-like materials by reacting polyesters with polyisocyanates and water in the presence of a tertiary amine catalyst is characterized in that the reactants used in preparing the polyester comprise from 1.92 to 18 molar percentage, based on the total dicarboxylic acid incorporated, of at least one compound containing more than two isocyanate-reactive groups. The polyester is preferably prepared from such dicarboxylic acids and glycols as to be liquid at normal temperature. Suitable compounds containing more than two isocyanate-reactive groups are polyhydric alcohols such as glycerol, pentaerythritol, sorbitol, mannitol, hexanetriol, polyallyl alcohol and triethanolamine, polycarboxylic acids such as tricarballylic acid and pyromellitic acid and compounds with mixed functional groups such as diethanolamine and dihydroxystearic acid. The reaction may be effected in the presence of emulsifying agents such as turkey red oil, oleic acid ...

Polyalkylene ether-polyurethane polymer and elastomeric products obtainable therefrom

Elastomeric polyurethanes are obtained by reacting under substantially anhydrous conditions a polyalkylene ether glycol of molecular weight at least 750 with a molar excess of an organic diisocyanate, and reacting the product with a chain-extending agent (other than water or a glycol) having a plurality of active hydrogen atoms. The polyalkylene glycol may be polyethylene-, polypropylene-, poly-1,2-dimethylethylene- or polydecamethylene-glycol or polydioxolane. The diisocyanate may be aliphatic, cycloaliphatic or aromatic, many being specified. The chain-extending agent may be hydrogen sulphide or an organic compound (other than a glycol) containing a plurality of active hydrogen atoms in the form of -OH, -SH, -NH-, -NH2, -COOH, -CONH2, -CONHR (where R is an organic radical), -SO2OH, -SO2NH2 or -CSNH2 groups. Specified organic compounds are adipic acid, succinic acid, beta-hydromuconic acid, terephthalic acid, 1,2-ethane-disulphonic acid, hydroquinone, 4 - (beta - hydroxyethoxy)-phenol, ...

A process for the production of foam materials containing urethane groups

A process for the production of foam materials comprises reacting together in one step at least one polyisocyanate and a mixture of castor oil and one or more linear and/or branched polyethers in the presence of a blowing agent, the amount of castor oil being more than 50% by weight of the total weight of the polyether and castor oil. As polyethers these may be used polymerization products of ethylene or propylene oxide or of tetrahydrofuran, if desired in admixture with polyhydric alcohols and/or amines. Addition products of alkylene oxides with such p amines as ethylene diamine and diethylene triamine can be used. In Example (1) a foam is prepared by reacting mixed castor oil and polypropylene glycol (60:40); an activator mixture of endoethylene piperazine, N-methyl-N1-di-methylamino ethylpiperazine, tin-(II)-octoate, polysiloxane-polyalkylene oxide copolymer; water; and toluylene diisocyanate, the components being supplied to the mixing chamber of a nozzle-type apparatus. In other examples ...

Improvements in and relating to foamed polymers

Foamed polymers of oxyalkylene-carboxyalkylenes (produced by reaction of a polyfunctional focal compound, a lactone and a 1, 2-epoxide as described and claimed in Specification 880,923 are prepared by reacting the oxyalkylenecarboxyalkylene polymers with water and a substantial molar excess, preferably 100-700% by weight, of polyisocyanate. A considerable number of isocyanates, including higher functional polyisocyanates, are specified. The rigidity of the foam produced depends on the molecular weight of the oxyalkylene-carboxyalkylene polymer employed, viz. polymers of molecular weight 100-1600 for semi-rigid foams, for flexible, open-cell foams the polymer should be substantially linear and have a molecular weight of 1600-2800, and for flexible, closed-cell foams the polymer should be branched and have a molecular weight of 3500-6000. A specified blend has 70 to 95% of a linear oxyalkylene-carboxyalkylene polymer having an average molecular weight of 1600-2800 and 30 to 50% of a branched ...

Microcellular polyurethane foams

A method of improving the load-bearing properties of microcellular flexible, urethane foams wherein the processing characteristics for the production thereof are also improved, which comprises utilizing a combination of 1,4-butanediol and phenyldiethanolamine as a chain extender.

STABLE HYDROPHILIC POLYURETHANE FOAM

PU SOFT FOAM WITH LOW EMISSION, MANUFACTURED WITH AUTO+CATALYTICALLY EFFECT POLYOLEN

PROCEDURE FOR THE PROCESSING OF ISOCYANATE ADDUCTS

AUTOCCARPET COMPREHENSIVE A PU THERMAL FORM SOFT FOAM MATERIAL

INSATIATED MAKROMERE FOR THE PRODUCTION OF PREFORMED STABILIZERS AND POLYMERPOLYOLEN

MORE POLYETHERESTER THAN FLAME PROTECTION ADDITIVES FOR PU SOFT FOAM MATERIALS

PROCEDURE FOR THE PRODUCTION OF KALTHAERTENDEN, FLEXIBLE ONE, GROUPS OF URETHANES EXHIBITING FOAM MATERIALS

VERFAHREN ZUM HERSTELLEN VON POLYURETHAN MIT INTEGRALHAUT

VERFAHREN ZUR HERSTELLUNG VON SUPERELASTISCHEN POLYURETHANSCHAUMSTOFFEN (KALTSCHAUMSTOFFEN)

Flame retardants suitable for use in viscoelastic polyurethane foams

The present invention relates to viscoelastic polyurethane foam formulations, viscoelastic polyurethane foams formed from such formulations, and products formed from the viscoelastic polyurethane foams.

Method of synthesizing tuneably high functionality in high molecular weight natural oil polyols

Methods of one-pot synthesis of high molecular weight natural oil polyols having a functionality of between about 4 and about 8 are provided. The resultant polyols may be directly reacted with polyisocyanates to produce polyurethanes.

Flame retarded,themoplastic composition, process for making same and article containing same

There is provided herein a composition comprising: (a) a flexible polyurethane foam-forming mixture and; an effective flame retarding amount of at least one non halogen-containing cyclic phosphate ester of the general formula (I): wherein R 1 and R 2 , are the same or different, linear or branched alkyl group containing from up to about 10 carbon atoms, optionally containing heteroatom substituents, provided that R 1 and R 2 are not both methyl; and R 3 -R 7 are each independently hydrogen or the same or different linear or branched alkyl group containing up to about 4 carbon atoms, optionally containing heteroatom substituents; provided that the cyclic phosphate ester is a liquid or is substantially soluble in at least one different liquid flame retardant and/or the hydroxyl-containing component of the flexible polyurethane foam-forming mixture; the cyclic phosphate ester of formula (I) contains at least 8.5 weight percent phosphorous based on the total weight of any phosphorous containing component(s); and, provided that the composition is in the absence of melamine compound. There is also provided a flame retardant additive composition comprising the cyclic phosphate ester of formula (I) and at least one different liquid flame retardant. Further, there is provided a process of making a flame retarded polyurethane foam mixture.

Branched poly(trimethylene ether) polyols

Disclosed is branched poly(trimethylene ether)polyols prepared from the acid catalyzed polycondensation reaction of 1,3-propanediol, and at least one triol comonomer selected from 1,1,1-tris(hydroxymethyl)ethane and 1,1,1-tris(hydroxymethyl)propane. Also disclosed is a branched poly(trimethylene ether)polyol with an equivalent hydroxyl functionality of about 2.1 to about 3.2 and a M n of about 200 to about 6000. The polyols are useful in the preparation of polyurethane rigid and flexible foams.

Composition containing specific carbamate type compounds suitable for producing polyurethane foams

Compositions suitable for producing polyurethane foams which include at least an isocyanate component, a polyol component, a catalyst catalyzing formation of a urethane or isocyanurate bond, and at least one compound containing at least one structural element of formula (I)

Strength-improving agent for production of polyurethane foam

Provided is a strength-improving agent for the production of polyurethane foam, said agent enabling the production of a polyurethane foam having high tensile strength, tear strength and compressive strength. A strength-improving agent (A) for the production of polyurethane foam, represented by general formula (I) [wherein each R1 is a residue derived from an active-hydrogen containing compound by the removal of one active hydrogen atom, and multiple R1s may be the same or different; Y is a residue derived from an at least trivalent aromatic polycarboxylic acid (C) by the removal of the carboxyl groups; the aromatic ring of Y is composed of carbon atoms; the substituents on the aromatic ring maybe hydrogen or other groups, with the proviso that at least one of the substituents is hydrogen; a is an integer satisfying the relationship: 2≦a≦[(the number of substituents on the aromatic ring)−2]; Z is a residue derived from an at least m-valent active-hydrogen containing compound by the removal of m active hydrogen atoms; some R1s and Z may be the same, with the proviso that at least one R1 is different from Z; and m is an integer of 1 to 10].

Polyurethane foams made with alkoxylated vegetable oil hydroxylate

The present invention provides polyurethane foams and elastomers made with an alkoxylated vegetable oil hydroxylate replacing at least a portion of the typically used petroleum-based polyol(s). Also provided are processes for making the inventive foams and elastomers and for making alkoxylated vegetable oil hydroxylates. The alkoxylated vegetable oil hydroxylates are environmentally-friendly, bio-based polyols which advantageously also offer the potential of improved hydrophobicity in polyurethane foams and elastomers. The inventive polyurethane foams and elastomers may find use in a wide variety of products such as automobile interior parts, polyurethane structural foams, floor coatings and athletic running tracks.

Aqueous cold-cure flexible stabilizer formulations

Aqueous cold-cure flexible foam stabilizer including the following components: a) from ≧0.1 to ≦80% by weight of at least one water-insoluble polysiloxane compound having a molecular weight of from ≧300 g/mol to ≦10 000 g/mol, b) ≧2% by weight of water, c) ≧0.1% by weight of surfactant, d) from ≧0 to 10% by weight of additives selected from the group consisting of thickeners, antifreezes, organic solvents and biocides, e) ≧0% by weight of water-soluble siloxane(s), with the proportion by weight of the abovementioned components being selected so that the sum of the proportions by weight of the components is not more than 100% by weight, based on the aqueous cold-cure flexible foam stabilizer formulation.

Isocyanate-terminated prepolymer, the method for preparing the same and the use thereof

The present invention pertains to the field of polyurethane, especially relates to an isocyanate-terminated prepolymer, the method for preparing the same and the use thereof. The present invention adjusts the reaction components and the ratios thereof to obtain an isocyanate-terminated prepolymer suitable for preparing flexible polyurethane foam under a relative low mold temperature. The method for preparing flexible polyurethane foam by using the isocyanate-terminated prepolymer provided in this present invention can reduce the mold temperature, production time and energy consumption, as well as to obtain a polyurethane flexible foam processing good physical and mechanical properties.

Producing rigid polymer foams

A process for producing a rigid polymer foam comprises reacting components A to C in the presence of component D or an isocyanate-functional prepolymer of components A and B with component C in the presence of component D, the total amount of which is 100 wt %, (A) 35 to 65 wt % of at least one polyisocyanate component A, (B) 5 to 50 wt % of at least one polyol component B, (C) 1 to 59 wt % of at least one polycarboxylic acid component C, and (D) 0.01 to 3 wt % of at least one Lewis base component D, wherein the reaction takes place with release of carbon dioxide.

Process for the preparation of polyricinoleic acid ester polyols having primary hydroxyl end groups

The present invention relates to a process for the preparation of polyricinoleic acid ester polyols having primary hydroxyl end groups. It furthermore relates to polyricinoleic acid ester polyols obtainable according to the invention and polyurethane polymers prepared using these polyols. The process comprises the steps: a) polycondensation of ricinoleic acid until a hydroxyl number of >0 mg of KOH/g to <60 mg of KOH/g is reached; and b) reaction of the product obtained in step a) or of a secondary product of the product obtained in step a) comprising carboxyl groups with an epoxide of the general formula (I), wherein R1 represents hydrogen, an alkyl radical or an aryl radical, with the proviso that >80% by weight to <100% by weight, based on the total amount of the epoxide (I) employed, is ethylene oxide and the reaction is carried out in the presence of an amine as the catalyst.

Polishing pad and manufacturing method therefor

Provided are a polishing pad which remedies the problem of scratches occurring when a conventional hard (dry) polishing pad is used, which is excellent in polishing rate and polishing uniformity, and which can be used for not only primary polishing but also finish polishing, and a manufacturing method therefor. The polishing pad is a polishing pad for polishing a semiconductor device, comprising a polishing layer having a polyurethane-polyurea resin foam containing substantially spherical cells, wherein the polyurethane-polyurea resin foam has a hard segment content (HSC) in a range from 26 to 34%, and has a density D in a range from 0.30 to 0.60 g/cm 3 , the hard segment content (HSC) being determined by the following formula (1): HSC=100×( r −1)×( Mdi+Mda )÷( Mg+r×Mdi +( r −1)× Mda )  (1).

Impact absorbing foam

This invention relates to impact absorbing foams. These foams comprise a polymeric foam and ceramic particulates dispersing the foam. These foams have numerous uses, including, for example, as interior pads for football helmets, and the like, for reducing head injuries.

Use of metal salts of a carboxylic acid in the production of polyurethane systems

A catalyst system which is suitable for catalyzing the production of polyurethane systems is provided. The catalyst system contains a metal salt of a carboxylic acid to whose carbonyl carbon a hydrogen atom or a hydrocarbon radical is bound, with the proviso that the carboxylic acid does not have exclusively a single ethyl or n-propyl branch in the 2 position.

Two-Component, Water-Based Lamination Adhesive and Use of the Same to Bond Substrates and Foams

A water comprising, two component polyurethane dispersion adhesive comprising an anionic polyester polyurethane resin and a solvent-free liquid aliphatic polyisocyanate cross-linker. The dispersion can be reactivated one or more times for edge bonding a flexible sheet material onto a substrate having a main surface, a peripheral surface and an edge connecting the main surface and the peripheral surface.

Polyurethanes

A process for making a flame retardant polyurethane foam, the process comprising reacting a PO based polyol with foam-forming reactants to provide said polyurethane foam, wherein said polyol is prepared by ring-opening polymerization of alkylene oxide in the presence of a composite metal cyanide complex catalyst, and wherein said polyol is either free from EO moieties or comprises EO moieties in an amount of at most 1% w/w.

HYDROPHILIC POLYURETHANE FOAM FOR WATER RETENTION APPLICATIONS

Hydrophilic polyurethane foam is made from a diphenylmethane-based quasi-prepolymer having specified isocyanate and oxyethylene contents. The foams have an unusually good capacity for retaining water even when under compressive forces. They also exhibit at most moderate swelling when saturated with water. The foam is useful as a layer of a water containment system such as a green roof or blue roof system. 1. A hydrophilic polyurethane foam which is the reaction product of a reaction mixture that comprises:a) water,b) a quasi-prepolymer, which quasi-prepolymer has an isocyanate content of 5 to 15% by weight and contains 55 to 75 weight percent of oxyethylene units based on the weight of the quasi-prepolymer, which quasi-prepolymer is a reaction product of 1) a hydroxyl-terminated polymer of ethylene oxide or mixture of two or more thereof, wherein the hydroxyl-terminated polymer of ethylene oxide or mixture thereof has an average oxyethylene content of at least 90 weight percent, based on the weight of the hydroxyl-terminated polymer of ethylene oxide or mixture thereof, has a number average nominal hydroxyl functionality of 2 to 2.5 and has a number average hydroxyl equivalent weight of at least 350, with ii) an excess of an organic polyisocyanate that includes at least 80 weight percent diphenylmethane diisocyanate of which diphenylmethane diisocyanate at least 60 weight percent is 4,4′-diphenylmethane diisocyanate, wherein component b) is present in an amount sufficient to provide an isocyanate index of 0.5 to 50; andc) one or more surfactants.2. The hydrophilic polyurethane foam of wherein the hydroxyl-terminated polymer of ethylene oxide or mixture of two or more thereof includes at least one ethylene oxide homopolymer.3. The hydrophilic polyurethane foam of wherein the hydroxyl-terminated polymer of ethylene oxide or mixture of two or more thereof includes at least one random or block copolymer of ethylene oxide and 1 claim 2 ,2-propylene oxide which contains ...

Porous layer structure and method for producing same

Provided is a porous layer structure including a base material (A) and a urethane foam layer provided on the base material (A), wherein the urethane foam layer is a foam layer formed by foaming a urethane prepolymer having an isocyanate group, the urethane foam layer has a density of 0.10 to 0.60 g/cm 3 , and the urethane prepolymer substantially contains no volatile component and satisfies a predetermined composition.

Method for producing polyoxymethylene polyoxyalkylene block copolymers

The invention relates to a method for producing a polyoxymethylene polyoxyalkylene block copolymer, said method including the process of reacting a polymer formaldehyde compound with alkylene oxide in the presence of a double metal cyanide (DMC) catalyst and an H-functional starter substance, wherein the theoretical molar mass of the polymer formaldehyde compound is lower than the theoretical molar mass of the H-functional starter substance, and the polymer formaldehyde compound has at least one terminal hydroxyl group, the theoretical molar mass of the H-functional starter substance being at least 500 g/mol. In the method according to the invention, a mixture i) is provided comprising the DMC catalyst and the H-functional starter substance in step (i); the polymer formaldehyde compound is then added to the mixture (i) in step (ii), thereby forming a mixture (ii); and the alkylene oxide is added in step (iii), step (ii) being carried out at the same time as or prior to step (iii).

Polymeric phenolic antioxidants

A phenol compound comprises a phenyl group, a hydroxy group directly bonded to the phenyl group, and at least one polymeric substituent bound to the phenyl group. The polymeric substituent comprises three or more monomers units. A method for producing a polyurethane polymer comprises the steps of (a) providing a polyol; (b) providing a polyisocyanate compound; (c) providing the phenol compound described above; (d) combining the polyol, the polyisocyanate compound, and the phenol compound to produce a reaction mixture; and (e) allowing the polyol and the polyisocyanate compound to react to produce a polyurethane polymer.

Flexible polyurethane foam and method of producing same

A flexible polyurethane foam comprises the reaction product of an isocyanate component and an isocyanate-reactive component in the presence of a blowing agent. The isocyanate component comprises a polymeric diphenylmethane diisocyanate component and a monomeric diphenylmethane diisocyanate component. The monomeric diphenylmethane diisocyanate component comprises 2,4′-diphenylmethane diisocyanate and 4,4′-diphenylmethane diisocyanate. The flexible polyurethane foam is substantially free of supplemental flame retardant additives and exhibits flame retardance under flammability tests according to California Technical Bulletin 117 regulations.

Viscoelastic flexible polyurethane foams based on polyether carbonate polyols

The present invention relates to a method for the production of viscoelastic polyurethane foams by reacting an isocyanate component with a component which is reactive towards isocyanates, comprising ≧50 to ≦100 weight parts of at least one polyether carbonate polyol with a hydroxyl number according to DIN 53240 of ≧150 mg KOH/g to ≦300 mg KOH/g. The invention also relates to polyurethane foams produced by the method of the invention and their use.

FLEXIBLE POLYURETHANE FOAMS HAVING IMPROVED LONG-TERM PERFORMANCE CHARACTERISTICS

The present invention relates to polyol mixtures comprising (b1) at least one polyether polyol having a hydroxyl value of 10 to 60 mg KOH/g and having a high proportion of ethylene oxide, (b2) at least one polyether polyol having a hydroxyl value of 10 to 100 mg KOH/g, a low proportion of ethylene oxide, and not less than 40% primary OH groups, and (b3) at least one polyether polyol having a hydroxyl value of 10 to 100 mg KOH/g, a low proportion of ethylene oxide, and not more than 30% primary OH groups, and b5) from 0.25 to 10 further parts by weight of polyurea, based on 100 parts by weight of components b1) to b3), optionally present as a constituent of a dispersion polyol based on one or more of components b1) to b3).

Method for Making Organic Foam Composites Containing Aerogel Particles

Aerogel particles are impregnated with a volatile liquid. Organic polymer foams are made in the presence of the impregnated aerogel particles. The volatile liquid volatilizes during the foaming process, resulting in a composite foam in which the dispersed aerogel particle are filled with gas. The composite foams have exceptionally low thermal conductivities.

High strength polyurethane foam compositions and methods

Disclosed are high strength polyurethane foam compositions and methods of making them. In one aspect, the inventive polyurethane foams include strength enhancing additives comprising one or more polycarbonate polyols derived from the copolymerization of CO 2 and one or more epoxides. In one aspect, the inventive methods include the step of substituting a portion of the polyether polyol in the B-side of a foam formulation with one or more polycarbonate polyols derived from the copolymerization of CO 2 and one or more epoxides.

Integrated Polyurethane Article

This technology relates to an integrated article that includes (a) a flexible foam region and (b) a non-foam region. The flexible foam region and the non-foam region are each made of a polyurethane composition. In some embodiments, the flexible foam region is a midsole, and wherein the non-foam region is an outsole. The flexible foam region is made from a flexible polyurethane injection molded foam. The non-foam region is made from a non-foamed polyurethane, which may be extruded or thermoformed. The invention relates to this integrated article, as well as the methods of making and using the same.

PROCESS FOR PRODUCING A LOW DENSITY FREE-RISE POLYURETHANE FOAM

There is described a process for producing a free-rise polyurethane foam having a density of less than or equal to about 0.75 pcf. the process comprises the steps of: (a) contacting: (i) an isocyanate, (ii) a first polyol comprising a first polymer chain consisting essentially of propylene oxide units and alkylene oxide units selected from ethylene oxide, butylene oxide and mixtures thereof in a weight ratio of propylene oxide units to alkylene oxide units in the range of from about 90:10 to about 25:75, the polymer chain being terminally capped with the ethylene oxide units, the first polyol having a primary hydroxyl content of at least about 70% based on the total hydroxyl content of the first polyol, (iii) water (iv) a surfactant and (v) a catalyst to form a foamable reaction mixture; and (b) expanding the foamable reaction mixture to produce the free-rise polyurethane foam. 147-. (canceled)48. A free-rise polyurethane foam produced by a process for producing a free-rise polyurethane foam having a density of less than or equal to about 0.75 pcf , the process comprising the steps of:(a) contacting: (i) an isocyanate, (ii) a first polyol comprising a first polymer chain consisting essentially of propylene oxide units and alkylene oxide units selected from ethylene oxide, butylene oxide and mixtures thereof in a weight ratio of propylene oxide units to alkylene oxide units in the range of from about 90:10 to about 25:75, the polymer chain being terminally capped with the ethylene oxide units, the first polyol having a primary hydroxyl content of at least about 70% based on the total hydroxyl content of the first polyol, (iii) water (iv) a surfactant and (v) a catalyst to form a foamable reaction mixture; and(b) expanding the foamable reaction mixture to produce the free-rise polyurethane foam.49. A free-rise flexibile polyurethane foam: (i) having a density less than or equal to about 0.75 pcf , (ii) having a low exotherm during production , and (iii) being ...

Phosphoric ester preparations with reduced hygroscopicity

The present invention relates to phosphoric ester preparations with reduced hygroscopicity, to use of these as flame retardants and hydraulic fluids, and to polyurethanes which comprise the phosphoric ester preparations of the invention.

Closed-Loop Recycled Polyurethane Foam, Methods Of Manufacture and Products Therefrom

The present disclosure relates to the production of molded products containing recycled content, and more particularly polyurethane foam which includes polyol recovered from chemical recycling of polyurethane foam scrap, which polyol has been treated to optimize viscosity and/or reactivity characteristics.

POLYURETHANE FOAMS FOR COMFORT APPLICATIONS

Flexible polyurethane foams are made by reacting a hydrophilic quasi-prepolymer, water and a polymer polyol in the presence of a silicone surfactant and an ethylene oxide/higher alkylene oxide block copolymer. The foams exhibit desirably low densities and compression sets, and have good thermal and moisture-wicking properties. The foams are useful in bedding and other comfort applications in which they are exposed to body heat and bear at least a portion of the weight of the user. The thermal and moisture wicking properties contribute to perceived comfort for the user. 1. A flexible polyurethane foam comprising a reaction product of a reaction mixture that comprisesa) an isocyanate-functional quasi-prepolymer, which isocyanate-functional quasi-prepolymer is a reaction product of at least one hydroxyl-terminated polymer of ethylene oxide with an excess of an organic polyisocyanate that includes at least 80 weight-% diphenylmethane diisocyanate of which diphenylmethane diisocyanate at least 50 weight-% is 4,4′-diphenylmethane diisocyanate, wherein the isocyanate-functional quasi-prepolymer has an isocyanate content of 5 to 15% by weight and contains 30 to 70 weight percent of oxyethylene units, based on the weight of the isocyanate-functional quasi-prepolymer,b) water,c) at least one polymer polyol comprising polymer particles dispersed in at least one base polyol,d) at least one silicone surfactant ande) at least one ethylene oxide/higher alkylene oxide block copolymer, whereini) the quasi-prepolymer constitutes 50 to 75% of the combined weights of components a-e;ii) water constitutes 15-41% of the combined weights of components a-e;iii) the at least one polymer polyol constitutes 8 to 20% of the combined weights of components a-e and the polymer particles constitute 0.5 to 8% of the combined weights of components a-e;iv) the at least one silicone surfactant constitutes 0.5 to 3% of the combined weights of components a-e andv) the at least one ethylene oxide/higher ...

Methods and systems for producing a bio-based cosmetic sponge and blender

Systems, devices, and methods for a cosmetic sponge comprising: a prepolymer material and a bio-based material, where the prepolymer material and the bio-based material are reacted with an additive component comprising water and bio-based material dissolved in the water.

BRANCHED HARD- AND SOFT-BLOCK COPOLYMERS

The invention relates to a branched copolymer containing rigid blocks and flexible blocks, wherein the branchings are made by a polyol residue binding rigid blocks of the copolymer,

Antimicrobial bio polyurethane foam

Disclosed is an antimicrobial bio polyurethane foam, and more specifically abio polyurethane foam: which is polyurethane foam comprising a reaction product of a resin premix, which comprises biopolyol of about 5 to 20 wt %, and isocyanate; applied to a car seat and the like; and which is enhanced in an antimicrobial property through use of the biopolyol.

Novel compositions for polyurethane applications

A process comprising, consisting of, or consisting essentially of: foaming a reaction mixture containing at least one polyisocyanate and an isocyanate-reactive compound comprising at least one alkoxylated triazine-arylhydroxy-aldehyde condensate composition wherein the alkoxylated triazine-arylhydroxy-aldehyde condensate composition is a reaction product of a triazine-arylhydroxy-aldehyde condensate and at least one alkylene carbonate, is disclosed.

Polyurethane composites comprising nanocrystalline cellulose and method for improving properties of polyurethanes thereof

The disclosure relates to polyurethane composites comprising nanocrystalline cellulose and method for improving properties of polyurethanes thereof.

Urethane foam system for molded articles

The technology relates to a process for the production of a soft, viscoelastic polyurethane foam system. The process includes forming a reaction mixture the includes a resin blend and at least one isocyanate. The resin blend includes at least one polyol and a catalyst blend. The catalyst blend includes between about 0.5% to about 1.5% of a mixture of 1,4-butanediol and triethylene diamine and between about 0.005% to about 0.25% of bis (2-dimethylaminoethyl) ether. The process also includes mixing the resin blend and the at least one isocyanate at a ratio of between about 18 to about 32 parts of the at least one isocyanate to about 100 parts resin blend.

Integrated Polyurethane Article

This technology relates to an integrated article that includes (a) a flexible foam region and (b) a non-foam region. The flexible foam region and the non-foam region are each made of a polyurethane composition. In some embodiments, the flexible foam region is a midsole, and wherein the non-foam region is an outsole. The flexible foam region is made from a flexible polyurethane injection molded foam. The non-foam region is made from a non-foamed polyurethane, which may be extruded or thermoformed. The invention relates to this integrated article, as well as the methods of making and using the same.

Polyethers and their use in the production of flexible polyurethane foams

Disclosed are amine-containing polyethers that are the reaction product of a reaction mixture comprising: (a) a polyether of the formula A(OZOX)n where (i) A is a polyether derived from a hydroxyl-functional polyether having a hydroxyl functionality (y) of 1 to 8 and an OH number of 20 to 400 mg KOH/g, wherein the free hydroxyl functionality of A is y-m, wherein m is a number having a value of 1 to 7; (ii) Z is a divalent residue comprising an alkylene oxide moiety; (iii) X is an amine reactive moiety; and (iv) n is a number having a value of 1 to 7; and (b) an amino diphenylamine. Polyol compositions that include an amine-containing polyether polyol are also described, a polymer polyol compositions, polyurethane foams and methods of producing flexible polyurethane foams.

AMINO DIPHENYLAMINE-STARTED POLYETHER POLYOLS, METHODS FOR THEIR PRODUCTION, AND FLEXIBLE POLYURETHANE FOAMS PRODUCED USING SUCH POLYOLS

Polyether polyols are described that are an alkoxylation reaction product of an H-functional starter and an alkylene oxide, in which the H-functional starter includes an amino diphenylamine. Methods for producing such polyether polyols, as well as to the use of such polyether polyols in the production of flexible polyurethane foams is also described. 139-. (canceled)40. A polyether polyol having a hydroxyl number of 10 to 400 mg KOH/g and a number average molecular weight of 200 to 12000 Da , comprising an alkoxylation reaction product of an H-functional starter with an alkylene oxide , wherein the H-functional starter comprises greater than 80% by weight of an amino diphenylamine , based on the total weight of H-functional starter.41. The polyether polyol of claim 40 , having an arithmetically calculated functionality of 1.5 to 6.42. The polyether polyol of claim 41 , having a hydroxyl number of 100 to 400 mg KOH/g.43. The polyether polyol of claim 42 , wherein the H-functional starter comprises at least 90% by weight of amino diphenylamine claim 42 , based on the total weight of H-functional starter used.45. The polyether polyol of claim 44 , wherein the amino diphenylamine comprises 4-aminodiphenylamine claim 44 , 3-aminodiphenylamine claim 44 , 2-aminodiphenylamine claim 44 , 4-amino-4′-methyl diphenylamine claim 44 , 4-amino-4′-methoxy diphenylamine claim 44 , 4-amino-4′-ethoxy diphenylamine claim 44 , 4-amino-4′-(N claim 44 ,N-dimethylamine) diphenylamine claim 44 , and/or 4-amino-4′-isopropyl diphenylamine.46. A polyurethane foam comprising the reaction product of a reaction mixture comprising a polyisocyanate component and the polyether polyol of .47. A polymer polyol composition comprising a dispersion of polymer particles in a base polyol claim 40 , wherein the base polyol comprises the polyether polyol of .48. The polymer polyol composition of claim 47 , wherein the polyether polyol is present in an amount of 0.1 to 10% by weight claim 47 , based on the ...

Vegetable Oil Polyol for Flexible Polyurethane Foam and Preparation Method and Application Thereof

A vegetable oil polyol for flexible polyurethane foam, a preparation method and application thereof. The method includes the following steps: (1) subjecting an epoxidized vegetable oil, a benzoylformic acid, a basic catalyst, and an inert solvent to a ring-opening reaction in a first microchannel reactor of a microchannel reaction device to obtain a vegetable oil polyol; and (2) subjecting the vegetable oil polyol obtained in the step (1), a propylene oxide and an inert solvent to an addition polymerization reaction in a second microchannel reactor of the microchannel reaction device to obtain the vegetable oil polyol for flexible polyurethane foam.

Soles for sports shoes

Improved soles and insoles for shoes, in particular sports shoes, are described. In an aspect, a sole for a shoe, in particular a sports shoe, with at least a first and a second surface region is provided. The first surface region comprises expanded thermoplastic polyurethane (“TPU”). The second surface region is free from expanded TPU.

Inhibition of amine oxidation

In an embodiment, an amine-oxidation inhibitor, such as a free radical scavenger and/or antioxidant, is added to an oxidation-sensitive amine, such as an amine catalyst, to inhibit oxidation of the amine. The inhibitor-treated amine may then be used in an application such as a polyurethane application to reduce the emission of undesired oxidation products from the polyurethane.

Polymer polyol compositions and their use in the production of flexible polyurethane foams

Disclosed are polymer polyol compositions that include an amino diphenylamine, optionally in combination with other antioxidants, such as phenolic antioxidants, as well the use of such polymer polyol compositions in the production of flexible polyurethane foams. The polyurethane foam includes a reaction product of a polyisocyanate component and an isocyanate-reactive component that includes the polymer polyol composition.

Process for the production of high air flow polyether foams and the foams produced by this process

This invention relates to novel polyol blends, a process for the production of foam with very low resistance to air flow from certain polyol blends and to the resultant foams produced from certain polyol blends. The polyol blends comprise one or more monofunctional polyethers having a hydroxyl number of less than 28; one or more polyether polyols having a hydroxyl number of 20 to 240 and containing at least 50% of copolymerized oxyethylene; one or more polyether polyols having a hydroxyl number of 47 to 300 and containing from 5 to 40% of copolymerized oxyethylene; and optionally, one or more polyether polyols having a hydroxyl number of 10 to 45. This process of the invention comprises reacting one or more polyisocyanates, with an isocyanate-reactive component in the presence of at least one catalyst, at least one surfactant and at least one blowing agent. The isocyanate-reactive component comprises one or more monofunctional polyethers having a low hydroxyl number; one or more polyether polyols having a hydroxyl number of 20 to 240 and containing at least 50% of copolymerized oxyethylene; one or more polyether polyols having a hydroxyl number of 47 to 300 and containing from 5 to 40% of copolymerized oxyethylene; and optionally, one or more polyether polyols having a hydroxyl number of 10 to 45.

Composite material with electrostrictive properties for a mechanical energy recovery device

A composite material ( 10 ) with electrostrictive properties for a mechanical energy recovery device ( 100 ) where said composite material comprises a deformable portion ( 12 ) in insulating elastomeric polymer material and a filler material ( 14 ) homogeneously dispersed in the polymer matrix of said deformable ( 12 ) portion, said material or filler ( 14 ) being an insulating ceramic material in the form of particles. The invention also concerns said device ( 100 ) for the recovery of mechanical energy ( 100 ).

Flexible foam with halogen-free flame retardant

The invention relates to flame-retardant flexible polyurethane foams with phosphazene and to methods for producing PUR flexible foams by reacting a component A containing: A1, an isocyanate-reactive component, A2, a propellant containing water, A3, optionally auxiliary agents and additives, and A4, a flame retardant, with B, an isocyanate component. The invention is characterized in that the flame retardant A4 contains a phosphazene according to the formula (I): [PmNmXk] (I), where X independently of one another represents O-aryl or NR-aryl, at least one aryl group is substituted, X can represent a bridge, R is selected from the group of H, C1-C4 alkyl, and aryl, and m represents a number from 1 to 5, particularly preferably 3 or 4, k depends on m and represents a number from 0 to 2m, and the phosphazene does not have any groups which are reactive towards isocyanates.

Method for producing flame retardant polyurethane foams using halogen-free flame retardants

The present invention relates to a process for producing flame-retarded polyurethane foams, in particular flexible polyurethane foams, using halogen-free flame retardants, wherein the resulting flame-retarded polyurethane foams exhibit low emission values coupled with good mechanical properties. The present invention further relates to halogen-free flame retardants.

POLYURETHANE FOAM

A polyurethane foam is disclosed having unique load bearing characteristics rendering it suitable for a variety of applications. The foam exhibits high surface-softness and smoothness properties, making it well-suited for use in articles such as pillows and mattress toppers. However, upon continued application of pressure, the resilience of the foam increases sharply, translating into a remarkable support characteristics that make the foam suitable for use in the seat portions of chairs and sofas, as well as in the base portion of mattresses. The foams therefore address the limitations of conventional, high-resilience and visco-elastic polyurethane foams. A process of making the foam and its use in various articles is also disclosed. 1. A process for the preparation of a polyurethane foam , the process comprising the steps of: i. at least one polyol having an average molecular weight of 6,000-12,000 Da, wherein the polyol has an OH functionality of 2-4,', 'ii. at least one methylene diphenyl diisocyanate having an NCO content of 26-33%, wherein the amount of diisocyanate relative to the amount of polyol is sufficient to give an ISO index of 72-110,', 'iii. at least one surfactant in an amount of 0.4-1.0 per hundred parts polyol,', 'iv. at least one amine catalyst in an amount of 0.2-0.6 per hundred parts polyol,', 'v. water in an amount of 1.5-4.0 per hundred parts polyol, and', 'vi. optionally at least one flame retardant in an amount of 4.0-15.0 per hundred parts polyol;, 'a) mixing together the following ingredients in the amounts specifiedb) curing the mixture resulting from step a).2. The process of claim 1 , wherein the ingredients specified in step a) are mixed at a speed of 2 claim 1 ,000-8 claim 1 ,000 rpm.3. The process of claim 1 , wherein the polyol has a molecular weight of 7 claim 1 ,500-8 claim 1 ,500 Da claim 1 , and the polyol is a polyether polyol and/or has an OH functionality of 2.8-3.2.45-. (canceled)6. The process of claim 1 , wherein the ...

Fiber Reinforced Flexible Foams

A flexible foam composition comprising a flexible foam structure comprising a plurality of struts, and a plurality of fibers, where a majority of the fibers are associated with the struts. The fibers may be thermally conductive fibers. The fibers include, but are not necessarily limited to, homopolymer and/or copolymer fibers having a glass transition temperature (Tg) of −50° C. (−58° F.) or greater, carbon fibers, animal-based fibers, plant-based fibers, metal fibers, and combinations thereof. The presence of fibers can impart to the flexible foam composition greater indentation force deflection (IFD), greater static thermal conductivity, improved compression set, improved height retention or durability, and/or a combination of these improvements. The flexible foam composition may be polyurethane foam, latex foam, polyether polyurethane foam, viscoelastic foam, high resilient foam, polyester polyurethane foam, foamed polyethylene, foamed polypropylene, expanded polystyrene, foamed silicone, melamine foam, among others.

Methods for reducing aldehyde emissions in polyurethane foams

Polyurethane foams are made by curing a reaction mixture that contains an aromatic polyisocyanate, at least one isocyanate-reactive material having an average functionality of at least 2 and an equivalent weight of at least 200 per isocyanate-reactive group, at least one blowing agent, at least one surfactant and at least one catalyst, at least one cyclic 1,3-diketone and at least one aminoalcohol or alkylhydroxylamine. Foams so produced emit low levels of formaldehyde, acetaldehyde and propionaldehyde.

Viscoelastic polyurethane foam with coating

A coated viscoelastic polyurethane foam includes a viscoelastic polyurethane foam having the coating thereon, the viscoelastic polyurethane foam having a resiliency of less than or equal to 20% as measured according to ASTM D3574, and a coating material on and embedded within the viscoelastic polyurethane foam, the coating material including an aqueous polymer emulsion and an encapsulated phase change material.

In-Situ Forming Foam for the Treatment of Vascular Dissections

Systems and methods related to polymer foams for the treatment of blood vessel dissections are generally described. Some embodiments relate to compositions and methods for the preparation of polymer foams, and methods for using the polymer foams. The polymer foams can be applied to or within a dissection caused by an intimal tear in a blood vessel, sealing the dissection and preventing further perfusion thereof. In some embodiments, the polymer foam can be formed within a body cavity (i.e., in-situ foam formation). The foam may be used to fill the dissection as a thrombosing agent. In addition, the foam may be used in conjunction with medical devices such as stents, stent-grafts, balloons, and catheters.

Silicone surfactant for use in polyurethane foams prepared with polyether carbonate polylos

Surfactants for polyurethane foam forming compositions, polyurethane foam forming compositions, and polyurethane foams formed by such compositions. The polyurethane foam forming compositions employ (i) a silicone based surfactant comprising polyether groups pendant from the silicone backbone, and (ii) a polyol component comprising a polyether carbonate polyol, where the surfactant comprises low molecular weight pendant group having a high ethylene oxide content.

Base-catalyzed, long chain, active polyethers from short chain dmc-catalyzed starters

The present invention provides long chain, active polyether polyols which are characterized by a functionality of 2 to 6 and an equivalent weight of 1000 to 2200 Da. These long chain polyethers comprise the alkoxylation product of (1) a starter composition having an equivalent weight of 350 Da or less, with (2) one or more alkylene oxides, in which up to 20% of ethylene oxide may be added as a cap, in the presence of (3) at least one basic catalyst. Suitable starter compositions (1) comprise the alkoxylation product of (a) a low molecular weight polyether having a functionality of 3 and an equivalent weight of less than 350 Da, (b) at least one low molecular weight starter compound comprising glycerin, and (c) propylene oxide or a mixture of propylene oxide and ethylene oxide, in the presence of (d) at least one double metal cyanide catalyst. A process for preparing these long chain polyether polyols is also disclosed.

Urethane foam impregnated with cosmetic composition

The present invention relates to a dry polyether-based urethane foam impregnated with a cosmetic composition.

Low Polyunsaturated Fatty Acid Oils and Uses Thereof

Provided are microalgal oils having a low polyunsaturated fatty acid profile and derivatives of the oils, including acids, esters, epoxides, hydroxylated acids and esters, urethanes, amides, and polymers thereof. Also provided are compositions comprising the oils and their derivatives and their uses in foodstuffs and in industrial and material applications. The compositions include flexible polyurethane foams prepared from the microalgal oils.

Method for producing a multicoat coating

The present invention relates to a method for producing a multicoat coating (M) on a substrate (S) that comprises the following steps: (I) producing a basecoat (B) on the substrate by applying an aqueous basecoat material (b) to the substrate (S), the basecoat material being a two-component coating composition, and (II) producing a clearcoat (K) directly on the basecoat (B) by applying an aqueous clearcoat material (k) directly to the basecoat (B), the clearcoat material being a two-component coating composition. The present invention also relates to the multicoat coatings produced accordingly and also to their use.

Sulfhydryl-functionalized polymeric compositions for medical devices

The present disclosure provides sulfhydryl-modified polymer foams, which may be used for wound dressing materials. For example, the modified materials can include free sulfhydryl group, which can serve as a linker to attach biologically active molecules. For example, sulfhydryl groups can be used to conjugate biologically active polypeptides and/or metals to foam polymers. Methods for using sulfhydryl-modified polymers, such as for wound dressings, are also provided.

Polymer polyol, method for producing the same, and method for producing polyurethane resin

A polymer polyol (I) is provided that is formed of a polyol (A), polymer particles (B) obtained by polymerization of an ethylenically unsaturated compound (b), and an active-hydrogen-containing compound (d) having an aromatic ring and having a number-average molecular weight of 150 to 2,000, wherein a content of (d) is 1 to 20% on the basis of a weight of (B). The polymer polyol of the present invention contains polymer particles having sufficiently small particle diameters, has a low viscosity, and has excellent handleability. A polyurethane resin obtained by using the polymer polyol of the present invention has excellent mechanical strengths such as elongation at break.

Polymer foam material, device & use

Flexible polyurethane (PU) material which comprises a flexible hydrophilic polyurethane foam porous matrix comprising two matrix faces and therebetween a structural matrix framework defining a network of cells, having a cell network surface and therein a network of pores and a powder charge comprising one or more additives loaded in said structural matrix framework wherein said material is a foamed polymer of a system comprising an isocyanate prepolymer or monomer phase and an aqueous phase, wherein said system comprises one or more slurry phases or solid concentrates of said powder charge, or an insoluble portion thereof, as said isocyanate phase or part thereof and/or as said aqueous phase or part thereof and/or in a carrier liquid phase; and/or comprising a powder charge of silver salt loaded in said structural matrix framework in a population of silver salt particles defined by particle size distribution about a mean particle size of greater than or equal to 1 micron, said material comprising silver salt in population of particles corresponding to silver salt comprised in powder charge pre-loading; methods for manufacture thereof, systems for control thereof, devices containing said material and methods for treatment therewith and uses thereof.

Preparation method of flexible polyurethane foam

A preparation method of a flexible polyurethane foam includes the following steps of: (1) subjecting an epoxidized vegetable oil, a benzoylformic acid, a basic catalyst, and an inert solvent to a ring-opening reaction in a first microchannel reactor of a microchannel reaction device to obtain a vegetable oil polyol; (2) subjecting the vegetable oil polyol obtained in the step (1), a propylene oxide and an inert solvent to an addition polymerization reaction in a second microchannel reactor of the microchannel reaction device to obtain a vegetable oil polyol for flexible polyurethane foam; and (3) using the vegetable oil polyol for flexible polyurethane foam obtained in the step (2) as the unique polyol, and subjecting the same and an isocyanate polyol to a foaming reaction to obtain the flexible polyurethane foam.

Flexible polyurethane foam, automobile seat pad, and flexible polyurethane foam production method

Provided is a flexible polyurethane foam having high hardness required for weight reduction of members and having low stress relaxation. A flexible polyurethane foam comprises a structural protein fiber having a length of 0.1 mm to 5 mm.

Hybrid systems consisting of foamed thermoplastic elastomers and polyurethanes

A hybrid material contains a matrix of polyurethane and foamed particles of thermoplastic polyurethane contained therein. A process can be used for producing such hybrid materials and these hybrid materials can be used as bicycle saddles, upholstery and shoe soles.

Flame-resistant polymer polyol dispersion

The invention relates to a process for preparing a flame-resistant polymer-modified polyol having a solids content of 1 to 65 wt. % wherein (i) at least one polyisocyanate and (ii) an olamine are reacted in (iii) a base polyol having at least two active hydrogen containing groups of which more than 50% are primary active hydrogen containing groups and wherein the olamine has at least one phosphonic ester group attached to a tertiary nitrogen atom and contains at least two hydroxyl groups. The invention further relates to a flame-resistant polymer-modified polyol obtainable with the process of the invention, to a process for preparing optionally foamed plastics using the polymer- modified polyol of the invention, and to the use of a polymer-modified polyol for the preparation of flexible polyurethane foams.

Process for producing elastic and tear-resistant polyurethane foams and uses

The invention provides a process for producing polyurethane foams, the foams thus produced and the uses thereof. In the inventive process compositions comprising A) isocyanate-functional prepolymers obtainable by the reaction of A1) aliphatic, low molecular weight diisocyanates of molar mass from 140 to 278 g/mol with A2) polyalkylene oxides having an OH functionality of two or more, A3) optionally further isocyanate-reactive components not covered by A2), B) water in an amount of at least 2% by weight, based on the total weight of the composition; C) optionally heterocyclic 4-membered or 6-membered ring oligomers of low molecular weight, aliphatic diisocyanates having a molar mass of 140 to 278 g/mol; D) optionally catalysts; E) optionally salts of weak acids, the corresponding free acids of which have a pKA in water at 25° C. of ≥3.0 and ≤14.0; F) optionally surfactants; G) optionally mono- or polyhydric alcohols or polyols, and H) optionally hydrophilic polyisocyanates obtainable by reaction of H1) low molecular weight, aliphatic diisocyanates of molar mass from 140 to 278 g/mol and/or polyisocyanates preparable therefrom and having an isocyanate functionality of 2 to 6 with H2) monofunctional polyalkylene oxides of OH number from 10 to 250 and of ethylene oxide content from 50 to 100 mol %, based on the total amount of the oxyalkylene groups present, are provided, foamed and cured, wherein the isocyanate-containing components, especially components A), C) and H), have a total isocyanate content within a range from 2% to 8% by weight and a content of urethane groups of 1.0 to 3.5 mol/kg, based in each case on the total amount of the isocyanate-containing components.

Production of pu foams

Process for producing PU foams by reacting at least one polyol component with at least one isocyanate component in the presence of one or more catalysts that catalyze the isocyanate-polyol and/or isocyanate-water and/or isocyanate trimerization reactions, and optionally one or more chemical or physical blowing agents, with use of SiOC-linked, linear polydialkylsiloxane-polyoxyalkylene block copolymers having repeat (AB) units, obtainable through the reaction of polyether diols with equilibrated α,ω-diacetoxypolydialkylsiloxanes, wherein a sufficient amount of the SiOC-linked, linear polydialkylsiloxane-polyoxyalkylene block copolymers having repeat (AB) units is added such that the proportion by mass of said component based on the finished PU foam is from 0.0001% to 10% by weight, preferably 0.01% to 6% by weight, especially 0.05% to 5% by weight.

Curable resin composition

A polymer resin composition free of solvent and adapted for in situ curing including: (a) at least one epoxy resin compound; (b) at least one isocyanate compound; and (c) a catalyst system including a combination of at least one primary catalyst and at least one secondary catalyst; wherein the primary catalyst includes (ci) at least one organoantimony catalyst; and wherein the secondary catalyst includes (cii) a nitrogen-containing catalyst; and a process for preparing the above composition.

Method of reducing odors of lipid-based polyols

A method of reducing odors in lipid-based polyol. At least one lipid-based polyol is provided, and mixed with ricinoleic acid and/or a metal salt of ricinoleic acid. Isocyanate may be added, preferably toluene diisocyanate (TDI). The polyol, and the isocyanate when present, are reacted in the presence of the ricinoleic acid and/or a metal salt of ricinoleic acid which reduces or removes odors in the lipid-based polyol. When isocyanate is used, low, limiting levels are preferred, well below the level required to fully react with all of the polyol. Tin, zinc, sodium, and calcium ricinoleic acid metal salts are particularly preferred. Preferably the reaction takes place without added heat, at room temperature. The reaction may be performed in a chamber which is under at least a partial vacuum.

POLYURETHANE FOAMS HAVING IMPROVED MECHANICAL PERFORMANCE

A polyurethane foam material having the following properties: 1. A reaction system for making a polyurethane foam material having a compression hardness at 10% according to ISO 3386/1 higher than 60 kPa and lower than 120 kPa; a free rise density in the range 40-80 kg/maccording to ISO 845 , a flexural modulus according to ISO 1209-2 in range 0.95-2 MPa , said reaction system comprising at least:a polyisocyanate composition with isocyanate functionality between 2.2 and 2.7, and a) at least one polyoxyethylene based polyether, polyester or polyether polyester polyol having an average nominal hydroxyl functionality in the range 2.5-3.5, an hydroxyl value above 350 and an ethylene oxide content >85% by weight, and', 'b) at least one polymer polyetherpolyol having a molecular weight in the range 2000-7000 and having solid particles in the range of 20-45 wt % calculated on the total weight of the polymer polyol', 'wherein the amount of the polymer polyetherpolyol is 50-70 wt % calculated on the total weight of the isocyanate reactive composition (a)+b)); and, 'an isocyanate reactive composition comprising'}optional chain extenders, andcatalysts, andwater and/or other blowing agents.2. The reaction system according to wherein the foam is having a flexural stress (bending) at maximum load according to ISO 1209-2 in the range 120-180 kPa.3. The reaction system according to wherein the foam is having a free rise density in the range 45-65 kg/mmeasured according to ISO 845.4. The reaction system according to wherein the foam is having a compression set at 70° C. according to ISO 1856 lower than 40%.5. The reaction system according to wherein the foam is having a compression hardness at 10% according to ISO 3386/1 in the range 70-110 kPa.6. The reaction system according to wherein the foam is having a flexural modulus according to ISO 1209-2 in the range 0.95-1.75 MPa.7. The reaction system according to wherein the polyisocyanate composition has an isocyanate functionality ...

METHODS FOR REDUCING ALDEHYDE EMISSIONS IN POLYURETHANE FOAMS

Polyurethane foams are made by curing a reaction mixture that contains an aromatic polyisocyanate, at least one isocyanate-reactive material having an average functionality of at least 2 and an equivalent weight of at least 200 per isocyanate-reactive group, at least one blowing agent, at least one surfactant, at least one catalyst, and certain aldehyde-suppressing additives. Foams so produced emit low levels of formaldehyde, acetaldehyde and propionaldehyde. 3. The process of wherein R claim 1 , R claim 1 , Rand Rare each independently C1-C4 alkyl.4. The process of wherein m is 1 and A is hydrogen claim 3 , hydroxyl claim 3 , —NHor alkyl.5. The process of wherein m is 2 or more and A is —O— claim 3 , —NH— claim 3 , alkylene claim 3 , arylene claim 3 , aryl-substituted alkylene claim 3 , aryl-substituted alkylene claim 3 , —NH—C(O)—(CH)—C(O)—NH— where 0 is 1 to 20 claim 3 , or —O—C(O)—(CH)—C(O)—O— where o is 1 to 20.7. The process of wherein Ris C1-C4 alkyl and Ris hydrogen or C1-C4 alkyl.9. The method of wherein the compound represented by structure I is present in an amount of from 0.02 to 0.25 parts by weight per 100 parts by weight of the at least one isocyanate reactive compound having at least two isocyanate-reactive groups per molecule and an equivalent weight of at least 200 per isocyanate-reactive group.10. The method of wherein the compound represented by structure II is present in an amount of from 0.02 to 0.25 parts by weight per 100 parts by weight of the at least one isocyanate reactive compound having at least two isocyanate-reactive groups per molecule and an equivalent weight of at least 200 per isocyanate-reactive group.11. The method of wherein the reaction mixture is cured in the presence of an antioxidant.12. The method of wherein the antioxidant is a phenolic compound.13. The method of wherein the antioxidant is present in an amount of 0.2 to 1.5 parts by weight per 100 parts by weight of the at least one isocyanate reactive compound having at ...

Method for the Preparation of Microcellular Polyurethane Elastomers

This invention relates to a method of preparing a microcellular polyurethane elastomer by reacting naphthalene diisocyanate with a polyol to prepare a prepolymer containing an isocyanate (NCO) group, followed by mixing the prepared polyurethane prepolymer with a plasticizer, water, an emulsifier and the like, and then foaming the prepolymer blend to prepare a polyurethane elastomer, wherein the emulsifier is a mixture of (a) a compound selected from the group consisting of 2,4-toluene diisocyanate, 2,6-toluene diisocyanate, 2,4-diphenylmethane diisocyanate, 4,4′-diphenylmethane diisocyanate, hexamethylene diisocyanate, 1,4′-cyclohexane diisocyanate and mixtures thereof, and (b) a C 2-10 hydrocarbon having a molecular weight of 500 or less with two to four hydroxyl groups, or mixtures thereof. The method of the invention can optimize the viscosity and properties of the prepolymer resulting from the reaction of naphthalene diisocyanate with a polyol, thus improving processability.

Polyurethane foam system

A polyurethane foam-forming reaction mixture composition including: (I) an organic isocyanate; and (II) an admixture of: (a) at least one autocatalytic polyol; (b) at least one ethylene oxide (EO)-capped polyol; (c) at least one reactive blowing catalyst; (d) at least one surfactant; and (e) water; and a polyurethane foam prepared from the above polyurethane foam-forming reaction mixture composition.

Metathesized triacylglycerol polyols for use in polyurethane applications and their related properties

Metathesized triacylglycerol polyols and their related physical and thermal properties are disclosed. Such metathesized triacylglycerol polyols are also used as a component of polyurethane applications, including polyurethane foams.

Polymer polyols comprising a polyether carbonate polyol as the base polyol

This invention relates to polymer polyols comprising the free-radical polymerization product of a base polyol, at least one ethylenically unsaturated monomer, and, optionally, a preformed stabilizer, in the presence of at least one free-radical polymerization initiator and at least one chain transfer agent, in which the base polyol is a polyether carbonate polyol. A process for preparing these polymer polyols is also described. This invention also relates to a polyurethane foam prepared from these polymer polyols and to process for the preparation of these polyurethane foams.

Polishing pad production method

The present invention includes a polishing pad production method comprising a step of forming one or more grooves in a surface of a polishing layer comprising a flexible polyurethane foam, wherein the flexible polyurethane foam has an Asker D hardness of 30 or less at 25° C., and the step comprises a step 1 of cooling the polishing layer to adjust the Asker D hardness of the flexible polyurethane foam to 35 or more, and a step 2 of forming one or more grooves in the surface of the polishing layer comprising the flexible polyurethane foam, the Asker D hardness of which has been adjusted by the cooling. According to the polishing pad production method of the present invention, it is possible to provide a polishing pad production method capable of performing grooving in a polishing layer with a high precision when the polishing layer comprises a flexible polyurethane foam.

Polyurethane foam composition

The invention relates to a polyurethane composition, which is used for the manufacture of products for the industry and households, in particular in the manufacturing of mattresses, sofas, seats, chairs, and underwear. The polyurethane foam composition, according to the invention consists of polyol, organic polyisocyanate, catalyst, foaming agent, polymerization initiator, stabilizer, additives, and contains powdered amber or powdered amber resin with particle size within the range of microns. The composition provides versatile application, possessing properties beneficial to health, such as stimulating metabolism, relieving asthmatic and allergic respiratory problems, helping the overcoming of physical pain, and eliminating negative energy.

Novel polymer polyol compositions, a process for preparing these novel polymer polyol compositions, flexible foams prepared from these novel polymer polyols and a process for the preparation of these flexible foams

This invention relates to novel polymer polyols, to a process for preparing these novel polymer polyols, to flexible polyurethane foams comprising these novel polymer polyols, and to a process for the production of these flexible polyurethane foams. These novel polymer polyols provide unexpected improvements in foams prepared therefrom.

Viscoelastic foam with slow recovery time

Recovery times of flexible polyurethane foams are increased by treatment with a pressure sensitive adhesive. An emulsion or dispersion of the adhesive in an aqueous carrier liquid is impregnated into the foam, with subsequent removal of the carrier. This invention is of special interest when the glass transition temperature of the starting foam is 16° C. or lower.

Vegetable oil based polyols and polyurethanes made therefrom

Polyols useful in the manufacture of polyurethanes are disclosed. The polyols are prepared by reacting a vegetable oil based (hydroxymethyl containing) monomer with a polyol, polyamine or aminoalcohol under vacuum.

Process to manufacture polyurethane products using polymer polyols in which the carrier polyol is a tertiary amone based polyol

The present invention pertains to a copolymer polyols based on tertiary amine based polyols and to polyurethane products made therefrom. The use oof such copolymer polyols reduces the amount of amine catalysts needed for the production of polyurethane foam.

Low emission polyurethane polymers made with autocatalytic polyols

The present invention discloses a process for producing a polyurethane product with autocatalytic polyols. These auto-catalytic polyols are based on an initiator of the formula (I): HmA-(CH2)n-N(R)-(CH2)p-AHm where n and p are independently integers from 2 to 6, A at each occurrence is independently oxygen, nitrogen or hydrogen, with the proviso that only one of A can be hydrogen at one time, R is a C1 to C3 alkyl group, m is equal to 0 when A is hydrogen, is 1 when A B is oxygen and is 2 when A is nitrogen; or are polyols which contain an alkyl amine of within the polyol chain or a dialkylylamino group pendant to the polyol chain wherein the polyol chain is obtained by copolymerization of at least one monomer containing an alkyl aziridine or N, N-dialkyl glycidylamine with at least one alkylene oxide. These auto-catalytic polyols are reacted with a polyisocyanate in the presence of other additives and/or auxiliary agents known per se to produce polyurethane products.

Amine-epoxy autocatalytic polymers and polyurethane products made therefrom

The present invention pertains to low emission polyurethane products based on autocatalytic polymers made by reaction of epoxide resins with compounds containing secondary and/or tertiary amines bearing a reactive hydrogen and to processes for their manufacture.

Process to manufacture flexible polyurethane foams

The present invention is to the production of flexible polyurethane foam in the absence of an amine catalyst. The reactivity of the foam forming system can be controlled by the addition of an autocatalytic polyol containing a tertiary amine where the amount of autocatalytic polyol comprises less than 5 percent by weight of the total polyol.

Hybrid systems consisting of foamed thermoplastic elastomers and polyurethanes

The invention relates to a hybrid material containing a matrix consisting of polyurethane and foamed particles of thermoplastic polyurethane contained in said matrix and to a method for producing hybrid materials of this type. The invention also relates to the use of said hybrid materials in bicycle saddles, padding and shoe soles.

Antimicrobial polyurethane foam

Flexible cellular polyurethane foam products are described. The foams are primarily comprised of: (a) a polyisocyanate component selected from the group consisting of toluenen diisocyanate (TDI), methylene diisocyanate (MDI), monomeric methylene diisocyanate (MDI), polymeric methylene diisocyanate (MDI), toluene diisocyanate (TDI) prepolymer, methylene diisocyanate (MDI) prepolymer, and combinations thereof; (b) an aqueous component including a polyol or polyol blend, or alternatively, a polyol or polyol blend component; and (c) a controlled release antimicrobial component. The resulting flexible cellular polyurethane foam products, containing the antimicrobial component, are suitable for use as wound dressings, or other skin contact (e.g., medical and/or cosmetic) applications.

Production of functionalized polyurethane foams, e.g. used as adsorbent, comprises preparing foam incorporating bifunctional reagent and reacting active compound with reagent

Production of functionalized polyurethane foams comprises: (a) reacting an isocyanate with a compound having at least two isocyanate-reactive hydrogen atoms and a compound (I) having at least one hydroxy, amino and/or thiol group and at least one group R selected from halogen, carbonyl, ester, anhydride, epoxy, carboxy and sulfone groups; and (b) applying an R-reactive compound (II) to the resulting polyurethane foam so that (II) is covalently bound to (I) through R. An independent claim is also included for polyurethane foams produced by the above method.

Light-stable elastomeric polyurethane mouldings and process for the production thereof

Process for the preparation of flexible polyester polyurethane foams

Process for the preparation of flexible polyesterpolyurethane foams by reacting at least bifunctional polyesterols with at least bifunctional organic isocyanates in the presence of catalysts and of a stabiliser mixture of organic and organosilicon compounds, water, optionally blowing agents and optionally conventional additives, in which a stabiliser mixture is used which consists of … …  a) a (meth)allylpolyoxyalkylene ether polymer or a copolymer thereof with vinylmonomers and …  b) a polyoxyalkylene-polysiloxane block copolymer, the weight ratio of a : b being 1 : 9 to 9 : 1. … …<??>The polyester foams obtained have a high content of open cells and can be punched without edge adhesion.

Process for the preparation of polyurethane cold foams

Gegenstand der Erfindung ist ein Verfahren zur Herstellung von Polyurethan-Kaltschäumen durch Umsetzung eines Gemisches aus hochreaktiven Polyolen, welche üblicherweise ein mittleres Molekulargewicht zwischen etwa 4800 und 6500 g/mol und mindestens 70% primäre Hydroxylgruppen aufweisen und gegebenenfalls Füllstoffe enthalten, polyfunktionelle Isocyanate, Aminaktivatoren, Vernetzer, Zinnkatalysatoren, Treibmittel und Stabilisatoren, welches dadurch gekennzeichnet ist, dass man als Stabilisatoren Verbindungen der allgemeinen Formel (1) verwendet, DOLLAR F1 wobei der Anteil an Siloxanen mit N > 9 höher als 10 Gew.-% und N > 12 gleich oder höher als 5 Gew.-% ist. The invention relates to a process for the production of cold polyurethane foams by reacting a mixture of highly reactive polyols, which usually have an average molecular weight between about 4800 and 6500 g / mol and at least 70% primary hydroxyl groups and optionally contain fillers, polyfunctional isocyanates, amine activators, Crosslinking agents, tin catalysts, blowing agents and stabilizers, which is characterized in that compounds of the general formula (1) are used as stabilizers, DOLLAR F1, the proportion of siloxanes with N> 9 being greater than 10% by weight and N> 12 being equal to or is higher than 5% by weight.

Verfahren zur Herstellung thermostabiler Polyurethanweichschaumstoffe

Amine catalysts suitable for the production of low-emission, re-catalyst-stable flexible polyurethane foams

Der Gegenstand der vorliegenden Erfindung betrifft die Verwendung eines reaktiven Aminkatalysators, insbesondere Diethylaminoethoxyethanol und/oder Diethylethanolamin, in wässrigen oder organischen Lösungen zur Herstellung von Polyurethanweichschaumstoffen mit erhöhter Rekatalysestabilität, sowie eine Katalysatorkombination, enthaltend wenigstens einen erfindungsgemäß verwendbare reaktiven Aminkatalysator, und wenigstens eine Kalium-, Zinn- und/oder Zink-organische-Verbindung; und/oder wenigstens ein tertiäres Amin, ausgewählt aus der Gruppe, umfassend Triethylendiamin, Triethylamin und/oder Silamorpholin; und/oder wenigstens ein säureblockiertes Derivat eines tertiären Amins. The present invention relates to the use of a reactive amine catalyst, in particular diethylaminoethoxyethanol and / or diethylethanolamine, in aqueous or organic solutions for producing flexible polyurethane foams having increased recatalyst stability, and a catalyst combination comprising at least one reactive amine catalyst usable in accordance with the invention and at least one potassium, Tin and / or zinc-organic compound; and / or at least one tertiary amine selected from the group comprising triethylenediamine, triethylamine and / or silamorpholine; and / or at least one acid-blocked derivative of a tertiary amine.

Polyurethane foams for use in wound dressings

The invention provides a method of forming a polyurethane foam suitable for use as a wound-contacting layer, said method comprising: mixing 1 part by weight of an isocyanate-capped prepolymer having from 0.5 to 4.8 meq. NCO groups/ g with from 0.4 to 1.0 parts by weight of water and an effective amount of a nonvolatile pharmaceutically acceptable acid to form a prepolymer mixture; allowing said prepolymer mixture to cure to form a foamed product; followed by drying the foamed product. The invention also provides acidified polyurethane foams obtainable by this method, and wound dressings comprising such foams.

Tissue engineering scaffold comprising polyurethane material having voids interconnected by pores

A tissue engineering scaffold for cell, tissue or organ growth comprises a biocompatible porous polyurethane cellular material comprising a plurality of substantially spherical voids of diameter from 20 to 300 microns, preferably 80 to 200 microns, interconnected by generally elliptically shaped pores. The cellular material has a void content of from 85% to 98% and a surface area to volume of from 5 to 400 mm 2 /mm 3 , ideally from 20 to 80 mm 2 /mm 3 .

Sohlen für Sportschuhe

Es werden verbesserte Sohlen und Innensohlen für Schuhe, insbesondere Sportschuhe, beschrieben. In einem Aspekt wird eine Sohle für einen Schuh, insbesondere einen Sportschuh, mit zumindest einem ersten und einem zweiten Flächenbereich bereitgestellt. Der erste Flächenbereich weist ein expandiertes thermoplastisches Polyurethan (TPU) auf. Der zweite Flächenbereich ist frei von expandiertem TPU.

Soles for sports shoes

Improved soles (210,310,410,510) and insoles for shoes (200,300,400,500), in particular sports shoes, are described. In an aspect, a sole for a shoe, in particular a sports shoe, with at least a first (211,311,411,511) and a second (212,312,412,512) surface region is provided. The first surface region (211,311,411,511) comprises expanded thermoplastic polyurethane (TPU). The second surface region (212,312,412,512) is free from expanded TPU.

IN-SITU FORMATION OF LOW DENSITY THERMOPLASTIC POLYURETHANE FLEXIBLE FOAMS

A reactive mixture and method for making a thermoplastic polyurethane (TPU) flexible foam having a predominantly open-cell structure (open-cell content of ≥50% by volume calculated on the total volume of the foam and measured according to ASTM D6226-10) and an apparent density below 200 kg/m.

Stable dispersant and application thereof in preparing copolymer polyols

Preparation of polyurethane systems

The invention relates to a process for producing polyurethanes using a component A comprising a polyhydrazide, a polysemicarbazide, a polysulfonyl hydrazide and/or carbodihydrazide, in particular a polyhydrazide, wherein the component A is employed in the form of a mixture C which further comprises a component B comprising a dispersion medium.

polymer manufacturing process

Isocyanate-based polymer foam and process for production thereof

An isocyanate-based polymer foam comprising an isocyanate-based polymer foam matrix having disposed therein a particulate material having an enthalpy of endothermic phase transition of at least about 50 J/g. A process for producing the foam is also described. During the process, the particulate material acts as a heat sink and will undergo an endothermic phase change by absorbing a significant portion of the heat of reaction liberated during the process. This improves the safety of the process by lowering the maximum exotherm experienced by the foam and/or improves product properties.