СПОСОБ ПОЛУЧЕНИЯ СОДЕРЖАЩИХ АЛЬГИНАТ ПОРИСТЫХ ФОРМОВАННЫХ ИЗДЕЛИЙ

Изобретение относится к способу изготовления содержащих альгинат пористых формованных изделий, к изделиям, полученным этим способом, и применению этих изделий. Задачей изобретения является создание относительно крупноформатных формованных изделий с высокой однородностью на основе соединений альгинатов с поливалентными ионами металла, которые обладают высокой прочностью на разрыв во влажном состоянии, способны резаться на тонкие слои обычными режущими устройствами, имеют привлекательный внешний вид, так как обладают высокой степенью белизны, могут применяться в косметических или медицинских целях в качестве косметических прокладок для кожи или медицинских повязок для ран. Кроме того, необходимо обеспечить возможность получения толстых однородных пористых слоев альгината, необходимых для изготовления простым способом, прессованием и/или высечкой, соответствующих (применяемых также перорально) косметических или медицинских аппликационных форм: формованных изделий-имплантатов, таблеток насыщения ...

СПОСОБ ИЗГОТОВЛЕНИЯ ТВЕРДЫХ ПОЛИУРЕТАНОВЫХ ПЕНОМАТЕРИАЛОВ

Изобретение относится к способу изготовления полиуретановых твердых пеноматериалов (пенопластов) путем взаимодействия полиизоцианатов с соединениями, имеющими по меньшей мере два способных реагировать с изоцианатными группами атома водорода, в присутствии порообразователей. Описан способ изготовления твердых полиуретановых пеноматериалов путем взаимодействия a) по меньшей мере одного полиизоцианата с b) соединениями по меньшей мере с двумя атомами водорода, способными реагировать с изоцианатами, и c) по меньшей мере одним порообразователем, отличающийся тем, что для соединений b) по меньшей мере с двумя атомами водорода, способными реагировать с изоцианатами, используют смесь из b1) по меньшей мере одного простого полиэфироспирта с гидроксильным числом от 380 до 500 мг КОН/г, синтезируемого путем присоединения бутиленоксида, необязательно в комбинации по меньшей мере с еще одним алкиленоксидом, к по меньшей мере одному соединению-стартеру с функциональными группами ОН или NH и функциональностью ...

КОМПОЗИЦИИ ДЛЯ ПОЛУЧЕНИЯ ЖЕСТКИХ ПЕНОПОЛИУРЕТАНОВ ТЕПЛОИЗОЛЯЦИОННОГО НАЗНАЧЕНИЯ

Изобретение относится к области получения композиций для производства жестких пенополиуретанов (ППУ), применяемых в качестве теплоизоляционных материалов в различных областях промышленности и получаемых методом заливки или методом напыления на машинах высокого и низкого давления. Композиции для жестких пенополиуретанов, получаемых методом заливки, включают смесь простых и сложных полиэфирполиолов, катализаторы, вспенивающий агент, антипирен, пенорегулятор, воду, мономерную добавку и полиизоцианатный компонент, где в качестве катализаторов для композиций используют катализатор уретанообразования - диметилэтаноламин и сокатализатор - диметилбензиламин или катализатор уретанообразования - диметилэтаноламин и катализатор полициклотримеризации - 1,3,5трис(3-диметиламино)пропил-гексагидро-s-триазин. Композиции для жестких пенополиуретанов, получаемых методом напыления, в качестве катализаторов для композиции используют катализатор уретанообразования - диметилэтаноламин и катализатор полициклотримеризации ...

СПОСОБЫ ПРОИЗВОДСТВА ВОДНОЙ ЭМУЛЬСИИ, ТОНКОДИСПЕРСНОГО ПОРОШКА И РАСТЯНУТОГО ПОРИСТОГО ТЕЛА ИЗ МОДИФИЦИРОВАННОГО ПОЛИТЕТРАФТОРЭТИЛЕНА

Настоящее изобретение относится к способу получения водной эмульсии модифицированного политетрафторэтилена, способу получения тонкодисперсного порошка модифицированного политетрафторэтилена и способу получения растянутого пористого тела модифицированного политетрафторэтилена. Способ получения водной эмульсии модифицированного политетрафторэтилена представляет собой способ получения водной эмульсии неплавленолитых частиц модифицированного политетрафторэтилена, имеющих средний диаметр первичных частиц от 0,10 до 0,30 мкм, в котором тетрафторэтилен и перфторалкилэтилен, представленный следующей формулой (1), подвергают эмульсионной полимеризации в водной среде с использованием инициатора полимеризации в присутствии фторированного анионного поверхностно-активного вещества, имеющего LogPOW от 2,4 до 3,4, где фторированное анионное поверхностно-активное вещество представляет собой фторированное поверхностно-активное вещество, имеющее 6 или 7 атомов углерода, 0 или 1 атом водорода, 0 или от 1 ...

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 ...

СПОСОБ ПОЛУЧЕНИЯ АЭРОГЕЛЕЙ ИЛИ КСЕРОГЕЛЕЙ

Настоящее изобретение относится к способу получения пористых материалов в виде аэрогелей или ксерогелей и к получаемым таким образом аэрогелям и ксерогелям, а также к применению аэрогелей и ксерогелей в качестве изолирующего материала и в вакуумных изоляционных панелях. Описан способ получения аэрогеля или ксерогеля, включающий взаимодействие нижеуказанных компонентов (а1) и (а2) в присутствии растворителя и, по меньшей мере, одного катализатора, причем взаимодействие осуществляют в отсутствие воды: (а1) по меньшей мере, один многофункциональный изоцианат, и (а2) по меньшей мере, один многофункциональный замещенный ароматический амин (a2-s) общей формулы I, где Rи Rмогут быть одинаковыми или различными и независимо друг от друга выбраны из водорода и линейных или разветвленных алкильных групп с 1-6 атомами углерода и где все заместители Qдо Qи Qдо Qодинаковы или различны и независимо друг от друга выбраны из водорода, первичной аминогруппы и линейной или разветвленной алкильной группы с ...

СПОСОБ ПОЛУЧЕНИЯ ПОРИСТЫХ МАТЕРИАЛОВ НА ОСНОВЕ ПОЛИМОЧЕВИН

Изобретение относится к способу получения пористого материала и его применению. Способ получения пористого материала заключается в том, что проводят взаимодействие, (а1) по меньшей мере, одного многофункционального изоцианата, (а2) по меньшей мере, одного многофункционального замещенного ароматического амина, и (а3) воды в присутствии растворителя. Многофункциональный замещенный ароматический амин соответствует общей формуле I:где Rи Rмогут быть одинаковыми или разными и независимо друг от друга их выбирают из атома водорода и линейных или разветвленных алкильных групп с числом атомов углерода от одного до шести. Все заместители от Qдо Qи от Q′ до Q′ являются одинаковыми или разными, и независимо друг от друга их выбирают из водорода, первичной аминогруппы и линейной или разветвленной алкильной группы с числом атомов углерода от одного до двенадцати. При этом алкильная группа может нести другие функциональные группы при условии, что соответствующее общей формуле I соединение содержит, по ...

ВСПЕНИВАЕМАЯ КОМПОЗИЦИЯ, ЕЕ ПРИМЕНЕНИЕ ДЛЯ ПОЛУЧЕНИЯ ВСПЕНЕННЫХ ПРОДУКТОВ, ПРОДУКТ, СОДЕРЖАЩИЙ, ПО МЕНЬШЕЙ МЕРЕ, ОДИН ВСПЕНЕННЫЙ СЛОЙ, И СПОСОБ ЕГО ПОЛУЧЕНИЯ

Вспениваемая композиция для получения вспененных продуктов содержит поливинилхлорид, первичный пластификатор, при необходимости, другие добавки и в качестве сложного алкилового эфира бензойной кислоты изонониловый эфир бензойной кислоты в количестве от 5 до 95 мас.%, считая на массу всего имеющегося пластификатора, что составляет 10 до 400 мас.ч. на 100 мас.ч. поливинилхлорида. Способ получения продукта, содержащего, по меньшей мере, один вспененный слой поливинилхлорида состоит в нанесении вспениваемой композиции на носитель, до или после нанесения ее вспенивают и в заключение термически обрабатывают. Продукт представляет собой покрытие для полов, искусственную кожу и обои. Технический результат - снижение вязкости композиции, температуры ее желатинирования, что ведет к простой и более быстрой переработке композиции. 4 н. и 7 з.п. ф-лы, 8 табл.

СПОСОБ ПОЛУЧЕНИЯ ПОЛИУРЕТАНОВОЙ ПЕНЫ

Изобретение относится к способу получения полиуретановой пены, полиуретановой пене, полученной таким способом, а также к формованному изделию, содержащему полиуретановую пену. В способе получения полиуретановой пены простой полиэфир полиола и полиизоцианат взаимодействуют в присутствии пенообразующего реагента, металлов, входящих в состав композиционного катализатора на основе металлцианидного комплекса, в количестве от 1 до 30 весовых частей (ppmw) на миллион частей простого полиэфира полиола и являющегося фосфорной кислотой соединения, состоящего из фосфорной кислоты, выбираемой из числа ортофосфорной кислоты, полифосфорной кислоты и полиметафосфорной кислоты и/или неполного сложного эфира подобной фосфорной кислоты, в количестве от 0,5 до 100 весовых частей (ppmw) на миллион частей простого полиэфира полиола. Технический результат - получение полиуретановой пены, обладающей улучшенной порораскрытостью. 3 н. и 6 з.п. ф-лы, 2 пр.

ПЕРОКСИДНАЯ МАТОЧНАЯ СМЕСЬ НА ОСНОВЕ БИОСМОЛЫ

Изобретение относится к маточной смеси, содержащей один или более органических пероксидов, распределенных в биосмоле, а также изобретение относится к способу получения указанной маточной смеси и к использованию указанной маточной смеси для модификации полимера. Маточная смесь содержит от 4 до 40 мас.% одного или более органических пероксидов в жидком виде, распределенных в полимерной матрице, содержащей по меньшей мере 50 мас.% биосмолы, где полимерная матрица имеет пористость, выраженную в виде процентной доли пустот в объеме матрицы, составляющую от 2,5 до 70 об.%, и концентрация воды в маточной смеси поддерживается на уровне 2000 ч./млн или менее в расчете на суммарную массу маточной смеси, причем биосмола представляет собой полилактид. Маточная смесь по изобретению подходит для улучшения совместимости биополимерных смесей, а также модификации полилактида для повышения прочности его расплава за счет длинноцепочечной разветвленности. 3 н. и 7 з.п. ф-лы, 4 пр.

ТЕПЛОПЕРЕДАЮЩИЕ КОМПОЗИЦИИ, СОДЕРЖАЩИЕ ФТОРАЛКЕНЫ, И СПОСОБ ПЕРЕДАЧИ ТЕПЛА

Изобретение относится к теплопередающим композициям для использования в системах кондиционирования воздуха, включающим, по меньшей мере, один фторалкен формулы II: ! ! где каждый из R независимо означает Cl, F, Br, I или Н; R' означает (СR2)nY; Y означает СF3; и n равно 0 или 1, и где, по меньшей мере, один R у ненасыщенного концевого углерода не является F; и, по меньшей мере, один адьювант. Причем названный фторалкен имеет потенциал глобального потепления (ПГП) не более чем приблизительно 150, количество фторалкена формулы II составляет не менее 50% от веса композиции. Адьювант выбран из группы, состоящей из смазочных материалов, агентов совместимости, поверхностно-активных веществ, солюбилизирующих агентов или комбинации двух или более этих адьювантов. Также изобретение относится к способу передачи тепла к или от воздуха, включающему принудительный фазовый переход у фторалкена формулы II в теплопередающей композиции. Технический результат - снижение термодинамического кпд хладагента ...

ПОЛИОЛЕФИНОВЫЕ ДИСПЕРСИИ, ПЕНЫ И ПЕНОМАТЕРИАЛЫ

Изобретение относится к медицине. Описаны полиолефиновые дисперсии, пены и пеноматериалы и изделия, изготовленные из них. Также описывается и способ получения из водной дисперсии термопластичного пеноматериала. Водная дисперсия может содержать термопластичную смолу, воду и стабилизатор. Способ может включать добавление к водной дисперсии, по меньшей мере, одного вспенивающего поверхностно-активного вещества для получения смеси, добавление антипирена и/или материала с обратимыми фазами, вспенивание смеси для получения пены и удаление, по меньшей мере, части воды для получения пеноматериала. Пеноматериалы имеют улучшенные характеристики огнестойкости при одновременном сохранении их базовой функции. 4 н. и 10 з.п. ф-лы, 9 табл., 2 ил.

ПОЛИМЕРНАЯ КОМПОЗИЦИЯ ДЛЯ ИЗГОТОВЛЕНИЯ ВСПЕНЕННОГО МАТЕРИАЛА НА ОСНОВЕ ПОЛИФЕНОЛА И СПОСОБ ЕГО ПОЛУЧЕНИЯ

Изобретение относится к полимерным композициям для получения вспененного материала на основе полифенола, содержащим изоцианат, кислотный катализатор и танины. Композиция имеет смешанную танин-фуран-изоцианатную структуру, в которой танины входят в состав смолы, выполняющей для композиции функцию реагента, при этом указанная смола представляет собой полифенольную смолу на основе танина, включающую, по меньшей мере, вещество, вступающее в реакцию с танинами в присутствии кислотного катализатора, и, по меньшей мере, вещество, вступающее в реакцию с изоцианатом в присутствии кислотного катализатора, и абсолютно не содержит низкокипящих растворителей. Количество изоцианата составляет не менее 10% от массы композиции. Композиция предназначена для получения вспененных материалов при использовании установок, применяемых для получения полиуретановых вспененных материалов. Изобретение обеспечивает улучшение механической прочности и огнестойкости вспененного материала. 3 н. и 12 з.п. ф-лы, 7 пр., ...

БЛОЧНЫЕ ВСПЕНИВАЕМЫЕ ПОЛИМЕРНЫЕ КОМПОЗИЦИИ

Изобретение относится к вспениваемой полимерной композиции, которая содержит: а) от 60 мас. % до 88 мас. % винилароматического полимера и/или винилароматического сополимера в расчете на (а)+(b), b) от 12 мас. % до 40 мас. % блок-сополимера, содержащего по меньшей мере один винилароматический полимер и/или винилароматический сополимер и по меньшей мере один гидрированный диеновый полимер в расчете на (а)+(b), с) от 3 мас. частей до 10 мас. частей вспенивателя в расчете на 100 частей (а)+(b). Изобретение позволяет получить полимерные композиции, обладающие пониженной абразивной способностью и улучшенной стойкостью к удару. 5 н. и 10 з.п. ф-лы, 1 ил., 4 табл.

МНОГОСЛОЙНОЕ РАСТВОРИМОЕ ТВЕРДОЕ ИЗДЕЛИЕ И СПОСОБ ЕГО ИЗГОТОВЛЕНИЯ

Настоящее изобретение относится к растворимым твердым изделиям, содержащим множество слоев гибких растворимых пористых листов, и способу их изготовления. Описано многослойное растворимое твердое изделие, которое содержит два или более гибких растворимых пористых листов, каждый из таких двух или более листов характеризуется процентным содержанием открытых ячеек от около 80% до около 100% и общим средним размером пор от около 100 мкм до около 2000 мкм и содержит водорастворимый полимер, и по меньшей мере два смежных листа в таком растворимом твердом изделии характеризуются показателем адгезии (AdS) не менее 1, а контактирующие поверхности указанных по меньшей мере двух смежных листов по существу не содержат адгезивов. Технический результат – создание многослойной структуры с повышенной скоростью растворения и достаточной прочностью сцепления между смежными гибкими и растворимыми слоями, но по существу не содержащей адгезивов. 2 н. и 13 з.п. ф-лы, 3 пр., 14 табл., 7 ил.

ФОРМОВАННОЕ ИЗДЕЛИЕ ИЗ ТЕРМОПЛАСТА И СПОСОБ ЕГО ПОЛУЧЕНИЯ

Изобретение относится к формованному изделию из термопласта и способу получения формованного изделия. Формованное изделие включает пленку из пенопласта. Одна поверхность пленки закрыта, а другая, по меньшей мере, в частичной области открыта так, что граничащие с этой поверхностью открытые поры доступны для жидкости. Формованное изделие содержит, по меньшей мере, 10 об. % открытых пор. Поры имеют полиэдроподобную форму с механически недеформированными стенками и примыкают друг к другу. По меньшей мере две стенки каждой отдельной поры имеют отверстие при сохранении механической прочности пространственной матрицы, в которой расположены открытые поры. Стенки пор, окружающие отверстия, механически недеформированы. В способе изготовления формованного изделия осуществляют получение расплава из, по меньшей мере, одного базового полимера и структурообразующего средства на первой стадии экструзии, введение порообразователя и гомогенное смешивание его с расплавом полимера в конце первой стадии экструзии ...

ПЕНОПОЛИСТИРОЛ, СОДЕРЖАЩИЙ УГЛЕРОДНУЮ САЖУ

Использование: пенополистирол в качестве теплоизоляционного материала. Сущность изобретения: пенопласт, выполненный из пенополистирола с закрытой ячеистой структурой, содержащей 1,5-20 мас.% углеродной сажи с размером частиц 15-74 нм и площадью их поверхности 25-1475 м2/г. 5 з.п.ф-лы, 4 табл.

Способ получения газонаполненных полиакрилимидов

Изобретение относится к способу получения полиакрилимидных пенопластов, используемых в формованных изделиях, в частности в ракетостроении, кораблестроении, автомобилестроении, а также в медицинской технике. Описан способ получения вспениваемых сшитых полимеров на основе композиции из смеси полиакриламида (ПАА), малеинового ангидрида (МА) и щавелевой кислоты (ЩК). Для получения изделия из порошкообразной композиции прессовали заготовку пенопласта в течение 15 мин при температуре 100±5°С и давлении 15-20 МПа. Затем плиты пресса охлаждали вместе с заготовкой до комнатной температуры. Вспенивание и отверждение заготовки пенопласта проводили в полуограниченном объеме в форме по заданному режиму: вспенивание и отверждение при температуре 230-270°С в течение 1-3 часов, с последующим доотверждением пенопласта при температуре 150-200°С в течение 1-3 часов. Технический результат - высокие физико-механические показатели пенопласта в сочетании с улучшенными эксплуатационными свойствами. 3 з.п. ф-лы ...

Композиция

Настоящее изобретение относится к полимерной композиции, подходящей для применения в качестве материала для лепки. Описан материал для лепки, содержащий по меньшей мере одну композицию, содержащую: a) один или более сополимеров винилацетата и по меньшей мере один другой сложный виниловый эфир, или по меньшей мере один гомополимер винилацетата и по меньшей мере один сополимер винилацетата и по меньшей мере один другой сложный виниловый эфир; b) по меньшей мере один пластификатор, и d) по меньшей мере один наполнитель, где компонент а) присутствует в количестве от 30 до 90% по массе от количества компонентов а) и b), а компонент b) присутствует в количестве от 10 до 70% по массе от количества компонентов а) и b). Также предложены материал-наполнитель, способ создания оттиска объекта, применение материала для лепки, способ получения наполненной композиции. Технический результат заключается в улучшенных рабочих характеристиках материала в широком температурном диапазоне. 5 н. и 20 з.п. ф-лы ...

КОМПОЗИЦИИ, СОДЕРЖАЩИЕ ФТОРЗАМЕЩЕННЫЕ ОЛЕФИНЫ

... 1. Теплопередающая композиция, включающая, по меньшей мере, один фторалкен формулы I где Х означает ненасыщенный, замещенный или незамещенный С2- или С3-алкильный радикал, R независимо означает Cl, F, Br, I или Н и z равен 1-3, причем эта теплопередающая композиция имеет потенциал глобального потепления (ПГП) не выше приблизительно 150. 2. Теплопередающая композиция по п.1, в которой названный, по меньшей мере, один фторалкен является соединением формулы II где каждый из R независимо означает Cl, F, Br, I или Н; R' означает (CR2)nY; Y означает CRF2; и n равно 0 или 1. 3. Теплопередающая композиция по п.2, где Y означает CF3. 4. Теплопередающая композиция по п.3, где, по меньшей мере, один R у ненасыщенного концевого углерода не является F. 5. Теплопередающая композиция по п.4, где, по меньшей мере, один R у ненасыщенного концевого углерода является водородом. 6. Теплопередающая композиция по п.2, где n равно 0. 7. Теплопередающая композиция по п.2, где Y означает CF3 и n равно 0. 8. Теплопередающая ...

СПОСОБ ПРОИЗВОДСТВА НЕ ВСПЕНЕННОЙ ПОЛИУРЕТАНОВОЙ СМОЛЫ, СПОСОБ ПРОИЗВОДСТВА ЛАМИНАТА, ИНТЕГРИРОВАННОГО С ОБОЛОЧКОЙ, С ЕЕ ИСПОЛЬЗОВАНИЕМ (ВАРИАНТЫ) И ИЗДЕЛИЕ ИНТЕРЬЕРА ТРАНСПОРТНОГО СРЕДСТВА ИЗ ЛАМИНАТА, ИНТЕГРИРОВАННОГО С ОБОЛОЧКОЙ

... 1. Способ производства не вспененной полиуретановой смолы, включающий (A) реакционное инжекционное формование (I) смеси полиола, включающей (1) полиол, (2) от 2,0 до 7,0 частей по весу, относительно 100 частей по весу смеси полиола (I), удлинителя цепи, причем удлинитель цепи выбран из группы, состоящей из 1-метил-3,5-диэтил-2,4-диаминобензола, 1-метил-3,5-диэтил-2,6-диаминобензола и их смеси (3) катализатор, и (4) при необходимости, вспомогательный агент, и (II) полиизоцианатного соединения, и (B) формование части при времени отверждения от 30 до 100 с при условии, что время гелирования реакционной смеси жидкости на основе компонентов (I) и (II) составляет от 5,0 до 15,0 с, причем готовый формованный продукт имеет толщину от 0,5 до 3,0 мм. 2. Способ по п.1, где поверхностная твердость не вспененной полиуретановой смолы составляет от 30 до 70, как измерено прибором для измерения твердости Asker A. 3. Способ производства ламината, интегрированного с оболочкой, включающего дизайн поверхностной ...

ВСПЕНЕННЫЙ МНОГОСЛОЙНЫЙ ЛИСТ

... 1. Вспененный многослойный лист, полученный наслаиванием полимерного слоя, включающего по меньшей мере вспененный полимерный слой, на волокнистый основной материал, где смещение от первой точки максимума прочности при растяжении в поперечном направлении до второй точки максимума прочности во вспененном многослойном листе в процессе измерения при растяжении со скоростью 3 мм/мин способом исследования прочности на разрыв листового покрытия, который определен стандартом JIS К7128-3, составляет от 1 до 5 мм.2. Вспененный многослойный лист по п. 1, для которого, кроме того, результат исследования эксплуатационных характеристик обоев с упрочненной поверхностью, полученный способом, определенным Ассоциацией обойной промышленности, соответствует четвертому или более высокому классу.3. Вспененный многослойный лист по п. 1, в котором полимерный слой содержит полимерные компоненты двух или более типов, выбранные из группы, которую составляют полиэтилен, сополимер олефина и винилового эфира карбоновой ...

КОМПОЗИЦИИ, СОДЕРЖАЩИЕ ФТОРЗАМЕЩЕННЫЕ ОЛЕФИНЫ

... 1. Вспениваемая композиция, включающая, по меньшей мере, один формирующий пену компонент и вспенивающий агент, содержащий, по меньшей мере, один фторалкен формулы II: ! ! где каждый R независимо означает Cl, F, Br, I или Н; ! R′ означает (CR2)nY; ! Y означает CF3; ! и n равно 0 или 1, и где, по меньшей мере, один R у ненасыщенного концевого углерода является Н и, по меньшей мере, один из остающихся R представляет собой F, причем названный фторалкен имеет потенциал глобального потепления (ПГП) не более чем приблизительно 150. ! 2. Композиция по п.1, в которой вспенивающий агент имеет ПГП не более чем приблизительно 100. ! 3. Композиция по п.1, в которой вспенивающий агент имеет потенциал истощения озонового слоя (ПИОС) не более чем приблизительно 0,05. ! 4. Композиция по п.1, в которой, по меньшей мере, один заместитель у ненасыщенного концевого углерода фторалкена представляет собой F. ! 5. Композиция по п.1, в которой образующий пену компонент содержит, по меньшей мере, полиол. ! 6. Композиция ...

СПОСОБ ПОЛУЧЕНИЯ ПЕНОПЛАСТОВЫХ ПЛИТ

... 1. Способ получения в форме под давлением пенопластовых формованных изделий из предварительно вспененного гранульного пенопласта, который имеет полимерное покрытие, отличающийся тем, что полимерное покрытие содержит атермическое соединение. ! 2. Способ по п.1, отличающийся тем, что полимерное покрытие в качестве атермического соединения содержит сажу, кокс, алюминиевый порошок или графит. ! 3. Способ по п.1, отличающийся тем, что предварительно вспененные гранулы пеноматериала агломерируют в отсутствие паров воды. ! 4. Способ по п.1, отличающийся тем, что в качестве гранульного пенопласта применяются пенополиолефин или предварительно вспененные гранулы пенообразующих полистиролов. ! 5. Способ по п.1, отличающийся тем, что в качестве гранульного ! пенопласта применяли измельченные гранулы повторно используемых формованных пенопластовых изделий. ! 6. Способ по п.1, включающий стадии: ! a) Предварительное вспенивание пенообразующих полистиролов в гранульные пенопласты, ! b) покрытие гранульного ...

ФОРМОВАННОЕ ИЗДЕЛИЕ ИЗ ТЕРМОПЛАСТА И СПОСОБ ЕГО ПОЛУЧЕНИЯ

Получаемое путем экструзии формованное изделие 1, как пленка из пенопласта, пластина, фасонное изделие или т.п., содержит по меньшей мере 10 об.% открытых пор 2, 4, которые имеют полиэдроподобную форму и примыкают друг к другу. Благодаря повышенной температуре или экструзии, по сравнению с экструзией термопластичных формованных изделий с закрытыми порами, достигают не вызывающего деформацию раскрытия пор. При этом сохраняются перегородки 3 стенок пор 5, 6, которые имеют отверстия 7 или не имеют никакой проницаемости, в целостном виде, так что сохраняется механическая прочность пористого каркаса или, соответственно, пространственной матрицы.

СПОСОБ ПОЛУЧЕНИЯ ПОЛИМЕРНОГО ПОЛИОЛА

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 ...

ТЕРМОПЛАСТИЧЕСКИЙ ПОЛИУРЕТАНОВЫЙ ТЕРМОПЛАВКИЙ КЛЕЙ

КОМПОЗИЦИЯ, СОДЕРЖАЩАЯ ФТОРЗАМЕЩЕННЫЕ ОЛЕФИНЫ, И СПОСОБЫ ЕЕ ПРИМЕНЕНИЯ

ТВЕРДАЯ ПОЛИУРЕТАНОВАЯ ПЕНА С НИЗКОЙ ТЕПЛОПРОВОДИМОСТЬЮ И ХОРОШЕЙ ТЕРМИЧЕСКОЙ СТАБИЛЬНОСТЬЮ

... 1. Полиуретановый пеноматериал, полученный взаимодействием(A) по меньшей мере одного простого полиэфирполиола в качестве компонента (A), основанного по меньшей мере на одном соединении, выбранном из группы, состоящей из триметилолпропана, глицерина, пентаэритрита, соединений из группы сахаров, например, глюкозы, сорбита, маннита и сахарозы, и их смесей,(B) по меньшей мере одного простого полиэфирполиола на основе по меньшей мере одного амина в качестве компонента (B),(C) по меньшей мере одного сложного полиэфирполиола в качестве компонента (C) и(D) по меньшей мере одного полиизоцианата в качестве компонента (D),в присутствии по меньшей мере одного катализатора, выбранного из группы, состоящей из солей карбоновых кислот с 1-20 атомами углерода, аминсодержащих соединений и их смесей, в качестве компонента (E) и по меньшей мере одного раздувающего агента в качестве компонента (F), причем соотношение групп OCN и групп OH (индекс ISO) составляет от 145 до 165.2. Полиуретановый пеноматериал по ...

СИСТЕМА И СПОСОБ ПОЛУЧЕНИЯ IN SITU-ПЕНОМАТЕРИАЛА

СПОСОБЫ ПРОИЗВОДСТВА ВОДНОЙ ЭМУЛЬСИИ, ТОНКОДИСПЕРСНОГО ПОРОШКА И РАСТЯНУТОГО ПОРИСТОГО ТЕЛА ИЗ МОДИФИЦИРОВАННОГО ПОЛИТЕТРАФТОРЭТИЛЕНА

СВОБОДНЫЕ ОТ ГАЛОГЕНА ФОСФОРСОДЕРЖАЩИЕ ОГНЕСТОЙКИЕ ПОЛИМЕРНЫЕ ПЕНЫ

... 1. Полимерная пена с плотностью от 5 до 120 кг/м, содержащаяa) полимерный компонент, содержащий по меньшей мере один стирольный полимер,b) от 0,1 до 5 мас.ч. (относительно 100 мас.ч. компонента а)) действующей в качестве огнезащитного средства смеси, содержащейb1) по меньшей мере одно фосфорное соединение формулы (I) с содержанием фосфора от 5 до 80 мас.% из расчета на фосфорное соединение,где Rпредставляет собой C-C-алкил, C-C-гидроксиалкил, C-C-алкенил, C-C-алкокси, C-C-алкенокси, C-C-циклоалкил, C-C-циклоалкокси, C-C-арил, C-C-арилокси, C-C-арил-C-C-алкил, C-C-арил-C-C-алкокси, SR, COR, COOR, CONRR;Rпредставляет собой C-C-алкил, C-C-гидроксиалкил, C-C-алкенил, C-C-алкокси, C-C-алкенокси, C-C-циклоалкил, C-C-циклоалкокси, C-C-арил, C-C-арил-C-C-алкил, C-C-арил-C-C-алкокси, SR, COR, COOR, CONRR;Rпредставляет собой H, SH, SR, OH, ORили группу(Y)-[P(=X)R-(Y)]-P(=X)RR;или две группы R, R, Rобразуют вместе с атомом фосфора, с которым они связаны, кольцевую систему;X, Xи Xявляются одинаковыми ...

ПОЛИМЕРНЫЙ МАТЕРИАЛ ДЛЯ ТЕПЛОИЗОЛИРОВАННОГО КОНТЕЙНЕРА

... 1. Состав для формования теплоизолирующей ячеистой неароматической полимерной структуры, причем состав включаетпервый полимерный материал, содержащий по меньшей мере один полипропилен с высокой прочностью расплава, характеризующийся длинноцепочечным разветвлением,второй полимерный материал, содержащий по меньшей мере один полимер, выбранный из группы, состоящей из полипропилена, полиэтилена и их смесей, по меньшей мере один нуклеирующий агент, и по меньшей мере одну добавку, понижающую трение.2. Состав по п. 1, где первый материал представляет собой гомополимер.3. Состав по п. 1, где первый полимерный материал имеет прочность расплава не менее 36 согласно ISO 16790.4. Состав по п. 1, где первый полимерный материал имеет температуру плавления не менее 163°C (325,4°F).5. Состав по п. 1, где второй полимерный материал содержит материал на основе полиэтилена, выбранный из группы, состоящей из полиэтилена низкой плотности, линейного полиэтилена низкой плотности, полиэтилена высокой плотности ...

ПОЛИУРЕТАНОВЫЙ/ПОЛИИЗОЦИАНУРАТНЫЙ ЖЕСТКИЙ ПЕНОПЛАСТ, СПОСОБ ЕГО ПОЛУЧЕНИЯ И ЛАМИНАТ, СОДЕРЖАЩИЙ УКАЗАННЫЙ ПЕНОПЛАСТ

... 1. PUR-/PIR-Жесткий пенопласт, полученный взаимодействием органического полиизоцианатного компонента с полиольным компонентом, содержащем соединения с водородными атомами, реакционно-способными по отношению к изоцианатным группам, при индексе от 100 до 400, в присутствии подходящих вспомогательных веществ и добавок, а также порообразователя и сопорообразователя, при этом полиольный компонент содержит, по меньшей мере, один алифатический сложный полиэфирполиол, который, наряду с фрагментами, производными от адипиновой кислотой, содержит также фрагменты, производные от глутаровой кислоты, янтарной кислоты и/или себациновой кислоты. 2. PUR-/PIR-Жесткий пенопласт по п.1, при этом индекс лежит в области от 180 до 400. 3. Способ получения PUR-/PIR-жесткого пенопласта по п.1 или 2, при котором органический полиизоцианатный компонент распыляется с полиольным компонентом, содержащем соединение с водородными атомами, реакционноспособными по отношению к изоцианатным группам, при индексе от 100 до ...

ПОЛИУРЕТАНОВЫЕ ЭЛАСТОМЕРЫ, СПОСОБ ИХ ПОЛУЧЕНИЯ И ИХ ПРИМЕНЕНИЕ

... 1. Способ получения полиуретановых эластомеров, отличающийся тем, что:a) мономерный полиизоцианат превращают посредством катализатора тримеризации, используемого в количестве от 0,1 до 2000 млнв пересчете на мономерный полиизоцианат, причем при содержании превращенного полиизоцианата от 0,01 до 5,0% масс, в пересчете на общий полиизоцианат превращение прекращают посредством ингибитора тримеризации, молярное отношение которого к катализатору тримеризации составляет от 1:2 до 20:1,b) смесь мономерного и превращенного полиизоцианата по пункту а) превращают с полиолами с гидроксильным числом от 20 до 200 мг КОН/г и функциональностью от 1,95 до 2,40 в форполимер с концевыми изоцианатными группами, иc) форполимер с концевыми изоцианатными группами превращают с агентами удлинения цепей и/или сшивающими агентами в полиуретановый эластомер,причем мономерный полиизоцианат и/или полиолы при необходимости могут содержать вспомогательные компоненты и/или добавки.2. Способ получения форполимеров с концевыми ...

ПОЛУЧЕНИЕ ПЕНОМАТЕРИАЛА НА ОСНОВЕ PMMA С ПРИМЕНЕНИЕМ СШИВАЮЩИХ СРЕДСТВ, РЕГУЛЯТОРОВ И ПОРООБРАЗУЮЩИХ СРЕДСТВ

ПОЛИМЕРНАЯ КОМПОЗИЦИЯ ДЛЯ ИЗГОТОВЛЕНИЯ ВСПЕНЕННОГО МАТЕРИАЛА НА ОСНОВЕ ПОЛИФЕНОЛА И СПОСОБ ЕГО ПОЛУЧЕНИЯ

ПОЛИУРЕТАНЫ, ПОЛУЧЕННЫЕ ИЗ ГИДРОКСИМЕТИЛСОДЕРЖАЩИХ ЖИРНЫХ КИСЛОТ ИЛИ АЛКИЛОВЫХ ЭФИРОВ ТАКИХ ЖИРНЫХ КИСЛОТ

... 1. Способ получения полиуретана, включающий образование реакционной смеси, содержащей по меньшей мере один полиизоцианат, жирную кислоту, имеющую в среднем по меньшей мере 0,8 гидроксиметилгруппы на молекулу, и по меньшей мере одно соединение полиола, полиамина или аминоспирта, и отверждение реакционной смеси с образованием полиуретанового полимера.2. Способ по п.1, в котором жирная кислота содержит 10-26 углеродных атомов.3. Способ по п.2, в котором жирная кислота представляет собой смесь материалов, выбранных из материалов, имеющих структуры А1, А2, А3, А4 и А5,где А1 соответствует формуле (I)в которой m представляет собой число >3; n≥0, (m+n) составляет от 8 до 22, особенно, от 11 до 19;А2 соответствует формуле (II)в которой v представляет собой число >3, r и s представляют собой каждый число ≥0, причем (v+r+s) составляет от 6 до 20, особенно от 10 до 18;А3 соответствует формуле (III)в которой v, каждый r и s являются такими, как определено выше, t представляет собой число ≥0, (v+r+s ...

СПОСОБ ИЗГОТОВЛЕНИЯ ТВЕРДОЙ ПОЛИУРЕТАН-ПОЛИИЗОЦИАНУРАТНОЙ ПЕНЫ

... 1. Способ изготовления твердой полиуретан-полиизоциануратной пены С, содержащий стадию проведения реакции(I) преполимера В с концевыми изоцианатными группами с(II) активирующей добавкой А, содержащей по меньшей мере один катализатор тримеризации А1 и по меньшей мере одно пенообразующее вещество A3,в реакционной смеси, до образования пены, отличающийся тем, что- применяют преполимер В с концевыми изоцианатными группами, полученный в результате реакции изоцианата В1, который имеет среднее количество изоцианатных функциональных групп, составляющее от ≥2,3 до ≤2,9, с полиольным компонентом В2, и- активирующая добавка А содержит воду в качестве пенообразующего вещества A3 в количестве, которое составляет от ≥5 мас.% до ≤50 мас.%,- изоцианатный индекс в реакционной смеси находится в диапазоне, который составляет от ≥400 до ≤1500,- содержание изоцианата преполимера В находится в диапазоне, который составляет от ≥21 мас.% до ≤30 мас.%, из расчета общей массы преполимера В, и- где в реакции преполимера ...

КРУПНОФОРМАТНАЯ ПОЛИСТИРОЛЬНАЯ ПАНЕЛЬ

... 1. Панель для применения в мебели и использования в отделке внутренних помещений, содержащая сплошной листовой корпус, выполненный из полистирола или ударопрочного полистирола, полностью заключающий в себе ячеистую пластиковую сердцевину, выполненную из термически активируемого вспениваемого пластикового гранулированного материала, причем площадь наибольшей лицевой поверхности панели превышает 1 м.2. Панель по п. 1, в которой общая толщина панели составляет величину более 11 мм.3. Панель по п. 1, в которой сплошной листовой корпус формируют из повторно используемого полистирола или повторно используемого ударопрочного полистирола.4. Панель по п. 1, в которой сердцевина включает смешанный пластик из отходов.5. Панель по п. 1, в которой сердцевина включает упрочняющие элементы.6. Панель по п. 1, в которой листовой корпус формуют для придания поверхностной текстуры.7. Панель по п. 1, в которой листовой корпус включает термостойкую пропечатанную пленку.8. Панель по п. 1, включающая по меньшей ...

Способ получения пористого материала

VERFAHREN ZUR HERSTELLUNG VON SCHÄUMEN AUF BASIS VON ETHYLENISCHEN POLYMEREN

ZELLFÖRMIGES POLYMER PERFORIERTE FENSTER FÜR ZELLEN ENTHALTEND UND VERFAHREN ZU DEREN HERSTELLUNG

KOMPATIBILISIERTE MISCHUNGEN AUS OLEFINISCHEN POLYMEREN UND MONOVINYLIDENEAROMATISCHEN POLYMEREN

Verfahren zur Herstellung von Schaumstoffen

Schichten oder dreidimensionale Formkörper mit zwei Bereichen unterschiedlicher Primär- und/oder Sekundärstruktur, Verfahren zur Herstellung des Formkörpers und Materialien zur Durchführung dieses Verfahrens

Die Erfindung betrifft eine Schicht oder einen dreidimensionalen Formkörper aus oder mit einem organisch modifizierten Polysiloxan oder einem Derivat davon, dessen Siliciumatome ganz oder teilweise durch andere Metallatome ersetzt sind, wobei der organische Anteil des Polysiloxans oder Derivats davon ein organischen Netzwerk mit (i) über Kohlenstoff und/oder Sauerstoff an Silicium und/oder andere Metallatome gebundenen C=C-Additionspolymeren und/oder Thiol-En-Additionsprodukten, die über eine 2- oder Mehrphotonenpolymerisationsreaktion erhältlich sind, sowie (ii) über C=C-Doppelbindungen copolymerisierten oder durch eine Thiol-En-Addition an Doppelbindungen oder an SH-Gruppen des organischen Restes in das organische Netzwerk eingebundenen organischen Molekülen aufweist, wobei der Körper zwei Bereiche mit unterschiedlichen Primär- und/oder Sekundärstrukturen aufweist, erhältlich durch das folgende Verfahren: a) Bereitstellen eines Substrats oder einer Form, b) Bereitstellen eines Materials ...

POLYESTERFILM, ENTHALTEND FEINE ZELLEN.

Alkoxylierte Mannichkondensate enthaltende Polyole und Verfahren zu ihrer Herstellung.

Verfahren zur kontinuierlichen Herstellung poroeser Gebilde aus Celluloseestern oder-aethern

FLÜSSIGKEITSABWEISENDE MIKROPORÖSE MATERIALIEN

Kompositartikel aus Polytetrafluorethylen mit kontrollierten Poren und dessen Herstellungsmethode.

Vernetzter Elastomerschaum auf Basis von Polyolefin und Zusammensetzung dafür

Mono- oder biaxial gestreckte Polyesterschaumplatten

Verfahren zum In-Mold Foaming mit einem schäumbaren Medium und Deckschichten und dadurch erhältlicher Kunststoffformkörper

Durch Verwendung eines festen, aufschäumbaren Kunststoffes, wie beispielsweise Poly(meth)acrylimid (PMI), Polyvinylchlorid (PVC), Polyurethan (PUR), oder Poly(meth)acrylat, (PMMA) gelingt es, einen im wesentlichen homogenen Kunststoffschaumverbundformkörper herzustellen, der sich im Zuge des Aufschäumprozesses bei ca. 200 Grad Celsius mit einer Deckschicht oder mehreren Deckschichten oder mit mehreren gleichen oder unterschiedlichen Deckschichten mechanisch stabil verbindet.

PERFORIERTE SCHÄUME

WEICHMACHER FÜR PHENOLSCHAUMSTOFF UND VERFAHREN ZUR HERSTELLUNG VON PHENOLSCHAUMSTOFF

Conductive polymer foams method of manufacture and uses thereof

Articles are disclosed, comprising a polymer foam layer having a first surface and an opposite second surface; a plurality of cells between the first surface and the opposite second surface of the polymer foam layer, wherein the thickness of the polymer foam layer between the first surface and the opposite second surface is 1.0 to 1.5 times the average height of the plurality of cells; and a plurality of electrically conductive particles aligned into a plurality of columns that essentially continuously span the foam between the first surface and the opposite second surface of the polymer foam layer. The foams are useful as gaskets for electromagnetic shielding, grounding pads, battery contact conductive spring elements, and the like.

Conductive polymer foams, method of manufacture, and uses thereof

Energy absorbing material

There is provided a self-supporting energy absorbing composite comprising: i) a solid foamed synthetic polymer matrix; ii) a polymer-based dilatant, different from i) distributed through the matrix and incorporated therein during manufacture of i); and iii) a fluid distributed through the matrix, the combination of matrix, dilatant and fluid being such that the composite is resiliently compressible. There is also provided a self supporting energy absorbing composite comprising: iv) a solid, closed cell foam matrix; v) a polymer-based dilatant, different from i), distributed through the matrix; and vi) a fluid distributed through the matrix, the combination of matrix, dilatant and fluid being such that the composite is resiliently compressible.

Conductive polymer foams, method of manufacture, and articles thereof

Artificial sponge structures of regenerated cellulose

A regenerated cellulose sponge structure having staple fibres distributed within it, the ends of at least some of the fibres extending out of at least a part of the surface of the sponge forming a fibrous nap on that part of the surface, is prepared by dispersing staple fibres and crystals of Glauber's salt in a viscose solution, shaping the mixture, regenerating the cellulose, dissolving out the salt crystals, drying and removing at least a part of the surface skin. The sponge may be in the form of a sponge cloth or a sponge coated yarn. Specified fibres are flax, cotton, jute, hemp, nylon, polyacrylonitrile, polyethylene, polyethylene terephlate and polyvinylidene chloride.ALSO:A regenerated cellulose sponge structure has staple fibres distributed within it, the ends of at least some of the fibres extending out of at least a part of the surface of the sponge forming a fibrous nap on that part of the surface. The sponge may be in the form of a sponge cloth or a sponge coated yarn. The ...

PROCESS FOR PREPARING A RUBBER-ASPHALT COMPOSITION

Low-density dielectric materials and methods of manufacture thereof

Constructional panel with continuous polystyrene skin

The panel comprises a cellular plastic core 14 encapsulated by polystyrene or high impact polystyrene (HIPS) skin 12. Preferably the panel contains anti-bacterial, fungicidal and fire retardants. The preferred core 14 comprises mixed waste plastics and reinforcement members. Preferably the skin 12 is recycled, incorporated a high temperature printed film 18 and is moulded to provide surface texture.

MANUFACTURE OF POLYMERIC FOAMS

Filled Polyurethanes

... 1,163,342. Filled polyurethanes. MOBAY CHEMICAL CO. 16 May, 1967 [24 May, 1966], No. 22793/67. Headings C3C and C3R. Polyurethanes having discrete particles of a solid therein are prepared by sprinkling solid particles into a liquid organic compound containing hydrogen atoms reactive with an organic polyisocyanate while the liquid is being stirred to form a slurry, subjecting the slurry to a shearing action to break agglomerates of solid therein into discrete particles, flowing the slurry in a thin film to allow entrapped air bubbles to escape, diluting the resulting slurry with additional liquid organic compound and thereafter mixing the resulting dispersion with an organic polyisocyanate. The product may be in cellular form in which case a blowing agent is incorporated into the additional liquid organic compound. The particles may be of zirconium silicate, gypsum, limestone, chalk, talc, silica, zirconium oxide, silicon oxide mixtures, calcium carbonate, carbon and opal fines, clay and ...

Improvements in apparatus for launching rocket-type ammunition

... 632,599. Rocket-launching guns. ZBROJOVKA BRNO, NARODNI PODNIK. June 23, 1947, No. 16588. Convention date, July 16, 1946. [Classes 92 (i) and 92 (ii)] Rocket-type projectiles are fed one by one to a discharge guide and are automatically fired when reaching the firing position, the feed means being drivably connected to an operating member located in the path of the gases discharged from the projectiles at the time of firing, so that the feed movements of said feed means are transmitted to it by the operating member. In the construction shown, the gases of discharge from the rocket 7 impinge on vanes formed on the inner surface of the operating member 3, which is rotatably mounted on the cylindrical extension 4 of the discharge guide 1. The rotary motion of the member 3 is transmitted to a member 6, which drives the belt feeding the rockets, through a slipping clutch 5. Thus, upon firing one rocket the belt is moved and when the next rocket reaches the firing position, both it and the belt ...

PROCESS FOR PREPARING EXPANDED PHENOLIC RESOL RESINS

... 1522115 Expanded resols NOBEL HOECHST CHIMIE 19 Oct 1976 [20 Oct 1975] 43351/76 Heading C3C Expanded phenolic resol resins of density 30-400 kg./m.<3> are made from a mixture of a resol, a blowing agent, an acid hardener and 0À5-5% by wt. (based on the phenolic resin) of a surfactant which is a novolac resin containing an average at least 5 C8-12 alkylphenol units and bearing at least 10 alkylene oxide units per alkylphenol unit, the alkylene oxide consisting of ethylene oxide and propylene oxide. In the examples resols are mixed with a novolac with nonylphenol or octylphenol units oxyalkylated with ethylene oxide and propylene oxide, phenolsulphonic and phosphonic acids, and either trichlorofluoromethane with optionally trifluorotrichloroethane, or calcium carbonate; the mixing may be continuous using a machine comprising measuring pumps and a mixing head, and the mixtures may be injected into heated moulds and allowed to foam and harden to produce blocks or panels.

Improvements in and relating to the moulding of plastics materials

A shaped polyurethane foam is produced by introducing the ingredients into a heat-insulated mould wherein heat liberated in the exothermic polymer forming and foaming reactions is used for curing. Polyurethanes specified are polyesters, polyesteramides and polyethers crosslinked with polyisocyanate and foamed with water. Volatile liquids, e.g. fluorochlorocarbons, may be added up to 15% to provide internal cooling and give a low density foam and 0.2-0.5% by weight of catalysts, e.g. dibutyl tin dilaurate or hexamethylene diamine may be added. The reactants are mixed mechanically and may be preheated to 25 DEG C. before discharge directly into the mould. The mould may be of a thermoplastic, e.g. polythene, polypropylene or polystyrene 0.1 inch thick or a polyester or expoxy resin in conjunction with glass fibre. Sheet metal, e.g. aluminium, may also be used. It may be preheated up to 45 DEG C.. and may be ventilated. A cushion is made in an example.

Foam products and their production

A foam product comprising an expanded foam body having cells defined therein and blowing agent held within the cells, wherein at least 5% by weight of the foam body is formed from at least one component from a renewable source and optionally wherein the average thermal conductivity of the foam product over a 25 year life span of the product is 0.025 W/m.K or less. The renewable component may be one of several types of lignin (technical, soda, organosolv or depolymerised), or may be made from bio-methanol or bio-formaldehyde.

Material or conglomerate with fire resistance high.

Soft foods with properties insecticidal and proceeded for their manufacture.

Structure of relatively compact product.

VERFAHREN ZUR HERSTELLUNG VON POLYAMID-FORMTEILEN SOWIE VORRICHTUNG ZUR DURCHFUHRUNG DES VERFAHRENS

PROCEDURE FOR THE PRODUCTION OF PU FOAM MATERIALS

KLEINTEILIGE AGGREGATES CONTAINING THERMOPLASTIC FOAM MATERIALS

PROPELLANT ON BASIS OF HFC-134A AND CYCLOPENTAN

POLYOLEFIN FOAM WITH HIGH OPERATING TEMPERATURE FOR ACOUSTIC USE

THIN POLYETHYLENE FOAM FOILS

NOT HALOGENS, FLAME RETARDING ADDITIVES FOR USE IN FIRM POLYURETHAN-FOAM

NEW FLAME RETARDING ONES POLYSTYRENE

SOFTENER FOR PHENOL FOAM MATERIAL AND PROCEDURE FOR THE PRODUCTION OF PHENOL FOAM MATERIAL

HARD AERATED PLASTIC COMPOSITIONS AND PROCEDURES USING ALKANE ACID ALKYL STAR AS PROPELLANTS

MICRO-POROUS POLYOLEFIN DIAPHRAGM AND SEPARATOR FOR BATTERY WITH NICHTWÄSSRIGEM ELECTROLYTE

FLEXIBLE MATERIAL AND FIXABLE ELEMENT TO THE SEALING, ABSORPTION OR REINFORCEMENT AS WELL AS PROCEDURE FOR ITS PRODUCTION

PRODUCTION OF POLYMER FOAM MATERIALS USING HYDROFLUORETHERNUKLEIERUNGSMITTELN

RESIN COMPOSITION FOR FOAM MATERIAL AND USE OF IT

PELOTTE

HEATFORM-STEADY EXPAND-CASH OF STYRENE POLYMERS WITH HIGHER EXPAND-BARNESS

AUFSCHÄUMBARES MATERIAL

SOFT POLYOLEFIN FOAM WITH HIGH HEATPROOF QUALITY

CATALYST COMPOSITIONS FOR THE IMPROVEMENT OF THE ACHIEVEMENT OF POLYURETHAN-FOAM

SCHAUMSTOFFELEMENT MIT DARIN EINGELAGERTEN HYDROPHILEN MITTELN

The invention relates to a foam element (7) made from a foam and particles (11) of at least one hydrophilic substance such as cellulose, superabsorbers. The foam element (7) containing the particles (11) has a reversible capacity to absorb moisture. A part of the particles (11) is completely embedded in the foam. Another part of the particles (11) is disposed protruding out from a surface (13) of the foam, such as cell walls (9) or cell webs (10). The foam without the hydrophilic substance has an absorption capacity of more than 2.8% by weight at an equilibrium moisture corresponding to a temperature of 23° C.

SCHAUMSTOFFELEMENT MIT DARIN EINGELAGERTEN HYDROPHILEN MITTELN

The invention relates to a foam element (7) made of a foam and particles (11) made of at least one hydrophilic substance, such as cellulose, super-absorbers. The foam element (7) comprising the particles (11) has a reversible ability to absorb moisture. A portion of the particles (11) is completely embedded in the foam. Another portion of the particles (11) is arranged so as to protrude over a surface (13), such as cell walls (9) or cell webs (10), of the foam.

Neues umweltschonendes Verfahren zur Herstellung von Schwämmen und Schwammtüchern aus Polysacchariden

The invention relates to a modified viscose process for producing porous shaped bodies that contain (13) glucan as a structure-forming substance, and to the porous shaped bodies thus produced.

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.

Structural composite laminates

A composite laminate is formed from a structural foam and a reinforcement layer. The matched surface tensions of the structural foam and reinforcement layer result in increased bond strength between the structural foam and the reinforcement layer, thus providing for improved physical characteristics including improved lap shear and flexural strength.

Polyolefin-based resin pre-expanded particles and polyolefin-based resin in-mold expansion molded article comprising polyolefin-based resin pre-expanded particles

Polyolefin-based resin pre-expanded particles include a polyolefin-based resin composition including a polyolefin-based resin, a sterically hindered amine ether flame retardant expressed by the general formula (1): R 1 NHCH 2 CH 2 CH 2 NR 2 CH 2 CH 2 NR 3 CH 2 CH 2 CH 2 NHR 4 (1), and a phosphoric ester. The polyolefin-based resin pre-expanded particles are flame retardant polyolefin-based resin pre-expanded particles that can have good in-mold expansion moldability and exhibit excellent flame resistance compared to the conventional pre-expanded particles even when molded into a sample having a higher density or a larger thickness without using a halogen flame retardant, and that do not generate harmful gas during burning.

Method Of Improving Film Processing And Injection Molding Of Polyhydroxyalkanoate Polymers

Processing and improvements in processing of polyhydroxyalkanoate polymer films, sheet, injection moldings, thermoforms, and blow moldings are provided, by use of particular types of calcium carbonate. Methods for using the calcium carbonates in processing of polyhydroxyalkanoate polymers are also disclosed, as well as polyhydroxyalkanoate polymer compositions comprising the calcium carbonates, and articles made therefrom.

Phylon Processes of Making Foam Articles Comprising Ethylene/alpha-Olefins Block Interpolymers

Methods of making a foam article comprise the steps of compressing a foam at an elevated temperature in a mold for shaping the foam; and cooling the mold to a temperature greater than room temperature, wherein the foam comprises at least one ethylene/α-olefin block interpolymer. The foam may further comprise an ethylene vinyl acetate copolymer and an additive such as a filler or a crosslinking agent. The ethylene/α-olefin block interpolymers are a multi-block copolymer comprising at least one soft block and at least one hard block.

Antimicrobial foam

A resilient foam material having an active antimicrobial bound to, incorporated within, and projecting from its surface is provided for incapacitating or destroying microbes. The antimicrobial has an atomic structure that is capable of mechanically piercing or lysing a microbe thereby incapacitating or destroying the microbe. The resilient antimicrobial foam material may be manufactured into a resilient antimicrobial foam product for drawing across a surface and mechanically incapacitating or destroying microbes on the surface. The resilient antimicrobial foam material may be manufactured into a membrane for providing a sterile barrier for a surface. The resilient antimicrobial foam material is manufactured by combining the antimicrobial with a foam polymer material, heating the foam polymer material under pressure to a temperate that does not deactivate the antimicrobial, incorporating a blowing agent, cooling the material, and extruding the material.

Pre-expanded polypropylene resin beads and process for producing same

The present invention provides pre-expanded polypropylene resin beads comprising (A) a glycerin monoester of a C 6 to C 24 fatty acid and/or a polyglycerin monoester of a C 6 to C 24 fatty acid and (B) a glycerin diester of a C 6 to C 24 fatty acid(s) and/or a polyglycerin diester of a C 6 to C 24 fatty acid(s), in such a manner that a weight ratio [=(A)/(B)] between (A) and (B) in the polypropylene resin particles is 1.3 or more but 10 or less, and a total content [=(A)+(B)] is 0.3 parts by weight or more but 5 parts by weight or less with respect to 100 parts by weight of the polypropylene resin. The resin particles can be excellently used in in-mold foaming, without requiring washing with a chemical like nitric acid or methaphosphate soda, and can provide a polypropylene resin in-mold foamed product with good antistatic properties.

Polyimide polyphenylsulfone blends with improved flame resistance

The present disclosure relates to a composition with improved flame resistance, to articles made from the composition, and to methods that include processing the composition. The composition can include from 15 to 85 percent by weight of a polyetherimide (PEI), from 15 to 85 percent by weight of a polyphenylsulfone (PPSU), a polyetherimide-siloxane copolymer in an amount up to 12 percent by weight, and from 0 to 0.30 percent by weight of a stabilizer.

Thermoplastic resin composite bead production method, expandable thermoplastic resin composite bead, expanded thermoplastic resin composite bead, and foamed molded article formed from expanded thermoplastic resin composite beads

A seed beads dispersing disperse system is obtained by dispersing olefin resin seed beads 1 with a specific tubular shape in an aqueous medium. Then, the olefin resin seed beads 1 are impregnated with styrene monomers and the styrene monomers are polymerized in the presence of a polymerization initiator by heating at a temperature in a specified range, to thereby obtain tubular thermoplastic resin composite beads. Expandable thermoplastic resin composite beads obtained by impregnating the thermoplastic resin composite beads with a blowing agent, expanded thermoplastic resin composite beads obtained by foaming and expanding the expandable thermoplastic resin composite beads, and a foamed molded article formed from the expanded thermoplastic resin composite beads by molding are also obtained.

Azeotrope-like compositions comprising 1-chloro-3,3,3-trifluoropropene

An azeotrope-like mixture consisting essentially of chlorotrifluoropropene and at least one component selected from the group consisting of a C 1 -C 3 alcohol, a C 5 -C 6 hydrocarbon, a halogenated hydrocarbon, methylal, methyl acetone, water, nitromethane, and combinations thereof.

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.

Crosslinked Flame Retardant Thermoplastic Elastomer Gels

Crosslinked flame retardant thermoplastic elastomer gels are provided. The crosslinked flame retardant thermoplastic elastomer gels comprise a char catalyst, a char former, a maleic anhydride-modified styrene ethylene/butylene styrene polymer, and a softener oil. Methods are provided of making crosslinked flame retardant thermoplastic elastomer gels.

Expandable vinyl aromatic polymers and process for the preparation thereof

The present invention is an expandable vinyl aromatic polymer which comprises: a) a matrix of a branched aromatic ionomer, b) 1-10% by weight calculated with respect to the polymer (a), of an expanding agent englobed in the polymeric matrix, c) 0-20% by weight, calculated with respect to the polymer (a), of a filler homogeneously distributed in the polymeric matrix, in which, the branched aromatic ionomer comprises the product of co-polymerizing a first monomer comprising an aromatic moiety and an unsaturated alkyl moiety and a second monomer comprising an ionic moiety and at least two unsaturated moieties, wherein the ionic moiety has at least two ionizable groups, a cationic group that ionizes to form cations and an anionic group that ionizes to form anions, and wherein the cationic group is polyvalent and one capable of forming bridges to other molecules. The present invention also relates to the use of the expandable vinyl aromatic polymer to make expanded articles, in particular insulation boards.

Process for texturing materials

Provided are methods for making textured implantable materials made from two part RTV silicone foams and having a desired color or tone without the need for dyes or colorants.

Polyurethane foams containing incorporated phase change material

The invention relates to polyurethane foams with incorporated phase change material, especially for reinforcing the back of deep-drawn films and components.

Flame retardant system

The invention relates to a flame retardant comprising a) at least one sulfur compound of the formula (I) b) at least one halogen-free organophosphorus compound with phosphorus content in the range from 0.5 to 40% by weight, based on the phosphorus compound.

Macroporous Microcarrier Specific to Liver Cell, Preparation Method and Use Thereof

The present invention provides a macroporous microcarrier specific to hepatocytes using silk fibroin and galactosylated chitosan as main raw material, a preparation method thereof, and application for hepatocyte culture under the culture condition of microgravity rotation. The macroporous microcarrier s a sphere prepared from silk fibroin and galactosylated chitosan under the effect of crosslinker, wherein based on the total weight of the sphere, the content of silk fibroin is 50-80 wt % and the content of galactosylated chitosan is 15-40 wt %. The diameter of the microcarrier is 200-500 μm, and the aperture of the microcarrier is 40-80 μm. Compared with normal solid scaffold material, the microcarrier provided by the present invention has larger surface area/volume ratio and, a sinus gap structure extremely similar with in-vivo liver sinus structure, therefore it is more conducive to adhering of the hepatocytes on the scaffold material, contacting between cells, transporting oxygen and nutrient components and excreting metabolic products.

Porous Thermoplastic Foams as Heat Transfer Materials

Interconnected, open-celled porous or microporous polymeric foams are used for the preparation of heat transfer devices. The use of such porous polymeric foams can generate a turbulent flow within a heat exchanging liquid, thus enabling increased heat transfer to and from the fluid. The present disclosure provides devices having a heat transfer element containing a heat exchange region wherein a heat exchange fluid can be circulated through a porous polymeric foam; and method for making and using such devices.

Process for preparing a polyurethane foam

The invention relates to a process for preparing a polyurethane foam, wherein a polyether polyol and a polyisocyanate are reacted in the presence of: a blowing agent; of from 1 to 30 ppmw, based on the polyether polyol, of metals derived from a composite metal cyanide complex catalyst; and of from 0.5 to 100 ppmw, based on the polyether polyol, of a phosphoric acid compound comprising a phosphoric acid selected from orthophosphoric acid, polyphosphoric acid and polymetaphosphoric acid, and/or a partial ester of such a phosphoric acid.

Process of preparing an emulsion containing core-sheath-shell polymer particles

The disclosure relates to processes for preparing an emulsion containing core-sheath-shell polymer particles which, when dried, contain a microvoid which causes opacity in compositions in which they are contained. The particles can serve as binding or opacifying agents in paints, coating, impregnating, and molding compositions primarily, also extended to paper coatings and to some extent in leather, textiles and water based construction materials.

Polypropylene resin, polypropylene resin composition, and foam-injection-molded article

A polypropylene resin and a polypropylene resin composition are provided, which have excellent fluidity and foaming properties, and particularly in use for foam injection molding, allow molding with a narrow initial cavity clearance even if a large mold is used, and therefore can provide a thin, large-area foam-injection-molded article having good appearance. The invention relates to a polypropylene resin obtained by melt mixing a linear polypropylene resin, a radical polymerization initiator and a conjugated diene compound, wherein the polypropylene resin has a melt flow rate of more than 30 g/10 min and not more than 250 g/10 min as measured at 230° C. under a load of 2.16 kg; a melt tension at 200° C. of not less than 0.3 cN; and a loss tangent (tan δ) of not more than 6.0, the loss tangent being a ratio of loss modulus to storage modulus at an angular frequency of 1 rad/s in dynamic viscoelasticity measurement at 200° C., and also relates to a polypropylene resin composition for foam injection molding, containing the polypropylene resin.

EPDM foam and adhesive sealing material

An EPDM foam contains an ethylene-propylene-diene rubber, in which the EPDM foam has water stopping performance lasting for 1 hour or more according to 50% waterstop test and metal corrosion is not observed according to metal corrosion test.

Preparation method of clay/polymer composite using supercritical fluid-organic solvent system

The present invention relates to a method for preparing a clay/polymer composite having a predetermined form such as powder or porous foam with an enhanced thermal and mechanical stability using a simple, economical and eco-friendly supercritical fluid-organic solvent system, and more particularly, to a method for preparing a clay/biodegradable polymer stereoisomeric nanocomposite and a clay/polymer composite prepared by the method thereof. The method of preparing a clay/polymer composite according to the present invention may include (a) introducing a clay, a biodegradable single-phase D-type/L-type stereoisomeric polymer and an organic solvent into a reactor, (b) introducing a supercritical fluid into the reactor to form a stereoisomeric composite, and forming a clay/polymer composite dispersed with the clay on the stereoisomeric composite, and (c) collecting the clay/polymer composite, and the clay/polymer composite of the present invention is a clay/polymer composite prepared by the preparation method.

Porous, low density nanoclay composite

Disclosed are porous, low density nanoclay composites that exhibit highly homogeneous microcellular morphology and methods for forming the nanocomposites. The nanocomposites include a three-dimensional matrix having a non-lamellar, generally isotropic cellular structure with little or no macroscopic pores. The nanocomposites also include a gel that may be a noncovalently cross-linked, thermoreversible gel. The nanocomposites may include a binder and/or fibrous reinforcement materials. The nanocomposites may be formed according to a freeze-drying process in which ice crystal growth is controlled to prevent formation of macroscopic pores in the composite materials.

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].

White film and surface light source using same

A white film has reflective properties, concealing properties and film-forming stability and can be made into a thin film, a white film, which contains voids therein and satisfies the following formulae (i) to (iii) is provided: 0.6≦ nB/nA≦0.9   (i) 20≦nA   (ii) 15≦nB   (iii) (wherein, nA represents the number of interfaces in 10 μm of the surface layer in the film thickness direction; and nB represents the number of interfaces in ±5 μm of the central part in the film thickness direction).

Polypropylene series resin porous film, battery separator and battery

Regarding a polypropylene series resin porous film having a polypropylene series resin as the main component, so as to exert excellent slipping ability and processability when used as a battery separator, a polypropylene series resin porous film fabricated in such a way that the coefficient of static friction against film is greater than the coefficient of static friction against SUS is proposed.

High alcohol content foaming compositions with silicone-based surfactants

This invention relates to a “high lower alcohol content” (>40% v/v of a C 1-4 alcohol) liquid composition able to be dispensed as a stable foam with the use of non-propellant foam dispensing devices from non-pressurized containers. The liquid compositions comprise an alcohol, C 1-4 (>40% v/v), a silicone-based surfactant of at least 0.001% by weight to prepare a foamable composition, 0-10% w/w of additional minor components added to obtain the desired performance (a foamable composition), and the balance being purified water. The compositions may include emulsifier-emollients and moisturizers, secondary surfactants, foam stabilizers, fragrances, antimicrobial agents, other type of medicinal ingredients, and the like ingredients or additives or combinations thereof commonly added to alcohol gels or foams, aerosol compositions or to toiletries, cosmetics, pharmaceuticals and the like.

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.

Cosmetic sponge and method for providing a cosmetic sponge

This invention relates to a cosmetic sponge and a method of providing a cosmetic sponge incorporating a non-denatured collagen and other additives for skin care, cleaning, and cosmetic application.

Deformable, rigid polystyrene foam board

Provided are methods for producing a high strength, but easily deformed, polystyrene foam board that can endure repeated deformations from its original configuration into more complex curved shapes without damaging the board integrity or substantially reducing its structural strength. Also provided are rigid polystyrene foam boards produced by this method that exhibit improved bending and impact resistance while substantially retaining or improving other properties, for example, the thermal dimensional stability and fire resistance, exhibited by corresponding conventional XPS foam boards. The foamable compositions may incorporate one or more of a variety of polymer processing aids for the purpose of altering the performance of the final foam products, thereby allowing the properties of the final foam product to be customized to some degree.

Expandable polymers of cellulose acetate butyrate

The invention relates to expandable polymers and/or polymer granulates of cellulose acetate butyrate (CAB) having an average molecular weight (Mn), determined as polystyrene-equivalent molecular weight by means of gel chromatography, of ≧20.000 g/mol and an average butyryl content of cellulose acetate butyrate of ≧20 wt. %, preferably ≧30 wt. %, and corresponding polymer foams.

Laser-induced plastic foaming

A matrix material composed of polymer, preferably of thermoplastic polymer, or coating material. The matrix material includes 0.01 to 50% by weight of an additive for foaming of the matrix material which can be triggered by irradiation with laser light or IR light. The additive includes at least the following constituents: a) at least one absorber material which, embedded or dissolved in the matrix material, absorbs laser light or IR light and brings about local heating in the matrix material at the site of irradiation with laser light or IR light, and b) at least one blowing agent which, when heated due to the irradiation with laser light or IR light to temperatures above 50° C., forms a gas which foams the matrix material by decomposition, chemical conversion or reaction.

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.

Polytetrafluoroethylene porous membrane with small elongation anisotropy and process for production thereof

The present invention provides a polytetrafluoroethylene (PTFE) porous membrane having, when an arbitrary in-plane direction of the membrane is taken as a first direction, and an in-plane direction orthogonal to the first direction is taken as a second direction, a strength of 20 N/mm 2 or more, an elongation percentage at breakage of 200% or less, and a ratio of the elongation percentage in the second direction with respect to the elongation percentage in the first direction of 0.5 to 2.0, in a tensile test performed in the first direction and in the second direction. The PTFE porous membrane of the present invention is less elongated due to an external force and has small anisotropy in elongation.

Compositions for compounding, extrusion and melt processing of foamable and cellular fluoropolymers

The present invention relates generally to the use of talc as a chemical foaming agent in perfluoropolymers to form foamable and foamed compositions. For example, in one aspect, a foamable composition is disclosed, which comprises (i) one or more base perfluoropolymers comprising at least 50 percent by weight of the composition, and (ii) talc blended with the one or more base perfluoropolymers, where the talc comprises 3 percent to about 15 percent by weight of the composition. Each of the perfluoropolymers is selected from the group consisting of tetrafluoroethylene/perfluoromethylvinyl ether copolymer (MFA), hexafluoropropylene/tetrafluoroethylene copolymer (FEP) and perfluoroalkoxy (PFA) and any blend thereof, where hydrogen-containing fluoropolymers are absent from the composition. The one or more base perfluoropolymers are melt-processable at one or more elevated processing temperatures of at least about 600° F. at which the talc functions as a chemical foaming agent for extrusion or mold processing of the composition into a foamed article having uniform cell structures.

Process for producing high molecular weight polyethylene

In a process for producing polyethylene having a molecular weight of at least 1×10 6 g/mol as determined by ASTM 4020, ethylene is contacted under polymerization conditions with a slurry of a catalyst composition comprising a particulate support having an average particle size, d50, of less than 58 microns and a Group 4 metal complex of a phenolate ether ligand carried by the support.

Methods and compositions for textile layers and coatings

A method for preparing a solid composite material comprising a structural polymer matrix and a thermo-responsive hydrogel involves forming a substantially homogeneous blend of a cross-linkable compound and monomer, oligomer or polymer particles in a blended aqueous liquid, inducing the cross-linkable compound to cross-link to form the thermo-responsive hydrogel and forming the structural polymer matrix from the structural polymer by a further induction means.

Silk fibroin porous material and method for producing same

By a silk fibroin porous material containing silk fibroin and an amino acid and a method for producing a silk fibroin porous material including freezing a fibroin solution having an amino acid added to a fibroin aqueous solution and subsequently thawing the solution to obtain a porous material, a porous material which does not contain a solvent and which is high in safety and a method for producing the same are provided.

Composition for porous plastics for intake housings

Disclosed is a porous plastic resin composition including a polypropylene-based resin, a polyamide-based resin, or an alloy resin made by alloying the two resins to each other with a compatibilizer, reinforced with an inorganic filler or a short glass fiber, and further including a porous inorganic filler and a special inorganic low blowing agent. When the disclosed porous plastic resin composition is used to make an intake housing part, it reduces the weight and cost of an automobile intake housing part.

BIAXIALLY ORIENTED CAVITATED POLYLACTIC ACID FILM

A biaxially oriented laminate film including a core layer including a blend of crystalline polylactic acid polymer and a metal salt phosphorus-containing compound nucleating agent which is biaxially oriented at low transverse direction orientation temperatures to impart a degree of cavitation around the metal salt phosphorus-containing metal such that a white opaque cavitated appearance and a lower film density and improved mechanical properties are obtained. The laminate film could further have additional layers such as a heat sealable layer disposed on one side of said core layer including an amorphous polylactic acid resin and/or a polylactic acid resin-containing layer disposed on the side of the core layer opposite the heat sealable layer, a metal layer, or combinations thereof. 1. A film comprising:a cavitated biaxially oriented layer comprising polylactic acid and a metal salt of a phosphorous compound.2. The film of claim 1 , wherein the metal salt of a phosphorous compound comprises 0.1 to 10 wt. % of the layer comprising polylactic acid.3. The film of claim 1 , wherein the cavitated biaxially oriented layer comprising polylactic acid has a plurality of voids and cavities and a density of less than 1.20 g/cm.4. The film of claim 1 , wherein the metal salt of a phosphorous compound is a zinc salt.5. The film of claim 1 , wherein the phosphorous compound is a phenylphosphonic acid.6. The film of claim 1 , wherein the metal salt of a phosphorous compound is a zinc salt of phenylphosphonic acid.7. The film of claim 1 , wherein the film has a white opaque appearance.8. The film of claim 1 , wherein the film has a haze of 40 to 100%.9. The film of claim 1 , wherein the film has a machine direction (MD) tensile strength of at least 15 kg/mmand a transverse direction (TD) tensile strength of at least 25 kg/mm.10. The film of claim 1 , wherein the film has an elongation to break of at least 150% in the machine direction (MD) and at least about 70% in the transverse ...

METHOD FOR PRODUCING FLAT, HYDROPHILIC, ALIPHATIC POLYURETHANE FOAMS

The invention relates to a method for producing flat, hydrophilic, aliphatic polyurethane foams. The invention also relates to a flat, hydrophilic, aliphatic polyurethane foam obtained according to said method and to the use thereof as a wound dressing, incontinence product or cosmetic article. According to the invention, a prepolymer-component and a carbonic acid or carboxylate component containing water is produced, said components are combined and mixed, and the obtained mixture is applied to a flat substrate as a layer which has an even thickness. Directly after application, a perforated separation element is applied in a flat manner to the layer. Said applied layer then expands with the applied perforated separation element to form the flat polyurethane foam. 117-. (canceled)18. A method for producing a sheetlike hydrophilic aliphatic polyurethane foam which comprises a low molecular weight aliphatic diisocyanate A1) having a molar mass of 140 to 278 g/mol with', 'a di- to hexafunctional polyalkylene oxide A2) having an OH number of 22.5 to 112 mg KOH/g and an ethylene oxide fraction of 50 to 100 mol %, based on the total amount of oxyalkylene groups present,, 'I) preparing an isocyanate-functional prepolymer A) by reacting'}II) mixing C8- to C22-monocarboxylic acid or their ammonium or alkali metal salt or C12- to C44-dicarboxylic acid or their ammonium or alkali metal salt B) with water C),III) combining and commixing the mixtures of steps I) and II),IV) applying the mixture of step III) to a sheetlike substrate as a layer of constant thickness,V) applying an apertured release element to the layer of step IV) in a sheetlike manner, so that the substrate-remote surface of the layer is covered, andVI) expanding the layer of step V) to the foam to be produced.19. The method of claim 18 , wherein the prepolymer A) is mixed in step I) with a heterocyclic 4-ring or 6-ring oligomer D) of low molecular weight aliphatic diisocyanate having a molar mass of 140 to 278 g ...

FOAMS AND ARTICLES MADE FROM FOAMS CONTAINING 1-CHLORO-3,3,3-TRIFLUOROPROPENE (1233ZD)

The present invention relates to polyurethane foams having a polymeric foam structure including a plurality of closed cells therein; and an HFO or HCFO blowing agent, including HCFO-1233zd. In certain aspects, the present invention relates to foam premixes, and the resulting foam structures, that include HCFO-1233zd as blowing agent used alone, or in certain aspects, in a blend with a co-blowing agent such as cyclopentane, iso-pentane, n-pentane, or methyl formate. 1. A method for applying a sprayable polyol foam to a substrate comprising:providing a sprayable polyol foam premix composition comprising trans-1-chloro-3,3,3-trifluoropropene (1233zd(E)) as a blowing agent;spraying the polyol foam premix composition under conditions of relatively high temperature and/or relatively high temperature onto said substrate; andcuring the a polyol foam premix composition to form a closed cell foam under conditions of relatively high temperature and/or relatively high temperature onto said substrate.2. The method of claim 1 , wherein the closed cell foam exhibits an at least about 5% lambda improvement compared to the same formulation claim 1 , spray step and curing cure step except that HFC-245fa is in place of trasn-1233zd on a mole per mole basis.3. The method of claim 1 , wherein the applied foam exhibits a tack free time that is less than about 25 seconds.4. The method of claim 1 , wherein the applied foam exhibits a density variance of less than about 9.5. The method of claim 1 , wherein said gas comprises at least 50% by volume of said trans-1-chloro-3 claim 1 ,3 claim 1 ,3-trifluoropropene.6. The method of claim 1 , wherein said gas consists essentially of trans-1-chloro-3 claim 1 ,3 claim 1 ,3-trifluoropropene.7. The method of claim 1 , wherein polyurethane or polyisocyanurate foamable premix composition further comprises a polyol component claim 1 , wherein the polyol component is present in an amount of from about 60 wt. % to about 95 wt. % and wherein trans-1-chloro ...

Method for producing expandable granulates containing polylactic acid

The invention relates to a process for producing expandable pelletized material which comprises polylactic acid which comprises the following steps: a) melting and incorporation by mixing of the following components: i) from 50 to 99.9% by weight, based on the total weight of components i to iii), of polylactic acid, ii) from 0 to 49.9% by weight, based on the total weight of components i to iii), of one or more further polymers, iii) from 0.1 to 2% by weight, based on the total weight of components i to iii), of a diepoxide or polyepoxide, and iv) from 0 to 10% by weight of one or more additives, b) incorporation by mixing of v) from 3 to 7% by weight, based on the total weight of components i to iv), of an organic blowing agent into the polymer melt by means of a static or dynamic mixer at a temperature of at least 140° C., c) discharging through a die plate with holes, the diameter of which at the exit from the die is at most 1.5 mm, and d) pelletizing the melt comprising blowing agent directly downstream of the die plate, and under water, at a pressure in the range from 1 to 20 bar. The invention further relates to expandable pelletized material which comprises polylactic acid and which is obtainable by said process, and also to specific expandable pelletized material which comprises polylactic acid and which has a proportion of from 3 to 7% by weight of an organic blowing agent, preferably n-pentane and particularly preferably isopentane. The invention further relates to a preferred process for producing expandable pelletized material which comprises blowing agent and which comprises polylactic acid, and which has low bulk density.

Enhanced process for the production of expanded PVC and plastic materials based on expanded PVC obtained therewith

A process for the production of expanded PVC of the type includes heating a mass of polymeric mixture inside a closed mold; controlling the expansion of the mass in an environment having a constant volume defined by the closed mold, control being performed by the presence, in the mass of polymeric mixture, of microparticles of a compressible material, suitable for being contracted, under the action of the pressure generated by the formation and expansion of microcells of expanding gas in the same mass, from an initial form having a larger volume, to a form having a smaller volume; and expanding the microparticles, from their configuration to the initial configuration, the density of the expanded material thus obtained being determined by the contemporary presence of both microcells of expanding gas and the microparticles in their configuration having a larger volume. 1. A process for producing expanded PVC , which comprises:heating a mass of polymeric mixture inside a closed mold;controlling expansion of said mass due to hot molding in an environment having a constant volume defined by the closed mold, said controlling being obtained by a presence, in the mass of polymeric mixture, of microparticles of a compressible material, suitable for being contracted, under action of pressure generated by formation and expansion of microcells of blowing gas in the mass of polymeric mixture, from first form having a larger volume, to a second form having a smaller volume; andexpanding the microparticles contained in the mass of molded expanded material, from the second form to the first form, a density of said expanded material being determined by a contemporary presence, in the mass of the expanded material, of both the micro-cells of the blowing gas and the microparticles in their first form.2. The process according to claim 1 , wherein said expanding step is carried out under humid conditions.3. The process according to claim 1 , wherein said microparticles are in the form ...

WASHABLE VISCOELASTIC FLEXIBLE POLYURETHANE FOAMS

A process for producing viscoelastic flexible polyurethane foams having an air flow value of at least 1 dm/s is provided. A polymeric compound having isocyanate-reactive groups in addition to a polyisocyanate is used in the process. The viscoelastic flexible polyurethane foam obtained by such a process and the use of such polyurethane foams for mattresses and cushions are also described. 2. The process according to wherein the fraction of monool (d) is from 0.1 to 5 wt % claim 1 , based on the total weight of polymeric compounds having isocyanate-reactive groups (b) and compounds having one isocyanate-reactive group (d).3. The process according to or wherein the fraction of compounds b1) to b4) claim 1 , based on the total weight of polymeric compounds having isocyanate-reactive groups (b) claim 1 , is at least 95 wt %.4. The process according to any of to wherein the tensile strength of viscoelastic polyurethane foam is at least 100 kPa.5. The process according to any of to wherein the absolute maximum of the loss modulus lies in the temperature range from 15 to 30° C.6. The process according to any of to wherein polyisocyanate (a) comprises diphenylmethane diisocyanate.7. The process according to any of to wherein polyisocyanate (a) comprises toluene diisocyanate.8. The process according to any of to wherein polyisocyanate (a) comprises isocyanate prepolymers.9. The process according to any of to wherein said blowing agent (c) comprises water.10. The process according to wherein the fraction of water claim 9 , based on the total weight of components (a) to (f) claim 9 , is from 1 to 5 wt %.11. The process according to any of to wherein the step of curing the reaction mixture to the polyurethane foam takes place in a mold.12. The process according to any of to wherein the reaction mixture is foamed free-risen.13. The process according to any of to wherein the reaction mixture is foamed in a closed mold.14. A viscoelastic flexible polyurethane foam obtainable ...

FABRICATING POROUS MATERIALS USING INTREPENETRATING INORGANIC-ORGANIC COMPOSITE GELS

Porous materials are fabricated using interpenetrating inorganic-organic composite gels. A mixture or precursor solution including an inorganic gel precursor, an organic polymer gel precursor, and a solvent is treated to form an inorganic wet gel including the organic polymer gel precursor and the solvent. The inorganic wet gel is then treated to form a composite wet gel including an organic polymer network in the body of the inorganic wet gel, producing an interpenetrating inorganic-organic composite gel. The composite wet gel is dried to form a composite material including the organic polymer network and an inorganic network component. The composite material can be treated further to form a porous composite material, a porous polymer or polymer composite, a porous metal oxide, and other porous materials. 1. A method comprising:treating a precursor solution comprising an inorganic gel precursor, an organic polymer gel precursor, and a solvent to form an inorganic wet gel comprising the organic polymer gel precursor and the solvent;treating the inorganic wet gel to form a composite wet gel comprising an organic polymer network in the inorganic wet gel; anddrying the composite wet gel to form a composite material comprising the organic polymer network and an inorganic network component.2. The method of claim 1 , further comprising treating the composite material to form a porous composite material.3. The method of claim 1 , further comprising treating the composite material to remove at least some of the inorganic network component from the composite material claim 1 , thereby yielding a porous polymer or a porous polymer composite.4. The method of claim 3 , wherein treating the composite material comprises etching out the inorganic network component with an acid or base claim 3 , and dissolving or decomposing the inorganic network component.5. The method of claim 1 , further comprising heating the composite material with a sufficient amount of oxygen to remove the ...

Expanded polyolefin containing powdered activated carbon

A pre-expanded polyolefin particle containing powdered activated carbon (PAC) and a pre-expanded polyolefin particle containing PAC and a sterically hindered amine ether flame retardant, as well as processes for preparing pre-expanded polyolefin particles. A process for producing the pre-expanded polyolefin includes providing polyolefin polymer granules containing powdered activated carbon; impregnating the polyolefin polymer granules with a volatile blowing agent in an aqueous suspension at a pressure of 5 to 50 bar and at temperatures of 100 to 170° C.; and decompression to atmospheric pressure.

Porous Calcium Phospate Granules and Methods of Making and Using the Same

Porous calcium phosphate granules and methods of making the same are provided. Embodiments of the methods include producing a solid spherical granule precursor that includes: (i) a calcium phosphate component; and (ii) a porogen component; and (b) removing the porogen component from the solid spherical granule precursor to produce a spherical porous calcium phosphate granule. Granules of the invention find use in a variety of different applications. 1. A method of making a spherical porous calcium phosphate granule , the method comprising: (i) a calcium phosphate component; and', '(ii) a porogen component; and, '(a) producing a solid spherical granule precursor comprising(b) removing the porogen component from the solid spherical granule precursor to produce a spherical porous calcium phosphate granule.2. The method according to claim 1 , wherein the solid spherical granule precursor is produced by:combining a calcium phosphate powder, a porogen and a liquid vehicle to produce a liquid precursor composition; andmaking a solid spherical granule precursor from the liquid precursor composition.3. The method according to claim 2 , wherein the solid spherical granule precursor is made by:fabricating a droplet from the liquid precursor composition; andsolidifying the droplet.4. The method according to claim 3 , wherein the liquid precursor composition includes a polymeric component and the droplet is solidified by insolubilizing the polymeric component.5. The method according to claim 4 , wherein the polymeric component is insolubilized by contacting the droplet with an insolubilizing agent.6. The method according to claim 5 , wherein the polymeric component is a water-soluble alginic salt and the insolubilizing agent is a salt of a divalent cation.7. The method according to claim 6 , wherein the water-soluble alginic salt is sodium alginate and the divalent cation salt is a calcium salt.8. The method according to claim 1 , wherein the calcium phosphate component ...

EXTRUSION OF POLYURETHANE COMPOSITE MATERIALS

Methods of extruding polyurethane composite materials are described. One method includes introducing at least one polyol and inorganic filler to a first conveying section of the extruder, transferring the at least one polyol and inorganic filler to a first mixing section of an extruder, mixing the at least one polyol and the inorganic filler in the first mixing section, transferring the mixed at least one polyol and inorganic filler to a second conveying section of the extruder, introducing a di- or poly-isocyanate to the second conveying section, transferring the mixed at least one polyol and inorganic filler and the di- or poly-isocyanate to a second mixing section, mixing the mixed at least one polyol and inorganic filler with the di- or poly-isocyanate in the second mixing section of the extruder to provide a composite mixture, and transferring the composite mixture to an output end of the extruder. Other related methods are also described. 1. A method of forming a polymeric composite material in an extruder , the method comprising:introducing at least one polyol and inorganic filler to a first conveying section of the extruder;transferring the at least one polyol and inorganic filler to a first mixing section of an extruder;mixing the at least one polyol and the inorganic filler in the first mixing section;transferring the mixed at least one polyol and inorganic filler to a second conveying section of the extruder;introducing a di- or poly-isocyanate to the second conveying section, wherein the ratio of the di- or poly-isocyanate to the at least one polyol is about 0.5:1 to about 1.5:1;transferring the mixed at least one polyol and inorganic filler and the di- or poly-isocyanate to a second mixing section;mixing the mixed at least one polyol and inorganic filler with the di- or poly-isocyanate in the second mixing section of the extruder to provide a composite mixture; andtransferring the composite mixture to an output end of the extruder.2. The method of claim ...

ADDITIVE COMPOSITION USEFUL FOR CONTROLLING THE FOAM PROPERTIES IN THE PRODUCTION OF FLEXIBLE POLYURETHANE FOAMS CONTAINING POLYOLS BASED ON RENEWABLE RAW MATERIALS

The present invention relates to an additive composition useful as additive for controlling the foam properties of polyurethane foams which is characterized in that it contains at least one ionic surfactant A selected from those of formula AM where A=anion selected from the group comprising alkyl and aryl sulphates, polyether sulphates and sulphonates, sulphonates, alkyl and aryl sulphonates, alkyl and aryl carboxylates, saccharinates and polyether phosphates, and M=cation, and/or at least one anionic surfactant B selected from a quaternized ammonium compound, and at least one tertiary amine compound C, which has a molar mass of at least 150 g/mol, and/or at least one oxazasilinane D, a process for production of polyurethane foam by using this additive composition and also correspondingly produced polyurethane foams and use thereof. 2. The additive composition according to claim 1 , wherein the mass ratio of the sum total of all surfactants A and B to the sum total of all tertiary amine compounds is in a range from 20:1 to 1:10.3. The additive composition according to claim 1 , wherein component c) and component d) are both present in said additive composition.4. The additive composition according to claim 3 , wherein the mass ratio of the sum total of all tertiary amine compounds to the sum total of all oxazasilinanes is in a range from 500:1 to 1:1.6. The additive composition according to claim 1 , wherein both component a) and compound b) are present in said additive composition.7. The additive composition according to claim 1 , further comprising one or more substances selected from nucleating agents claim 1 , stabilizers claim 1 , cell openers claim 1 , crosslinkers claim 1 , emulsifiers claim 1 , flame retardants claim 1 , antioxidants claim 1 , antistatics claim 1 , biocides claim 1 , color pastes claim 1 , solid fillers claim 1 , amine catalysts claim 1 , metal catalysts and buffering substances.10. The process according to claim 9 , wherein the additive ...

Polymer Composite Foams

Foamed polymeric compositions containing clay nucleating agents are described. The clays are preferably sepioiite, palygorskite/attapulgite, or combinations thereof. Also described are processes for forming the foamed compositions. The resulting products find particular application as insulation and packaging materials.

Renewable Polyester Film having a Low Modulus and High Tensile Elongation

A film that is formed from a thermoplastic composition is provided. The thermoplastic composition contains a rigid renewable polyester and a polymeric toughening additive. The toughening additive can be dispersed as discrete physical domains within a continuous matrix of the renewable polyester. An increase in deformation force and elongational strain causes debonding to occur in the renewable polyester matrix at those areas located adjacent to the discrete domains. This can result in the formation of a plurality of voids adjacent to the discrete domains that can help to dissipate energy under load and increase tensile elongation. To even further increase the ability of the film to dissipate energy in this manner, the present inventors have discovered that an interphase modifier may be employed that reduces the degree of friction between the toughening additive and renewable polyester and thus reduces the stiffness (tensile modulus) of the film.

Aqueous Delivery System for Low Surface Energy Structures

An aqueous delivery system is described including at least one surfactant and at least one water insoluble wetting agent. Further described are low surface energy substrates, such as microporous polytetrafluoroethylene, coated with such an aqueous solution so as to impart a change in at least one surface characteristic compared to the surface characteristics of the uncoated low surface energy substrate.

Cryogels of pva-boronic acid containing co-polymers for cell culture

A cryogel contains a polyol and a co-polymer of Formula (I).

Compositions containing fluorine substituted olefins and methods and systems using same

Disclosed are the use of fluorine substituted olefins, including tetra- and penta-fluoropropenes, in a variety of applications, including in methods of depositing catalyst on a solid support, methods of sterilizing articles, cleaning methods and compositions, methods of applying medicaments, fire extinguishing/suppression compositions and methods, flavor formulations, fragrance formulations and inflating agents.

PARTICLE-COMPRISING POLYETHER ALCOHOLS

The invention relates to particle-comprising polyether alcohols which can be prepared by in-situ polymerization of olefinically unsaturated monomers in a polyether alcohol, wherein the polymerization is carried out in the presence of at least one compound (A) comprising a polyethersiloxane chain on which at least one polyether chain comprising at least one reactive hydrogen atom and a polyether chain comprising at least one olefinic double bond are present. 1. A particle-comprising polyether alcohol which can be prepared by in-situ polymerization of olefinically unsaturated monomers in a polyether alcohol , wherein the polymerization is carried out in the presence of at least one compound (A) comprising a polysiloxane chain to which at least one polyether chain comprising at least one reactive hydrogen atom and a polyether chain comprising at least one olefinic double bond are bound.4. The particle-comprising polyether alcohol according to any of to , wherein the compounds (A) have from 0.7 to 1 groups C in the molecule.5. The particle-comprising polyether alcohol according to any of to , wherein the compounds (A) have a molecular weight Mn of 8000 to 30 000.6. The particle-comprising polyether alcohol according to any of to , wherein the compounds (A) have from 8 to 25 units A and/or C in the molecule.7. The particle-comprising polyether alcohol according to any of to , wherein between each two units A and/or C there are on average from 2 to 8 units C.8. The particle-comprising polyether alcohol according to any of to having a content of particles of from 35% by weight to 65% by weight , based on the weight of the graft polyol.9. The particle-comprising polyether alcohol according to any of to having a hydroxyl number of 40-260 mg KOH/g.10. The particle-comprising polyether alcohol according to any of to , wherein styrene and/or acrylonitrile are used as olefinically unsaturated monomers.11. A process for preparing the particle-comprising polyether alcohols by in- ...

PARTICLE-COMPRISING POLYETHER ALCOHOLS

The invention relates to particle-comprising polyether alcohols which can be prepared by in-situ polymerization of olefinically unsaturated monomers in a polyether alcohol, wherein the polymerization is carried out in the presence of at least one compound (A) comprising a polysiloxane chain to which at least one polyether chain comprising at least one reactive hydrogen atom and a polyether chain comprising at least one olefinic double bond are bonded. 1. A particle-comprising polyether alcohol which can be prepared by in-situ polymerization of olefinically unsaturated monomers in a polyether alcohol , wherein the polymerization is carried out in the presence of at least one compound (A) comprising a polysiloxane chain to which at least one polyether chain comprising at least one reactive hydrogen atom and at least one polyether chain comprising at least one olefinic double bond are bonded.4. The particle-comprising polyether alcohol according to either of and , wherein the compounds (A) have from 0.7 to 1 group C in the molecule.5. The particle-comprising polyether alcohol according to any of to , wherein the compounds (A) have a molecular weight Mn of from 8000 to 30 000.6. The particle-comprising polyether alcohol according to any of to , wherein in the compounds (A) there are on average from 7 to 20 units B between each 2 units A and/or C.7. The particle-comprising polyether alcohol according to any of to having a content of particles of from 35% by weight to 65% by weight , based on the weight of the graft polyol.8. The particle-comprising polyether alcohol according to any of to having a hydroxyl number of from 40 to 260 mg KOH/g.9. The particle-comprising polyether alcohol according to any of to , wherein styrene and/or acrylonitrile are used as olefinically unsaturated monomers.10. A process for preparing the particle-comprising polyether alcohols by in-situ polymerization of olefinically unsaturated monomers in a polyether alcohol , wherein the ...

PROCESS FOR MAKING LOW COMPRESSION AND HIGH AIRFLOW MDI VISCOELASTIC POLYURETHANE FOAM

A reaction system comprising an organic polyisocyanate and an isocyanate reactive component for preparation of a viscoelastic polyurethane foam is provided. The isocyanate reactive component comprises (i) from 10 to 50% by weight of one or more low equivalent weight propylene oxide rich (PO-rich) polyols having a combined number average equivalent weight from 200 to 500, (ii) from 45 to 95% by weight of one or more ethylene oxide (EO-rich) polyols having a combined number average equivalent weight from 200 to 800 and an ethylene oxide content from 40% to 65% by weight of the total mass of the EO-rich polyol and at least one of (iii) from 10 to 30% by weight of one or more high equivalent weight PO-rich polyols having a number average equivalent weight from 800 to 2,000 or (iv) from 10 to 40% by weight of one or more propylene oxide co-polymer polyols containing styrene-acrylonitrile. 1. A reaction system for preparation of a viscoelastic polyurethane foam comprising:(a) an organic polyisocyanate; and (i) from 10 to 50% by weight of the isocyanate reactive component of one or more low equivalent weight propylene oxide rich (PO-rich) polyols having a combined number average equivalent weight from 200 to 500;', '(ii) from 45 to 95% by weight of the isocyanate reactive component of one or more ethylene oxide (E0-rich) polyols having a combined number average equivalent weight from 200 to 800 and an ethylene oxide content from 30% to 75% by weight of the total mass of the EO-rich polyol; and at least one of', '(iii) from 10 to 30% by weight of the isocyanate reactive component of one or more high equivalent weight propylene oxide rich (PO-rich) polyols having a number average equivalent weight from 800 to 2,000; and', '(iv) from 10 to 40% by weight of the isocyanate reactive component of one or more propylene oxide co-polymer polyols containing styrene-acrylonitrile., '(b) an isocyanate reactive component comprising2. The reaction system of claim 1 , wherein the one or ...

PROCESS FOR PRODUCING EXPANDED POLYOLEFIN RESIN PARTICLES AND EXPANDED POLYOLEFIN RESIN PARTICLES

A process for producing expanded polyolefin resin particles with use as a foaming agent of water contained in an aqueous dispersion medium. The process includes dispersing polyolefin resin particles together with the aqueous dispersion medium into a closed vessel; heating the polyolefin resin particles up to or above a softening temperature of the polyolefin resin particles and pressurizing the polyolefin resin particles; and releasing the polyolefin resin particles into a zone whose pressure is lower than an internal pressure of the closed vessel. The polyolefin resin particles are composed of a polyolefin resin composition including polyolefin resin, polyvalent alcohol and a foam nucleating agent. 1. (canceled)2. A process for producing expanded polyolefin resin particles with use as a foaming agent of water contained in an aqueous dispersion medium , the process including the steps of: dispersing polyolefin resin particles together with the aqueous dispersion medium into a closed vessel; heating the polyolefin resin particles up to or above a softening temperature of the polyolefin resin particles and pressurizing the polyolefin resin particles; and releasing the polyolefin resin particles into a zone whose pressure is lower than an internal pressure of the closed vessel , the polyolefin resin particles being composed of a polyolefin resin composition comprising:polyolefin resin;polyvalent alcohol in not less than 0.05 parts by weight to not more than 2 parts by weight to 100 parts by weight of the polyolefin resin, the polyvalent alcohol having a carbon number of not less than 3 to not more than 6 and three or more hydroxyl groups; anda foam nucleating agent.37-. (canceled)8. The process as set forth in claim 2 , wherein the polyvalent alcohol having a carbon number of not less than 3 to not more than 6 and three or more hydroxyl groups is one or more types selected from among glycerin claim 2 , diglycerin claim 2 , pentaerythritol claim 2 , trimethylolpropane ...

NOVEL ACRYLAMIDE-BASED MESOPOROUS POLYMER AND PREPARATION METHOD THEREOF

The present invention relates to an acrylamide-based mesoporous polymer and its preparation method, where the acrylamide-based mesoporous polymer is fabricated by a simple preparation method to have uniform minute pores controllable in pore size and thereby applicable to a wide variety of fields. 3. The acrylamide-based mesoporous polymer as claimed in claim 1 , wherein R″ is a substituent at ortho- claim 1 , meta- or para-position of an aromatic ring included in Z.4. The acrylamide-based mesoporous polymer as claimed in claim 1 , wherein the acrylamide-based mesoporous polymer has a number-average molecular weight of 5000 to 500000.5. The acrylamide-based mesoporous polymer as claimed in claim 1 , wherein the acrylamide-based mesoporous polymer is a crystalline polymer having a melting point (T) of 200 to 300° C.6. The acrylamide-based mesoporous polymer as claimed in claim 1 , wherein the pore diameter decreases by 0.4 to 0.7 nm after an annealing at a temperature of 200° C. or more and below the melting point of the acrylamide-based mesoporous polymer.7. The acrylamide-based mesoporous polymer as claimed in claim 1 , wherein the acrylamide-based mesoporous polymer includes pores having a diameter increasing by 0.1 to 2.0 nm with a change in the chemical structure of R′ or with an increase in the number of carbon atoms of R″.9. The preparation method as claimed in claim 8 , further comprising claim 8 , prior to the polymerization step:preparing a reaction solution including the radical initiator, the RAFT agent, and the reactant;adding the reaction solution in a polymerization ampoule and eliminating oxygen by a freeze-thaw method; andsealing the ampoule.10. The preparation method as claimed in claim 8 , further comprising claim 8 , after the precipitation step:dissolving the precipitated polymer product in an organic solvent; andre-precipitating the polymer product solution with the nonsolvent.11. The preparation method as claimed in claim 8 , wherein the monomer ...

MULTIFUNCTIONAL BIOCOMPOSITE ADDITIVE COMPOSITIONS AND METHODS

Biocomposite compositions and compositions, which include dried distillers solubles, and which can be used in making biocomposite compositions are described. Methods for preparing the compositions are also described. 1. A biopolymer comprising:about 80 wt-% to about 99.5 wt-% of a thermoplastic, thermoset, resin, polymer adhesive material, or mixtures thereof;about 0.15 wt-% to about 10 wt-% of DDS;about 0.025 wt-% to about 4.0 wt-% of a metal oxide; andabout 0.025 wt-% to about 10 wt-% of fiber.2. The biopolymer of claim 1 , wherein the biopolymer comprises a thermoplastic material.3. The biopolymer of claim 1 , wherein the thermoplastic material is high density polyethylene.4. The biopolymer of claim 1 , wherein the thermoplastic material comprises mixed recycled plastics.5. The biopolymer of claim 1 , further comprising about 0.005 wt-% to about 6 wt-% latex or acrylic latex.6. A method of making a foamed composition comprising: about 80 wt-% to about 99.5 wt-% of a thermoplastic material;', 'about 0.15 wt-% to about 10 wt-% of DDS;', 'about 0.025 wt-% to about 4.0 wt-% of a metal oxide; and', 'about 0.025 wt-% to about 10 wt-% of fiber; and, 'combining a mixture comprisingforming the foamed composition by extruding or molding the mixture.7. A method of lowering the processing temperature of a thermoplastic material comprising: about 80 wt-% to about 99.5 wt-% of a thermoplastic, or thermoplastic mixture;', 'about 0.15 wt-% to about 10 wt-% of DDS;', 'about 0.025 wt-% to about 4.0 wt-% of a metal oxide; and', 'about 0.025 wt-% to about 10 wt-% of fiber; and, 'combining a mixture comprisingprocessing the mixture at a temperature about 10% to about 35% below the processing temperature of the thermoplastic alone or thermoplastic mixture alone.8. A method for processing an incompatible thermoplastic mixture into a homogeneous thermoplastic composition comprising: about 80 wt-% to about 99.5 wt-% of a mixture of incompatible thermoplastic materials;', 'about 0.15 wt-% ...

HYDROPHILIC, ALIPHATIC POLYURETHANE FOAMS

The invention relates to a method for producing hydrophilic, aliphatic polyurethane foams. The invention further relates to special compositions for producing polyurethane foams either using the method according to the invention or using the polyurethane foams obtained from the compositions according to the invention, and to the use of the polyurethane foams as a wound dressing, cosmetic item, or incontinence product. 115-. (canceled)17. The process as claimed in claim 16 , wherein the alkali metal salts of weak inorganic acids B) are selected from the group consisting of sodium hydroxide claim 16 , sodium bicarbonate and sodium carbonate.18. The process as claimed in claim 16 , wherein isocyanate-functional prepolymers A) having a weight fraction of below 1.0 wt % for low molecular weight aliphatic diisocyanates having a molar mass of 140 to 278 g/mol claim 16 , based on the prepolymer claim 16 , are used.19. The process as claimed in claim 16 , wherein the components A) to H) are used in the following amounts:A) 100 parts by weight of isocyanate-functional prepolymers,B) 0.01 to 5 parts by weight of alkali metal salts of weak inorganic acids,C) 0.1 to 200 parts by weight of water,D) 0 to 100 parts by weight of heterocyclic oligomers,E) 0 to 1 part by weight of catalysts,F) 0 to 10 parts by weight of surfactants,G) 0 to 20 parts by weight of mono- or polyhydric alcohols, andH) 0 to 60 parts by weight of hydrophilic polyisocyanates.20. The process as claimed in claim 19 , wherein the composition comprises 10 to 100 parts by weight of heterocyclic oligomers D).21. The process as claimed in claim 19 , wherein the composition comprises 20 to 90 parts by weight of heterocyclic oligomers D).22. The process as claimed in claim 19 , wherein the composition comprises 20 to 80 parts by weight of heterocyclic oligomers D).23. The process as claimed in claim 16 , wherein the low molecular weight aliphatic diisocyanates A1) are hexamethylene diisocyanate (HDI) claim 16 , ...

Process for the continuous production of polyetherols

The present invention relates to a process for the continuous production of polyether alcohols by catalyzed addition of at least one alkylene oxide to at least one hydrogen-functional starter compound, wherein at least one catalyst exhibits the structural element R1/R2C=N−R3.

HIGH STRENGTH EXTRUDED THERMOPLASTIC POLYMER FOAM

Prepare extruded thermoplastic polymer foam by preparing a foamable polymer mixture containing thermoplastic polymer and blowing agent at a mixing pressure, cooling the foamable polymer mixture and extruding it through a foaming die at a die pressure at least 90 bars lower than the mixing pressure and out through a die opening having cross sectional dimensions of 2.5 millimeter or more and a cross sectional area of at least 700 square millimeters at a flow rate greater than 500 kilograms per hour and allow it to expand into a polymer foam between shaping elements while restraining the extrusion rate with a restraining device so as to form polymer foam having 96 volume percent or less void volume, anisotropic cell size, a thickness of 50 millimeter or greater, compressive and tensile moduli in the thickness dimension greater than 35 mega pascals and an average shear modulus greater than 16 mega pascals. 2. The process of claim 1 , further characterized by the temperature difference between the die and foamable polymer mixture within the die being less than six degrees Celsius.3. The process of claim 1 , further characterized by the pressure difference between the mixing pressure and die pressure being at least 100 bars.4. The process of claim 1 , further characterized by the foamable polymer mixture comprising a blowing agent selected from carbon dioxide claim 1 , butane isomers claim 1 , and 1 claim 1 ,1 claim 1 ,1 claim 1 ,2-tetrafluoroethane.5. The process of claim 4 , further characterized by the foamable polymer mixture comprising at least 0.08 moles of blowing agent per hundred grams of thermoplastic polymer.6. The process of claim 1 , further characterized by the foamable polymer mixture comprising polystyrene.7. The process of claim 6 , further characterized by the polystyrene having a weight-averaged molecular weight of 140 claim 6 ,000 grams per mole or more.8. The process of claim 6 , further characterized by the foamable polymer mixture comprising carbon ...

PROCESS FOR PREPARING FOAMED POLYMER

The invention pertains to a process for producing a glycerol tri-carboxylic acid polyester foam which comprises the steps of combining glycerol and a tri-carboxylic acid in the liquid phase to provide a reaction mixture, and keeping the reaction mixture at a temperature of between 80° C. and 130+ C. from the start of the reaction until a conversion of at least 90% is obtained. 1. The process for producing a glycerol tri-carboxylic acid polyester foam which comprises: combining glycerol and a tri-carboxylic acid in liquid phase to provide a reaction mixture , and keeping the reaction mixture at a temperature from 80° C. to 130° C. from start of reaction until a conversion of at least 90% is obtained.2. The process according to wherein the tri-carboxylic acid is citric acid.3. The process according to claim 1 , wherein the temperature of the reaction mixture is not elevated above 130° C. before a conversion of at least 95% has been obtained claim 1 , optionally claim 1 , a conversion of at least 98%.4. The process according to claim 1 , wherein the temperature of the reaction mixture is not elevated above 125° C. before a stipulated degree of conversion is reacted claim 1 , optionally not above 120° C.5. The process according to claim 1 , wherein reaction is carried out for at least a portion of time above the boiling point of water claim 1 , optionally above the point where vapor pressure of liquid equals environmental pressure surrounding the liquid.6. The process according to claim 1 , wherein the reaction mixture is seeded with pulverized polymer particles as seed claim 1 , optionally in an amount of 1-30 wt. %.7. The process according to wherein the polymer Seed comprises a glycerol-citric acid polymer.8. The process according to wherein the seed is of a polymer based on other monomers than citric acid or glycerol.9. The process according to claim 1 , wherein water is added to the reaction mixture in an amount of at least 2 wt. % on the total of acid and glycerol ...

POROUS RESIN PARTICLES, METHOD OF MANUFACTURING THE SAME, AND USE OF THE SAME

The present invention provides porous resin particles made of a polymer of a monomer mixture, wherein the monomer mixture contains, as monomers, at least methyl methacrylate and a (meth)acrylic-based cross-linkable monomer, a content of the methyl methacrylate in the monomer mixture is 1 to 50% by weight, a content of the (meth)acrylic-based cross-linkable monomer in the monomer mixture is 50 to 99% by weight, the porous resin particles have a specific surface area of 130 to 180 m/g, a pore volume of 0.3 to 0.7 ml/g, and an average pore size of 13 to 16 nm, an amount of unreacted methyl methacrylate remaining in the porous resin particles is 20 ppm or less, and the porous resin particles have a thermal decomposition starting temperature of 260° C. or more. 1. Porous resin particles made of a polymer of a monomer mixture ,wherein the monomer mixture contains, as monomers, at least methyl methacrylate and a (meth)acrylic-based cross-linkable monomer,a content of the methyl methacrylate in the monomer mixture is 1 to 50% by weight,a content of the (meth)acrylic-based cross-linkable monomer in the monomer mixture is 50 to 99% by weight,{'sup': '2', 'the porous resin particles have a specific surface area of 130 to 180 m/g, a pore volume of 0.3 to 0.7 ml/g, and an average pore size of 13 to 16 nm,'}an amount of unreacted methyl methacrylate remaining in the porous resin particles is 20 ppm or less, andthe porous resin particles have a thermal decomposition starting temperature of 260° C. or more.2. The porous resin particles according to claim 1 , wherein the (meth)acrylic-based cross-linkable monomer is ethylene glycol dimethacrylate.3. The porous resin particles according to claim 1 , containing an antioxidant.4. The porous resin particles according to claim 1 , having a volume-average particle size of 1 to 20 μm.5. A method of manufacturing porous resin particles claim 1 , comprising:a polymerization step of suspension-polymerizing a monomer mixture containing 1 to 50 ...

EPDM FOAM, PRODUCING METHOD THEREOF, AND SEALING MATERIAL

An EPDM foam is obtained by foaming a foam composition containing, based on 100 parts by weight of an ethylenepropylenediene rubber, 0.1 to 5 parts by weight of a vulcanizer, 0.1 to 10 parts by weight of a vulcanization accelerator, 1 to 30 parts by weight of a foaming agent, and a foaming auxiliary agent. The vulcanization accelerator contains a thiourea vulcanization accelerator, a thiazole vulcanization accelerator, a dithiocarbamate vulcanization accelerator, and a thiuram vulcanization accelerator such that a thiourea vulcanization accelerator/thiazole vulcanization accelerator/dithiocarbamate vulcanization accelerator/thiuram vulcanization accelerator weight ratio is in a range of 1 to 20/1 to 20/1 to 20/1 to 30. 16.-. (canceled)7. A producing method of an EPDM foam , comprising:a preparation step of preparing a foam composition containing, based on 100 parts by weight of an ethylenepropylenediene rubber, 0.1 to 5 parts by weight of a vulcanizer, 0.1 to 10 parts by weight of a vulcanization accelerator containing a thiourea vulcanization accelerator, a thiazole vulcanization accelerator, a dithiocarbamate vulcanization accelerator, and a thiuram vulcanization accelerator such that a thiourea vulcanization accelerator/thiazole vulcanization accelerator/dithiocarbamate vulcanization accelerator/thiuram vulcanization accelerator weight ratio is in a range of 1 to 20/1 to 20/1 to 20/1 to 30, 1 to 30 parts by weight of a foaming agent, and a foaming auxiliary agent; anda foaming step of heating the foam composition to vulcanize and foam the foam composition.8. The producing method of the EPDM foam according to claim 7 , further comprising:a molding step of extruding the foam composition, whereinthe molding step includes vulcanizing and foaming the foam composition extruded by the forming step. The present application claims priority from Japanese Patent Application No. 2009-276576 filed on Dec. 4, 2009, the content of which is hereby incorporated by reference into ...

Process for the production of expanded plastic materials, in particular PVC-based polymeric foams and a formulation of a polymeric blend for effecting said process

A perfected process for the production of expanded plastic materials, comprising a hot moulding phase of a starting polymeric blend inside a mould, wherein the heating of said blend is effected by making the same a heat source, by triggering an exothermic reaction in its interior. With respect to the known art in the field, the process of the invention allows an improvement in the heating of the polymeric mass inside the mould, reducing the times necessary for effecting it and homogenizing the thermal values inside this mass. 1. A perfected process for the production of expanded plastic materials , comprising a hot moulding phase of a starting polymeric blend inside a mould , characterized in that the heating of said blend is effected by making the same a heat source , by triggering an exothermic reaction in its interior.2. The process according to claim 1 , characterized in that said triggering of the exothermic reaction is effected by supplying heat from the outside of said mould.3. The process according to or claim 1 , characterized in that said exothermic reaction is suitable for bringing the mentioned blend to the melting point of the polymer or polymers of which it is formed.4. The process according to to claim 1 , characterized in that said exothermic reaction is effected by adding an activator of the mentioned exothermic reaction claim 1 , to said starting polymeric blend.5. The process according to claim 4 , characterized in that said activator is selected from catalysts claim 4 , emulsifiers and surfactants claim 4 , alone or combined with each other.6. The process according to to claim 4 , characterized in that said exothermic reaction is effected by means of activators present from the start claim 4 , as synthesis intermediates of the expandable polymers which are part of the mentioned starting polymeric blend.7. The process according to claim 6 , characterized in that said activators consist of catalysts claim 6 , emulsifiers and surfactants based on ...

METHOD FOR PRODUCING POLYETHER POLYOL AND METHOD FOR PRODUCING RIGID FOAM SYNTHETIC RESIN

To provide a method for producing a polyether polyol having a low viscosity and little odor, whereby when a rigid foam synthetic resin is produced, good strength and flame retardancy can be obtained. A method for producing a polyether polyol, which comprises ring-opening addition of an alkylene oxide to an initiator obtainable by reacting a phenol, an aldehyde and an alkanolamine, and which comprises a first step of ring-opening addition of at least one member selected from propylene oxide and butylene oxide to the initiator in the absence of a catalyst, and a second step of ring-opening addition of an alkylene oxide of which at least a part is ethylene oxide, to a reaction product of the first step, in the presence of a catalyst, wherein the proportion of ethylene oxide in the total amount of the alkylene oxide to be added to the initiator, is from 5 to 95 mol %. 1. A method for producing a polyether polyol , which comprises ring-opening addition of an alkylene oxide to an initiator which is a reaction product obtainable by reacting the following phenol , the following aldehyde and the following alkanolamine , whereinthe step of ring-opening addition of an alkylene oxide to an initiator comprises a first step of ring-opening addition of at least one member selected from propylene oxide and butylene oxide to the initiator in the absence of a catalyst, and a second step of ring-opening addition of an alkylene oxide of which at least a part is ethylene oxide, to a reaction product of the first step, in the presence of a catalyst, andthe proportion of ethylene oxide in the total amount of the alkylene oxide to be added by the ring-opening addition to the initiator, is from 5 to 95 mol %:Phenol: at least one member selected from the group consisting of phenol and phenol derivatives wherein at least one ortho position is unsubstituted,Aldehyde: at least one member selected from the group consisting of formaldehyde and acetaldehyde,Alkanolamine: at least one member ...

FLEXIBLE POLYURETHANE FOAMS

Embodiments of the invention provide for a method of preparing a polyurethane foam, including reacting least one initiator comprising at least two hydroxyl groups with at least one 12-hydroxystearic acid to form at least one polyester polyol, reacting the at least one polyester polyol with at least one alkoxylating agent in the presence of a DMC catalyst to form at least one polyether/polyester polyol, and reacting the at least one polyether/polyester polyol with at least one isocyanate. 1. A method of preparing a polyurethane foam , the method comprising:reacting least one initiator comprising at least two hydroxyl groups with at least one 12-hydroxystearic acid per equivalent hydroxyl of the initiator to form at least one polyester polyol;reacting the at least one polyester polyol with at least one alkoxylating agent in the presence of a DMC catalyst to form at least one polyether/polyester polyol; andreacting the at least one polyether/polyester polyol with at least one isocyanate.2. A polyurethane foam comprising the reaction product of a reaction system comprising:at least one isocyanate; andat least one polyether/polyester polyol, wherein the polyether/polyester polyol comprises at least one polyester polyol that has been alkoxylated by an alkoxylating agent in the presence of a DMC catalyst to form the at least one polyether/polyester polyol polyol, and wherein the at least one polyester polyol comprises the reaction product of at least at least one initiator comprising at least 2 hydroxyl groups and at least one 12-hydroxystearic acid per equivalent hydroxyl of the initiator.3. The method of wherein the polyurethane foam comprises a flexible foam claim 1 , the hydroxyl functionality of the initiator is from about 2 to about 4 claim 1 , the molecular weight of the initiator is from about 50 to about 180 claim 1 , from about 1 to about 2 moles of hydroxystearic acid per equivalent hydroxyl of the initiator is reacted with the initiator claim 1 , and the ...

Thermal Storage Gelatinous Triblock Copolymer Elastomer Particles in Polyurethane Flexible Foams

Combinations of gelatinous elastomer containing one or more phase change materials, known as “phase change gel”, and polyurethane foam may be made by introducing at least partially cured phase change gel particles comprising plasticized triblock copolymer resin and/or diblock copolymer resin and one or more phase change materials, into a mixture of polyurethane foam-forming components including a polyol and an isocyanate. The phase change gel can be crosslinked to form a cured gelatinous gel, which is then reduced in size before introduction. After the foam-forming components polymerize to make polyurethane foam, the phase change gel particles are discrete visible particles dispersed throughout the foam. The polyurethane reaction is exothermic and can generate sufficient temperature to at least partially melt the styrene-portion of the triblock copolymer resin thereby extending the crosslinking. The combination of phase change gel and polyurethane foam increases the heat storage capacity and thermal conductivity of the foam. 2. The composition of wherein the copolymer resin is at least partially melted by heat produced by polymerizing the polyol and the polyisocyanate to form the open cell flexible polyurethane foam.3. The composition of where the copolymer resin is a triblock copolymer resin and the copolymer resin is added in the range of about 0.1 to about 200 parts per hundred parts of the polyol component of open cell flexible polyurethane foam.4. The composition of where the copolymer resin is formed by compounding a copolymer with at least one plasticizer and a component selected from the group consisting of colorants claim 1 , thermally-conductive materials claim 1 , solvents claim 1 , elastomeric diblock copolymers claim 1 , antioxidants claim 1 , antistatic agents claim 1 , antimicrobial agents claim 1 , flame retardants claim 1 , ultraviolet stabilizers claim 1 , surface tension modifiers claim 1 , emulsifying agents claim 1 , surfactants claim 1 , ...

Polyurethane Gel-Like Polymers, Methods and Use in Flexible Foams

Combinations of open cell flexible foams with polyurethane gel-like polymers, in forms such as layers of different forms and shapes, solid sheets, perforated sheets, and particles, and methods of making the combinations are described using a variety of procedures. Alternatively, the resin to make the polyurethane gel-like polymers may be infused into the polyurethane foams. The open cell flexible foam may partially or wholly comprise polyurethane foam and latex foam.

Polyolefin Dispersions, Froths, and Foams

Polyolefin dispersions, froths, and foams and articles manufactured therefrom are disclosed. Also disclosed is a method for generating a thermoplastic foam from an aqueous dispersion. The aqueous dispersion may include a thermoplastic resin, water, and a stabilizing agent. The method may include adding at least one frothing surfactant to the aqueous dispersion to form a mixture, adding a flame retardant and/or a phase change material, frothing the mixture to create a froth, and removing at least a portion of the water to produce the foam. 180-. (canceled)81. An open-cell flame retardant foam derived from a stabilized aqueous dispersion comprising:a) a thermoplastic resin;b) at least one dispersion-stabilizing agent;c) at least one flame retardant; andd) water,wherein the thermoplastic resin comprises an ethylene homopolymer, an ethylene/α-olefin copolymer, or an ethylene/α-olefin multiblock interpolymer; a propylene homopolymer, propylene/α-olefin copolymer, or a propylene/α-olefin multiblock interpolymer; or combinations thereof.82. An open-cell flame retardant foam derived from an aqueous froth comprising:a) a thermoplastic resin comprising an ethylene homopolymer, an ethylene/α-olefin copolymer, or an ethylene/α-olefin multiblock interpolymer; a polypropylene homopolymer, a propylene/α-olefin copolymer, or a propylene/α-olefin multiblock interpolymer; or combinations thereof;b) water;c) a frothing surfactant comprising at least one of alkylcellulose ethers, hydroxyalkyl cellulose ethers, hydroxyalkyl alkylcellulose ethers, guar gum, xanthan gum, and polyoxyethylene resins of at least 20,000 molecular weight;d) a gas;e) at least one flame retardant comprising at least one selected from an inorganic salt, an intumescent, a halogenated compound, a phosphate compound, a borate compound, a melamine compound, and combinations thereof; andf) a dispersion-stabilizing agent;wherein the froth comprises from about 15 to 75 weight percent component (a), from about 25 to 75 ...

MULTIFUNCTIONAL BIOCOMPOSITE ADDITIVE COMPOSITIONS AND METHODS

Biocomposite compositions and compositions, which include dried distillers solubles, and which can be used in making biocomposite compositions are described. Methods for preparing the compositions are also described. 1. A biopolymer comprising:about 80 wt-% to about 99.5 wt-% of a thermoplastic, thermoset, resin, polymer adhesive material, or mixtures thereof; about 0.15 wt-% to about 10 wt-% of dried distillers with solubles (DDS); about 0.025 wt-% to about 4.0 wt-% of a metal oxide; and about 0.025 wt-% to about 10 wt-% of fiber.2. The biopolymer of claim 1 , wherein the biopolymer comprises a thermoplastic material.3. The biopolymer of claim 1 , wherein the thermoplastic material is high density polyethylene.4. The biopolymer of claim 1 , wherein the thermoplastic material comprises mixed recycled plastics.5. The biopolymer of claim 1 , further comprising about 0.005 wt-% to about 6 wt-% latex or acrylic latex6. A method of making a foamed composition comprising:combining a mixture comprising: about 80 wt-% to about 99.5 wt-% of a thermoplastic material; about 0.15 wt-% to about 10 wt-% of dried distillers with solubles (DDS); about 0.025 wt-% to about 4.0 wt-% of a metal oxide; and about 0.025 wt-% to about 10 wt-% of fiber; and forming the foamed composition by extruding or molding the mixture.7. A method of lowering the processing temperature of a thermoplastic material comprising:combining a mixture comprising: about 80 wt-% to about 99.5 wt-% of a thermoplastic, or thermoplastic mixture; about 0.15 wt-% to about 10 wt-% of dried distillers with solubles (DDS); about 0.025 wt-% to about 4.0 wt-% of a metal oxide; and about 0.025 wt-% to about 10 wt-% of fiber; and processing the mixture at a temperature about 10% to about 35% below the processing temperature of the thermoplastic alone or thermoplastic mixture alone.8. A method for processing an incompatible thermoplastic mixture into a homogeneous thermoplastic composition comprising:combining a mixture ...

Propylene-Alpha-Olefin Copolymer Compositions with Improved Foaming Window

The foaming window for making a foam useful in the manufacture of artificial leather is expanded through the use of a foamable composition comprising (A) a propylene-α-olefin copolymer, (B) a molecular melt (MM) comprising ′-oxydibenzenesulfonylazide (DPO-BSA) and an antioxidant, and (C) a blowing agent. The foaming window can be expanded such that foaming can occur at 220° C. for 20 to 200 or more seconds. 1. A foamable composition comprising (A) a propylene-α-olefin copolymer , (B) a molecular melt (MM) comprising 4 ,4′-oxydi-benzenesulfonylazide (DPO-BSA) and an antioxidant , and (C) a blowing agent.2. The foamable composition of in which the propylene-α-olefin copolymer has substantially isotactic propylene sequences.3. The foamable composition of in which the propylene-α-olefin copolymer has a melt flow rate of 0.1 to 25 g/10 min claim 2 , a molecular weight distribution of 3.5 or less claim 2 , and the α-olefin is ethylene.4. The foamable composition of in which the propylene-α-olefin copolymer is present in an amount of 5 to 95 weight percent based on the weight of the composition claim 3 , and the molecular melt is present in an amount of 200 to 3 claim 3 ,000 ppm and the blowing agent is present in an amount of 1 to 30 weight percent claim 3 , both based upon the weight of the propylene-α-olefin copolymer.5. The foamable composition of in which the antioxidant is a hindered phenolic compound that does not contain phosphite containing a phosphorus atom in the +3 oxidation state claim 4 , and the DPO-BSA and antioxidant are present in the molecular melt at mole ratio of 1:10 to 10:1.6. The foamable composition of in which the molecular melt comprises one or more of an internal lubricant claim 5 , stabilizing agent claim 5 , release agent claim 5 , plasticizer claim 5 , ultra-violet stabilizer and catalyst neutralizer.7. The foamable composition of the in which the blowing agent is azodicarbonamide.8. A process for preparing a foam claim 6 , the process ...

Methods and Pressure Vessels for Solid-State Microcellular Processing of Thermoplastic Rolls or Sheets

Disclosed herein are methods and pressure vessels for solid-state microcellular processing of thermoplastic rolls and sheets. In one embodiment, the present invention is directed to a method for making a gas impregnated interleaved roll, which method comprises: providing a pressure vessel having an internal pressure chamber and a rotatable shaft horizontally positioned within the pressure chamber; placing an interleaved roll about the rotatable shaft and within the pressure chamber, wherein the interleaved roll is made from a thermoplastic material sheet interleaved together with a gas-channeling material sheet; pressurizing the pressure chamber to a selected pressure; rotating the rotatable shaft having the interleaved roll thereabouts (thereby rotating the interleaved roll) while under pressure for a selected period of time; and depressurizing the internal chamber to yield the gas impregnated interleaved roll. In other embodiments, the invention is directed to multi-chambered pressure vessels for gas impregnation of thermoplastic rolls, sheets, and films. 113.-. (canceled)14. A method for gas impregnation of an intermittently fed thermoplastic material sheet , comprising:providing a pressure vessel having at least two outer pressure chambers sandwiching a central pressure chamber, wherein the central pressure chamber is separated from each of the two outer pressure chambers by respective interior sealable pass-through slots, wherein each of the interior sealable pass-through slots is defined by a rectangular opening having a pair of adjacently positioned confronting static seals for sealably engaging the intermittently fed thermoplastic material sheet, and wherein each of the two outer and central pressure chambers are separably pressurable to selected first, second, and third pressures, respectively;pressurizing each of the two outer and central pressure chambers to the selected first, second, and third pressures; andintermittently feeding the thermoplastic ...

USE OF DI(ISONONYL)CYCLOHEXANOATE (DINCH) IN EXPANDABLE PVC FORMULATIONS

The invention relates to a foamable composition containing at least one polymer selected from the group consisting of polyvinyl chloride, polyvinylidene chloride, polyvinyl butyrate, polyalkyl (meth)acrylate and copolymers thereof, a foam former and/or foam stabilizer and diisononyl 1,2-cyclohexanedicarboxylate as plasticizer. 1. A foamable composition comprising:at least one polymer selected from the group consisting of polyvinyl chloride, polyvinylidene chloride, polyvinyl butyrate, polyalkyl (meth)acrylate and a copolymer thereof,a foam former, a foam stabilizer, or both,and diisononyl 1,2-cyclohexanedicarboxylate, as plasticizer.2. The foamable composition according to claim 1 , wherein the polymer is polyvinyl chloride.3. The foamable composition according to claim 1 , wherein the polymer is a copolymer of vinyl chloride with at least one monomer selected from the group consisting of vinylidene chloride claim 1 , vinyl butyrate claim 1 , methyl acrylate claim 1 , ethyl acrylate and butyl acrylate.4. The foamable composition according to claim 1 , wherein an amount of diisononyl 1 claim 1 ,2-cyclohexanedicarboxylate is from 5 to 150 parts by mass per 100 parts by mass of the polymer.5. The foamable composition according to claim 1 , further comprising a plasticizer other than diisononyl 1 claim 1 ,2-cyclohexanedicarboxylate.6. The foamable composition according to claim 1 , comprising a gas bubble evolver component as the foam former and optionally a kicker.7. The foamable composition according to claim 1 , comprising emulsion PVC.8. The foamable composition according to claim 1 , further comprising at least one additive selected from the group consisting of a filler claim 1 , a pigment claim 1 , a thermal stabilizer claim 1 , an antioxidant claim 1 , a viscosity regulator claim 1 , a foam stabilizer and a lubricant.9. The foamable composition according to claim 1 , wherein the composition is suitable for floor coverings claim 1 , wall coverings or artificial ...

Use of di(2-ethylhexyl)terephthalate (deht) in foamable pvc formulations

The invention relates to a foamable composition containing a polymer selected from the group consisting of polyvinyl chloride, polyvinylidene chloride, polyvinyl butyrate, polyalkyl(meth)acrylate and copolymers thereof, a foam former and/or foam stabilizer and di-2-ethylhexyl terephthalate as plasticizer. The invention further relates to foamed mouldings and to use of the foamable composition for floor coverings, wall coverings or artificial leather.

Gelatinous Triblock Copolymer Elastomer Particles in Polyurethane Flexible Foams

Combinations of gelatinous elastomer and polyurethane foam may be made by introducing a plasticized triblock copolymer resin and/or a diblock copolymer resin at least partially cured into gel particles into a mixture of polyurethane foam forming components including a polyol and an isocyanate. The plasticized copolymer resin is polymerized to form a cured gelatinous elastomer or gel, which is then reduced in size, for instance to give an average particle size of 10 millimeters or less. Polymerizing the polyol and the isocyanate forms polyurethane foam. The polyurethane reaction is exothermic and can generate sufficient temperature to at least partially melt the styrene-portion of the triblock copolymer resin thereby extending the crosslinking and in some cases integrating the triblock copolymer within the polyurethane polymer matrix. The gel component has higher heat capacity than polyurethane foam and thus has good thermal conductivity and acts as a heat sink. 2. The combination of wherein the copolymer resin is at least partially melted by heat produced by polymerizing the polyol and the isocyanate to form the open cell flexible polyurethane foam.3. The combination of where the copolymer resin is a triblock copolymer resin and the copolymer resin is added in the range of about 0.1 to about 200 parts per hundred of the polyol component of open cell flexible polyurethane foam.4. The combination of where the copolymer resin is formed by compounding a copolymer with at least one plasticizing oil and optionally a component selected from the group consisting of colorants; solvents; elastomeric diblock copolymer; antioxidants; antistatic agents; antimicrobial agents; flame retardants; ultraviolet stabilizers; phase change materials; surface tension modifiers; emulsifying agents; surfactants; fragrances; active hydrogen-containing components selected from the group consisting of primary amines claim 1 , secondary amines claim 1 , primary hydroxyls claim 1 , secondary ...

Perfluorinated sulfonic acid polymer membrane having porous surface layer and method for preparing the same

Provided are a perfluorinated sulfonic acid polymer membrane having a porous surface layer, which includes a surface layer and a bottom layer present at the bottom of the surface layer, wherein the surface layer is a porous layer, and the bottom layer is non-porous dense layer, and a method for preparing the same through a solvent evaporation process.

PRODUCING RIGID POLYURETHANE FOAMS

The invention relates to a process for producing rigid polyurethane foams by reaction of 1. A process for producing rigid polyurethane foams by reaction ofA) one or more organic polyisocyanates,B) one or more polyester polyols,C) optionally one or more polyether polyols,D) a flame-retardant mixture,E) further auxiliaries or addition agents,F) one or more blowing agents, and alsoG) catalysts,wherein said flame-retardant mixture D) comprisesd1) 10 to 90 wt %, based on the amount of flame-retardant mixture, of a flame retardant having a boiling point of not more than 220° C., andd2) 10 to 90 wt %, based on the amount of flame-retardant mixture, of a phosphorus-containing flame retardant having a boiling point of above 220° C.,wherein said components d1) and d2) total 100 wt %.2. The process according to wherein said flame retardant d1) having a boiling point of not more than 220° C. is selected from the group consisting of diethyl ethylphosphonate (DEEP) claim 1 , triethyl phosphate (TEP) claim 1 , dimethyl propylphosphonate (DMPP) and mixtures thereof.3. The process according to wherein said flame retardant d2) having a boiling point of above 220° C. is selected from the group consisting of tris(2-chloropropyl) phosphate (TCPP) claim 1 , diphenyl cresyl phosphate (DPC) claim 1 , triphenyl phosphate (TPP) and mixtures thereof.4. The process according to wherein said polyester polyol B) comprises at least one polyetherester polyol comprising the esterification product of b11) 50 to 100 mol %, based on the dicarboxylic acid composition, of one or more aromatic dicarboxylic acids or derivatives thereof,', 'b12) 0 to 50 mol %, based on said dicarboxylic acid composition b1), of one or more aliphatic dicarboxylic acids or derivatives thereof,, 'b1) 10 to 70 mol % of a dicarboxylic acid composition comprising'}b2) 2 to 30 mol % of one or more fatty acids or fatty acid derivatives,b3) 10 to 70 mol % of one or more aliphatic or cycloaliphatic diols having 2 to 18 carbon atoms ...

POROUS POLYBENZIMIDAZOLE RESIN AND METHOD OF MAKING SAME

A porous polybenzimidazole (PBI) particulate resin is disclosed. This resin is easily dissolved at ambient temperatures and pressures. The resin is made by: dissolving a virgin PBI resin in a highly polar solvent; precipitating the dissolved PBI in a bath; and drying the precipitated PBI, the dried precipitated PBI being porous. The porous PBI resin may be dissolved by: mixing a porous PBI resin with a highly polar solvent at ambient temperatures and pressures to form a solution. 1. A method for making a porous polybenzimidazole resin comprising the steps of:dissolving a virgin PBI resin in a highly polar solvent;precipitating the dissolved PBI in a bath; anddrying the precipitated PBI resin, the dried precipitated PBI resin being porous.2. The method of wherein virgin polybenzimidazole resin refers to sieved resin from the reactor.3. The method of wherein the highly polar solvent being selected from the group consisting of N—N-dimethyl acetamide (DMAc) claim 1 , dimethylsulfoxide (DMSO) claim 1 , N—N-dimethylformamide (DMF) claim 1 , N-methyl-2-pyrrolidine (NMP) claim 1 , pyridine claim 1 , and combinations thereof.4. The method of wherein said bath comprising non-solvent for PBI resin.5. The method of wherein the non-solvent for the PBI resin includes water claim 4 , methanol claim 4 , and combinations thereof.6. The method of wherein precipitating being conducted at a temperature in the range of 50-90° C.7. The method of wherein precipitating being conducted at a temperature in the range of 60-80° C.8. The method of wherein the bath being agitated.9. The method of further comprising filtering the solution prior to precipitating.10. The method of wherein filtering further comprises filtering through a filter having a mesh size of 25 microns or less.11. The method of further comprising separating the precipitated polybenzimidazole resin from the bath. The instant application claims the benefit of co-pending Provisional Application Ser. No. 61/301,261 filed Feb. 4, ...

Polyolefin-Based Porous Film and Method for Producing the Same

A method for producing a polyolefin-based porous film includes an (A) step: a raw fabric forming step for forming a non-porous raw fabric from a polyolefin-based resin composition, a (B) step: an MD cold stretching step for cold stretching the non-porous raw fabric obtained in the (A) step at a temperature of −20° C. to (Tm−30)° C. (Tm is a melting point (° C.) of the non-porous raw fabric) in an extruding direction (MD) of the raw fabric to make the raw fabric porous; a (D) step: a TD cold stretching step for cold stretching a film processed in the (B) step in a direction (TD) perpendicular to the MD, and an (H) step: a thermal fixing step, in the above order.

LOW RESILIENCE FLEXIBLE POLYURETHANE FOAM AND PROCESS FOR ITS PRODUCTION

To provide a process for producing a flexible polyurethane foam which is excellent in low resiliency without using a plasticizer which is excellent in durability, and at the same time, which has high air permeability. 2. The process for producing a flexible polyurethane foam according to claim 1 , wherein the foam stabilizer (X) is contained in an amount of from 0.1 to 8.0 parts by mass per 100 parts by mass of the above polyol mixture.3. The process for producing a flexible polyurethane foam according to claim 1 , wherein the dimethylpolysiloxane represented by the formula (I) is contained in an amount of from 0.7 to 95.0 mass % in 100 mass % of the foam stabilizer (X).4. The process for producing a flexible polyurethane foam according to claim 1 , wherein the polyol (A) is contained in an amount of from 10 to 30 mass % claim 1 , the polyol (B) is contained in an amount of from 50 to 80 mass % claim 1 , and the monool (D) is contained in an amount of from 2 to 24 mass % claim 1 , in the polyol mixture.5. The process for producing a flexible polyurethane foam according to claim 1 , wherein the polyol (A) is a polyoxypropylene polyol obtained by ring-opening addition polymerization of only propylene oxide to an initiator.6. The process for producing a flexible polyurethane foam according to claim 1 , wherein the blowing agent is water.7. The process for producing a flexible polyurethane foam according to claim 1 , wherein the monool (D) is a polyoxypropylene monool obtained by ring-opening addition polymerization of only propylene oxide to an initiator.8. The process for producing a flexible polyurethane foam according to claim 1 , wherein the polyisocyanate compound is at least one member selected from the group consisting of tolylene diisocyanate (TDI) claim 1 , diphenylmethane diisocyanate (MDI) claim 1 , polymethylenepolyphenyl polyisocyanate claim 1 , xylylene diisocyanate (XDI) claim 1 , isophorone diisocyanate (IPDI) claim 1 , hexamethylene diisocyanate (HMDI) ...

Expandable vinyl aromatic polymers

The present invention is an expandable vinyl aromatic polymer which comprises: a) a matrix of a vinyl aromatic polymer, b) 1-10% by weight calculated with respect to the polymer (a), of an expanding agent englobed in the polymeric matrix, c) 0.1 to 5% by weight calculated with respect to the polymer (a), of talc having a mean diameter above about 8 μm, said mean diameter being measured by Laser Mastersizer according to standard ISO 13320-1, the BET of the talc being is in the range 0.5-25 m2/g, d) carbon black in a proportion sufficient for the foamed material obtained from the expandable vinyl aromatic polymer to have a thermal conductivity λ of about 34 mW/m° K or lower, e) 0-20% by weight, calculated with respect to the polymer (a), of one or more fillers, other than talc and carbon black, homogeneously distributed in the polymeric matrix. The expandable vinyl aromatic polymer of the invention is produced in the form of beads or granules. The thermal conductivity λ of about 34 mW/m° K means that it could be in the range 33.5 to 34.5 mW/m° K. Advantageously the thermal conductivity λ is between about 33 and 34 mW/m° K, more advantageously between about 32 and 33 mW/m° K, preferably between about 31 and 32 mW/m° K and more preferably between about 30 and 31 mW/m° K.

Porous material for ink stamps, production method therefor, and self-inking stamp

A porous stamp material allows only resin in a region thereof irradiated with a laser beam during laser engraving in a production process of an ink stamp to be burnt and vaporized while preventing melting in any other unwanted region. The porous material for ink stamps comprises: at least one thermoplastic resin selected from the group consisting of low-density polyethylene, linear low-density polyethylene, high-density polyethylene, ethylene-alpha-olefin copolymer, ethylene-vinyl acetate copolymer, and ethylene-acrylic copolymer; at least one thermoplastic elastomer selected from a plurality of different hydrogenated styrene based thermoplastic elastomers; and at least one filler selected from a plurality of different inorganic compounds, wherein the thermoplastic resin and/or the thermoplastic elastomer are cross-linked, and formed in a continuous pore structure. 1. A porous material for ink stamps , comprising:at least one thermoplastic resin selected from the group consisting of low-density polyethylene, linear low-density polyethylene, high-density polyethylene, ethylene-alpha-olefin copolymer, ethylene-vinyl acetate copolymer, and ethylene-acrylic copolymer;at least one thermoplastic elastomer selected from a plurality of different hydrogenated styrene based thermoplastic elastomers; andat least one filler selected from a plurality of different inorganic compounds,wherein the thermoplastic resin and/or the thermoplastic elastomer are cross-linked, and formed in a continuous pore structure.2. The porous material as defined in claim 1 , wherein the at least one thermoplastic resin is contained at a mixing ratio of 2 to 30 with respect to the at least one thermoplastic elastomer.3. The porous material as defined in claim 1 , wherein the at least one thermoplastic resin has a glass-transition temperature of 0° C. or less.4. The porous material as defined in claim 1 , wherein the at least one filler is selected from a plurality of different silicates.5. The porous ...

COMPOSITION FOR SILICONE RUBBER FOAM, MANUFACTURING METHOD OF SILICONE RUBBER FOAM, AND SILICONE RUBBER FOAM

There are provided a composition for silicone rubber foam, a manufacturing method of a silicone rubber foam, and a silicone rubber foam in which it is possible to control the foaming states. The composition for silicone rubber foam contains: (A) 100 parts by mass of polyorganosiloxane having a degree of polymerization of 4,000 to 10,000 and having two or more alkenyl groups at a content of 0.001 mmol/g or more and less than 0.3 mmol/g; an amount of polyorganohydrogensiloxane having an average of two or more Si-atom-bonded hydrogen atoms so that a molar ratio of the hydrogen atoms to the alkenyl groups in the (A) component is 0.001 to 5; 0.1 to 10 parts by mass of an organic foaming agent with a decomposition temperature of 50 to 250° C.; 5 to 200 parts by mass of silica powder; and a catalyst amount of a platinum-based metal catalyst activated with ultraviolet rays. 2. The composition for silicone rubber foam according to claim 1 , further comprising(F) 0.001 to 10 parts by mass, per 100 parts by mass of the (A) component, of organic peroxide with a decomposition temperature equal to or higher than the decomposition temperature of the (C) component.3. The composition for silicone rubber foam according to claim 1 ,wherein 0.1 to 1000 ppm of (methylcyclopentadienyl)trimethylplatinum in terms of platinum metal atoms with respect to the total amount of the (A) component and the (B) component is contained as the (E) platinum-based metal compound catalyst.4. The composition for silicone rubber foam according to claim 2 ,wherein 0.1 to 1000 ppm of (methylcyclopentadienyl)trimethylplatinum in terms of platinum metal atoms with respect to the total amount of the (A) component and the (B) component is contained as the (E) platinum-based metal compound catalyst.5. A manufacturing method of a silicone rubber foam claim 2 , comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'a step (1) of irradiating the composition for silicone rubber foam according to with ...

SILICONE COMPOSITION FOR ELASTOMER FOAM

The present relates to novel organopolysiloxane compositions intended to generate an elastomer foam (or silicone foam) with good mechanical properties and low density low density, i.e. less than 0.35 g/cm3 and preferably less than 0.25 g/cm3. 1. An organopolysiloxane composition X which is a precursor of a silicone foam , comprising:{'sub': 2', '6, 'at least one polyorganosiloxane A having a viscosity of from 10 to 300 000 mPa·s and exhibiting, per molecule, at least two C-Calkenyl groups bonded to silicon,'}at least one polyorganosiloxane B having a viscosity of from 1 to 5000 mPa·s and exhibiting, per molecule, at least two ≡SiH units and optionally at least three ≡SiH units,a catalytically effective amount of at least one catalyst C which is a compound derived from at least one metal belonging to the platinum group,at least one porogenic agent D,optionally at least one diorganopolysiloxane oil E blocked at each end of a diorganopolysiloxane chain thereof, by a triorganosiloxy unit, the organic radicals of which bonded to the silicon atoms are selected from alkyl radicals having from 1 to 8 carbon atoms inclusive, optionally comprising methyl, ethyl, propyl and 3,3,3-trifluoropropyl groups, cycloalkyl groups, optionally comprising cyclohexyl, cycloheptyl and cyclooctyl groups, and aryl groups, optionally comprising xylyl, tolyl and phenyl,{'sup': 2', '2, 'at least one inorganic filler F which is a fumed silica, having a specific surface area S of less than 65 m/g, optionally less than 50 m/g,'}optionally at least one additive G, andoptionally at least one polyorganosiloxane resin H,with the proviso that, the nature and the amount of constituents are determined such that viscosity of said organopolysiloxane composition X is less than 55 000 mPa·s, optionally less than 30 000 mPa·s and said viscosities are dynamic viscosities measured at 25° C. using a Brookfield viscometer according to the instructions of the AFNOR NFT 76-102 standard.2. The organopolysiloxane ...

CARPET STRUCTURE WITH PLASTOMERIC FOAM BACKING

The present invention pertains to foam cushion backings. More particularly, the present invention pertains to foam cushion backings suitable for use in carpets and carpet tile products. The present invention further pertains to foam cushion-backed carpet and carpet tile products. The present invention further pertains to methods of making such foam cushion backings and carpet and carpet tiles as described herein. 1. A foam cushion backing comprising: 'i) one or more of a homogenously branched ethylene polymer (HBEP) or a substantially linear ethylene polymer (SLEP),', 'a) a foamable polymer composition comprisingwherein a foam cushion backing is prepared from the foamable polymer composition,{'sup': '3', 'wherein the foam cushion backing is substantially uncrosslinked, has a thickness of greater than 0.075 inches, has a uniform density in the range of from 10 to 30 lbs/ft, and'}wherein the foam cushion backing is suitable for use in carpet or carpet tiles.2. (canceled)3. The foam cushion backing of claim 1 , comprising the SLEP.4. The foam cushion backing of having a thickness of from about 0.100 to about 0.225 inches.5. The foam cushion backing of claim 1 , wherein the foamable polymer composition further comprises ii) an adhesive polymer component comprising an adhesive material claim 1 , and wherein the adhesive material comprises a functionalized polymer or copolymer.6. The foam cushion backing of claim 5 , wherein the foamable polymer composition comprises from about greater than 0 to about 10% of the functionalized polymer or copolymer claim 5 , as measured by total weight of the foamable polymer composition.7. The foam cushion backing of claim 5 , wherein the functionalized polymer or copolymer material comprises maleic anhydride grafted to an ethylene polymer.8. The foam cushion backing of claim 1 , wherein the foamable polymer composition further comprises iii) a filler component.9. (canceled)10. (canceled)11. (canceled)12. (canceled)13. (canceled)14. ( ...

FOAMING COMPOSITION FOR FILLING AND SEALING, FOAMING MEMBER FOR FILLING AND SEALING, AND FOAM FOR FILLING AND SEALING

A foaming composition for filling and sealing contains a vinyl copolymer having an ester bond in a side chain thereof, an organic peroxide, a foaming agent, a hydrophobic resin, and a hydrophilic resin. A content ratio of the hydrophobic resin is in a range of 5 to 25 parts by mass based on 100 parts by mass of the vinyl copolymer. A content ratio of the hydrophilic resin is in a range of 1 to 20 parts by mass based on 100 parts by mass of the vinyl copolymer. 1. A foaming composition for filling and sealing , containing:a vinyl copolymer having an ester bond in a side chain thereof;an organic peroxide;a foaming agent;a hydrophobic resin; anda hydrophilic resin, whereina content ratio of the hydrophobic resin is in a range of 5 to 25 parts by mass based on 100 parts by mass of the vinyl copolymer, anda content ratio of the hydrophilic resin is in a range of 1 to 20 parts by mass based on 100 parts by mass of the vinyl copolymer.2. A foaming composition for filling and sealing according to claim 1 , wherein the vinyl copolymer is an ethylene-vinyl acetate copolymer.3. A foaming composition for filling and sealing according to claim 1 , wherein the hydrophobic resin is at least one synthetic rubber selected from the group consisting of a styrene-butadiene rubber claim 1 , an acrylonitrile-butadiene rubber claim 1 , and a butyl rubber.4. A foaming composition for filling and sealing according to claim 1 , wherein the hydrophilic resin is an epoxy resin and/or a polyamide resin.5. A foaming composition for filling and sealing according to claim 1 , wherein the foaming agent is azodicarbonamide.6. A foaming member for filling and sealing claim 1 , comprising:a foaming composition for filling and sealing; anda fitting member attached to the foaming composition for filling and sealing to be capable of being mounted in an inner space of a hollow member, whereinthe foaming composition for filling and sealing contains a vinyl copolymer having an ester bond in a side chain ...

PROCESS FOR PRODUCING POLYETHER POLYOL, PROCESS FOR PRODUCING FLEXIBLE POLYURETHANE FOAM, AND SHEET

To suppress deterioration of mechanical properties of a foam, by using a polyol system solution stored. 1. A process for producing a polyether polyol , which is a process for producing a polyether polyol (A1) to be used for producing a flexible polyurethane foam , said process comprises:a step of subjecting an alkylene oxide to ring-opening addition polymerization to an initiator having an average number of hydroxy groups of from 2 to 8, in the presence of a double metal cyanide complex catalyst, to obtain an intermediate polyol; anda step of subjecting ethylene oxide to ring-opening addition polymerization in an amount of from 1 to 23 mol per 1 mol of the initiator to the intermediate polyol, in the presence of an alkali metal hydroxide as a polymerization catalyst, to obtain a polyoxyalkylene polyol (A1) having a hydroxy value of from 5 to 45 mgKOH/g.2. The process for producing a polyether polyol according to claim 1 , wherein the intermediate polyol is a polyol obtained by the following initial activation step (a) and the following additional polymerization step (b):initial activation step (a): a step of supplying and reacting to a reaction fluid containing the above initiator and the above double metal cyanide complex catalyst, a part of the above alkylene oxide so as to be in an amount of from 5 to 20 parts by mass per 100 parts by mass of the initiator contained in the above reaction fluid, wherein the initial temperature of the reaction fluid immediately before supplying the above alkylene oxide is from 120 to 165° C., and the maximum temperature of the above reaction fluid in the initial activation step (a) is higher by from 15 to 50° C. than the above initial temperature, andadditional polymerization step (b): a step of additionally supplying the alkylene oxide after the above initial activation step (a), and carrying out ring-opening addition polymerization in the presence of the double metal cyanide complex catalyst.3. The process for producing a ...

HEAT INSULATING MATERIAL

A method of manufacturing a resin foam includes dissolving a blowing agent into a mixture of a resin C and a resin D having a difference of solubility with respect to the blowing agent in an amount of more than 0% and less than 5%; subjecting the mixture to heat-melting for extrusion; and evaporating the blowing agent such that the resin foam has a porosity (X) of not less than 80%, a cell (L) with a cell diameter of not less than 1 μm and not more than 1000 μm, and a cell (S) with a cell diameter of not less than 0.01 μm and less than 1 μm, in which two peaks are present in cell diameter distribution, one peak thereof being present in not less than 10 μm and not more than 500 μm and the other peak being present in not less than 0.01 μm and less than 1 μm. 1. A method of manufacturing a resin foam comprising:dissolving a blowing agent into a mixture of a resin C and a resin D having a difference of solubility with respect to the blowing agent in an amount of more than 0% and less than 5%;subjecting the mixture to heat-melting for extrusion; andevaporating the blowing agent such that the resin foam has a porosity (X) of not less than 80%, a cell (L) with a cell diameter of not less than 1 μm and not more than 1000 μm, and a cell (S) with a cell diameter of not less than 0.01 μm and less than 1 μM, in which two peaks are present in cell diameter distribution, one peak thereof being present in not less than 10 μm and not more than 500 μm and the other peak being present in not less than 0.01 μm and less than 1 μm.2. The method according to claim 1 , wherein evaporating the blowing agent occurs only once.3. The method according to claim 1 , wherein a number density of the cell (L) is not less than 10/mmand not more than 10/mm claim 1 , and a number density of the cell (S) is not less than 10/μmand not more than 10μm.4. The method according to claim 2 , wherein a number density of the cell (L) is not less than 10/mmand not more than 10/mm claim 2 , and a number density ...

METHODS FOR MAKING FOAMS USING BLOWING AGENTS COMPRISING UNSATURATED FLUOROCARBONS

Disclosed herein are blowing agents comprising fluorocarbons and/or hydrofluorocarbons useful in foamable compositions. Also disclosed are methods for forming a foam comprising the aforementioned blowing agents. 1. A method of forming a foam comprising: [{'sup': 1', '2', '1', '2, 'sub': 1', '6, '(i) a hydrofluorocarbon having the formula E- or Z—RCH═CHR, wherein Rand Rare, independently, Cto Cperfluoroalkyl groups; and'}, {'sub': 3', '3', '2', '2', '2', '2', '3', '2', '3', '2', '2', '2', '2', '2', '2', '2', '3', '2', '3', '2', '2', '2', '2', '2', '3', '3', '3', '2', '2', '3', '3', '3', '2', '2', '3', '3', '3', '2', '2', '2', '2', '3', '2', '3', '2', '2', '2', '2', '3', '3', '2', '3', '3', '2', '3', '3', '2', '3', '3', '2', '2', '3', '2', '2', '2', '3', '2', '3', '2', '3', '2', '2', '3', '3', '2', '3', '2', '3', '2', '3', '2', '2', '2', '2', '2', '2', '3', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '3', '3', '2', '2', '3', '2', '2', '2', '2', '2', '3', '3', '3', '2', '2', '2', '3', '3', '3', '3', '2', '2', '2', '3', '2', '2', '3', '2', '2', '2', '3', '2', '2', '2', '2', '2', '2', '3', '3', '2', '2', '3', '3', '3', '2', '2', '3', '2', '3', '3', '2', '2', '3', '2', '2', '2', '2', '3', '2', '2', '2', '2', '3', '2', '3', '2', '3', '2', '3', '2', '2', '3', '2', '3', '2', '2', '2', '2', '2', '2', '2', '3', '3', '3', '3', '2', '3', '2', '3', '2', '2', '3', '2', '3', '3', '2', '2', '2', '3', '2', '3', '2', '3', '3', '2', '2', '5', '3', '2', '3', '2', '3', '3', '3', '2', '3', '3', '2', '2', '3', '2', '3', '3', '2', '3', '3', '3', '2', '2', '2', '2', '2', '2', '3', '2', '2', '3', '2', '3', '2', '2', '5', '2', '2', '2', '2', '5', '2', '2', '2', '2', '5', '3', '2', '2', '5', '2', '2', '3', '2', '3', '3', '3', '3', '2', '2', '2', '2', '2', '2', '2', '3', '2', '2', '3', '2', '3', '2', '2', '3', '2', '2', '2', '2', '2', '2', '2', '2', '2', '3', '2', '2', '2', '2', '3', '2', '3', '2', '2', '2', '3', '3', '2', '2', '3', '3', '2', '5', '3', '2', '2', '2', '5', '3', '2', '2', '2 ...

COMPOSITION FOR HEAT-INSULATING MATERIAL AND HEAT-INSULATING MATERIAL

Provided is a composition for a lightweight heat-insulating material having high heat-insulating properties. The composition for a heat-insulating material contains a fibrous material, inorganic foamed particles, a thermosetting resin, and a foaming agent. Since the composition for a heat-insulating material contains the inorganic foamed particles and the foaming agent in addition to the fibrous material and the thermosetting resin, the weight can be reduced and the thermal conductivity can be lowered due to the inorganic foamed particles having low specific gravity. Further, the thermosetting resin is caused to foam by the foaming agent, and the weight can be reduced and the thermal conductivity can be lowered. A lightweight heat-insulating material having high-insulating properties can be obtained. 1. A composition for a heat-insulating material for obtaining a heat-insulating material which consumes thermal energy at high temperate by an action selected from breakdown , burning , sublimation , and carbonization , the composition containing a fibrous material , inorganic expanded particles , a thermosetting resin , and an expanding agent.2. The composition for a heat-insulating material according to claim 1 , wherein the composition contains a polyvinyl alcohol-based material selected from a polyvinyl alcohol and a polyvinyl acetal resin.3. The composition for a heat-insulating material according to claim 1 , wherein the composition contains cork particles.4. The composition for a heat-insulating material according to claim 1 , wherein a material selected: inorganic fibers including alumina fibers claim 1 , glass fibers claim 1 , silica fibers claim 1 , alumina-silica composite oxide fibers claim 1 , silicon carbide fibers claim 1 , boron fibers claim 1 , and carbon fibers; and organic fibers including aramid fibers claim 1 , poly para-phenylene benzobisoxazole fibers claim 1 , acrylic fibers claim 1 , acetate fibers claim 1 , nylon fibers claim 1 , and vinylidene ...

Photodegradable Polycaprolactone Fumarate Block Copolymers

A polycaprolactone fumarate copolymer useful as a material for a biocompatible scaffold for tissue engineering applications is disclosed. The copolymer includes at least one caprolactone unit, at least one fumarate unit, and at least one third unit selected from the group consisting of acrylate units and styrenic units. A linking moiety forms a link between the third unit and at least one caprolactone unit or at least one fumarate unit. The linking moiety can be photodegradable. In one form, the third unit includes at least one methyl methacrylate unit. The copolymer can be used to form the wall of a nerve conduit.

URETHANE FOAM MOLDED PRODUCT AND METHOD FOR PRODUCING THE SAME

To provide a urethane foam molded product having high thermal conductivity and electric insulation and a method for producing the same. A urethane foam molded product includes a base material made of a polyurethane foam and composite particles that are blended in the base material and oriented in a mutually connected state, in which each of the composite particles includes a thermally conductive particle made of a non-magnetic body, and a magnetic particle and an insulating inorganic particle that are adhered to the surface of the thermally conductive particle through a binder. A powder of the composite particles can be produced by stirring a powder raw material containing a powder of the thermally conductive particle, a powder of the magnetic particle, a powder of the insulating inorganic particle, and the binder using a stirring granulator. 1. A urethane foam molded product , characterized by comprising:a base material made of a polyurethane foam; andcomposite particles that are blended in the base material and oriented in a mutually connected state, whereineach of the composite particles includes a thermally conductive particle made of a non-magnetic body, and a magnetic particle and an insulating inorganic particle that are adhered to a surface of the thermally conductive particle through a binder.2. The urethane foam molded product according to claim 1 , wherein the insulating inorganic particle is located in outermost layers of the composite particles.3. The urethane foam molded product according to claim 1 , wherein the insulating inorganic particle has a thermal conductivity of 5 W/m·K or more.4. The urethane foam molded product according to claim 3 , wherein the insulating inorganic particle is one or more selected from aluminum hydroxide claim 3 , aluminum oxide claim 3 , magnesium hydroxide claim 3 , magnesium oxide claim 3 , and talc.5. The urethane foam molded product according to claim 1 , wherein the insulating inorganic particle has a particle ...

RUBBER COMPOSITION, VULCANIZED RUBBER AND TIRE MANUFACTURED USING THE SAME

The present invention provides a rubber composition that may improve fracture resistance of the resulting tire while maintaining good drainage performance, and a tire using the same. The rubber composition includes: a rubber component; and a fiber made of a hydrophilic resin. The fiber is formed with a coating layer on its surface. The coating layer is made of a resin having affinity for the rubber component. 1. A rubber composition comprising: a rubber component; and a fiber made of a hydrophilic resin , wherein the fiber is formed with a coating layer on its surface , the coating layer being made of a resin having affinity for the rubber component.2. A rubber composition comprising: a rubber component; and a hydrophilic resin , whereinthe rubber composition includes a complex, the complex being formed by coating at least a portion of the hydrophilic resin with a resin having affinity for the rubber component so that a cavity is formed in the complex.3. The rubber composition according to further comprising a foaming agent claim 2 , whereinthe rubber composition containing the foaming agent is foamed by kneading and vulcanizing, andthe resin having affinity for the rubber component is a low melting point resin having a melting point lower than a highest vulcanizing temperature.4. The rubber composition according to claim 2 , wherein the entire circumference of the hydrophilic resin is coated with the resin having affinity for the rubber component.5. The rubber composition according to claim 2 , wherein the complex is made of a fiber having a core-sheath structure claim 2 , the core-sheath structure including a core portion made of the hydrophilic resin and a sheath portion made of the resin having affinity for the rubber component.6. The rubber composition according to claim 1 , wherein the hydrophilic resin contains an oxygen claim 1 , nitrogen or sulfur atom.7. The rubber composition according to claim 1 , wherein the hydrophilic resin contains at least one ...

Enhanced Thermally Conductive Cushioning Foams by Addition of Metal Materials

Methods and combinations for making and using one or more thermally conductive cellular foam layers comprising flexible cellular foam and metallic material particulates, and said thermally-conductive cellular foam layers may be located on, under, or in cushioning foams and mattresses or placed between on, under, within, or between other layering substrates to increase the overall cooling capability of the composite. The thermally conductive foam may be used in mattresses, pillows, bedding products, medical cushioning foams, and similar materials used in bedding environments.

PRODUCING POLYMER FOAMS COMPRISING IMIDE GROUPS

A process for producing a polymer foam comprises reacting components A to C in the presence of component D and optionally E or an isocyanate-functional prepolymer of components A and B with component C in the presence of component D and optionally component E, the total amount of which is 100 wt %, 1. A process for producing a polymer foam comprising reacting components A to C in the presence of component D and optionally E or an isocyanate-functional prepolymer of components A and B with component C in the presence of component D and optionally component E , the total amount of which is 100 wt % ,(A) 35 to 65 wt % of at least one polyisocyanate component A, wherein 10 to 100 wt % of component A is a condensation product comprising polyimide groups and resulting from condensing at least one polyisocyanate component with at least one polycarboxylic acid having at least 3 COOH groups per molecule or its anhydride,(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,(E) 0 to 5 wt % of at least one foam stabilizer component E,wherein the reaction takes place with release of carbon dioxide.2. The process according to wherein said polyol component B has an average molecular weight in the range from 200 g/mol to 6000 g/mol.3. The process according to wherein the polymer foam is a rigid polymer foam.4. The process according to wherein said component B has an OH number in the range from 10 mg KOH/g to 1000 mg KOH/g.5. The process according to wherein the polymer foam has a foam density in the range from 8 g/l to 200 g/l.6. The process according to wherein said Lewis base component D is selected from N-methylimidazole claim 1 , melamine claim 1 , guanidine claim 1 , cyanuric acid claim 1 , dicyandiamide and their derivatives or mixtures thereof claim 1 , especially N-methylimidazole.7. The process according to wherein the reaction takes place in the ...