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 ...

СОПОЛИМЕРЫ МЕТАКРИЛАТА И ИХ ИСПОЛЬЗОВАНИЕ ДЛЯ ПОЛУЧЕНИЯ ПЕНОПОЛИУРЕТАНА

Настоящее изобретение относится к пенополиуретану, содержащему сополимеры на основе метакрилата, к способу его изготовления и к использованию его в качестве изоляционного материала резервуаров, предназначенных для транспортировки сжиженного газа, и, в частности, резервуаров танкеров-газовозов для перевозки сжиженного газа. Указанный пенополиуретан содержит сополимер фторированного метакрилата (а) формулы , метакрилата (b), содержащего по меньшей мере одну оксиалкиленовую группу, формулы и алкилметакрилата (с) формулы . Полученный пенополиуретан обладает как хорошими теплоизоляционными свойствами, так и улучшенными механическими свойствами. 5 н. и 11 з.п. ф-лы, 5 ил., 3 табл., 3 пр.

СПОСОБ ПОЛУЧЕНИЯ ПОЛИУРЕТАНОВОЙ ПЕНЫ С ПОМОЩЬЮ ПОРООБРАЗОВАТЕЛЯ, НАХОДЯЩЕГОСЯ В СВЕРХКРИТИЧЕСКОМ ИЛИ ОКОЛОКРИТИЧЕСКОМ СОСТОЯНИИ

Изобретение касается способа изготовления полиуретановой пены, причем используемый порообразователь находится в сверхкритическом состоянии. Описан способ изготовления полиуретановой пены, включающий в себя следующие стадии: - подготовка смеси, включающей в себя: A) компонент, способный реагировать с изоцианатами; B) детергентный компонент (ПАВ); C) компонент - порообразователь, выбранный из группы, которая включает в себя линейные, разветвленные или циклические алканы с 1-6 атомами углерода, линейные, разветвленные или циклические фторалканы с 1-6 атомами углерода, N, O, аргон и/или CO, причем компонент - порообразователь С) находится в сверхкритическом или околокритическом состоянии; D) полиизоцианатный компонент; - введение смеси, включающей в себя компоненты А), В), С) и D) в закрытую форму, причем закрытая форма устроена так, что ее внутренний объем и/или давление внутри нее можно путем внешнего воздействия изменить после введения смеси; - пребывание смеси, включающей в себя компоненты ...

БЫСТРОРЕАГИРУЮЩАЯ КОМПОЗИЦИЯ ДЛЯ ПРИГОТОВЛЕНИЯ ТВЕРДОЙ ПОЛИУРЕТАНОВОЙ ПЕНЫ НИЗКОЙ ПЛОТНОСТИ

Изобретение относится к быстрореагирующей композиции, используемой для получения жесткого пенополиуретана низкой плотности. Описана быстрореагирующая композиция, используемая для получения жесткого пенополиуретана низкой плотности, она получена путем смешивания следующих компонентов в соответствующей пропорции по массе: высокоактивный сложный материал:пенообразователь:изоцианат - 100:(8~28):(105~155); причем высокоактивный сложный материал получен путем смешивания следующих компонентов в соответствующей пропорции по массе: смешанный полиол:стабилизатор пены:катализатор:вода:дополнительный ингредиент - 100:(0,5~3,5):(1,0~10):(0,5~3,0):(0~5); причем пенообразователь относится к смеси циклопентана и HFC-365 mfc, или смеси циклопентана и HFC-245 fa, или смеси циклопентана, HFC-365 mfc и HFC-245 fa; причем смешанный полиол состоит из сложного полиэфирполиола с гидроксильным числом 100-450 мг КОН/г, полиола Манниха с гидроксильным числом 160-750 мг КОН/г и простого полиэфирполиола, где сложный ...

ПОЛИУРЕТАНОВЫЙ ОГНЕЗАЩИТНЫЙ СОСТАВ

Изобретение относится к составу, подходящему для получения полиуретана. Состав, пригодный для получения полиуретана, содержит: (a) по меньшей мере, одну смесь для формирования полиуретана, (b) по меньшей мере, один фосфатный компонент, выбранный из группы, состоящей из полифосфата аммония (APP) и меламинфосфатов и их смесей, и (c) по меньшей мере, один тип частиц оксида металла с максимальным размером частиц менее 300 мкм, где металл выбирают из группы, состоящей из Mg и Al, и где указанный, по меньшей мере, один фосфатный компонент присутствует в количестве от 20 до 45 вес. % из расчета 100 вес. % состава. Заявлен также полиуретановый продукт. Технический результат - улучшение огнестойкости полиуретановых продуктов. 2 н. и 12 з.п. ф-лы, 2 табл., 2 ил., 3 пр.

СПОСОБ ПОЛУЧЕНИЯ ПОЛИЭФИРПОЛИОЛОВ

Изобретение относится к способу получения полиэфирполиолов. Способ осуществляют путем превращения а) ароматических аминов с b) алкиленоксидами в присутствии с) катализатора. Алкиленоксид b) содержит по меньшей мере 90 масс. % пропиленоксида в пересчете на массу компонента b) и в качестве катализатора с) используют амин. Описаны также полиэфирполиолы, полученные указанным способом и их применение для получения полиуретанов. Технический результат - получение полиэфирполиолов, обладающих низкой вязкостью и незначительным содержанием непревращенных ароматических аминов, используемых в качестве стартовых соединений. 3 н. и 3 з.п. ф-лы, 7 пр.

ВСПЕНЕННЫЕ МАТЕРИАЛЫ ИЗ ПОЛИУРЕТАНА В КАЧЕСТВЕ ОСНОВНОГО МАТЕРИАЛА ДЛЯ ПОЛУЧЕНИЯ ЛОПАСТЕЙ, В ЧАСТНОСТИ, ДЛЯ ВЕТРОСИЛОВЫХ УСТАНОВОК

Настоящее изобретение относится к полиуретановому вспененному материалу повышенной прочности с плотностью от более 50 до 300 г/л, с не зависящей от плотности прочностью на сжатие более 7,5·10МПа (л/г), с не зависящим от плотности модулем упругости при сжатии более 1,7·10МПа (л/г), с не зависящей от плотности прочностью на растяжение более 6,4·10МПа (л/г), с не зависящим от плотности модулем упругости при растяжении более 2,4·10МПа (л/г), с не зависящей от плотности прочностью при изгибе более 1,25·10МПа (л/г)и с не зависящим от плотности модулем упругости при изгибе более 1,75·10МПа (л/г), который получают путем смешивания (а) полиизоцианатов с (б) содержащими реагирующие с изоцианатами группы соединениями, с (в) содержащими воду порообразующими средствами и в случае необходимости с (г) катализатором и (д) другими добавками, это смешивание приводит к получению реакционной смеси и к отверждению реакционной смеси, причем отверждающаяся реакционная смесь содержит от 1 до 40 мас.% полых микрошариков ...

ПРОДУКТ С ТВЕРДОЙ ПОВЕРХНОСТЬЮ И СПОСОБ ЕГО ПОЛУЧЕНИЯ

Настоящее изобретение относится к термоотверждаемому материалу с твердой поверхностью, а также к способу его получения. Указанный термоотверждаемый материал получен из жидкой композиции, содержащей по меньшей мере один полиол, по меньшей мере один металлосодержащий катализатор, по меньшей мере один изоцианат и расширяемые полимерные микросферы. Диаметр полимерных микросфер увеличивается в 2-5 раз по отношению к нерасширенному состоянию. Полиол представляет собой простой полиэфир, сложный полиэфир, полиол на основе поликарбоната или полиол на основе макрогликоля. Количество полиола составляет от 4 до 20% по массе относительно композиции. Термоотверждаемый материал с твердой поверхностью является жестким, непрозрачным или полупрозрачным и частично расширенным, сохраняя при этом твердые участки. 2 н. и 14 з.п. ф-лы, 4 ил., 5 табл., 5 пр.

СЛОЖНЫЕ ПОЛИЭФИРПОЛИОЛЫ ДЛЯ ПОЛУЧЕНИЯ ЖЕСТКИХ ПЕНОПОЛИУРЕТАНОВ

Настоящее изобретение относится к получению сложных полиэфирполиолов, используемых для получения жестких пенополиуретанов или пенополиизоциануратов. Описан сложный полиэфирполиол, получаемый путем взаимодействия: b1) от 10 до 70% мол. по меньшей мере одного соединения, выбранного из группы, состоящей из терефталевой кислоты, диметилтерефталата, полиэтилентерефталата, фталевого ангидрида, фталевой кислоты и изофталевой кислоты, b2) от 0,8 до 3,2% мол. триглицерида жирной кислоты, b3) от 10 до 70% мол. диола, выбранного из группы, состоящей из этиленгликоля, диэтиленгликоля и полиэтиленгликоля, и b4) от 5 до 50% мол. простого полиэфирполиола с функциональностью более 2 и гидроксильным числом от 150 до 1250 мг КОН/г, полученного путем алкоксилирования этиленоксидом, причем используют по меньшей мере 200 ммолей компонента b4) на килограмм сложного полиэфирполиола, и причем сумма компонентов b1)-b4) составляет 100% мол. Также описан способ получения жестких пенополиуретанов или жестких пенополиизоциануратов ...

КАТАЛИЗАТОР ТРИМЕРИЗАЦИИ ИЗОЦИАНАТА ДЛЯ ИЗГОТОВЛЕНИЯ ПОЛИИЗОЦИАНУРАТ-СОДЕРЖАЩИХ ПЕНОМАТЕРИАЛОВ

Настоящее изобретение относится к способу получения полиизоцианурат-полиуретансодержащего жесткого пеноматериала с высоким содержанием закрытых пор. Указанный способ включает объединение и смешение при изоцианатном индексе по меньшей мере более 100 полиизоцианатной композиции (а), реакционоспособной по отношению к изоцианату композиции (b), каталитической композиции тримеризации (с) и необязательно одной или более добавок (d). Каталитическая композиция тримеризации содержит по меньшей мере одно соединение, выбираемое из органическох алкоксидов формулы(R-O)M, где R представляет собой органическую группу, которую выбирают из гидрокарбильной группы, где гидрокарбильные группы имеют 1-4 атома углерода, x представляет собой число, определяемое степенью окисления M, M выбирают из иона щелочного металла, иона щелочноземельного металла, иона переходного металла, такого как Ti, или иона четвертичного аммония. Указанный способ позволяет получать полиизоцианурат-полиуретансодержащий жесткий пеноматериал ...

ГИБРИДНЫЕ ПРОСТЫЕ ПОЛИЭФИРПОЛИОЛЫ СЛОЖНЫХ ПОЛИЭФИРОВ ДЛЯ УЛУЧШЕННОГО ВСПЕНИВАНИЯ ПРИ ИЗВЛЕЧЕНИИ ИЗ ФОРМЫ В ПОЛИУРЕТАНОВЫХ ЖЕСТКИХ ПЕНОПЛАСТАХ

Настоящее изобретение относится к простым полиэфирполиолам сложного полиэфира, используемых для получения полиуретановых продуктов. Описан способ получения простого полиэфирполиола сложного полиэфира, включающий стадии смешения: 1) фталевого ангидрида со спиртом, имеющим номинальную функциональность 3 и молекулярную массу 90-500 в условиях для образования полуэфира фталевого ангидрида; и 2) алкоксилирования полуэфира, образованного на стадии 1), пропиленоксидом с образованием простого полиэфирполиола сложного полиэфира, имеющего гидроксильное число от 200 до 350, в котором спиртом является содержащий оксипропиленовые звенья простой полиэфирполиол с молекулярной массой 200-500. Также описан простой полиэфирполиол сложного полиэфира, полученный указанным выше способом. Описана полиольная смесь для получения жесткого полиуретанового пенопласта, которая содержит от 10 до 40% мас. указанного выше простого полиэфирполиола сложного полиэфира, и остальное составляет, по меньшей мере, один второй ...

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

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

НАНОДИСПЕРСНЫЕ СИСТЕМЫ НА ОСНОВЕ ГЛИН И ИЗОЦИАНАТОВ И ПОЛИУРЕТАНОВЫЙ НАНОКОМПОЗИТ, ПОЛУЧЕННЫЙ НА ИХ ОСНОВЕ

Изобретение относится к нанодисперсной системе на основе глины для получения полиуретанового нанокомпозита и способу ее получения. Нанодисперсная система содержит предварительно вспученную неорганическую глину, не модифицированную органическим противоионом, и изоцианат, не модифицированный органическим ониевым ионом, причем указанная предварительно вспученная неорганическая глина расщепляется на тонкие пластинки с образованием указанной нанодисперсной системы на основе глины. Нанодисперсную систему на основе глины получают добавлением предварительно вспученной неорганической глины к изоцианату, причем указанная предварительно вспученная неорганическая глина не подвергалась модификации при помощи липофильного противоиона, и расщеплением неорганической глины с образованием нанодисперсной системы на основе глины. Полиуретановый нанокомпозит включает частицы наноглины, диспергированные в полиуретановой матрице, причем указанные частицы наноглины получают при предварительном вспучивании и диспергировании ...

СПОСОБ ПОЛУЧЕНИЯ ЖЕСТКИХ ПЕНОПОЛИУРЕТАНОВ

Изобретение относится к способу получения жестких пенополиуретанов или модифицированных уретаном пенополиизоциануратов, используемых в качестве теплоизолирующей среды, например, в электроприборах. Способ включает взаимодействие композиции на основе органических полиизоцианатов с реакционноспособной по отношению к изоцианатам композицией в присутствии углеводорода в качестве порообразователя. Реакционноспособная по отношению к изоцианатам композиция содержит максимально 20 мас.% сложных полиэфирполиолов, полученных из побочных потоков, отходов или остатков от производства DMT и/или PET, между 30 мас.% и 50 мас.% простого полиэфирполиола, полученного путем взаимодействия пропиленоксида с ароматическим амином в качестве инициатора, и между 30 мас.% и 50 мас.% простого полиэфирполиола, не инициированного ароматическим амином, причем количества рассчитывают на основе общего количества реакционноспособного по отношению к изоцианатам соединения. Жесткие пенополиуретаны или модифицированные уретаном ...

СПОСОБ ИЗГОТОВЛЕНИЯ ЖЕСТКИХ ПОЛИУРЕТАНОВЫХ ИЛИ МОДИФИЦИРОВАННЫХ УРЕТАНОМ ПОЛИИЗОЦИАНУРАТНЫХ ПЕН

Настоящее изобретение относится к способу получения жестких полиуретановых или модифицированных уретаном полиизоциануратных пен, жесткой полиуретановой или модифицированной уретаном полиизоциануратной пене и реакционной системе для получения жесткой полиуретановой или модифицированной уретаном полиизоциануратной пены. Указанный способ включает получение жестких полиуретановых или модифицированных уретаном полиизоциануратных пен из полиизоцианатов и полифункциональных изоцианат–активных соединений в присутствии вспенивающих агентов. Полифункциональные изоцианат–активные соединения включают немодифицированный или модифицированный новолачный полиол и простой полиэфирполиол, имеющий гидроксильное число в интервале между 50 и 650 мг KOH/г, полученный при взаимодействии полифункционального инициатора вначале с этиленоксидом и затем с пропиленоксидом, где степень пропоксилирования находится в интервале между 0,33 и 2 молями пропиленоксида на активный атом водорода в инициаторе и где мольное отношение ...

ЖЕСТКИЕ ПЕНОПОЛИУРЕТАНЫ

Настоящее изобретение относится к жестким пенополиуретанам, способу их получения, а также к полиольной смеси для их получения. Жесткий пенополиуретан получают путем превращения А) органических или модифицированных органических полиизоцианатов или их смесей, В) одного или нескольких простых полиэфиров сложных эфирполиолов, D) при необходимости простых полиэфиролполиолов, Е) при необходимости антипиренов, F) одного или нескольких вспенивающих агентов, G) катализаторов и Н) при необходимости других вспомогательных компонентов и/или добавок. Указанный компонент В) является продуктом превращения а1) от 15 до 40% масс. одного или нескольких полиолов со средней функциональностью от 2,5 до 8, а2) от 2 до 30% масс. одной или нескольких жирных кислот и/или одного или нескольких сложных моноэфиров жирных кислот и а3) от 35 до 70% масс. пропиленоксида. Полиольный компонент, используемый для получения жестких пенополиуретанов, отличается высокой растворимостью в нем физического вспенивающего агента, ...

СПОСОБ ПОЛУЧЕНИЯ ЖЕСТКИХ ПЕНОПОЛИУРЕТАНОВ

Изобретение относится к способу получения жестких пенополиуретанов. Способ получения жестких пенополиуретанов осуществляют путем взаимодействия:a) органических полиизоцианатовb) с соединениями, содержащими по меньшей мере два реакционноспособных по отношению к изоцианатным группам атома водорода,в присутствииc) порообразователей,d) катализаторов, а также при необходимостие) вспомогательных веществ и добавок,при этом в качестве компонента b) используют смесь, содержащую:b1) от 20 до 70 масс.ч. одного или нескольких высокофункциональных простых эфиров многоатомных спиртов с функциональностью от 3,7 до 5,2 и гидроксильным числом от 370 до 500 мг КОН/г,b2) от 5 до 30 масс.ч. одного или нескольких простых эфиров многоатомных спиртов на основе ароматических аминов с функциональностью от 3 до 4 и гидроксильным числом от 150 до 500 мг КОН/г,b3) от 5 до 20 масс.ч. содержащего гидроксильные группы сложного эфира жирной кислоты иb4) от 1 до 20 масс.ч. одного или нескольких низкомолекулярных агентов ...

ПЕНОПОЛИУРЕТАНЫ ИЛИ ПЕНОПОЛИИЗОЦИАНУРАТЫ, ВСПЕНЕННЫЕ ГИДРОФТОРУГЛЕРОДАМИ И ДИОКСИДОМ УГЛЕРОДА

Изобретение относится к способу получения пригодных при производстве холодильных установок жестких пенополиуретанов или пенополиизоциануратов, включающему взаимодействие: (а) органического диизоцианата и/или полиизоцианата с (b) инициированным ароматическим амином полиолом, при отношении эквивалентов групп (а) к группам с активным водородом (b), составляющем от примерно 0,9 до примерно 3,0, в присутствии (с) дополнительного диоксида углерода и воды и (d) C3-C5 фторированного углеводорода. Задачей настоящего изобретения является создание способа получения жестких пенополиуретанов, имеющих хорошие физические свойства, включая низкий k-фактор, с использованием более приемлемых с экологической точки зрения вспенивающих агентов. Поставленная задача решается тем, что в качестве вспенивающего агента используется HFC (фторуглеводород) в комбинации с водой и дополнительным диоксидом углерода. В результате добавления дополнительного диоксида углерода к составу вспенивающего агента понижается минимальная ...

СТАБИЛЬНЫЕ ПРИ ХРАНЕНИИ ПОЛИОЛЬНЫЕ КОМПОЗИЦИИ ДЛЯ ПОЛУЧЕНИЯ ЖЕСТКОЙ ПОЛИИЗОЦИАНУРАТНОЙ ПЕНЫ

Изобретение относится к полиольной композиции, стабильной при хранении, к составу для получения полиизоциануратной пены и к способу получения полиизоциануратной пены. Полиольная композиция включает следующие компоненты: алифатический сложный полиэфирполиол, имеющий гидроксильное число менее 100, ароматический сложный полиэфирполиол, простой полиэфирполиол новолачного типа, и фторуглеводородный вспенивающий агент. Используемый алифатический сложный полиэфирполиол получен реакцией, по меньшей мере, поликарбоновой кислоты с полигидроксисоединением. Полиольная композиция не показывает фазового разделения, определяемого визуальной проверкой без увеличения, в течение периода, по меньшей мере, 60 дней в условиях окружающей среды. Вышеуказанная композиция может быть введена в реакцию с полиизоцианатом со значением изоцианатного индекса от 2,5 до 4 с образованием жесткой полиизоциануратной пены. Изобретение позволяет получить пену с улучшенной когезией, улучшенной адгезией и уменьшенной частотой ...

СЛОЖНЫЕ ПОЛИЭФИРПОЛИОЛЫ ИЗ ИЗОФТАЛЕВОЙ КИСЛОТЫ И/ИЛИ ТЕРЕФТАЛЕВОЙ КИСЛОТЫ И ОЛИГОАЛКИЛЕНОКСИДОВ

Изобретение относится к способу получения сложного полиэфирполиола с концентрацией простых эфирных групп в диапазоне между 9,0 моль/кг сложного полиэфирполиола и 22 моль/кг сложного полиэфирполиола, применению сложного полиэфирполиола, полученного таким способом, способу получения PUR- или PUR/PIR-пенопласта на основе сложного полиэфирполиола, а также к применению такого PUR- или PUR/PIR-пенопласта. Способ получения сложного полиэфирполиола включает (i) на первой стадии (А) изофталевая кислота, при необходимости в форме алкилового эфира с 1-4 атомами углерода в алкиле, и/или терефталевая кислота, при необходимости в форме алкилового эфира с 1-4 атомами углерода в алкиле, подвергаются взаимодействию с (В) олигоэтиленгликолем формулы Н-(ОСНСН)-ОН со среднечисловым количеством оксиэтиленовых групп n в диапазоне между 3,0 и 9,0 в присутствии по меньшей мере одного катализатора, выбранного из группы, состоящей из солей олова(II), солей висмута(II) и тетраалкоксилатов титана, при температуре ...

СПОСОБ ПОЛУЧЕНИЯ ДИСПЕРСИЙ ПОЛИОЛОВ ИЗ ОТХОДОВ ПОЛИУРЕТАНОВ И ИХ ПРИМЕНЕНИЕ

Изобретение относится к способу получения изоцианат-реакционноспособной дисперсии полиолов из отходов полиуретанов из потребительской области в присутствии простых полиэфироспиртов, а также к применению изоцианат-реакционноспособной дисперсии полиолов для получения полиуретановых материалов, в частности жестких полиуретановых пенопластов. Способ получения изоцианат-реакционноспособной дисперсии полиолов заключается в том, что на первой стадии отходы полиуретанов взаимодействуют с реакционной смесью, содержащей, по меньшей мере, одну дикарбоновую кислоту или производное дикарбоновой кислоты, по меньшей мере, один простой полиэфироспирт, и, по меньшей мере, один пригодный для инициирования радикальной полимеризации образователь радикалов. Реакцию проводят при температуре от 170°C до 210°C с образованием дисперсии. На второй стадии способа полученная дисперсия повторно реагирует с, по меньшей мере, одним короткоцепным диолом, содержащим от 2 до 8 атомов углерода, и/или короткоцепным триолом ...

ДОЛГОВРЕМЕННОЕ УЛУЧШЕНИЕ ВЕЛИЧИН ТЕПЛОВОЙ ИЗОЛЯЦИИ У ЖЕСТКИХ ИЗОЛЯЦИОННЫХ ПЕНОМАТЕРИАЛОВ, СОДЕРЖАЩИХ ПОЛИИЗОЦИАНУРАТ/ПОЛИУРЕТАН

Настоящее изобретение относится к стабилизированному состаренному содержащему полиизоцианурат изоляционному пеноматериалу, способу его получения и применению для тепловой изоляции и/или в изоляционных панелях. Стабилизированный состаренный содержащий полиизоцианурат изоляционный пеноматериал получен при изоцианатном индексе более 180 и/или стабилизированный состаренный содержащий полиуретан изоляционный пеноматериал, получен при изоцианатном индексе в диапазоне 123-180. Пеноматериал содержит по меньшей мере один физический пенообразователь, имеющий коэффициент лямбда для газа ≤ 12 мВт/м*К при 10°С, по меньшей мере одно поглощающее СО2 соединение и/или продукты реакции между соединением, поглощающим СО2, и СО2, герметик, непроницаемый для диффундирования газа, который покрывает по меньшей мере 50% поверхностей пеноматериала. Значение % моль. СО2 в стабилизированном состаренном пеноматериале находится в диапазоне между 0 и 33% при расчете на совокупное количество молей СО2 и физических пенообразователей ...

ПОЛИМЕРЫ НА ПОЛИИЗОЦИАНАТНОЙ ОСНОВЕ, ПОЛУЧЕННЫЕ ИЗ КОМПОЗИЦИЙ, ВКЛЮЧАЮЩИХ НЕСИЛИКОНОВЫЕ ПОВЕРХНОСТНО-АКТИВНЫЕ ВЕЩЕСТВА, И СПОСОБ ИХ ПОЛУЧЕНИЯ

Полиуретановые, полиизоциануратные и полимочевиновые полимеры, в частности вспененные полимеры, получают из композиций, включающих несиликоновые полиэфирные поверхностно-активные вещества. Несиликоновые полиэфирные поверхностно-активные вещества представляют собой простые полиэфиры, содержащие от примерно 10 до примерно 90 вес.% оксиэтиленовых звеньев и от примерно 10 до примерно 90 вес.% оксиалкиленовых звеньев, включающих по меньшей мере 4 углеродных атома. Эти несиликоновые полиэфирные поверхностно-активные вещества могут быть использованы для приготовления вспененных материалов, свойства которых практически идентичны свойствам вспененных материалов, полученных с использованием известных поверхностно-активных веществ на силиконовой основе. 5 с. и 12 з.п. ф-лы, 9 табл.

ПЕНОПОЛИУРЕТАНЫ ИЛИ ПЕНОПОЛИИЗОЦИАНУРАТЫ, ВСПЕНЕННЫЕ ГИДРОФТОРУГЛЕРОДАМИ И ДИОКСИДОМ УГЛЕРОДА

... 1. Способ получения жестких пенополиуретанов или пенополиизоциануратов, включающий взаимодействие: a) органического диизоцианата и/или полиизоцианата с b) инициированным амином полиолом, имеющим молекулярную массу, по меньшей мере, 149 и функциональность, по меньшей мере, 3, в присутствии c) до 5% от общей массы пенообразующей реакционной смеси дополнительного диоксида углерода; d) до 20% от общей массы пенообразующей реакционной смеси С3-С5 фторированного углеводорода. 2. Способ по п.1, отличающийся тем, что реакционная смесь дополнительно включает один или более полиолов с молекулярной массой от примерно 92 до примерно 1500, отличных от инициированного амином полиола b). 3. Способ по п.1, отличающийся тем, что инициированный амином полиол имеет молекулярную массу от примерно 149 до примерно 1500. 4. Способ по п.1, отличающийся тем, что инициированный амином полиол b) инициирован этилендиамином, диэтилентриамином, гексаметилендиамином, ароматическим диамином, моноэтаноламином, диэтаноламином ...

КАТАЛИТИЧЕСКАЯ КОМПОЗИЦИЯ И СПОСОБ ЕЕ ПРИМЕНЕНИЯ

... 1. Композиция, включающая раствор по меньшей мере одного представителя, выбранного из группы, состоящей из карбоксилата щелочного металла и карбоксилата щелочноземельного металла, в растворителе, который является нереакционноспособным по отношению к изоцианатным группам полиизоцианата. ! 2. Композиция по п.1, где карбоксилат выбирают из группы, состоящей из карбоксилата натрия, карбоксилата калия и карбоксилата кальция. ! 3. Композиция по п.1, где карбоксилат является производным линейной или циклической карбоновой кислоты или поликарбоновой кислоты. ! 4. Композиция по п.3, где карбоновую кислоту или поликарбоновую кислоту выбирают из группы, состоящей из муравьиной кислоты, уксусной кислоты, пропионовой кислоты, 3-хлорпропионовой кислоты, пивалевой кислоты, масляной кислоты, гамма-аминомасляной кислоты, валериановой кислоты, акриловой кислоты, коричной кислоты, кротоновой кислоты, олеиновой кислоты, бензойной кислоты, 2-гидроксибензойной кислоты, п-аминобензойной кислоты, п-метилбензойной ...

СПОСОБ ФОРМОВАНИЯ ЖЕСТКИХ ПЕНОПОЛИУРЕТАНОВ С УЛУЧШЕННОЙ ТЕПЛОПРОВОДНОСТЬЮ

... 1. Формованный жесткий пенополиуретан, имеющий отношение плотности формованного пенополиуретана (кг/м3) к λ(10°C) (мВт/(м·К)), измеренной через 24 ч после получения пенополиуретана, от 1,65 до 2,15, полученный способом инжектирования в замкнутую полость формы реакционной смеси при коэффициенте уплотнения 1,03-1,9, где полость формы находится при пониженном давлении, и реакционная смесь содержит: ! А) органический полиизоцианат, ! В) физический вспенивающий агент, ! С) полиольную композицию, содержащую, по меньшей мере, один полиол с функциональностью 3 или более и гидроксильным числом от 300 до 800, ! D) воду, составляющую 0-2,5 мас.% от общей полиольной рецептуры, ! Е) катализатор и ! F) вспомогательные вещества и/или добавки, ! где пенополиуретан имеет формованную плотность 33-38 кг/м3. ! 2. Пенополиуретан по п.1, в котором полость формы находится под давлением от 300 до 950 мбар. ! 3. Пенополиуретан по п. 2, в котором полость формы имеет начальное давление 500-850 мбар. ! 4. Пенополиуретан ...

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

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

СИЛОКСАНОВЫЕ КОМПОЗИЦИИ

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

ИЗОЦИАНАТНО-ЭПОКСИДНАЯ ВСПЕНИВАЕМАЯ СИСТЕМА

СПОСОБ ИЗОЛЯЦИИ ТРУБ

Предлагается способ изоляции труб путем нанесения реакционной смеси ароматического полиизоцианата, органического соединения с мол.м. 92 - 1000, имеющего в среднем по меньшей мере три реакционноспособных относительно изоцианатов атома водорода, алифатического, циклоалифатического или проматического полиамина и/или полиимина с мол.м. 32 - 1000 в качестве сшивающего агента и вспенивающего агента, служащей для выполнения по меньшей мере одного изоляционного слоя жесткого пенопласта и в случае необходимости дополнительной реакционной смеси для выполнения покровного слоя на вращающуюся трубу, который заключается в том, что на вращающуюся трубу наносят реакционную смесь для выполнения изоляционного слоя жесткого пенопласта, содержащую имеющее мол. м. 32 - 1000 соединение общей формулы I или II, приведенных в описании.

ГИБРИДНЫЕ СЛОЖНОПОЛИЭФИРНЫЕ - ПРОСТЫЕ ПОЛИЭФИРНЫЕ ПОЛИОЛЫ ДЛЯ УЛУЧШЕННОГО ВСПЕНИВАНИЯ ПРИ ИЗВЛЕЧЕНИИ ИЗ ФОРМЫ В ПОЛИУРЕТАНОВЫХ ЖЕСТКИХ ПЕНОПЛАСТАХ

... 1. Сложнополиэфирный - простой полиэфирный полиол, который получен стадиями смешения:1) фталевого ангидрида со спиртом, имеющим номинальную функциональность 3 и молекулярную массу 90-500 в условиях для образования полуэфира фталевого ангидрида; и2) алкоксилирования полуэфира, образованного на стадии 1) с образованием сложнополиэфирного - простого полиэфирного полиола, имеющего гидроксильное число от 200 до 350,в котором спиртом является (простой полиэфир)полиол, причем последний содержит, по меньшей мере, 70% мас. полиоксипропилена.2. Сложнополиэфирный - простой полиэфирный полиол по п. 1, в котором мольное отношение ангидрида к полиспирту на стадии 1) выше составляет от 1:1 до 1:1,5.3. Сложнополиэфирный - простой полиэфирный полиол по п. 1, в котором смешение на стадии 1) выполняется при температуре от 90°C до 140°C.4. Сложнополиэфирный - простой полиэфирный полиол, который получен способом по п. 1.5. Полиольная смесь, которая содержит от 10 до 40% мас. сложнополиэфирного - простого полиэфирного ...

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 ...

ОСУЩЕСТВЛЯЕМЫЙ С ПОМОЩЬЮ ВАКУУМА СПОСОБ ИЗГОТОВЛЕНИЯ ЗАКРЫТОПОРИСТЫХ ЖЕСТКИХ ПЕНОПОЛИУРЕТАНОВ С ИСПОЛЬЗОВАНИЕМ СМЕШАННЫХ ПОРООБРАЗОВАТЕЛЕЙ

СЕНДВИЧНАЯ СТРУКТУРА, СОДЕРЖАЩАЯ ВАКУУМНУЮ ИЗОЛЯЦИОННУЮ ПАНЕЛЬ, И СПОСОБ ЕЕ ПОЛУЧЕНИЯ

СПОСОБ ПОЛУЧЕНИЯ ЖЕСТКИХ ПЕНОПОЛИУРЕТАНОВ

... 1. Способ получения жестких пенополиуретанов путем взаимодействия:a) органических полиизоцианатовb) с соединениями, содержащими по меньшей мере два реакционноспособных по отношению к изоцианатным группам атома водорода,в присутствииc) порообразователей,а) катализаторов, а также при необходимостие) вспомогательных веществ и добавок,отличающийся тем, что в качестве компонента b) используют смесь, содержащую:b1) от 20 до 70 мас.ч. одного или нескольких высокофункциональных простых эфиров многоатомных спиртов с функциональностью от 3,7 до 5,2 и гидроксильным числом от 370 до 500 мг КОН/г,b2) от 5 до 30 мас.ч. одного или нескольких простых эфиров многоатомных спиртов на основе ароматических аминов с функциональностью от 3 до 4 и гидроксильным числом от 150 до 500 мг КОН/г,b3) от 5 до 20 мас.ч. содержащего гидроксильные группы сложного эфира жирной кислоты иb4) от 1 до 20 мас.ч. одного или нескольких низкомолекулярных агентов удлинения цепей и/или сшивающих агентов с функциональностью от 2 до ...

КОМПОЗИЦИИ, СОДЕРЖАЩИЕ ФТОРЗАМЕЩЕННЫЕ ОЛЕФИНЫ

... 1. Композиция, используемая в качестве пенообразователя, и/или композиция для теплопереноса и/или растворителя и/или чистящей жидкости и/или аэрозоля, причем композиция включает: ! по меньшей мере один первый фторалкен формулы IA или формулы II: ! ! ! где каждый R представляет собой независимо Cl, F, Вr, I или Н при условии, что в формуле (II) по меньшей мере один R является хлором, ! w равен 1 или 2, ! z представляет собой 1 или 2, ! R' является (CR2)nY, ! Y представляет собой CRF2, ! и n равен 0, 1, 2 или 3 при условии, что если в соединении присутствует Вr, то в соединении нет водорода. ! 2. Композиция по п.1, содержащая также по меньшей мере один дополнительный компонент, который выбирают из группы, состоящей из частично фторированных углеводородов (HFC), простых эфиров, спиртов, альдегидов, кетонов, метилформиата, муравьиной кислоты, воды, транс-1,2-дихлорэтилена, диоксида углерода, диметоксиметана (DME), а также второй фторалкен, отличный от указанного первого фторалкена, и комбинацию ...

СПОСОБ ПОЛУЧЕНИЯ ПОЛИУРЕТАНОВ

... 1. Способ получения полиуретанов путем взаимодействия:a) полиизоцианатов сb) соединениями по меньшей мере с двумя атомами водорода, реакционноспособными по отношению к изоцианатным группам,отличающийся тем, что компонент b) включает по меньшей мере один содержащий наполнитель полиол bi) и по меньшей мере одну тиксотропную добавку bii).2. Способ по п.1, отличающийся тем, что содержащиеся в полиоле bi) наполнители являются неорганическими наполнителями.3. Способ по п. 1, отличающийся тем, что содержащиеся в полиоле bi) наполнители выбирают из группы, включающей графит, вспенивающий графит, меламин, карбонат кальция, сажу, содержащие атомы фосфора твердые антипирены, стеклянные шарики и стеклянные волокна.4. Способ по п. 1, отличающийся тем, что содержащиеся в полиоле bi) наполнители являются органическими наполнителями.5. Способ по п. 1, отличающийся тем, что содержащиеся в полиоле bi) наполнители можно получать полимеризацией in-situ олефинненасыщенных мономеров в простых полиэфирполиолах ...

ЖЕСТКИЕ ПОЛИУРЕТАНОВЫЕ ПЕНОМАТЕРИАЛЫ

... 1. Жесткий полиуретановый пеноматериал, который можно получить по реакцииa) полиизоцианатов сb) соединениями, содержащими по меньшей мере два атома водорода, которые являются реакционноспособными по отношению к изоцианатным группам, в присутствииc) вспенивающих средств иd) по меньшей мере одного огнезащитного средства,где соединения, содержащие по меньшей мере два атома водорода, которые являются реакционноспособными по отношению к изоцианатным группам b), содержат по меньшей мере один простой полиэфир полиола bi) и по меньшей мере один сложный полиэфир полиола bii), и огнезащитное средство d) содержит вспененный графит di).2. Жесткий полиуретановый пеноматериал по п. 1, в котором вспененный графит di) используют в количестве, составляющем от 2 до 25 мас.% в пересчете на массу компонентов b), c) и d).3. Жесткий полиуретановый пеноматериал по п. 1, в котором простой полиэфир полиола bi) используют в количестве, составляющем от 3 до 20 мас.% в пересчете на массу компонентов b), c) и d).4.

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 ...

СПОСОБ ПОЛУЧЕНИЯ ИЗДЕЛИЯ ИЗ ПЕНОПОЛИУРЕТАНА

ВСПЕНЕННЫЕ МАТЕРИАЛЫ ИЗ ПОЛИУРЕТАНА В КАЧЕСТВЕ ОСНОВНОГО МАТЕРИАЛА ДЛЯ ПОЛУЧЕНИЯ ЛОПАСТЕЙ, В ЧАСТНОСТИ ДЛЯ ВЕТРОСИЛОВЫХ УСТАНОВОК

... 1. Полиуретановый вспененный материал повышенной прочности с плотностью от более 50 до 300 г/л с независящей от плотности прочностью на сжатие более 7,5·10МПа (л/г), с независящим от плотности модулем упругости при сжатии более 1,7·10МПа (л/г), с независящей от плотности прочностью на растяжение более 6,4·10МПа (л/г), с независящим от плотности модулем упругости при растяжении более 2,4·10МПа (л/г), с независящей от плотности прочностью при изгибе более 1,25·10МПа (л/г)и с независящим от плотности модулем упругости при изгибе более 1,75·10МПа (л/г), получаемый путем смешивания(а) полиизоцианатов с(б) содержащими реагирующие с изоцианатами группы соединениями, с(в) содержащими воду порообразующими средствами и в случае необходимости с(г) катализатором и(д) другими добавками,до образования реакционной смеси и отверждения реакционной смеси, при этом отверждающаяся реакционная смесь содержит от 1 до 40 масс.% полых микрошариков, и/или смесь наносят на пористое упрочняющее средство (е), которое ...

ПОЛИУРЕТАНОВЫЕ И ПОЛИИЗОЦИАНУРАТНЫЕ ПЕНОПЛАСТЫ

... 1. Состав полиуретанового или полиизоциануратного пенопласта, включающий(а) комбинированный полиол, включающий(i) от приблизительно 20 до приблизительно 60 мас.% ароматического сложного полиэфирполиола, имеющего гидроксильное число больше приблизительно 50 мг КОН/г и функциональность, по меньшей мере, приблизительно 2;(ii) от приблизительно 10 до приблизительно 30 мас.% простого полиэфирполиола новолачного типа, имеющего гидроксильное число больше приблизительно 100 мг КОН/г и функциональность, по меньшей мере, приблизительно 2,2, и(iii) от приблизительно 5 до приблизительно 40 мас.% простого полиэфирполиола, включающего полиол, инициированный сахарозой или сорбитом, имеющий среднее гидроксильное число больше приблизительно 200 мг КОН/г и среднюю функциональность, по меньшей мере, приблизительно 4;все проценты рассчитаны исходя из общей массы комбинированного полиола, и где компоненты (i), (ii) и (iii) выбраны так, что комбинированный полиол в целом имеет среднюю функциональность, по меньшей ...

ПОЛИОЛЫ НА ОСНОВЕ РАСТИТЕЛЬНЫХ МАСЕЛ И ПОЛУЧЕННЫЕИЗ НИХ ПОЛИУРЕТАНЫ

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

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 ...

Verfahren zur Herstellung von Polyurethanschaumstoffen

Herstellung von zellularen Elastomeren und chemische Zusammensetzungen zu deren Herstellung.

Verfahren zur Herstellung von Schaumstoffen

Herstellung zellularer Polymere und ihre Zusammensetzung

Verfahren zur Herstellung von Skikernen

ISOCYANATFREIE SCHÄUMBARE MISCHUNGEN

Alkoxylierte Mannichkondensate enthaltende Polyole und Verfahren zu ihrer Herstellung.

Harte Polyurethan- und Polyisocyanurat-Schaumstoffe

Verfahren zur Herstellung von Schaumstoffen aus Polyesterpolyolen mit hohen Säurewerten

Siliconstabilisatoren für Polyurethan- oder Polyisocyanurat-Hartschaumstoffe

Gegenstand der vorliegenden Erfindung sind Polyethersiloxane der Formel (I), wie nachfolgend und in den Anspruchen beschrieben, die kaum primare sondern überwiegend sekundare oder tertiäre OH-Gruppen aufweisen, und die Verwendung der erfindungsgemaßen Polyethersiloxane zur Herstellung von Polyurethanschaumstoffen und Polyisocyanuratschaumstoffe, sowie Polyurethan- bzw. Polyisocyanurat-Hartschaumstoffe, die unter Verwendung der Polyethersiloxane erhalten werden.

One-component rigid polyurethane foam system for aerosol cans - contains isocyanate prepolymer, known additives, volatile propellant and a viscous liq., satd. aliphatic hydrocarbon

One-component systems (I) in pressurised containers, for prodn. of rigid polyurethane (PU) foam, comprise mixts. of (a) NCO gp.-contg. prepolymers obtd. by reaction of polyisocyanates with cpds. of mol.wt. 62-10,000 contg. at least 2 NCO-reactive H atoms, (b) known additives etc., (c) volatile liq. propellants with b.pt. below 0 deg.C/1-13 hPa, and (d) 0.25-2.5 wt.% (w.r.t. a) liq., satd. aliphatic hydrocarbons with dynamic viscosity 110-230 mPa.s at 20 deg.C and density 0.845-0.890 g/m3. Also claimed is rigid PU foam obtd. by hardening system (I) by the action of moisture after it leaves the pressure can. USE/ADVANTAGE - Used (esp. in aerosol cans) for filling applications, e.g. between window frames and walls, holes in walls etc., and fixing, e.g. door frames. Incorporation of (d) prevents the usual change in vol. or thickness due to diffusion processes, changes in temp. and/or humidity sec., and gives 1-component PU foam with improved dimensional stability.

Feuerbestaendige Polyurethan-Schaeume

Verfahren zur Herstellung von gegebenenfalls zellförmigen Polyurethanen

Lagerstabile Polyurethansynthesezusammensetzung

AROMATISCHE POLYESTER-POLYOLE HERGESTELLT AUS EINEM NATÜRLICHEN ÖL

MODIFIED POLYISOCYANURATE FOAM AND METHOD OF PREPARATION

Starrer Hochtemperaturisolierschaum aus Polyisocyanat und einer Polyolmischung und Herstellungsverfahren

Preparation of nitrogen-containing polyetherols used in polyurethane production comprises catalytically alkoxylating a nitrogen-containing compound containing active hydrogen atoms

Preparation of nitrogen-containing polyetherols by catalytically alkoxylation comprises heating a starter compound mixture containing at least one nitrogen atom with at least two reactive hydrogen atoms to 50-100 deg C followed by reaction with alkylene oxides at 90-160 deg C. Preparation of nitrogen-containing polyetherols by catalytically alkoxylation comprises heating a starter compound mixture containing at least one nitrogen atom with at least two reactive hydrogen atoms to 50-100 deg C followed by reaction at 90-160 deg C. An Independent claim is included for the obtained polyetherols.

Verwendung definierter Kunstharze beim Befestigen von Schrauben und ähnlichen Verankerungsmitteln, entsprechende Verfahren und Kunstharze

Verwendung von flüssigen bis pastösen, bei der Verwendung aushärtenden Mehrkomponenten-Kunstharzsystemen zur Fixierung von Befestigungselementen in einem Substrat, wobei ein bei Umgebungstemperatur flüssiges bis pastöses Mehrkomponenten-Kunstharzsystem nach oder während des Mischens seiner Komponenten in mindestens ein Loch eingebracht wird, gewartet wird, bis es dort mindestens hinreichend ausgehärtet ist und dann mindestens ein Befestigungselement in die resultierende Kunstharzmasse eingetrieben wird; diese Verwendung beinhaltende Verfahren und Mehrkomponenten-Kunstharzsysteme. Die Systeme weisen bestimmte Parameter auf, wie ein verdrängbares Volumen von 0,1 bis 40 Vol.-%, eine Gelzeit von 5 bis 65 Sekunden und vor dem Aushärten eine mittlere Viskosität von 1000 Pa.s oder niedriger - wobei eine der Komponenten des Mehrkomponenten-Kunstharzsystems eine Viskosität von mindestens 30 Pa.s aufweist - und einen Thioxotropieindex im Bereich von 4 bis 10 sowie vorzugsweise im ausgehärteten Endzustand ...

Preparation of improved polyurethane foams

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

A process for the production of foamed polyurethanes

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

FOAMS OF AROMATIC POLYAMIDES

RIGID POLYURETHANES

... 1425563 Rigid polyurethanes LAPORTE INDUSTRIES Ltd 1 Feb 1973 [8 Feb 1972 (2) 11 March 1972 (2)] 5782/72 5783/72 11516/72 and 11515/72 Heading C3R Rigid polyurethanes are prepared by (a) reacting an #-caprolactone with a polyfunctional compound having 3 or more active hydrogen atoms per molecule to produce a liquid adduct of M.W. from 200 to 750 and (b) reacting the adduct with a liquid diisocyanate. A blowing agent may be included in the reaction mixture so as to produce a rigid foam. The reaction to produce the adduct may be carried out in the presence of an epoxide which is preferably ethylene oxide or propylene oxide. Suitably polyfunctional initiators are alcohols, aminoalcohols or. amines such as glycerol, trimethylol propane, trimethylol ethane, triethanolamine, diethanolamine, diethylene triamine, pentaerythritol, sucrose and dipentaerythritol. The adduct may also be formed in the presence of a difunctional compound, e.g. a diol. Catalysts for urethane formation may be included ...

Three component polyol blend for use in rigid polyurethane foams

A polyisocyanate-based rigid closed-cell foam is made by reacting an organic isocyanate with a polyol composition in the presence of a blowing agent, where the polyol composition contains at least: a) an aromatic amine initiated polyoxyalkylene polyether polyol having an hydroxyl number of 200 meq polyol/g KOH or more; b) an aliphatic amine initiated polyoxyalkylene polyether polyol having an hydroxyl number of 200 meq polyol/g KOH or more; and c) an aromatic polyester polyol having an hydroxyl number of 200 meq. polyol/g KOH or more, preferably in an amount of 18.0 weight percent or less based on the weight of the polyol composition. The blowing agent is selected from the group consisting of cyclopentane, HFC's and HCFC's and mixtures thereof and is preferably present in an amount of 5.0 weight percent or more based on the weight of the polyol composition. Preferably, the blowing agent is soluble in the polyol composition without sacrificing, and advantageously whilst improving, the thermal ...

PROCESS FOR THE MANUFACTURE OF RIGID FOAMED POLYMERS

... 1382456 Foamed carbodiimide linked polymers BASF WYANDOTTE CORP 27 June 1972 [5 Aug 1971] 29997/72 Heading C3C A rigid foamed carbodiimide linked polymer is made by condensing an organic polyisocyanate or a "quasi prepolymer" (i.e. made by reacting an excess of an organic polyisocyanate with an active hydrogen containing compound) in the presence of a catalyst which is 2,4,6-tris-(N- methylethanolamino)-s-triazine alone or together with an.isocyanate trimerization catalyst which is 1,3,5-tris-(N,N-dialkyl-aminoalkyl)-shexahydrotriazine, 2,4,6 - tris(dimethylaminomethyl) phenol, o- and/or p-dimethylaminomethyl phenol or an organotin compound, e.g. R11SnOR111 where R11 is alkyl, aryl or alkenyl and R111 is R11 or -SnR11. In the examples a mixture of 2,4- and 2,6-toluene diisocyanate, with optionally methylene diphenyl diisocyanate and/or 4,41-methylene dianiline, was foamed by condensing in the presence of the above triazine, ...

Fragrance containing polyurethane foam

Removing catalyst residues of catalysts from polyetherpolyols

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

PRODUCTION OF POLYISOCYANURATE FOAM

Process for the production by electrolysis of lustrous corrosion-resistant nickel-chromium coatings

Electrolytic coatings of nickel followed by chromium are produced by first using a nickel bath containing a suspension of solid material having conductive properties and a particle size of 20 to 100 angstroms, and then coating with chromium from a chromium bath. Preferably the suspended material is carbon used in amount of 0.1 to 30 grams per litre of the nickel bath.

POLYISOCYANATE COMPOSITIONS

Improvements relating to polyether suitable for use in the production of polyurethane foams

A rigid polyurethane foam is obtained by mixing an organic polyisocyanate and a blowing agent with a polyether composition of high functionality (normally greater than 7) which has been obtained by reacting sucrose and sorbitol with 1,2-propylene oxide and which has a hydroxyl number of 350 to 600, the molar ratio of sucrose to sorbitol being 0.5 : 1 to 2 : 1 (see Division C2). One shot or prepolymer techniques may be used. Specified isocyanates include phenylene, tolylene, naphthalene and hexamethylene diisocyanates, methylene-bis-(4-cyclohexyl-and 4 - phenyl - isocyanates), triphenylmethane and benzene triisocyanates. Fluorocarbons are specified blowing agents. Tertiary amines and/or tin salts may be used as catalysts. Emulsifying agents, particularly siloxane-oxyalkylene block copolymers may be present as may flame retardants including antimony trioxide, phosphate esters, tetrachlorobisphenol A and 2-hydroxyethyl phosphite.ALSO:A polyether composition of high functionality (normally ...

BROMINE-CONTAINING POLYOLS

Polyurethane foam

Pyridine derivatives

Metal-pyridines interaction products are prepared by the interaction of an alkali metal, Mg, Al or mixture thereof with pyridine or an alkyl pyridine or mixture thereof wherein the interacting mixture is maintained so that its specific conductivity is at least 200 microhmo. The interaction may be initiated, preferably rapidly, in known manner, during which initiation the specific conductivity varies considerably, and said initiation should be completed prior to control of the interaction by maintaining the specific conductivity at at least 200 microhmo. The conductivity is preferably measured by a pair of electrodes, preferably Pt. electrodes, inserted inside the interaction vessel and dipping into the bulk of the interaction mixture. Maintenance of the specified specific conductivity may be effected by regulation of temperature, rate of addition of further reactants as diluents or addition of initiator and agitation of the interaction to ensure a uniform mixture. The products of the invention ...

Polyurethane and polyisocyanurate foam and method of manufacture thereof

LOW FRIABILITY RIGID POLYURETHANE FOAM

... 1496972 Polyurethane foams OLIN CORP 22 Sept 1975 [23 Sept 1974] 38829/75 Heading C3R A rigid polyurethane foam is prepared by a process which comprises reacting a polyether polyol reactant with an organic polyisocyanate in the presence of a catalyst and a foaming agent wherein the polyether polyol reactant comprises a first polyether polyol which has an OH-number of from 150 to 800 and which has been produced by condensing 4,4,4-trichloro-1,2- epoxybutane with a mixture of dextrose and water and/or an aliphatic diol or triol, and wherein the reaction mixture further comprises a second polyether polyol which has an OH number of from 100 to 800 and which is an adduct of ethylene oxide with a C 1 -C 8 -aliphatic primary amine or a C 6 -C 8 -aromatic primary amine, or an alkanolamine in which each alkanol group contains 2-5 carbon atoms, or a mixture of two or more thereof, the second polyol being present in such a proportion as to result in the formation of a foam of reduced surface friability ...

PROCESS FOR THE PREPARATION OF CARBODIIMIDE-ISOCYANURATE FOAMS

... 1488096 Foamed carbodiimide and isocyanurate polymers BASF WYANDOTTE CORP 11 Feb 1975 [25 Feb 1974] 5807/75 Headings C3C C3R and C3P Foamed polymers containing carbodiimide and isocyanurate linkages are made by mixing an organic polyisocyanate at an initiating temperature with a catalytic amount of a catalyst comprising a tertiary amine trimerization catalyst and an amino alcohol of molecular wt. 98-300 and which contains 1-3 tertiary amino groups wherein each N atom is linked to at least one #-hydroxy-C 1-4 alkyl group. The condensation may be carried out in the presence of a polyol and also a fluorocarbon blowing agent. In the examples mixtures of 2,4- and 2,6-tolylene diisocyanate and/or a polymethylene polyphenylisocyanate were foamed in the presence as catalyst of 1,3,5-tris- (N,N - dimethylaminopropyl) - 8 - hexahydrotriazine or 2,4,6 - tris - (dimethylaminomethyl)- phenol with 1,3,5 - tris - (2 - hydroxyethyl) - shexahydrotriazine, triethanolamine, N - (2- hydroxyethyl)morpholine ...

PROCESS FOR THE PREPARATION OF CARBODIIMIDE-ISOCYANURATE FOAMS

... 1483913 Foamed carbodiimide and isocyanurate polymers BASF WYANDOTTE CORP 2 Dec 1974 [21 Dec 1973 (2)] 52056/74 Headings C3C and C3R Rigid foamed polymers containing carbodiimide and isocyanurate linkages are made by condensing an organic polyisocyanate at an initiating temperature of 0-50‹ C. in the presence of a catalytically sufficient amount of a catalyst comprising a tertiary amine trimerization catalyst and methanol or furfuryl alcohol. The condensation may also be carried out in the presence of a polyol and a catalyst which promotes urethane linkages, as well as a fluorocarbon blowing agent. In the examples 2,4- and 2,6-tolylene diisocyanate and/or polymethylene polyphenyl isocyanate with optionally a polyol (in Examples 40-83) were condensed and foamed in the presence of as catalyst a mixture of methanol or furfuryl alcohol and 1,3,5 - tris - (N,N - dimethylaminopropyl) - shexahydrotriazine, 2,4,6 - tris - (dimethylaminomethyl)phenol or triethylenediamine, and also optionally 1,1,2 ...

LOW FRIABILITY POLYISOCYANURATE FOAMS

RIGID POLYURETHANE FOAM COTAINING POLYSTER RESIDUE DEGESTIION PRODUCT

A process for the production of foam materials containing urethane groups

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

Improvements in and relating to foamed polymers

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

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

PROCEDURE FOR THE PRODUCTION OF PU FOAM MATERIALS

PROCEDURE FOR THE PRODUCTION OF HARD AERATED PLASTICS ON ISOCYANATE BASIS

pOLYURETHAN-FOAM MATERIALS FOR tUBING INSULATION

VERFAHREN ZUM HERSTELLEN VON POLYURETHAN MIT INTEGRALHAUT

PROCEDURE FOR THE PRODUCTION OF POLYURETHANE RIGID FOAM MATERIALS

OPEN-CELLULAR POLYURETHANE RIGID FOAM MATERIALS

Foam-forming compositions containing mixtures of cis-1,1,1,4,4,4-hexafluoro-2-butene and 1,1,1,3,3-pentafluoropropane and their uses in the preparation of polyisocyanate-based foams

Foam-forming compositions are disclosed which contain a mixture of cis-1,1,1,4,4,4-hexafluoro-2-butene and 1,1,1,3,3-pentafluoropropane. Also disclosed is a closed-cell polyurethane or polyisocyanurate polymer foam prepared from reaction of an effective amount of the foam-forming composition with a suitable polyisocyanate. Also disclosed is a process for producing a closed-cell polyurethane or polyisocyanurate polymer foam by reacting an effective amount of the foam-forming composition with a suitable polyisocyanate.

Process for producing rigid polyurethane foams

The invention relates to a process for producing rigid polyurethane foams by reacting a) polyisocyanates with b) compounds having at least two hydrogen atoms which are reactive toward isocyanate groups in the presence of c) blowing agents, wherein the component b) comprises at least one polyether alcohol bi) prepared by addition of alkylene oxides onto toluenediamine and at least one polyether alcohol bii) prepared by addition of alkylene oxides onto H-functional starter substances comprising oligomeric glycerol.

Fixing of vacuum insulation panels in cooling apparatuses

A polyurethane foam reaction system to fix over an area of a vacuum insulation panel (VIP) on an inside of an outer wall of a cooling apparatus and/or on a outside of a wall of a inner container of the cooling apparatus, where the reaction system includes the following components: an organic and/or a modified organic polyisocyanate; at least one high molecular weight compound having at least two hydrogen atoms which are reactive toward a isocyanate group; a blowing agent; a catalyst; and a foam stabilizer, where the components are selected to obtain a closed-cell polyurethane foam having a free-foamed density of 50 to 1100 g/l and a compressive strength of ≧15 kPa, excluding rigid integral foams.

Methods of preparing hydroxy functional vegetable oils

Simple, economical preparative processes for the provision of pure hydroxyl functional materials that are derived by converting the alkene groups of the unsaturated molecules found in vegetable oils, into hydroxyl groups.

Branched poly(trimethylene ether) polyols

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

Composition containing specific carbamate type compounds suitable for producing polyurethane foams

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

Method of predicting the physical properties of polyurethane materials

The specification relates to the formulation of polyurethane materials particularly polyurethane and polyisocyanurate foams. The specified method allows the formulator to mathematically predict the final physical properties of the polyurethane and polyisocyanurate foams by using the algorithm described herein.

Polishing pad

A polishing pad generates very few scratches on a surface of a polishing object, and is excellent in planarization property. The polishing pad has a high polishing rate and is excellent in planarization property. The polishing pad grooves become very little clogged with abrasive grains or polishing swarf during polishing and, even when continuously used for a long period of time, the polishing rate is scarcely reduced.

Polishing pad, manufacturing method therefor, and method for manufacturing a semiconductor device

A polishing pad having a polishing layer comprising a thermoset polyurethane foam, wherein the thermoset polyurethane foam contains, as raw material components, an isocyanate component, and active-hydrogen-containing compounds, and the active-hydrogen-containing compounds comprise one or more polyol compounds (each) having two or more functional groups, and a monool compound having one functional group.

Medium density foams having good impact resistance and a process for their production

Impact resistant, medium density molded polyurethane foams are produced by the process of the present invention. These foams include from 5 to 35% by weight of glass fibers having an average fiber length of from 12.5 to 50 mm and from 25 to 60% by weight of one or more particulate fillers having an average particle size of from 0.3 to 40 microns.

Composite body and method of making the same

A composite body is provided that includes a rigid polyurethane foam shell and an elastomeric polyurethane layer disposed over the rigid polyurethane foam shell. The rigid polyurethane foam shell defines a cavity within the composite body. The rigid polyurethane foam shell has a closed cell content of at least 70% and comprises the reaction product of a first isocyanate component and a first isocyanate-reactive component in the presence of a blowing agent. The elastomeric polyurethane layer is disposed over the polyurethane foam shell. The elastomeric polyurethane layer comprises the reaction product of a second isocyanate component and a second isocyanate-reactive component. A method of forming the composite body includes the step of molding the rigid polyurethane foam shell, demolding the rigid polyurethane foam shell from the mold, and applying an elastomeric polyurethane composition upon the rigid polyurethane foam shell after demolding to form the elastomeric polyurethane layer.

Foamable composition for polyurethane foam and polyurethane foam

A foamable composition for polyurethane foam is provided which advantageously improves heat insulating properties, a long-term stability, and a dimensional stability of a polyurethane foam that is produced by using carbon dioxide as a blowing agent. Further, a polyurethane foam which has excellent heat insulating properties is provided by foaming and curing the foamable composition for polyurethane. In the production of the polyurethane foam in which carbon dioxide is used in the foaming, a polyol component is used which includes a phenolic resin polyol that is obtained by adding at least one alkylene oxide to a phenolic novolak resin, and an aromatic amine polyol that is obtained by adding at least one alkylene oxide to an aromatic diamine such that the total amount thereof is 60% or more by mass, based on the total polyol component.

Producing rigid polyurethane foams and rigid polyisocyanurate foams

The present invention relates to a process for producing rigid polyurethane foams or rigid polyisocyanurate foams by the reaction of at least one polyisocyanate A), polyetherester polyols B) based on aromatic dicarboxylic acids obtainable by esterification of b1) 10 to 70 mol % of a dicarboxylic acid composition comprising 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, b2) 2 to 30 mol % of one or more fatty acids and/or fatty acid derivatives, b3) 10 to 70 mol % of one or more aliphatic or cycloaliphatic diols having 2 to 18 carbon atoms or alkoxylates thereof, b4) 2 to 50 mol % of a polyether polyol having a functionality of not less than 2, prepared by alkoxylating a polyol having a functionality of not less than 2 in the presence of an amine as catalyst, optionally further polyester polyols C) other than those of component B), and at least one polyether polyol D), wherein the mass ratio of total components B) and optionally C) to component D) is at least 7. The present invention also relates to the rigid foams thus obtainable and also to their use for producing sandwich elements having rigid or flexible outer layers. The present invention further relates to the underlying polyol components.

Aromatic polyesters, polyol blends comprising the same and resultant products therefrom

The present invention discloses low viscosity aromatic polyester polyols suitable for blending with other polyols or other materials mutually compatible with the polyester polyols to achieve polyurethane and polyisocyanurate products. In particular the present invention discloses polyester polyols comprising the reaction of: A) an aromatic component comprising at 80 mole percent or greater of terephthalic acid; B) polyethylene glycol having a molecular weight from 150 to 1000; and C) a glycol different from the glycol of B); wherein A, B, and C are present in the reaction on a percent weight bases of 20 to 60 weight percent A); 40 to 75 weight percent of B); and 0 to 40 weight percent of C).

Polyurethane Flame Retardant Formulation

The invention relates to a formulation suitable to provide polyurethane, the formulation comprising (a) at least one polyurethane forming mixture; (b) at least one phosphate component selected from the group consisting of ammonium polyphosphate (APP) and melamine phosphates, and mixtures thereof, and; (c) at least one metal or metalloid oxide particle having a maximum particle size of less than 300 μm, wherein the metal or metalloid is selected from the group consisting of Mg, and Al, and wherein said at least one phosphate component is present in an amount ranging from 20 to 45% by weight based on 100% by weight of the formulation.

Producing foams having improved properties

The present invention relates to a composition for producing a rigid polyurethane foam comprising at least one polyol having a molecular weight of not less than 1700 g/mol and at least one blowing agent as component A, and at least one polyisocyanate as component B, wherein the at least one polyisocyanate B comprises from 11 to 39.5 wt % of a polyisocyanate prepolymer, based on a polyether polyol having an OH number of at least 100 mg KOH/g, to a rigid polyurethane foam obtainable by reacting this composition, to a process for producing such a rigid polyurethane foam, to the use of such a rigid polyurethane foam for insulation, especially for pipe insulation and also to a process for producing an insulated pipe.

PRODUCTION OF RIGID POLYURETHANE FOAM

What are described are (a) a composition suitable for production of rigid polyurethane foam, comprising at least one isocyanate component, a polyol component, optionally a catalyst that catalyses the formation of a urethane or isocyanurate bond, optionally blowing agents, where the composition additionally comprises polyalkylsiloxane (PAS) containing no polyether modification, and polyether-modified siloxane, (b) a process for producing rigid polyurethane foam using polyalkylsiloxanes and polyether-modified siloxane, (c) the rigid polyurethane foam Thus obtainable and (d) the use thereof. 1. A composition for production of rigid polyurethane foam , the composition comprising at least one isocyanate component , a polyol component , optionally a catalyst that catalyses the formation of a urethane or isocyanurate bond , optionally blowing agents , where the composition additionally comprises polyalkylsiloxane containing no polyether modification , and polyether-modified siloxane.2. The composition according to claim 1 , wherein the polyalkylsiloxanes contain less than 20 silicon atoms.3. The composition according to claim 1 , wherein the polyalkylsiloxanes are used in combination with polyether-modified siloxanes in a mass ratio of from 1:5 to 1:200.4. The composition according to claim 1 , wherein the proportion by mass of the total amount of polyalkylsiloxanes and polyether-modified siloxanes claim 1 , based on 100 parts by mass of polyol component claim 1 , is from 0.1 to 10 pphp.6. The composition according to claim 5 , wherein{'br': None, 'c+d>0.5.'}7. The composition according to claim 5 , wherein{'br': None, 'd=0 and c>0.5.'}8. The composition according to claim 5 , wherein{'br': None, 'c+d<0.5.'}11. The process for producing rigid polyurethane foam by reacting one or more polyol components with one or more isocyanate components claim 1 , wherein the reaction is effected in the presence of polyalkylsiloxanes containing no polyether modification claim 1 , and ...

PUR-/PIR RIGID FOAMS CONTAINING POLYESTER POLYOLS WITH REDUCED FUNCTIONALITY

The invention relates to a method for preparing polyester polyols containing monools, and to their use, in particular for preparing polyurethane/polyisocyanurate rigid foams (also referred to hereafter as PUR/PIR rigid foams) with improved fire performance. 1. A multistage process for producing a polyester polyol PES-B comprising: {'sub': a', 'a, 'claim-text': {'br': None, 'i': n', '/n, 'sub': a', 'a, '(OH)(carboxy)>1, and'}, 'wherein in step a) the ratio of the molar amount of employed hydroxyl groups [n(OH)] to the molar amount of carboxyl-equivalent groups [n(carboxy)] is, 'a) completely reacting at least one carboxyl compound selected from the group consisting of i) polyfunctional carboxylic acids and ii) polyfunctional hydroxy-reactive carboxylic acid derivatives selected from the group consisting of carbonyl chlorides, alkyl carboxylates, hydroxy-functional carboxylic acids, lactones and carboxylic anhydrides with at least one polyol containing 2-8 hydroxy groups to afford a polyester polyol PES-A,'} {'sub': reactant', 'reactant, 'claim-text': {'br': None, 'i': n', '/n, 'sub': reactant', 'reactant, '(OH)(Carboxy)>1.'}, 'wherein the ratio of the molar sum of the hydroxy groups n(OH)of all reactant molecules employed in steps a) and b) to the molar sum of the employed carboxyl-equivalent groups n(carboxy)is, 'b) subsequently reacting the polyester polyol PES-A obtained in step a) with a monofunctional alcohol to afford the PES-B,'}2. The process as claimed in claim 1 , wherein the polyester polyol PES-B has a number-average OH functionality of >1.00 to <2.00.3. The process as claimed in claim 1 , wherein the carboxyl compound in step a) comprises glutaric acid claim 1 , succinic acid claim 1 , adipic acid claim 1 , terephthalic acid claim 1 , phthalic acid claim 1 , isophthalic acid claim 1 , a derivative of any thereof claim 1 , or a combinations of any thereof.4. The process as claimed in claim 1 , wherein the at least one polyol in step a) comprises a polyol ...

Process for producing isocyanate-based foam construction boards

A process for producing a polyurethane or polyisocyanurate construction board, the process comprising (i) providing an A-side reactant stream that includes an isocyanate containing compound; (ii) providing a B-side reactant stream that includes a polyol and a physical blowing agent, where the physical blowing agent includes pentane, butane, and optionally a blowing agent additive that has a Hansen Solubility Parameter (δt) that is greater than 17 MPa−0.5; and (iii) mixing the A-side reactant stream with the B-side reactant stream to produce a reaction mixture.

Method for producing polyoxymethylene polyoxyalkylene block copolymers

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

Translucent polyurethane or polyisocyanurate foams

The present invention relates to a process for producing translucent polyurethane and polyisocyanurate foams by reaction of a component A comprising A1 at least one polyol reactive with the component B; A2 optionally at least one amine; A3 water and optionally formic acid; A4 at least one foam stabilizer; A5 optionally auxiliary and/or additive substances; A6 optionally at least one flame retardant; A7 at least one catalyst; and a component B comprising B1 at least one aliphatic or cycloaliphatic polyisocyanate component or a combination thereof; and B2 optionally at least one hydrophilized isocyanate; and B3 less than 20 parts by weight of an aromatic polyisocyanate component, wherein the parts by weight of B3 are based on the sum of the parts by weight of B1 to B3 normalized to 100 parts by weight, characterized in that the reaction of the component A with the component B is carried out at an isocyanate index of at least 150, wherein the obtained translucent polyurethane and polyisocyanurate foams have a light transmission according to EN ISO 13468-2:2006 of at least 10% and a haze of at least 70%, determined according to ASTM D1003-13, in each case measured at a layer thickness of 20 mm. The present invention further relates to polyurethane and polyisocyanurate foams obtained by the process and to the use thereof as a construction element, as a wall element, as a floor element, in buildings, in vehicles or lamps.

Polyol compositions

Embodiments of the present disclosure are directed towards polyol compositions including a dispersion of polyisocyanate polyaddition particles in a carrier polyol, wherein the polyisocyanate polyaddition particles have an average particle diameter from 0.1 to 10.0 microns and the dispersion has a solids content from 5 wt % to 50 wt % based upon a total weight of the dispersion, and a polyester polyol that is from 1 wt % to 98 wt % of the polyol composition based upon a total weight of the polyol composition.

Aerosol can configuration

An aerosol can configuration includes an outer can, an inner container and a spray head with a discharge element. The spray head has an outlet valve connected to the interior of the outer can and an outlet valve connected to the interior of the inner container. The two outlet valves are opened jointly by pressing on the spray head, so that the contents of the outer can and the contents of the inner container jointly enter the discharge element. To form a foam, the outer can contains at least 30-70% by weight isocyanate, in particular diphenylmethane 4,4′-diisocyanate, 3-15% by weight polyol with an OH number of less than 300, and 5-30% by weight liquid gas at a critical temperature of ≥+70° C. At least 5-30% by weight polyol with an OH number of more than 300, and 1-10% by weight liquid gas with a critical temperature of ≥+70° C. are contained in the inner container.

PROCESS FOR PRODUCING ISOCYANATE-BASED FOAM CONSTRUCTION BOARDS

A process for producing a polyurethane or polyisocyanurate construction board, the process comprising of providing an A-side reactant stream that includes an isocyanate-containing compound; providing a B-side reactant stream that includes a polyol, where the B-side reactant steam includes a blowing agent mixture including isopentane and a blowing agent additive that has a Hansen Solubility Parameter (δ) that is greater than 15 MPa; and mixing the A-side reactant stream with the B-side reactant stream to produce a reaction mixture. 1. A construction board comprising:{'sup': '−0.5', '(i) a foam body having a generally planar shape with first and second planar surfaces, where said foam body is a closed-cell foam body including an acyclic pentane and a blowing agent additive contained within the foam body, where the blowing agent additive has a Hansen Solubility Parameter of from 17.0 to 35.0 MPa, where the blowing agent additive has a boiling point, at one atmosphere, of less than 150° C., where said blowing agent additive is selected from the group consisting of ketones, aldehydes, ethers, esters, halogenated hydrocarbons, and aromatics, where the acyclic pentane and the blowing agent additive form a physical blowing agent mixture, where the physical blowing agent mixture includes from about 7 to about 35 mole % of the blowing agent additive based on the total moles of physical blowing agent mixture, where the closed-cell body is a polyurethane or polyisocyanurate foam body prepared by reacting an isocyanate-containing compound with an aromatic polyester polyol, and where the isocyanate-containing compound and the aromatic polyester polyol are reacted at a molar ratio to provide an iso index of at least 220; and'}(ii) first and second facers attached to said first and second planar surfaces, respectively.2. The construction board of claim 1 , where the foam body has a density of 1.0 to 2.5 lbs/ft.3. The construction board of claim 1 , where the foam body has an index ...

Dimensionally stable closed-cell and rigid foams produced with methylal blowing agent

A method of producing a closed-cell and rigid foam. The method comprises reacting an isocyanate composition including one or more polyisocyanates and a polyol composition including one or more polyols including one or more aromatic polyester polyols having a hydroxyl functionality of greater than 2 and one or more physical and/or chemical blowing agents including methylal to form a closed-cell and rigid foam configured to retain at least 85% of an initial volume of the closed-cell and rigid foam when exposed to about 97% relative humidity at about 70° C. for at least seven or more days.

Method for Making Organic Foam Composites Containing Aerogel Particles

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

POLISHING PAD AND METHOD OF FABRICATING SEMICONDUCTOR DEVICE USING THE SAME

Provided is a polishing pad including a polishing layer, wherein the nuclear magnetic resonance (NMR) C spectrum of a processed composition prepared by adding 1 g of the polishing layer to a 0.3 M aqueous solution of potassium hydroxide (KOH) and allowing the mixture to react in a closed container at a temperature of 150° C. for 48 hours includes a first peak appearing at 15 ppm to 18 ppm, a second peak appearing at 9 ppm to 11 ppm, a third peak appearing at 138 ppm to 143 ppm, and a fourth peak appearing at 55 ppm to 65 ppm, and the softening control index calculated by Equation 1 is 0.10 to 0.45. The polishing pad includes the polishing layer having physical properties corresponding to the softening control index, and thus may exhibit a removal rate and defect prevention performance within desired ranges in polishing of a polishing target. 2. The polishing pad of claim 1 , whereina percentage of the area of the fourth peak relative to a total area of the first peak and the second peak is 30% to 75%, anda percentage of the total area of the first peak and the second peak relative to a total area of the first peak, the second peak and the third peak is 60% to 70%.3. The polishing pad of claim 1 , whereinan area ratio of the third peak to the second peak is 1:1 to 5:1.4. The polishing pad of claim 1 , whereinan area ratio of the first peak to the second peak is 10:1 to 10:5.6. The polishing pad of claim 4 , whereinthe weight-average molecular weight (Mw) is 2,600 to 4,000, andthe number-average molecular weight (Mn) is 2,500 to 3,000.7. The polishing pad of claim 1 , whereinthe polishing layer comprises a cured product of a preliminary composition containing a urethane-based prepolymer,{'sup': '13', '#text': 'a nuclear magnetic resonance (NMR) C spectrum of the preliminary composition shows a fifth peak and a sixth peak in descending order of peak position (ppm) at 16 ppm to 20 ppm, and'}an area ratio of the fifth peak to the sixth peak is 1:1 to 5:1.8. The polishing ...

Polyurethane insulation foam composition comprising halogenated olefins and a tertiary amine compound

A polyurethane insulation foam composition is disclosed herein. The polyurethane insulation foam comprises: (i) an isocyanate compound; (ii) an isocyanate reactive compound; (iii) water; (iv) a tertiary amine compound; (v) a hydrophilic carboxylic acid compound; (vi) a halogenated olefin compound; and (vii) optionally, other additives.

Inherent flame retardant rigid polyurethane foam

The present invention provides a kind of inherent flame retardant rigid polyurethane foam. The production formula comprises 100 to 105 pbw of polyether polyol and reactive phosphorus-containing flame retardant, 2.5 to 3.5 pbw of amine catalyst, 0.8 to 2.5 pbw of tertiary amine catalyst, 0.8 to 2.5 pbw of foam stabilizer, 0.5 to 1.5 pbw of blowing agent, 135 to 150 pbw of isocyanates, and 0.05 to 0.1 pbw of organo-metallic catalyst, wherein the reactive phosphorus-containing flame retardant is 9,10-dihydro-9-oxa-10-phosphaphenanthrene-4-hydroxybenzyl alcohol. The active monomers containing flame retarding elements are introduced into main chain and side chain of PU for modification, which permanently improves the flame retardancy of PU without obvious effect on other performance of PU matrix.

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.

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

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

A polyisocyanate foam for sandwich panel with low processing temperature and enhanced adhesion

Described herein are a polyisocyanurate foam, its use in a sandwich panel, a sandwich panel including the foam, and a process for preparing the sandwich panel. The polyisocyanurate foam shows a good adhesion property even without adhesion promoter, improved processability of PIR systems at lower temperature (≤50° C.), and an improved flame resistance property.

ISOCYANATE REACTIVE COMPOSITIONS

Embodiments of the present disclosure are directed towards isocyanate reactive compositions that include a polyol and tris(4-hydroxyphenyl)methane alkoxylate. 1. An isocyanate reactive composition comprising:a polyol; andtris(4-hydroxyphenyl)methane alkoxylate, wherein the polyol is from 25 to 95 parts of the isocyanate reactive composition based upon 100 parts of a combination of the polyol and the tris(4-hydroxyphenyl)methane alkoxylate, and the tris(4-hydroxyphenyl)methane alkoxylate is from 5 to 75 parts of the isocyanate reactive composition based upon 100 parts of the combination of the polyol and the tris(4-hydroxyphenyl)methane alkoxylate.2. The isocyanate reactive composition of claim 1 , wherein the polyol is a polyester polyol claim 1 , a polyether polyol claim 1 , a polycarbonate polyol claim 1 , or a combination thereof.3. The isocyanate reactive composition of claim 1 , including an isocyanate claim 1 , wherein the isocyanate is from 50 to 500 parts of the isocyanate reactive composition based upon 100 parts of the combination of the polyol and the tris(4-hydroxyphenyl)methane alkoxylate.4. The isocyanate reactive composition of claim 1 , wherein the isocyanate reactive composition has an aromatic group content from 10 to 35 weight percent based upon a total weight of the polyol and the tris(4-hydroxyphenyl)methane alkoxylate.5. A cured product formed from curing the the isocyanate reactive composition of any one of - .6. The cured product of claim 5 , wherein the cured product is a plaque claim 5 , a foam claim 5 , or a film. Embodiments of the present disclosure are directed towards isocyanate reactive compositions, more specifically, embodiments are directed towards isocyanate reactive compositions that include a polyol and tris(4-hydroxyphenyl)methane alkoxylate.Cured materials may be utilized for a number of applications. For some applications, cured materials having one or more improved fire resistance properties are desired. There is continued ...

BRANCHED HARD- AND SOFT-BLOCK COPOLYMERS

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

SULPHUR-CONTAINING POLYESTER POLYOLS, THEIR PRODUCTION AND USE

The present invention relates to sulfur-containing polyester polyols and to the preparation and use thereof. 1. A polyester polyol , comprising an esterification product of:at least one dicarboxylic acid component A), wherein the at least one dicarboxylic acid component A) comprises at least one disulfide-containing dicarboxylic acid a-1); anda polyol component K) comprising at least one diol D), wherein the at least one diol (D), comprises at least one diol b-1) selected from the group consisting of cyclohexanedimethanol and hexane-1,6-diol.2. The polyester polyol of claim 1 , wherein the at least one dicarboxylic acid component A) additionally comprises a non-sulfur-containing dicarboxylic acid a-2).3. The polyester polyol of claim 1 , wherein the at least one dicarboxylic acid component A) additionally comprises terephthalic acid.4. The polyester polyol of claim 1 , wherein the at least one diol D) additionally comprises a further diol b-2).5. The polyester polyol of claim 1 , wherein the polyol component K) additionally comprises at least one polyhydric alcohol C) having a functionality greater than 2.6. The polyester polyol of claim 1 , wherein at least one of the at least one disulfide-containing dicarboxylic acid a-1) is an aliphatic disulfide-containing dicarboxylic acid.7. The polyester polyol of claim 6 , wherein the at least one disulfide-containing dicarboxylic acid a-1) is 3-(2-carboxyethyldisulfanyl)propanoic acid.8. The polyester polyol of claim 5 , wherein the at least one polyhydric alcohol C) is selected from the group consisting of glycerol claim 5 , trimethylolpropane (TMP) claim 5 , pentaerythritol claim 5 , reaction products thereof with an alkylene oxide claim 5 , and mixtures thereof.9. A process for preparing the polyester polyol of claim 1 , the processing comprising reacting the at least one diol D) with the polyol component K).10. The process of claim 9 , wherein no additional catalyst is used during the reaction.11. A process for ...

Novel compositions for polyurethane applications

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

Polyols for thermoset and thermoplastic applications of lignin

A composition comprising: lignin, a polyol carrier compound and an isocyanate is disclosed. The lignin being mixed with the polyol carrier compound. The polyol carrier compound is selected from the group consisting of TCPP, TECP, TMCP, TDCP, etholoxylated and propoxylated phenols, tris-chloroisopropyl phosphate, amino methyl propanol , glycerin carbonate, polyether modified polysiloxanes, bromophthalic anhydride derivatives, propanediols; bromine, chlorine and/or phosphorus based fire retardents, epoxies, glycerins, sugar, glycols, certain natural oil based polyols and ethoxylated and or propoxylated alcohols. The lignin-polyol carrier compound mixture is reacted with the isocyanate producing a foam, plastic or other material. For a thermoplastic solid the same polyol carrier compounds are used but in higher percentages of lignin.

Automotive seat made from epoxidized soy oil

A composition for forming polyurethane foams is provided using epoxidized triglycerides with unopened rings. The composition further includes a polyol, a blowing agent, and a catalyst that catalyzes the reaction of polyols with isocyanates to form polyurethanes. The polyol is a polyoxyalklylene and the epoxidized triglyceride is an epoxidized soybean oil. A method for forming polyurethane foam using the aforementioned composition is also provided.

Methods for producing flame-retardant pur/pir foam materials

The invention relates to flame-retardant polyurethane foam materials or polyurethane/polyisocyanurate foam materials (also referred to individually or collectively as “PUR/PIR foam materials” below) and to methods for producing PUR/PIR foam materials by reacting a reaction mixture containing A1 an isocyanate-reactive component, A2 a propellant, A3 a catalyst, A4 optionally an additive, and A5 a flame retardant with B an isocyanate component, wherein the production is carried out using an index of 80 to 600. The invention is characterized in that the flame retardant A5 contains (hydroxymethyl)phosphonate and optionally the dimer thereof as component A5.1.

Urethane foam system for molded articles

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

Isopropylidenediphenol-based polyether polyols, processes for their production, and foams produced therefrom

Isopropylidenediphenol-based polyether polyols, processes for their production, foams produced using such isopropylidenediphenol-based polyether polyols, such as PUR-PIR rigid foams, as well as to processes for producing such foams. The polyether polyols include: (a) an alkoxylate of 4,4′-isopropylidenediphenol; (b) an alkoxylate of 2,4′- and/or 2,2′-isopropylidenediphenol; (c) an alkoxylate of components comprising structural elements which are derived from phenol, acetone and/or isopropylidenediphenol, but which are not isomers of isopropylidenediphenol; and (d) an alkoxylate of a diol that has a molecular weight less than the molecular weight of isopropylidenediphenol and that does not contain structural elements derived from phenol, acetone and/or isopropylidenediphenol.

POLYURETHANE FOAM WITH IMPROVED COMBUSTION BEHAVIOR

The present disclosure provides for an isocyanate-reactive composition that can react with an isocyanate compound in a reaction mixture to form a polyurethane-based foam. The isocyanate-reactive composition includes an isocyanate reactive compound and a combustion modifier composition. The isocyanate reactive compound has an isocyanate reactive moiety and an aromatic moiety. The combustion modifier composition includes both phosphorus from a halogen-free flame-retardant compound and a transition metal from a transition metal compound. The combustion modifier composition can have a molar ratio of the transition metal to phosphorus (mole transition metal:mole phosphorous) of 0.05:1 to 5:1. 1. An isocyanate-reactive composition for forming a polyurethane-based foam , comprising:an isocyanate reactive compound having an isocyanate reactive moiety and an aromatic moiety, wherein the aromatic moiety is 5 weight percent (wt. %) to 80 wt. % of the isocyanate reactive compound based on the total weight of the isocyanate reactive compound; and 0.1 wt. % to 7.0 wt. % of phosphorus from a halogen-free flame-retardant compound; and', '0.05 wt. % to 14.0 wt. % of a transition metal from a transition metal compound, wherein the wt. % of the transition metal and wt. % of the phosphorous are each based on the total weight of the isocyanate reactive compound, the halogen-free flame-retardant compound and the transition metal compound., 'a combustion modifier composition that includes2. The isocyanate-reactive composition of claim 1 , wherein the combustion modifier composition has a molar ratio of the transition metal to phosphorus of 0.05:1 to 5:1.3. The isocyanate-reactive composition of claim 1 , wherein the halogen-free flame-retardant compound is selected from the group consisting of a phosphate claim 1 , a phosphonate claim 1 , a phosphinate and combinations thereof.4. The isocyanate-reactive composition of claim 1 , wherein the transition metal compound is selected from the ...

Isopropylidenediphenol-based polyether polyols, processes for their production, and foams produced therefrom

Isopropylidenediphenol-based polyether polyols, processes for their production, foams produced using such isopropylidenediphenol-based polyether polyols, such as PUR-PIR rigid foams, as well as to processes for producing such foams. The polyether polyols have an internal block comprising polymerized ethylene oxide moieties and an external cap comprising polymerized propylene oxide moieties.

Polyurethane foams with agricultural by-products

A method of producing a polyurethane based foam that includes providing a ground crop residue having an average particle size of less than 10 mm and that is prepared by grinding crop residues, providing a polyurethane system that includes an isocyanate component and an isocyanate-reactive component, of which the polyurethane system has an isocyanate index from 70 to 350, forming a modified polyurethane system by adding the ground crop residue to the polyurethane system in a range from 1.0 wt % to 20.0 wt %, based on a total weight of the modified polyurethane system, and forming the polyurethane based foam so as to have an applied density from 30 kg/m3 to 75 kg/m3, according to ASTM D-1622, and to have the ground crop residue embedded within polyurethane polymers that are a reaction product of the isocyanate component and the isocyanate-reactive component of the polyurethane system.

URETHANE EXCHANGE CATALYSTS AND METHODS FOR REPROCESSING CROSS-LINKED POLYURETHANE FOAMS

Disclosed herein are methods for reprocessing polyurethane compositions such as polyurethane foams. The method comprises introducing a polyurethane composition into a compounding device, heating the polyurethane composition to an effective bond-exchange temperature, and compounding the polyurethane composition for an effective bond-exchange time. 1. A method for reprocessing a polyurethane composition , the method comprising introducing a polyurethane composition into a compounding device , heating the polyurethane composition to an effective bond-exchange temperature , and compounding the polyurethane composition for an effective bond-exchange time , wherein the polyurethane composition comprises a network polymer and an effective amount of a polyurethane exchange catalyst permeated within the network polymer , wherein the network polymer comprises a dynamic network formed from an isocyanate constitutional unit and a second constitutional unit having a hydroxyl group capable of reacting with an isocyanate group of the isocyanate constitutional unit to form a urethane bond.2. A method of claim 1 , wherein the polyurethane composition is prepared from a polyurethane foam.3. The method of claim 2 , further comprising providing the polyurethane composition by impregnating the polyurethane foam with the catalyst by swelling.4. The method of claim 2 , further comprising providing the polyurethane composition by mixing the polyurethane foam with the catalyst.5. The method of claim 2 , wherein the network polymer is formed in the presence of the catalyst.6. The method of claim 2 , wherein the polyurethane exchange catalyst comprises a metal selected from Sn claim 2 , Bi claim 2 , Fe claim 2 , Zr claim 2 , Ti claim 2 , Hf claim 2 , Al claim 2 , Zn claim 2 , Cu claim 2 , Ni claim 2 , Co claim 2 , Mn claim 2 , V claim 2 , Sc claim 2 , Y claim 2 , Ce claim 2 , or Mo and a ligand coordinated with the metal atom.7. The method of claim 6 , wherein the catalyst comprises DBTDL ...

Polyurethane foam from high functionality polyisocyanate

A formulation system contains: (a) a pre-polymer reaction product of a polymeric isocyanate and a polyether polyol, where: (i) the polymeric isocyanate contains five weight-percent or more methylene diphenyl diisocyanate; (ii) the polymeric isocyanate has a functionality of 3.0 or less; (iii) the polyether polyol is present in the pre-polymer at a concentration of one to 25 weight-percent; (iv) the polyol has an equivalent weight of 50 to 500 grams per equivalent; (v) the —NCO concentration of the pre-polymer is 15 to 31 weight-percent; (vi) the pre-polymer is free of isocyanate trimers; (b) a polyester polyol component containing 10 to 25 weight-percent of free glycol; and (c) a blowing agent that contains less than five weight-percent water; where the ratio of pre-polymer and polyester result in foam having a trimer content of 12 to 22 weight-percent, and an —NCO index of more than 300 and less than 700.

METHOD FOR PRODUCING POLYURETHANE HARD FOAM COMPOSITE ELEMENTS USING MANNICH POLYOLS

The present disclosure relates to a method for producing rigid polyurethane foam composite elements, including at least one outer layer and a rigid polyurethane foam layer, by mixing (a) polyisocyanates with (b) compounds having at least two hydrogen atoms reactive with isocyanate groups, (c) optionally flame retardant(s), (d) blowing agent, (e) catalyst, and (f) optionally auxiliaries and adjuvants to form a reaction mixture, applying the reaction mixture to the outer layer, and curing it to form the rigid polyurethane foam. The present disclosure further relates to a rigid polyurethane foam composite element obtainable by such a method. 1. A method for producing rigid polyurethane foam composite elements , comprising at least one outer layer and a rigid polyurethane foam layer , by mixing(a) polyisocyanates with(b) compounds having at least two hydrogen atoms reactive with isocyanate groups,(c) optionally flame retardant(s),(d) blowing agent,(e) catalyst, and(f) optionally auxiliaries and adjuvantsto form a reaction mixture, applying the reaction mixture to the outer layer, and curing it to form the rigid polyurethane foam,where component (b) comprises at least one polyether alcohol (b1), prepared by alkoxylation of a starter or of a starter mixture having an average functionality of 4 to 8 and a hydroxyl number of 300 to 600 mg KOH/g,at least one aromatic Mannich condensate (b2), which may have been alkoxylated, preparable by reaction of an aromatic compound which on an aromatic ring carries at least one hydroxyl group and/or at least one group —NHR, where R is any organic radical or is hydrogen, one or more aldehydes and/or ketones, and one or more primary or secondary amines,at least one aromatic polyester polyol (b3), andoptionally chain extenders and/or crosslinking agents,the fraction of aromatic Mannich condensate being greater than 5 wt % to less than 20 wt %, based on the total weight of component (b).2. The method according to claim 1 , wherein the ...

PROCESS FOR PRODUCING POLYURETHANE/POLYISOCYANURATE (PUR/PIR) RIGID FOAMS

The invention relates to a process for producing polyurethane/polyisocyanurate rigid foams by reacting a specific reaction mixture in the presence of a catalyst component containing potassium formate and to the polyurethane/polyisocyanurate rigid foams produced according to said method. 1. A process for producing a rigid polyurethane/polyisocyanurate (PUR/PIR) foam comprising reacting a reaction mixture comprising:A) a polyisocyanate component; B1) a polyol component,', 'B2) a catalyst component, and', 'B3) optionally auxiliary and additive substances; and, 'B) an isocyanate-reactive component comprisingC) a physical blowing agentwherein:(1) the polyol component B1) comprises at least 40% by weight, based on the total weight of the polyol component B1), of a polyol B1.a) comprising one or more of a polyester polyol, and a polyether ester polyol,(2) the catalyst component comprises potassium formate B2.a),(3) the reaction mixture contains less than 0.3% by weight of water and less than 0.2% by weight of formic acid, and(4) the reaction mixture has an isocyanate index of ≥150.2. The process as claimed in claim 1 , wherein the reaction mixture further contains less than 0.20% by weight of naphthenic acids.3. The process as claimed in claim 1 , wherein the reaction mixture comprises at least 55% by weight claim 1 , based on the total weight of the polyol component B1) claim 1 , of a polyol B1.a) comprising one or more of a polyester polyol claim 1 , and a polyether ester polyol.4. The process as claimed in claim 3 , wherein the polyol B1.a) is present in a proportion of 55.0-98.0% by weight based on the total weight of the component B1).5. The process as claimed in claim 1 , wherein the component B) of the reaction mixture comprises:50.0% to 90.0% by weight of at least one polyester polyol and/or polyether ester polyol B1.a) having a hydroxyl number in the range from 80 mg KOH/g to 290 mg KOH/g determined according to DIN 53240,1.0% to 10.0% by weight of at least one ...

PROCESS FOR PRODUCING POLYURETHANE/POLYISOCYANURATE (PUR/PIR) RIGID FOAMS

The invention relates to a process for producing polyurethane/polyisocyanurate rigid foams by reacting a specific reaction mixture in the presence of a catalyst component containing potassium formate and an amine, and to the polyurethane/polyisocyanurate rigid foams produced according to said method. 1. A process for producing a rigid polyurethane/polyisocyanurate (PUR/PIR) foam comprising reacting a reaction mixture comprising:A) a polyisocyanate component, and B1) a polyol component,', 'B2) a catalyst component, and', 'B3) optionally auxiliary and additive substances; and, 'B) an isocyanate-reactive component comprisingC) a physical blowing agentwherein:(1) the catalyst component B2) comprises potassium formate B2.a) and an amine B2.b), and(2) the reaction mixture contains less than 0.2% by weight of formic acid and has an isocyanate index ≥150, {'br': None, 'sup': 1', '2, 'sub': 3', '2', '2, 'RN(CH)(CHCHOR) \u2003\u2003(I)'}, 'the proviso that the reaction mixture contains no aminic compounds having the formula (I)'}wherein{'sup': '1', 'sub': 3', '2', '2', '3', '2', '2', '2, 'Rrepresents CH, CH—CH—N(CH)or CH—CHOH, and'}{'sup': '2', 'sub': 2', '2', '2', '2', '3', '2, 'Rrepresents H, CH—CHOH or CH—CHN(CH).'}2. The process as claimed in claim 1 , wherein the reaction mixture further contains less than 0.20% by weight of naphthenic acids.3. The process as claimed in claim 1 , wherein the isocyanate-reactive component B) comprisesB1.a) at least one polyester polyol, at least one polyether ester polyol, or a combination thereof.4. The process as claimed in claim 2 , wherein the at least one polyester polyol claim 2 , at least one polyether ester polyol claim 2 , or a combination thereof is present in an amount of at least 55% by weight claim 2 , based on the total weight of the isocyanate-reactive component.5. The process as claimed in claim 1 , wherein the component B2.b) comprises dimethylbenzylamine or dimethylcyclohexylamine.6. The process as claimed in the ...

Composition in the form of a dispersion comprising a lignin, a method for the manufacturing thereof and use thereof

The present invention relates to a composition in the form of a dispersion, a method for the manufacturing of said composition and uses thereof.

Metal polyols for use in a polyurethane polymer

The present disclosure provides for a metal chelated polyol liquid and/or a metal chelated polyether polyol liquid that can be used in an isocyanate-reactive composition and a reaction mixture for forming a polyurethane polymer. The metal chelated polyester polyol liquid is a reaction product of a chelating polyester polyol having a chelating moiety and a metal compound having a metal ion. The metal chelated polyether polyol liquid is a reaction product of a chelating polyether polyol having a chelating moiety and a metal compound having a metal ion. The chelating moiety of the chelating polyester polyol or the chelating polyether polyol chelates the metal ion to form the metal chelated polyester polyol liquid or the metal chelated polyether polyol liquid, respectively, having a mole ratio of the metal ion to the chelating moiety of 0.05:1 to 2:1.

Pest-resistant spray foam formulations

Pest-resistant polyurethane spray foam formulations and products, including building insulation, are described. The “B” side of the formulation comprises water; a polyol composition comprising one or more polyols selected from glycerin-sucrose polyols, Mannich polyols, and aromatic polyester polyols, catalyst(s); surfactant(s); a blowing agent; and 0.5 to 5 wt.%, based on the amount of spray foam formulation, of a composition comprising a capsaicin compound. Capsaicin compounds can be successfully incorporated into spray foam formulations that process well to give high- quality foams. The foams inhibit termite infestation and can help to minimize or avoid structural damage that might otherwise go undetected.

Process for producing a rigid polyurethane-isocyanurate foam

The invention provides a process for producing rigid polyurethane-polyisocyanurate foams using polyols having a high proportion of secondary hydroxyl end groups. The invention further relates to the rigid polyurethane-polyisocyanurate foams thus obtainable and to the use thereof in the production of composite elements from rigid polyurethane-polyisocyanurate foams and suitable outer layers. The invention further provides the composite elements thus obtainable.

Low viscosity (meth)acrylates as reactive additives in reactive compositions for making rigid polyurethane/polyisocyanurate comprising foams

A reactive composition is disclosed for making a polyisocyanurate-polyurethane comprising rigid foam (PIR-PUR), said reactive composition comprising a polyisocyanate composition, an isocyanate-reactive composition, at least one catalyst compound suitable for making the PIR-PUR comprising foam, at least one blowing agent; and optionally one or more surfactants, one or more flame retardants, one or more antioxidants, or combinations thereof characterized in that the reactive composition further comprises a reactive viscosity reducer selected from at least one acrylate and/or methacrylate compound having no isocyanate-reactive groups and having a viscosity at 25° C. below 100 mPa·s.

PROCESS FOR THE PREPARATION OF A POLYURETHANE FOAM

The present invention relates to processes for the preparation of polyurethane foams comprising a step wherein a chemical compound with a low particle size releases a chemical and/or physical blowing agent by decomposition, polyurethane foams prepared by such processes as well as compositions comprising at least one polyol and a chemical compound with a low particle size capable of releasing a chemical and/or physical blowing agent by thermally- and/or chemically-induced degradation and uses of such compositions. 1. A process for the preparation of a polyurethane foam or a modified polyurethane foam , the process comprising a step wherein a chemical compound releases a chemical and/or physical blowing agent by thermally- and/or chemically-induced decomposition wherein the chemical compound has a particle size distribution expressed as a D50 of equal to or less than 1 μm.2. The process according to wherein the chemical compound releases the chemical and/or physical blowing agent by thermally-induced decomposition.3. The process according to wherein the chemical compound releases the chemical and/or physical blowing agent by chemically-induced decomposition.4. The process according to wherein the chemical compound is an inorganic carbonate.5. The process according to wherein the chemical compound is a hydrate of an inorganic salt.6. The process according to wherein the chemical compound has a particle size distribution expressed as a D50 of equal to or above 10 nm.7. The process according to claim 1 , wherein the process comprises the steps ofa) preparing a suspension comprising the chemical compound and at least one polyol, andb) contacting the suspension formed in step a) with a composition comprising at least one isocyanate to prepare a polyurethane foam wherein a chemical compound releases a chemical and/or physical blowing agent under thermal and/or chemical activation and wherein the chemical compound has a particle size distribution expressed as a D50 of equal ...

POLYURETHANE-BASED INSULATION BODY AND METHOD FOR PRODUCING SAME

The present invention relates to an insulation body based a hard, fine-cell and open-cell polyurethane/polyisocyanurate foam with a barrier film, and a method for producing same. 1. A process for producing an insulation body based on a fine- and open-celled polyurethane/polyisocyanurate foam in a cavity of a mold , comprising:a. optionally inserting an optionally pre-molded insert into the cavity of the mold,b. inserting a barrier film into the cavity or, if present, onto or into the insert,c. applying a pressure of 8-30 bar in the cavity,{'sub': '2', 'd. injecting a polyurethane reactive mixture containing supercritical COinto the pressurized cavity,'}e. decompressing to ambient pressure after a time of 1 to 40 seconds measured after the injection,f. curing the polyurethane reactive mixture,g. applying a vacuum of 0.001 mbar to 0.5 mbar in the cavity,h. sealing any holes in the barrier film, andi. demolding the resulting insulation body.2. The process for producing an insulation body according to claim 1 , wherein a gas scavenger material is introduced between step b) and c) and/or between step f) and g).3. The process for producing an insulation body as claimed in claim 1 , wherein the polyurethane reactive mixture comprises: A1) at least one polyol component having a functionality f of >2.5 selected from the group consisting of polyether polyols, polyester polyols, polycarbonate polyols, polyether polycarbonate polyols and polyether ester polyols, wherein the proportion of all primary OH functions present in the component A1) based on the total number of terminal OH functions in the component A1) is at least 30%,', 'A2) at least one catalyst component having Zerewitinoff-active hydrogens,', 'A3) at least one cell-opening compound,', {'sub': '2', 'A4) supercritical CO,'}, {'sub': '2', 'A5) optionally blowing agents with the exception of supercritical CO, and'}, 'A6) optionally auxiliary and/or additive substances, 'A) isocyanate-reactive component comprisingandB) ...

ENVIRONMENTALLY FRIENDLY DRIVEN POLYURETHANE SPRAY FOAM SYSTEMS

Described herein are processes for producing a polyurethane foam by mixing the following: (a) polymeric MDI with less than 40% by weight content of difunctional MDI and an aliphatic halogenated hydrocarbon compound (d1) composed of 2 to 5 carbon atoms and of at least one hydrogen atom and of at least one fluorine and/or chlorine atom, where the compound (d1) includes at least one carbon-carbon double bond, to give an isocyanate component (A), and reacting with a polyol component (b) to give the polyurethane foam. Also described herein is a polyurethane foam obtainable by said process. 1. A process for producing a polyurethane foam by mixing the following to give a reaction mixture:(a) polymeric MDI with less than 40% by weight content of difunctional MDI,(b) compounds having at least two hydrogen atoms reactive toward isocyanate groups, comprising (b1) at least one polyester polyol and (b2) at least one polyether polyol,(c) optionally flame retardant,(d) blowing agent, comprising at least one aliphatic halogenated hydrocarbon compound (d1) composed of 2 to 5 carbon atoms and of at least one hydrogen atom and of at least one fluorine and/or chlorine atom, wherein the compound (d1) comprises at least one carbon-carbon double bond,(e) optionally catalyst, and(f) optionally auxiliaries and additional substances,spraying the reaction mixture onto a substrate, andallowing said reaction mixture to harden to give the polyurethane foam, whereinan isocyanate component (A) comprising polyisocyanates (a) and blowing agent (d1), and a polyol component (B) comprising compounds (b) having at least two hydrogen atoms reactive toward isocyanate groups are produced, and thenisocyanate component (A) and polyol component (B), and also optionally other compounds (c), (e) and (f) are mixed to give the reaction mixture, wherein a ratio by mass of the isocyanate component (A) to polyol component (B) is at least 1.2.2. The process according to claim 1 , wherein a viscosity of the ...

Methods for designing polyisocyanurate foam-forming compositions, related polyisocyanurate foam-forming compositions, and foams produced thereby

Disclosed are methods for designing a polyisocyanurate foam-forming composition with good low temperature insulation performance. The methods include: (a) measuring the LTTR of a first polyisocyanurate faced foam laminate prepared from a first polyisocyanurate foam-forming composition comprising a blowing agent composition comprising one or more hydrocarbon blowing agents with an atmospheric pressure boiling point of at least 68° F. (20° C.), wherein the LTTR is measured according to CAN/UL S770-09 at a plurality of temperatures to identify a calculated inflection point temperature below which defines a first mathematical correlation between temperature and the LTTR of the first polyisocyanurate faced foam laminate and above which defines a second mathematical correlation between temperature and the LTTR of the first polyisocyanurate faced foam laminate; (b) identifying a plurality of predicted mathematical correlations between temperature and the LTTR of the first polyisocyanurate faced foam laminate at a plurality of reduced inflection point temperatures below the calculated inflection point temperature; and (c) using the plurality of predicted mathematical correlations identified in step (b) to design a second polyisocyanurate foam-forming composition that is different from the first polyisocyanurate foam-forming composition and which comprises a blowing agent composition comprising one or more hydrocarbon blowing agents with an atmospheric pressure boiling point of at least 68° F. (20° C.), wherein the second polyisocyanurate foam-forming composition produces a second polyisocyanurate faced foam laminate that has a LTTR of at least 5.4 ft 2·hr·° F./BTU·inch (0.936 m2·° C./W@25 mm) at all mean insulation temperatures within a temperature range of 10° F. to 75° F. (—12.2° C. to 23.9° C.), when measured according to CAN/UL S770-09.

New polymers derived from renewably resourced lysinol

Disclosed are salt compositions of lysinol and dicarboxylic acids; and lysinol derived polymers including polyamide, polyimide, polyurea, cross-linked polyurea comprising urethane linkages, polyurea foams, cross-linked polyurea foams, and lysinol-epoxy thermoset.

Method for producing a rigid polyurethane foam

The present invention relates to a process for the production of a rigid polyurethane foam or rigid polyisocyanurate foam, comprising the reaction of at least one polyisocyanate and of a polyol composition (PZ), where the polyol composition (PZ) comprises at least one compound having at least two hydrogen atoms reactive toward isocyanate groups and at least one compound (I) selected from the group consisting of dicarboxylic diesters of dicarboxylic acids having from 2 to 18 C atoms and tricarboxylic triesters of tricarboxylic acids having from 3 to 18 C atoms, where at least one blowing agent is used during the reaction. The present invention further relates to rigid polyurethane foams or rigid polyisocyanurate foams obtainable or obtained by such a process, and also to a polyol composition (PZ) at least comprising one compound having at least two hydrogen atoms reactive toward isocyanate groups and at least one compound (I) selected from the group consisting of dicarboxylic diesters of dicarboxylic acids having from 2 to 18 C atoms and tricarboxylic triesters of tricarboxylic acids having from 3 to 18 C atoms. The present invention also relates to the use of such a polyol composition (PZ) for the production of rigid polyurethane foams or rigid polyisocyanurate foams, and also to the use of a rigid polyurethane foam or rigid polyisocyanurate foam of the invention as, or for the production of, insulation materials, preferably insulation sheets, sandwich elements, hot-water tanks, boilers, coolers, insulation foams, refrigerators or freezers.

Polyurethane Foam In Foundation Footings For Load-Bearing Structures

Foundation footing system for a load-bearing structure comprising a hole in the ground and a post in the hole extending above the hole. A gap present between the sides of the post and the sides of the hole contains a cured, hydrophobic, closed-cell, polyurethane foam to firmly hold the post in place and protect the post from moisture. Alternatively, a foundation footing system for a load-bearing structure comprising a hole in the ground filled with a cured, hydrophobic, closed-cell, polyurethane foam and a post place on and connected to the top of the foam.

Rigid polyurethane resin for cutting work

The present invention aims to provide a rigid polyurethane resin for cutting, which has high heat resistance, no scorching, and reduced expansion due to absorption of moisture in the air. The rigid polyurethane resin-forming composition (P) for cutting of the present invention includes: a polyol component (A); an isocyanate component (B); an inorganic filler (C); and a dehydrating agent (D). The polyol component (A) includes: 45 to 99% by weight of a polyphenol (j) alkylene oxide adduct (a), the polyphenol (j) having k functional groups where k is an integer of 2 or 3; and 1 to 55% by weight of a polyol (b). The polyphenol (j) alkylene oxide adduct (a) includes a total of not more than 39% by weight of a polyphenol (j) alkylene oxide adduct (ak) with at most k moles of alkylene oxide, based on 100% by weight of the polyphenol (j) alkylene oxide adduct (a), and has a hydroxyl value of 100 to 295 mg KOH/g. The polyol (b) is a multi-functional aliphatic or alicyclic polyol having 3 to 8 functional groups and has a hydroxyl value of 160 to 700 mg KOH/g. The weight of the oxyethylene groups included in the polyol component (A) is not more than 10% by weight in 100% by weight of the polyol component (A).

Rigid polyurethane foams with uniform cell size distribution and homogeneous open-cell content

The present invention relates to predominantly open-cell, cold-deformable, rigid polyurethane foams which possess a uniform cell structure with similar cell sizes and similar physical properties, more particularly a similar open-cell content. These foams are suitable for producing automotive interior trim, more particularly roof linings and pillar trim.

Use of z-hfo-1,1,1,4,4,4-hexafluoro-2-butene in high temperature foaming application

The present invention provides a process comprising reacting polyisocyanate with active hydrogen-containing compound in the presence of Z-1,1,1,4,4,4-hexafluoro-2-butene at a temperature of at least 135° F. (57.2° C.) or a temperature of 135° F. (57.2° C.) to 150° F. (65.6° C.) to obtain as a result thereof, foamed reaction product, wherein the thermal conductivity of the foamed reaction product exhibits no appreciable change at any of the foaming temperatures within this range.

LONG TERM IMPROVEMENT OF THERMAL INSULATION VALUES IN RIGID POOLYISOCYANURATE/POLYURETHANE COMPRISING INSULATION FOAMS

Polyisocyanurate (PIR) and/or polyurethane (PUR) comprising insulation foams having significantly improved long term insulation values are disclosed as well as a processing method to fabricate said improved insulation foams and use of the improved insulation foams for thermal insulation. 2. The foam according to claim 1 , wherein the molar % COin the stabilized aged foam is between calculated on the total moles of COand physical blowing agents in the stabilized aged foam.3. The foam according to wherein the amount of residual scavenging compound in the stabilized aged foam is between 0 and 5 wt % calculated on the total weight of the stabilized aged foam.4. The foam according to claim 1 , wherein the molar % COin the stabilized aged foam is between 0 and 27% calculated on the total moles of COand physical blowing agents in the stabilized aged foam claim 1 , and the amount of residual scavenging compounds in the stabilized aged foam is between 0 and 3 wt % calculated on the total weight of the stabilized aged foam.5. The foam according to wherein the gas diffusion tight sealing is selected from a gas barrier polymeric resin layer and wherein at least 90% claim 1 , of the foam surfaces are covered with the gas diffusion tight sealing.6. The foam according to claim 1 , wherein the gas diffusion tight sealing is selected from metal foil and wherein 50-95% of the foam surfaces are covered with the gas diffusion tight sealing.7. The foam according to claim 1 , wherein the blowing agents comprise HFOs blowing agents and/or HCFOs blowing agents and/or hydrocarbon blowing having a lambda gas value ≤12 mW/m·K at 10° C. and mixtures thereof.8. The foam according to claim 1 , wherein the blowing agents is selected from the group consisting of cis 1 claim 1 ,1 claim 1 ,1 claim 1 ,4 claim 1 ,4 claim 1 ,4-hexafluorobut-2-ene claim 1 , and/or trans 1-chloro-3 claim 1 ,3 claim 1 ,3-trifluoropropene claim 1 , or combinations thereof.9. The foam according to claim 1 , wherein the ...

RIGID FOAM WITH IMPROVED INSULATING POWER

A rigid foam or composition allowing a rigid foam to be obtained made from polyurethane and/or polyisocyanurate. The rigid foam or composition includes polyols selected from polyester polyols and polyether polyols; the polyols include: 5 to 50% of a polyester polyol A by weight relative to the total weight of the polyols; and a polyol B selected from polyester polyols B and polyether polyols B. The polyester polyol A is of general formula Rx-Ry-Z-Ry′-Rx′ in which Z is a C3 to C8 alcohol sugar chosen from glycerol, sorbitol, erythritol, xylitol, araditol, ribitol, dulcitol, mannitol and volemitol. Ry and Ry′ are diesters of formula —OOC—Cn-COO— in which n is between 2 and 34, and Rx and Rx′ are identical or different C2 to C12 monoalcohols. 115-. (canceled)16. A rigid foam or composition allowing a rigid foam to be obtained made from polyurethane and/or polyisocyanurate , said foam or composition comprising polyols selected from polyester polyols and polyether polyols; said polyols comprising:from 5 to 50% of a polyester polyol A by weight relative to the total weight of the polyols; and a polyol B selected from polyester polyols B and polyether polyols B;{'sub': 'n', 'said polyester polyol A being of general formula Rx-Ry-Z-Ry′-Rx′ wherein, Z is a C3 to C8 alcohol sugar selected from glycerol, sorbitol, erythritol, xylitol, araditol, ribitol, dulcitol, mannitol and volemitol, Ry and Ry′ are diesters of formula —OOC—C—COO— with n comprised between 2 and 34, and Rx and Rx′ are identical or different C2 to C12 monoalcohols.'}17. The rigid foam or composition allowing a rigid foam to be obtained according to claim 16 , wherein the mass ratio of polyester polyol A over the polyol B is comprised between 5/95 and 50/50.18. The rigid foam or composition allowing a rigid foam to be obtained according to claim 16 , wherein said polyester polyol A being obtained by:a first polycondensation (a) of a C3 to C8 alcohol sugar Z, selected from glycerol, sorbitol, erythritol, xylitol ...

Curable resin composition

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

Polyester polyols from recycled polymers and waste streams

The present invention relates to polyester polyols made from aromatic polyacid sources such as thermoplastic polyesters. The polyols can be made by heating a thermoplastic polyester such as virgin polyethylene terephthalate, recycled polyethylene terephthalate, or mixtures thereof, with a glycol to give a digested intermediate which is then reacted with a digestible polymer, which can be obtained from various recycle waste streams. The polyester polyols comprise a glycol-digested polyacid source and a further digestible polymer. The polyester polyols provide a sustainable alternative to petrochemical or biochemical based polyester polyols.

Process for preparing polyether polyol using dmc catalyst and continuous addition of starter

Polyether polyols are made by a process that includes a continuous addition of starter and alkylene oxide. The feed of starter is discontinued when 80 to 95% of the alkylene oxide has been fed to the reactor. This process produces a product with a narrow molecular weight distribution.

High temperature-resistant polyisocyanurate foams

The present invention relates to a polyisocyanurate foam obtainable by reacting a mixture in the presence of a catalyst and optionally an initiator, comprising or consisting of: A) a polyisocyanate component comprising at least one aliphatic polyisocyanate; B) a component reactive to isocyanate comprising at least one polyol and/or an alcohol and also optionally an amine; C) at least one blowing agent; D) at least one foam stabilizer and E) optionally at least one additive, characterized in that the mixture, upon accompanying use of an isocyanate-reactive component (polyol, alcohol, amine), has an index of at least 200. The invention further relates to a process for producing such a foam and use thereof as an insulating material, as a construction element, as facade insulation, as reactor insulation, as battery insulation, as superheated steam insulation, as insulation for a still, or as weather-resistant insulating material.

Polyether-polysiloxane block copolymer composition, surfactant and foam stabilizer including same, polyurethane foam-forming composition, cosmetic, and preparation method thereof

A polyether-polysiloxane block copolymer composition is disclosed. The copolymer composition comprises (A) a polyether-polysiloxane block copolymer having in a molecule structural units as expressed by General Formula (1) below: where a terminal group thereof is an alkenyl group or the like bonded to a polyether portion. The copolymer composition further comprises (B) a liquid monool organic compound, which is (B1) a glycol ether compound having a low degree of polymerization, a terminal hydrogen substituted with a hydrocarbon group, and a secondary alcoholic hydroxyl group provided on another terminal, or (B2) a higher alcohol compound having a branched alkyl group with 12 or more carbon atoms. The copolymer composition generally does not contain a dimethyl polysiloxane at more than the mass of component (A). A manufacturing method, foam stabilizer or the like containing the copolymer composition, and a polyurethane foam are also disclosed.

Method of reducing odors of lipid-based polyols

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

New polymers derived from renewably resourced lysinol

Disclosed are salt compositions of lysinol and dicarboxylic acids; and lysinol derived polymers including polyamide, polyimide, polyurea, cross-linked polyurea comprising urethane linkages, polyurea foams, cross-linked polyurea foams, and lysinol-epoxy thermoset.

POLYURETHANE PRODUCT WITH SULFUR-CONTAINING POLYESTER POLYOL

A reaction system for forming a step-growth polymerized sulfur-containing polyester polyol includes at least one sulfur-containing component selected from the group of a sulfur-containing polyol or a sulfur-containing polycarboxylic acid, an amount of the at least one sulfur-containing component being from 1 wt % to 60 wt %, at least one aromatic component selected from the group of an aromatic multi-functional ester, an aromatic multi-functional carboxylic acid, and an aromatic anhydride, an amount of the at least one aromatic component being from 1 wt % to 60 wt %, at least one simple polyol that excludes sulfur and is different from the sulfur containing polyol, an amount of the at least one simple polyol being from 0 wt % to 60 wt %, and at least one polymerization catalyst. The reaction system for forming the sulfur-containing polyester polyol has a sulfur content that is from 2 wt % to 20 wt %. 1. A reaction system for forming a step-growth polymerized sulfur-containing polyester polyol , the reaction system comprising:at least one sulfur-containing component selected from the group of a sulfur-containing polyol and a sulfur-containing polycarboxylic acid, an amount of the at least one sulfur-containing component being from 1 wt % to 65 wt %, based on a total weight of the reaction system;at least one aromatic component selected from the group of an aromatic multi-functional ester, an aromatic multi-functional carboxylic acid, and an aromatic anhydride, an amount of the at least one aromatic component being from 1 wt % to 60 wt %, based on the total weight of the reaction system;at least one simple polyol that excludes sulfur and is different from the sulfur-containing polyol, an amount of the at least one simple polyol being from 0 wt % to 60 wt %, based on a total weight of the reaction system; andat least one polymerization catalyst,the reaction system for forming the sulfur-containing polyester polyol having a sulfur content that is from 2 wt % to 20 wt %, ...

Non-migratory photoactive diols for fluorescent polymers

A polyurethane foam includes a fluorescent repeating unit. The authenticity of a polyurethane foam may be determined by irradiating the foam with a UV light and determining if there is a fluorescent emission.

Polyurethane insulation foam composition comprising a stabilizing compound

A polyurethane insulation foam composition is disclosed herein. The polyurethane insulation foam comprises: (i) an aromatic isocyanate compound; (ii) an isocyanate reactive compound; (iii) water; (iv) a tertiary amine compound; (v) a hydrophilic carboxylic acid compound; (vi) a halogenated olefin compound; (vii) a stabilizing compound, and (vii) optionally, other additives.

METHOD FOR PREPARING A RIGID POLYURETHANE FOAM

The present invention relates to a method for preparing a rigid polyurethane foam using a non-continuous production process, the rigid polyurethane foam prepared therefrom, and use thereof. 1. A non-continuous method for preparing a rigid polyurethane foam , comprising A) a polyisocyanate;', 'B) an isocyanate-reactive component which comprises a polyether polyol component having a functionality of 2.0 to 8.0, a hydroxyl number of 50 to 550 mg KOH/g (measured according to ISO14900-2017);', 'wherein the angle of the mold relative to the horizontal plane during foaming of the polyurethane reaction system is ≥5 degrees; and', 'the mold has at least one sprue gate located below ½ of the height direction of the mold near the horizontal plane., 'injecting a polyurethane reaction system comprising the following components into a mold for preparing the rigid polyurethane foam2. The method according to claim 1 , wherein said polyether polyol component comprises at least one of:B1) a polyether polyol having a functionality ≥4, a hydroxyl number <400 mg KOH/g (measured according to ISO14900-2017), in an amount of 5 to 45 pbw, based on 100 pbw of the polyether polyol component;B2) a polyether polyol having a functionality >4, a hydroxyl number >400 mg KOH/g (measured according to ISO14900-2017), in an amount of 20 to 70 pbw, based on 100 pbw of the polyether polyol component;B3) a polyether polyol started with an aromatic amine, having a functionality of 3.5 to 4.2, a hydroxyl number <400 mg KOH/g (measured according to ISO14900-2017), a viscosity <30000 mPa·s at 25° C. (measured according to ISO3219-1993), in an amount of 5 to 35 pbw, based on 100 pbw of the polyether polyol component; andB4) a polyether polyol having a functionality ≤3, a hydroxyl number <400 mg KOH/g (measured according to ISO14900-2017), in an amount of 0 to 15 pbw, preferably 3 to 10 pbw, based on 100 pbw of the polyether polyol component.3. The method according to claim 1 , wherein B) said isocyanate- ...

RIGID POLYISOCYANURATE AND POLYURETHANE FOAMS AND METHODS FOR PREPARING THE SAME

A composition for preparing polyisocyanurate and polyurethane foams is provided, comprising A) an isocyanate-reactive component, B) a polyisocyanate component and C) a branched siloxane comprising at least three trimethylsiloxy groups. A method for preparing the polyisocyanurate and polyurethane foams, and foams prepared thereby are also provided. 2. The composition according to claim 1 , wherein the siloxane comprises from 3 to 50 trimethylsiloxy groups and 3 to 50 silicon atoms; at most two of R claim 1 , R claim 1 , Rand Ris C-Calkyl claim 1 , or at most one of R claim 1 , R claim 1 , Rand Ris C-Calkyl claim 1 , or none of R claim 1 , R claim 1 , Rand Ris C-Calkyl; and the C-Calkyl comprises methyl claim 1 , ethyl claim 1 , n-propyl claim 1 , i-propyl claim 1 , n-butyl claim 1 , i-butyl claim 1 , sec-butyl and t-butyl.4. The composition according to claim 1 , wherein the polyol is selected from the group consisting of C2-C16 aliphatic polyhydric alcohols comprising at least two hydroxy groups claim 1 , C6-C15 cycloaliphatic or aromatic polyhydric alcohols comprising at least two hydroxy groups claim 1 , C7-C15 araliphatic polyhydric alcohols comprising at least two hydroxy groups claim 1 , polyester polyols having a molecular weight from 100 to 10 claim 1 ,000 claim 1 , polyether polyols having a molecular weight from 100 to 4 claim 1 ,000 claim 1 , and combinations thereof.5. The composition according to claim 1 , wherein the compounds comprising at least two isocyanate groups are selected from the group consisting of C-Caliphatic polyisocyanates comprising at least two isocyanate groups claim 1 , C-Ccycloaliphatic or aromatic polyisocyanates comprising at least two isocyanate groups claim 1 , C-Caraliphatic polyisocyanates comprising at least two isocyanate groups claim 1 , and isocyanate prepolymers obtained by reacting the C-Caliphatic polyisocyanates comprising at least two isocyanate groups claim 1 , C-Ccycloaliphatic or aromatic polyisocyanates comprising ...

Resin premix composition, rigid polyurethane foaming composition and rigid polyurethane foam

An object of the invention is to provide resin premix compositions which include a polyol and a hydrocarbon foaming agent while still exhibiting good storage stability, the polyol being obtained without the use of ring-opening polymerization reaction of a cyclic ether. The resin premix composition of the invention includes at least a polyol and a hydrocarbon foaming agent, the polyol including a polyether ester polyol (A) obtained by reacting a polyether polyol with a fatty acid and/or a fatty acid ester, the polyether polyol being obtained by condensing a polyhydric alcohol including 50 mol % or more of a trihydric or higher alcohol.

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

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

Process for producing rigid polyurethane (pur) and polyurethane/ polyisocyanurate (pur/pir) foams

The invention relates to a process for producing rigid polyurethane (PUR) and polyurethane/polyisocyanurate (PUR/PIR) foams, comprising the steps of i) producing a reaction mixture containing the components A) an isocyanate-reactive component, B) a polyisocyanate component, and C) a blowing agent, and ii) applying the reaction mixture by using a system comprising at least one casting device. The casting device ( 100 ) having: a supply port ( 12 ) for feeding the reaction mixture ( 10 ), at least one discharge gap ( 13 ) extending in a transverse direction (Q) for the discharge of the reaction mixture ( 10 ), two gap-forming plates ( 14 ) arranged opposite one another, a gap space ( 15 ) extending between the gap-forming plates ( 14 ) above the discharge gap ( 13 ) in a height direction (H), wherein the reaction mixture can be introduced into the gap space ( 15 ), distributed over the length of the supply duct ( 16 ).

Plug for a Void, System and Method

A plug for a void in a mine to divert water having a rigid closed cell foam which fills the void. The rigid closed cell foam having a plurality of tremie pipes disposed within the foam. The tremie pipes distributed throughout the void. The tremie pipes are positioned in the foam so the pipes are staggered in length vertically with respect to various heights in the void, and the tremie pipes are positioned in the foam every 4′ to 6′ horizontally with respect to the void. Each tremie pipe has a mixing stick. A method for diverting water from a void in a mine.

Vegetable oil based polyols and polyurethanes made therefrom

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

Polyvinylchloride/polyurethane hybrid foams with improved burn properties and reduced after-glow

The present invention provides a rigid polyurethane foam comprising the reaction product, at an isocyanate index of from about 90 to about 400, of a polyisocyanate and a polyol component comprising, about 20 wt. % to about 80 wt. %, based on the weight of the polyol component, of a double metal cyamide (DMC)-catalyzed polyether polyol having a number average molecular weight of greater than about 1,000 Daltons (Da), about 80 wt. % to about 20 wt. %, based on the weight of the polyol component, of a sucrose-based polyol having a functionality of from about 2.5 to about 6 and a number average molecular weight of from about 350 Da to less than about 1,000 Da, and about 0 wt. % to about 40 wt. %, based on the weight of the polyol component, of a low molecular weight organic compound having a number average molecular weight of less than about 600 Da in the presence of water, polyvinylchloride (PVC) particles having a diameter of from about 0.1 microns to about 200 microns, glass beads having a diameter of from about 40 microns to about 400 microns, and about 1 wt. % to about 30 wt. %, based on the weight of the polyol component, of expanded graphite, optionally, in the presence of at least one of carbon dioxide, surfactants, flame retardants other than expanded graphite, crosslinking agents, pigments and catalysts, wherein the rigid polyurethane foam with a density of about 10 pcf to about 25 pcf has a heat sag measured at 102 mm overhang at 121° C. and one hour of less than about 5 mm and an average after-glow time of less than about 35 seconds. The inventive rigid polyurethane foams exhibit improved burn properties and reduced after-glow while maintaining improved heat sag performance over commercial materials.

Fire resistant foam and foam products, method and dispersions for making same

A synthetic polymer foam is produced which incorporates fine particles of expandable graphite which surprisingly impart excellent fire resistant properties to the foam, particularly to foam made with a non-halogenated hydrocarbon as the primary blowing agent. For best results, the foam is produced through mixing the constituent materials, including the expandable graphite using a screw extruder. The foam can also be produced by creating a graphite/polyol or graphite/isocyanate dispersion in an extruder then mixing the remaining components in a conventional batch mixing or high pressure spraying process. Alternatively, conventional mixing can be used for the entire process, but use of a screw extruder in whole or in part is preferred.

Polyurethane based foam containing exfoliating graphite and the process for the preparation thereof

The present invention relates to a process for the production of rigid polyurethane foams containing exfoliating graphite. In a preferred embodiment the foams of the present invention pass severe flame retardant tests such as the M1 burning test. Foams which pass the M1 burning test are produced by reacting a polyisocyanate, a polyol, a halogenated polyol, in the presence of a blowing agent, a catalyst, exfoliating graphite and additional flame retardants selected from phosphonate esters, phosphate esters, halogenated phosphate ester or a combination thereof.

Low emission polyurethane polymers made with autocatalytic polyols

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

Procedure for the preparation of a polyurethane-based nanoporous coating

Procedimiento para la preparación de una espuma nanoporosa en el que: se proporciona un componente monomérico (A), que comprende un isocianato polifuncional (A1) y un disolvente (C), y se pone en contacto el componente monomérico (A) con vapor de agua, en el que el componente monomérico (A), antes de ponerse en contacto con vapor de agua, se aplica sobre un soporte (B). Process for the preparation of a nanoporous foam in which: a monomer component (A) is provided, comprising a polyfunctional isocyanate (A1) and a solvent (C), and the monomer component (A) is contacted with steam of water, in which the monomer component (A), before contacting with water vapor, is applied on a support (B).

Isocyanatfrie schäumbare mischungen mit hoher härtungsgeschwindigkeit

Gegenstand der Erfindung sind isocyanatfreie schäumbare Mischungen, enthalten (A) isocyanatfreie, alkoxysilanterminierte Prepolymere (A) welche über Silanterminierungen der allgemeinen Formel [1], verfügen, in der X und Y ein Sauerstoffatom, eine N-R3/Gruppe oder ein Schwefelatom, R1 einen Alkyl-, Alkenyl- oder Arylrest mit 1-10 Kohlenstoffatomen, R2 einen Alkylrest mit 1/2 Kohlenstoffatomen oder einen - Oxaalkyl-alkylrest mit insgesamt 2/10 Kohlenstoffatomen, R3 ein Wasserstoffatom, einen Alkyl-, Cycloalkyl, -Alkenyl- oder Arylrest mit 1/10 Kohlenstoffatomen oder eine -CH2/ SiR1z(OR2)¿3-z-Gruppe und, z die Werte 0 oder 1 bedeuten, mit der Massgabe, dass mindestens eine der beiden Gruppen X oder Y eine NH-Funktion darstellt und (B) Treibmittel.

PRODUCTION OF RIGID POLYURETHANE FOAM

What is described is a composition for production of rigid polyurethane foam, comprising at least one isocyanate component, a polyol component, optionally a foam stabilizer, optionally blowing agent, wherein the composition contains at least one catalyst that catalyses the formation of a urethane or isocyanurate bond, wherein the catalyst comprises salts of amino acid derivatives. 1. A composition for production of rigid polyurethane foam , comprising at least one isocyanate component , a polyol component , optionally a foam stabilizer , optionally blowing agent ,wherein the composition contains at least one catalyst that catalyses the formation of a urethane or isocyanurate bond,wherein the catalyst comprises salts of amino acid derivatives.2. The composition according to claim 1 , wherein the amino acid derivatives are obtainable by reacting amino acids and aromatic carboxylic acids claim 1 , aromatic carboxylic esters claim 1 , aromatic carbonyl halides and/or aromatic carboxylic anhydrides.4. The composition according to claim 3 , wherein Ris phenyl or alkylphenyl claim 3 , or is a radical that derives from phthalic acid claim 3 , isophthalic acid claim 3 , terephthalic acid or pyromellitic acid.6. The composition according to claim 1 , wherein the total proportion by mass of salts of amino acid derivatives present claim 1 , based on the resulting polyurethane foam claim 1 , is from 0.01% to 10% by weight.7. A process for producing rigid polyurethane foam claim 1 , by reacting one or more polyol components with one or more isocyanate components claim 1 , characterized in that the reaction is effected in the presence of a catalyst that catalyses the formation of a urethane or isocyanurate bond claim 1 ,{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'wherein the catalyst comprises salts of amino acid derivatives that preferably conform to the specifications of .'}8. The process according to claim 7 , wherein the salts of amino acid derivatives are supplied to ...

HCFO-CONTAINING ISOCYANATE-REACTIVE COMPOSITIONS, RELATED FOAM-FORMING COMPOSITIONS AND POLYURETHANE FOAMS

Disclosed are HCFO-containing isocyanate-reactive compositions, polyurethane foam-forming compositions containing such isocyanate-reactive compositions, rigid polyurethane foams made using such polyurethane foam-forming compositions, and methods for producing such foams, including use of such foams as insulation in the construction of refrigerated storage devices. The isocyanate-reactive composition can exhibit a long shelf life, be shelf-stable, and produce a foam with good thermal insulation properties. 1. An isocyanate-reactive composition comprising: (1) 20 to 50% by weight of a saccharide initiated polyether polyol having an OH number of 200 to 600 mg KOH/g and a functionality of 4 to 6;', '(2) 40 to 55% by weight of an aromatic polyether polyol having an OH number of 170 to 600 mg KOH/g and a functionality of 3 to 5; and', '(3) 10 to 25% by weight of an aromatic polyester polyol having an OH number of 150 to 410 mg KOH/g and a functionality of 1.5 to 3;, '(a) a polyol blend comprising, based on the total weight of the polyol blend (1) a physical blowing agent comprising at least 10% by weight, based on the total weight of the isocyanate-reactive composition, of a hydrochlorofluoroolefin; and', '(2) a carbon dioxide generating chemical blowing agent; and, '(b) a blowing agent composition comprising (1) a morpholine;', '(2) an imidazole; and', '(3) an organometallic compound,', 'wherein the morpholine is present in an amount of 1.5 to 2.5 parts by weight per 1 part by weight of the combination of imidazole and organometallic compound and the imidazole and organometallic compound are present in a weight ratio of 1.5 to 2.5:1., '(c) a catalyst composition comprising2. (canceled)3. The isocyanate-reactive composition of claim 1 , wherein the aromatic polyether polyol and the saccharide-initiated polyether polyol are present in the polyol blend in a weight ratio of 1:1 to 2:1.4. The isocyanate-reactive composition of claim 1 , wherein the saccharide-initiated ...

Polyurethane rigid foam

A foam-forming composition for producing a rigid polyurethane foam including: (a) at least one isocyanate component; and (b) at least one isocyanate-reactive composition including: (bi) a rigid polyol compound; and (bii) a flexible polyol compound; (c) a catalyst package including at least one latent gelling catalyst; and (d) at least one blowing agent.

Poliisocianatos,processo para sua preparacao e emprego

Isocyanate-based polymer foam and process for production thereof

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

Espuma de poliisocianurato

La presente invención se refiere a una espuma de poliisocianurato, que comprende el producto de reacción, en presencia de un agente de soplado y un catalizador de (a) un quasi-prepolímero terminado en un grupo isocianato, preparado mediante la reacción de un poliisocianato orgánico con un compuesto orgánico que tiene por lo menos dos átomos de hidrógeno activos, (b) una cantidad menor de un compomente de poliol.

Process for producing isocyanate-based foam construction boards

A process for producing a polyurethane or polyisocyanurate construction board, the process comprising: providing an A-side reactant stream that includes an isocyanate-containing compound; providing a B-side reactant stream that includes a polyol, wherein the B-side reactant stream includes a blowing agent mixture including isopentane and a blowing agent additive that has a Hansen Solubility Parameter (δ t ) that is greater than 15 MPa 0.5 ; and mixing the A-side reactant stream with the B-side reactant stream to produce a reaction mixture.

Deoxybenzoin-derived anti-flammable polymers

The invention provides novel flame-retardant polymers and materials, their synthesis and use. More particularly, the flame-retardant polymers are deoxybenzoin-derived polymers.

METHOD FOR TREATING POLYPROPYLENE ETHER POLYOLS AND POLY-1,2-BUTYLENE ETHER POLYOLS

저점도 포스페이트 폴리올

폴리에스테르 폴리올, 포스페이트 폴리올을 포함하는 난연제, 발포제, 촉매, 계면활성제, 및 난연성 방향족 이소시아네이트를 포함하는 신규한 포스페이트 폴리올 배합물이 기술된다. 추가의 실시양태는 인 화합물, 예컨대 포스페이트, 포스페이트 에스테르, 또는 알킬 포스페이트, 예컨대 트리에틸 포스페이트를 포함한다.

一种可膨胀石墨改性高阻燃聚氨酯硬泡的制备方法

本发明公开了一种可膨胀石墨改性高阻燃聚氨酯硬泡的制备方法，该方法首先配制白料：将聚酯多元醇、聚醚多元醇、结构型阻燃聚醚多元醇、匀泡剂、液态阻燃剂、起发催化剂、凝胶型催化剂、三聚催化剂和水混合均匀，再加入石墨，混合均匀后加入发泡剂组成白料；将配制得到的白料与黑料按照质量比1：1.5～1.8混合，搅拌后注入恒温模具中发泡熟化，得到聚氨酯硬泡；其中，所述的黑料为多异氰酸酯。本发明提高了聚氨酯硬泡的氧指数，燃烧性能可达到不燃级，力学强度和尺寸稳定性好，导热系数低；与市场上同类产品相比有很大的价格优势，并且易于加工成型；添加的阻燃剂不挥发，不易析出，毒性低，阻燃效果持久。