ПРИМЕНЕНИЕ КАРБОКСИЛАТСОДЕРЖАЩИХ ПОЛИМЕРОВ В КАЧЕСТВЕ ДОБАВОК В КЕРАМИЧЕСКИХ МАССАХ

Изобретение относится к применению гомополимеров или сополимеров (мет)акриловой кислоты или сополимеров моноолефинов с 3-40 атомами углерода с ангидридами дикарбоновых кислот с этиленовой ненасыщенностью с 4-6 атомами углерода в качестве добавок в керамических массах, прежде всего в суглинке и глине, предназначенных для изготовления строительной керамики, такой как строительные кирпичи и кровельная черепица, а также к керамическим массам, содержащим указанные добавки. Техническим результатом изобретения является повышение прочности изделий. Керамические массы, содержащие суглинок или глину и от 0,01 до 5 мас.% в расчете на содержание твердых веществ суглинка или глины (со)полимеров (мет)акриловой кислоты, содержащих: основную структуру поли(мет)акриловой кислоты, и при необходимости, от 0,4 до 2,4 мас.% соединенных с основной структурой и/или встроенных в основную структуру структурных единиц изобутилена или, при необходимости, от 5 до 25 мас.% соединенных с основной структурой и/или встроенных ...

АМФИФИЛЬНЫЕ СОПОЛИМЕРЫ И СПОСОБ ИХ ПОЛУЧЕНИЯ

Изобретение относится к области органических высокомолекулярных соединений, а именно к новым биосовместимым амфифильным статистическим сополимерам, пригодным для создания форм лекарственных препаратов, биологически активных веществ и солюбилизации плохорастворимых веществ, а также к одностадийному способу получения таких сополимеров. Амфифильный статистический сополимер содержит, по меньшей мере, два различных мономера, выбранных из группы, включающей N-винилпирролидон, N-изопропилакриламид, N-(2-гидроксипропил)метакриламид, этиленамин, 2-аллилоксибензальдегид, акриламид, акриловую кислоту и ее эфиры, метакриловую кислоту и ее эфиры, N-диалкилакриламид, и включает группу общего строениягде z представляет собой целое число от 8 до 19; Х представляет собой NH, NHCl. Среднечисленная молекулярная масса сополимера варьируется в пределах от 1 до 30 kDa. Способ получения указанного сополимера заключается в том, что проводят радикальную сополимеризацию мономеров в органическом растворителе в присутствии ...

КАТАЛИТИЧЕСКАЯ КОНВЕРСИЯ МОЛОЧНОЙ КИСЛОТЫ В АКРИЛОВУЮ КИСЛОТУ

В данной заявке описана каталитическая дегидратация молочной кислоты в акриловую кислоту, отличающаяся высокой конверсией молочной кислоты, высокой селективностью получения акриловой кислоты, высоким выходом акриловой кислоты и соответственно низкой селективностью получения и мольными выходами нежелательных побочных продуктов. Смешанный фосфатный катализатор для конверсии молочной кислоты в акриловую кислоту содержит, по меньшей мере, две различные фосфатные соли, выбранные из группы, состоящей из формул (I), (II), (III) и (IV):где Z представляет собой металл I группы, и где в каждой из формул (II)-(IV) каждый X независимо представляет собой металл I группы или II группы, при следующих условиях:в формуле (II), если X представляет собой металл I группы, то а означает 0, и если X представляет собой металл II группы, то а означает 1;в формуле (III), если X представляет собой металл I группы, то b означает 1, и если X представляет собой металл II группы, то b означает 0; и,в формуле (IV), если ...

УЛУЧШЕННЫЕ ГИДРОФИЛЬНЫЕ КОМПОЗИЦИИ

Настоящее изобретение относится к способу образования сшитого электронно-активного гидрофильного сополимера, смеси сомономеров и суперконденсатору. Указанный способ включает стадии: a. смешивание электронно-активного по своей природе материала и по меньшей мере одного соединения формулы (I) с водой для образования промежуточной смеси;b. добавление по меньшей мере одного гидрофильного мономера, по меньшей мере одного гидрофобного мономера и по меньшей мере одного сшивающего агента к промежуточной смеси для образования смеси сомономеров; c. полимеризация смеси сомономеров. Соединение формулы (I) представляет собой соединение, в котором R1и R2представляют собой независимо необязательно замещенный С1-С6алкил, где заместитель выбран из одного или более гидроксила, галогена, NH2, NO2, СН3О, CO2H, СОООН, NR, NRR', NHCOR и RSH, где R и R' представляют собой С1-С6алкил, X-представляет собой анион. Электронно-активный по своей природе материал выбран из полиэтилендиокситиофен:полистиролсульфоната ...

ПОЛИМЕРЫ С УГЛЕВОДНЫМИ БОКОВЫМИ ГРУППАМИ И ИХ ПРИМЕНЕНИЕ

Изобретение относится к полимерам с углеводными боковыми группами. Описан водорастворимый или способный диспергироваться в воде сополимер. Сополимер содержит включенные в полимер структурные единицы. Структурные единицы включают по меньшей мере один этилен ненасыщенный мономер с углеводной боковой группой и по меньшей мере один отличающийся от (мет)акриламида гидрофильный этиленовый ненасыщенный мономер. Массовая доля этиленовых ненасыщенных мономеров с боковой углеводной группой составляет от 5 до 95% масс. Этиленовый ненасыщенный мономер с боковой углеводной группой соответствует формуле (Iа). Описано также применение сополимера в качестве ингибиторов появления серого оттенка активного вещества в моющих средствах для текстиля и в качестве антимикробного покрытия. Описана композиция моющего средства для текстиля. Композиция содержит 50-60% масс. ПАВ и сополимер в эффективном количестве в качестве способного удалять загрязнения активного вещества или ингибирующего появление серого оттенка ...

ПОЛИМЕРНАЯ КОМПОЗИЦИЯ ДЛЯ СШИТЫХ ИЗДЕЛИЙ

Изобретение относится к способу получения сшитого изделия. Способ включает стадию полимеризации этилена, необязательно, с одним или более альфа-олефиновым(и) сомономером(ами) в присутствии катализатора Циглера-Натта, формование из указанного полимера изделия и его последующее сшивание. При этом полученный на стадии полимеризации полимер этилена содержит двойные связи углерод-углерод/1000 атомов углерода в диапазоне от более чем 0,2 до менее 5,0 двойных связей, характеризуется молекулярно-массовым распределением (MWD) в диапазоне от 3,3 до 15 и не содержит длинноцепочечных разветвлений. Указанный полимер выбирают из каучуков (РОЕ), термопластов (POP) или сополимеров этилена очень низкой плотности (VLDPE), которые имеют диапазон плотности от 855 до 909 кг/м, или линейных сополимеров этилена низкой плотности (LLDPE) с плотностью от 910 до 930 кг/м, или сополимеров этилена средней плотности (MDPE) с плотностью от 931 до 945 кг/м. Полученные сшитые изделия имеют хорошие механические свойства ...

СПОСОБ ПОЛУЧЕНИЯ АКРИЛОВОЙ КИСЛОТЫ

Изобретение относится к усовершенствованному способу получения акриловой кислоты, в соответствии с которым путем осуществляемого при повышенной температуре гетерогенно катализируемого газофазного частичного окисления молекулярным кислородом по меньшей мере одного соответствующего исходного соединения с тремя атомами углерода на находящихся в твердом агрегатном состоянии катализаторах получают газовую смесь продуктов, содержащую акриловую кислоту, водяной пар и побочные компоненты, температуру указанной смеси при необходимости снижают путем прямого и/или косвенного охлаждения, после чего указанную смесь направляют в оснащенную эффективно разделяющими элементами конденсационную колонну, вдоль которой она самостоятельно поднимается при одновременном протекании фракционной конденсации, причем через первый боковой отбор, находящийся выше места подачи газовой смеси реакционных продуктов в конденсационную колонну, из конденсационной колонны выводят обедненную водой и побочными компонентами сырую ...

СПОСОБ ПОЛУЧЕНИЯ ВОДНЫХ ДИСПЕРСИЙ ВИНИЛОВЫХ ПОЛИМЕРОВ

Изобретение относится к способу получения водных дисперсий виниловых полимеров. Способ получения водной дисперсии мультифазных частиц гидропластифицируемого винилового полимера включает: (1) первую стадию полимеризации, включающую: (1а) приготовление эмульсии (1А) в воде первой смеси мономеров (1а1), поверхностно-активного вещества (1а2) и водорастворимой неорганической соли (1а3), причем первая смесь мономеров (1а1) содержит: 1) мономеры с функциональной группой карбоновой кислоты, 2) необязательно, сшивающие мономеры, отличные от 1, 3) виниловые мономеры, отличные от 1) и 2), и 4) необязательно, агенты передачи цепи, причем поверхностно-активное вещество (1а2) представляет собой анионное поверхностно-активное вещество на основе серы, содержащее менее 50% масс. этиленоксида, и при этом содержание водорастворимой неорганической соли (1а3) на момент начала полимеризации (1b) составляет от 0,01 до 3 г/кг воды, (1b) эмульсионную полимеризацию полученной эмульсии 1А с получением дисперсии частиц ...

СОПОЛИМЕР, СОДЕРЖАЩИЙ ОКСАЗОЛИНОВЫЕ МОНОМЕРЫ, И ЕГО ПРИМЕНЕНИЕ В КАЧЕСТВЕ СШИВАЮЩЕГО АГЕНТА

Изобретение касается новых сополимеров. Сополимер А, пригодный в качестве сшивающего агента, содержит: a) по меньшей мере один мономер (а), выбранный из группы, состоящей из алкил(мет)акрилатов с 1-12 атомами углерода в алкиле; b) по меньшей мере один этиленненасыщенный мономер (b), который содержит по меньшей мере одну сульфокислотную группу (-SOM); c) по меньшей мере один этиленненасыщенный мономер (с), который содержит по меньшей мере одну оксазолиновую группу; d) необязательно по меньшей мере один дополнительный мономер (а) и/или добавку; причем доля мономеров (b) и (с) в сумме составляет 25 до 49 мас.%, в пересчете на общее количество мономеров в сополимере А, причем в случае сополимера А речь идет о водорастворимом полимере, водорастворимость его включает растворимость в воде по меньшей мере 100 г/л; при этом мономер (b) представляет собой соединение формулы (II):где остатки и индексы имеют следующие значения: Rпредставляет собой Н или метил;Z является двухвалентной соединяющей группой ...

МЕТАЛЛО-ИОНОМЕРНЫЕ ПОЛИМЕРЫ

Заявленная группа изобретений относится к способам полимеризации, включающим стирол/акрилатные полимерные смолы с ионом металла, используемые, например, в органических/неорганических наночастицах из ядра и оболочки, например с оболочкой, содержащей иономер, которые могут быть использованы для получения тонера. Заявленная группа изобретений включает композиционную наночастицу, латекс, содержащий композиционную наночастицу, и изделие, содержащее латекс. Причем композиционная наночастица содержит: ядро, содержащее стирол/акрилатную полимерную смолу ядра, необязательно содержащую металл, и оболочку, содержащую металло-ионную иономерную смолу, при этом металло-ионная иономерная смола, содержащая указанную оболочку, содержит стирол/акрилатный полимер, включающий серебряный акрилатный мономер, который вводят в стирол/акрилатный полимер путем полимеризации. Технический результат заключается в обеспечении композиционных материалов, которые могут быть использованы для получения изделий, таких как ...

КОМПОЗИЦИИ, ИХ ПОЛУЧЕНИЕ И ПРИМЕНЕНИЕ, И ПОДХОДЯЩИЕ КОМПОНЕНТЫ

Предложена композиция для мытья посуды и кухонных принадлежностей, предметов, которые имеют по меньшей мере одну поверхность из стекла и отмываемых изделий из металла, содержащая (A) по меньшей мере одно соединение, выбранное из метилглициндиацетата (MGDA) и его солей, (B) по меньшей мере один привитой сополимер, образованный из (a) по меньшей мере одной основы для прививания, выбранной из полисахаридов, и боковых цепей, получаемых посредством прививания (b) по меньшей мере одной этилен-ненасыщенной монокарбоновой кислоты и (c) по меньшей мере одного соединения общей формулы (I)причем переменные определены следующим образом: Rвыбран из метила, Авыбран из алкилена с 2-4 атомами углерода, Rявляются одинаковыми или разными и выбраны из алкилов с 1-4 атомами углерода, Xвыбран из галогенида, (C) по меньшей мере одно неорганическое пероксидное соединение и (D) по меньшей мере один моющий компонент. Технический результат – создание композиций, обладающих очень хорошим подавлением образования отложений ...

ВЫСОКОМОЛЕКУЛЯРНЫЕ ПОЛИМЕРЫ, СОДЕРЖАЩИЕ БОКОВЫЕ ГРУППЫ САЛИЦИЛОВОЙ КИСЛОТЫ

Изобретение относится к высокомолекулярным полимерам, содержащим боковые группы салициловой кислоты, применяющимся для осветления жидкостей, содержащих красный шлам, полученных в процессе Байера, используемом для извлечения оксида алюминия из бокситной руды. Техническая задача - получение полимеров, повышающих эффективность осаждения суспендированных твердых веществ в жидкостях процесса Байера. Предложен водорасторимый полимер с высокой молекулярной массой, содержащий боковые группы салициловой кислоты и имеющий средневесовую молекулярную массу, по крайней мере, 2000000 дальтон, полученный свободнорадикальной полимеризацией одного или более мономеров, содержащих группы салициловой кислоты, одного или более акрилатных мономеров, выбранных из группы, состоящей из (мет)акриловой кислоты и ее солей и сложных алкиловых эфиров (мет)акриловой кислоты и возможно одного или более полимеризуемых мономеров, выбранных из группы, состоящей из неионных, анионных, катионных и цвиттерионных мономеров, ...

СОПОЛИМЕРЫ НА ОСНОВЕ ИЗОПРЕНОЛА, МОНОЭТИЛЕННЕНАСЫЩЕННЫХ МОНОКАРБОНОВЫХ КИСЛОТ И СУЛЬФОКИСЛОТ, СПОСОБ ИХ ПОЛУЧЕНИЯ И ИХ ПРИМЕНЕНИЕ В КАЧЕСТВЕ ИНГИБИТОРОВ ОБРАЗОВАНИЯ ОТЛОЖЕНИЙ В ВОДОПРОВОДЯЩИХ СИСТЕМАХ

Изобретение относится к сополимерам на основе изопренола. Сополимеры на основе изопренола включают: (a) от 5 до 40 мас.% изопренола, (b) от 5 до 93 мас.% по меньшей мере одной моноэтиленненасыщенной монокарбоновой кислоты с 3-8 атомами углерода, выбранной из акриловой кислоты и метакриловой кислоты, ее ангидрида или ее соли, и (c) от 2 до 90 мас.% одного или нескольких содержащих сульфокислотные группы мономеров, выбранных из 2-акриламидо-2-метил-пропансульфокислоты и аллилсульфокислоты, сополимеры получены путем полимеризации мономеров (а), (b) и (с) в присутствии редоксхимического инициатора и регулятора при температуре от 10 до 80°С, причем редоксхимический инициатор содержит пероксид водорода, соль железа и в качестве восстановителя гидроксиметансульфинат натрия или натрий-2-гидрокси-2-сульфинатоуксусную кислоту. Заявлен также способ получения и разные применения сополимеров. Технический результат – достижение высокого процента ингибирования образования отложений в водопроводящих системах ...

УЛУЧШЕННАЯ КОМПОЗИЦИЯ

Изобретение относится к композиции средства для автоматических посудомоечных машин, содержащая (i) полиэтиленимин, и/или его соль, или его производное и (ii) по меньшей мере один амфотерный полимер, который представляет собой: кватернизованный аммонийный сополимер акриламида и акриловой кислоты; или водорастворимый или диспергируемый в воде сополимер, включающий по меньшей мере один аминно-функциональный мономер, по меньшей мере один гидрофильный мономер кислотной природы и, необязательно, сополимер дополнительно включает по меньшей мере один гидрофильный мономер с этиленовой ненасыщенностью и с нейтральным зарядом. Технический результат – обеспечение хорошей ополаскиваемости посуды. 2 н. и 19 з.п. ф-лы, 1 табл.

ПРИМЕНЕНИЕ КОМБИНАЦИИ ГРЕБНЕОБРАЗНЫХ ПОЛИМЕРОВ В КАЧЕСТВЕ ДОБАВКИ, УЛУЧШАЮЩЕЙ ПРИГОДНОСТЬ ДЛЯ ОБРАБОТКИ ВОДНОГО СОСТАВА НА ОСНОВЕ ГИДРАВЛИЧЕСКИХ ВЯЖУЩИХ

Настоящее изобретение касается применения при приготовлении водного состава на основе гидравлических вяжущих комбинаций по меньшей мере одного гребнеобразного сополимера, содержащего (мет)акриловый скелет, на который привиты боковые цепочки, содержащие гидрофильную группу, и по меньшей мере одного гребнеобразного сополимера, содержащего (мет)акриловый скелет, на который привиты боковые цепочки, оканчивающиеся гидрофобной группой. Изобретение также относится к водному составу на основе гидравлических вяжущих, содержащему: а) по меньшей мере один гребнеобразный (мет)акриловый сополимер, содержащий по меньшей мере одну боковую цепь, несущую по меньшей мере одну гидрофильную алкоксигруппу или гидроксильную группу полиалкиленгликоля, б) по меньшей мере один гребнеобразный (мет)акриловый сополимер, содержащий по меньшей мере одну боковую цепь, несущую по меньшей мере одну гидрофобную группу. Изобретение развито в зависимых пунктах формулы изобретения. Технический результат - обеспечение пригодности ...

СОПОЛИМЕР, ВОДНЫЙ РАСТВОР, СОДЕРЖАЩИЙ СОПОЛИМЕР, И СПОСОБ УМЕНЬШЕНИЯ НЕГАТИВНЫХ ЭФФЕКТОВ ПРИРОДНОЙ СМОЛЫ И АДГЕЗИВНЫХ ЗАГРЯЗНИТЕЛЕЙ ПРИ ВАРКЕ ЦЕЛЛЮЛОЗНОЙ МАССЫ И ПРОИЗВОДСТВЕ БУМАГИ

Настоящее изобретение относится к сополимеру, водному раствору сополимера, способу уменьшения отложения природной смолы и адгезивных загрязнителей на оборудовании по производству целлюлозной массы и бумаги, применению сополимера, применению водного раствора сополимера. Сополимер содержит по меньшей мере один гидрофильный мономер и по меньшей мере два гидрофобных мономера. Гидрофильным мономером является акриловая кислота. Гидрофобными мономерами являются метилстирол и стирол. Метилстирол присутствует в количестве не менее 10 мас.% от общей массы сополимера. Сополимер имеет температуру Tgстеклования не менее 105°С. Сополимер применяется для уменьшения отложения природной смолы и адгезивных загрязнителей на оборудовании по производству целлюлозной массы и бумаги. Применение - водный раствор сополимера применяется для уменьшения отложения природной смолы и адгезивных загрязнителей на оборудовании по производству целлюлозной массы и бумаги. Технический результат – получение сополимера, содержащего ...

ЭМУЛЬГИРУЮЩИЕ ПОЛИМЕРЫ И ИХ ПРИМЕНЕНИЕ

Изобретение относится к эмульгирующим полимерам, к применению этих полимеров для стабильного эмульгирования гидрофобных добавок в водные пластификаторы бетона. Заявлен полимер Р, получаемый сополимеризациейа) по меньшей мере одного мономера А с этиленовой ненасыщенностью, выбранного из группы, состоящей из ненасыщенных моно- или дикарбоновых кислот, сульфоновых кислот, фосфоновых кислот как в виде свободных кислот или же в виде солей, или же в виде неполных солей, или в виде галогенида или ангидрида, с b) по меньшей мере одним этиленовоненасыщенным мономером В формулы (I), (II) или (III),где радикалы и коэффициенты определены как в формуле ис) с по меньшей мере одним этиленовоненасыщенным мономером С формулы (IV),где радикалы и коэффициенты определены как в формуле и сd) по меньшей мере, одним этиленовоненасыщенным мономером D формулы (V),где радикалы и коэффициенты определены, как в формулеи при необходимостие) с по меньшей мере одним основным этиленовоненасыщенным мономером Е формулы ...

РЕГУЛИРОВАНИЕ В СПОСОБЕ ПОЛУЧЕНИЯ АБСОРБИРУЮЩИХ ВОДУ ПОЛИМЕРНЫХ ЧАСТИЦ В НАГРЕТОЙ ГАЗОВОЙ ФАЗЕ

Настоящее изобретение относится к способу получения абсорбирующих воду полимерных частиц. Описан способ получения абсорбирующих воду полимерных частиц, когда образуются содержащие мономеры капли, которые содержат не менее чем один этиленовый ненасыщенный мономер, содержащий по крайней мере одну кислотную группу, не менее чем одно средство для образования сетчатой структуры, по крайней мере один инициатор и воду, мономеры полимеризуются в окружающей капли нагретой газовой фазе и газ проходит через реактор полимеризации, при этом температуру выходящего из реактора полимеризации газа регулируют, отличающийся тем, что регулирование осуществляется посредством предварительного нагрева проходящего через реактор газа перед входом в реактор с помощью соответствующего теплообменника. Технический результат - способ, позволяющий получать абсорбирующие воду полимерные частицы постоянного высокого качества. 7 з.п. ф-лы, 1 табл., 6 пр.

СОПОЛИМЕР ДЕКСТРИНА, СТИРОЛА И СЛОЖНОГО ЭФИРА АКРИЛОВОЙ КИСЛОТЫ, СПОСОБ ЕГО ПОЛУЧЕНИЯ И ЕГО ПРИМЕНЕНИЕ ДЛЯ МЕЛОВАНИЯ БУМАГИ

Изобретение относится к способу свободнорадикальной полимеризации декстрина по меньшей мере с двумя гидрофобными мономерами, при этом указанный декстрин составляет по меньшей мере 60% по весу от общего веса декстрина и гидрофобных мономеров и характеризуется средневесовой молекулярной массой в диапазоне от 60000 до 2000000 Да, гидрофобные мономеры представлены стиролом и по меньшей мере одним линейным или разветвленным C1-C4-сложным эфиром акриловой кислоты, при этом весовое соотношение стирол:сложный эфир составляет от 10:90 до 90:10, полимеризация происходит в присутствии инициатора свободнорадикальной полимеризации, который представляет собой персульфат, в дозе от 0,5 до 2,5% в пересчете на сухой вес относительно сухого веса декстрина. Изобретение относится к сополимеру декстрина и по меньшей мере двух гидрофобных мономеров, представленных стиролом и по меньшей мере одним неразветвленным или разветвленным C1-C4-сложным эфиром акриловой кислоты. Изобретение также относится к применению ...

ПОЛИМЕРНАЯ ДИСПЕРСИЯ

Изобретение относится к водной полимерной дисперсии, способу ее получения, ее применению и способу получения бумаги. Водная полимерная дисперсия для использования в качестве флоккулянта при изготовлении бумаги или для очистки воды содержит анионный растворимый в воде дисперсионный полимер, включающий в полимеризованной форме мономерную смесь, содержащую (i) один или несколько анионных мономеров, (ii) первый неионный винильный мономер, который представляет собой акриламид, и (iii) по меньшей мере, один второй неионный винильный мономер; растворимую в воде соль и стабилизатор, где растворимая в воде соль присутствует в количестве, равном, по меньшей мере, 2,0% мас. в расчете на совокупную массу дисперсии, и где мономерная смесь содержит от приблизительно 1 до приблизительно 40% мол., анионного мономера, от приблизительно 20 до приблизительно 98% моль, акриламида и от приблизительно 1 до приблизительно 40% мол., второго неионного винильного мономера, при этом сумма процентных содержаний составляет ...

Способ получения полиакриламидных гидрогелей путем непрерывной фронтальной полимеризации

Настоящее изобретение относится к способу получения полиакриламидного гидрогеля (ПАГ), который может использоваться в сельском хозяйстве, медицине, косметологии, для очистки нефтяных трубопроводов и для создания предметов гигиены. Способ получения полиакриламидного гидрогеля осуществляется путем непрерывной фронтальной полимеризации и включает подачу акриламида или его производных в вертикальный реактор непрерывного действия снизу вверх при непрерывном принудительном выведении получаемого полиакриламидного гидрогеля вытягиванием из верхней части реактора. Подача акриламида или его производных в реактор осуществляется при атмосферном давлении. Технический результат, достигаемый при реализации заявляемого изобретения, заключается в снижении трудоемкости при реализации технологии получения полиакриламидного гидрогеля, повышении надежности процесса получения гидрогеля за счет достижения стабильности процесса полимеризации, а также в повышении качества получаемого полиакриламидного гидрогеля ...

СВЯЗУЮЩЕЕ ВЕЩЕСТВО И МОДИФИКАТОР РЕОЛОГИИ ДЛЯ ВОДНЫХ СУСПЕНЗИЙ МИНЕРАЛЬНЫХ ВЕЩЕСТВ, ПОЛУЧЕННЫЕ ГРАНУЛЫ И ИХ ПРИМЕНЕНИЕ

... 1. Сополимер, одновременно выполняющий функцию связующего вещества и функцию модификатора реологии для водных суспензий пигментов и/или минеральных наполнителей, используемый для того, чтобы получить гранулы пигментов и/или минеральных наполнителей, восстанавливаемые и сформированные из элементарных частиц с площадью удельной поверхности, определяемой по методу Брунауэра-Эммета-Теллера, находящейся в диапазоне от 0,5 до 200 м2/г как определено в соответствии со стандартом ISO standard 9277, гранулы, которые легко повторно диспергировать в термопластических смолах, отличающийся тем, что он состоит, при выражении в массовых процентах, из: а) от 3 до 75%, предпочтительно от 4 до 70%, по меньшей мере, одного мономера с карбоксильной функциональностью, b) от 97 до 25%, предпочтительно от 96 до 30%, по меньшей мере, одного мономера с функциональностью сложного эфира, или амида акрилового производного, или винила, и с) от 0 до 5%, по меньшей мере, одного кислотного мономера, содержащего атом серы ...

СПОСОБ ПОЛУЧЕНИЯ МЕТАКРИЛОВОЙ КИСЛОТЫ ИЛИ СЛОЖНЫХ ЭФИРОВ МЕТАКРИЛОВОЙ КИСЛОТЫ

... 1. Способ получения метакриловой кислоты или сложных эфиров метакриловой кислоты, содержащий этапы ! IA) синтеза 3-гидроксиизомасляной кислоты способом, включающим в себя этап создания контакта клетки, генетически модифицированной по сравнению с диким ее типом таким образом, что она синтезирует больше 3-гидроксиизомасляной кислоты или полигидроксиалканоатов на основе 3-гидроксиизомасляной кислоты, чем этот дикий тип, с питательной средой, содержащей в качестве источника углерода углеводы, глицерин, двуокись углерода, метан, метанол, L-валин или L-глутамат, в условиях, в которых из источника углерода образуются 3-гидроксиизомасляная кислота или полигидроксиалканоаты на основе 3-гидроксиизомасляной кислоты, а также, при необходимости, отделения 3-гидроксиизомасляной кислоты от питательной среды, а также, при необходимости, нейтрализации 3-гидроксиизомасляной кислоты, ! IB) дегидратации 3-гидроксиизомасляной кислоты с образованием метакриловой кислоты, а также, при необходимости, этерификации ...

Каталическая конверсия гидроксипропионовой кислоты или ее ее производных в акриловую кислоту и ее производные

... 1. Способ получения акриловой кислоты, производных акриловой кислоты или их смесей, включающий стадию, на которой вводят в контакт поток, содержащий гидроксипропионовую кислоту, производные гидроксипропионовой кислоты или их смеси, с катализатором, содержащим:(a) по меньшей мере, один анион конденсированного фосфата, который выбирают из группы, состоящей из формул (I), (II) и (III)где n составляет, по меньшей мере, 2 и m составляет, по меньшей мере, 1; и(b) по меньшей мере, два различных катиона,при этом катализатор, по существу, нейтрально заряжен; и дополнительно при этом мольное соотношение фосфора и указанных, по меньшей мере, двух различных катионов составляет от приблизительно 0,7 до приблизительно 1,7, с получением таким образом акриловой кислоты, производных акриловой кислоты или их смесей в результате приведения в контакт указанного потока с указанным катализатором.2. Способ по п. 1, отличающийся тем, что указанный поток дополнительно содержит:(a) разбавитель; и(b) инертный газ ...

НЕПРЕРЫВНЫЙ СПОСОБ ПОЛУЧЕНИЯ ВОДОАБСОРБИРУЮЩИХ ПОЛИМЕРОВ

... 1. Способ получения частиц абсорбирующего воду полимера, включающий в себя стадии(i) получения водного раствора мономера, содержащего по меньшей мере частично нейтрализованные моноэтиленненасыщенные мономеры, несущие группы (α1) карбоновой кислоты, и по меньшей мере один сшивающий агент (α3);(ii) необязательного добавления мелких частиц водоабсорбирующего полимера или водных растворов солей к водному раствору мономера;(iii) добавления к водному раствору мономеров инициатора полимеризации или по меньшей мере одного компонента системы инициаторов полимеризации, которая содержит два или более компонента;(iv) понижения содержания кислорода водного раствора мономеров;(v) загрузки водного раствора мономеров в реактор-полимеризатор;(vi) полимеризации мономеров в водном растворе мономеров в реакторе-полимеризаторе;(vii) выгрузки стренги полимерного геля из реактора-полимеризатора и необязательного измельчения полимерного геля с получением таким образом частиц полимерного геля;(viii) высушивания ...

СПОСОБ ПОЛУЧЕНИЯ АКРИЛОВОЙ КИСЛОТЫ ИЛИ ЕЕ ПРОИЗВОДНЫХ

... 1. Способ конверсии гидроксипропионовой кислоты, производных гидроксипропионовой кислоты или их смесей в акриловую кислоту, производные акриловой кислоты или их смеси, включающий следующие стадии, на которых:a. обеспечивают водный раствор, содержащий гидроксипропионовую кислоту, производные гидроксипропионовой кислоты или их смеси, при этом указанная гидроксипропионовая кислота находится в мономерной форме в указанном водном растворе;b. объединяют указанный водный раствор с инертным газом с образованием смеси водного раствора/газа;c. испаряют указанную смесь водного раствора/газа с получением газообразной смеси; иd. дегидратируют указанную газообразную смесь путем введения в контакт указанной газообразной смеси с катализатором дегидратации под давлением, по меньшей мере, приблизительно 80 фунт./кв.дюйм изб., с получением указанной акриловой кислоты, производных акриловой кислоты или их смесей.2. Способ по п. 1, отличающийся тем, что давление составляет от приблизительно 80 фунт./кв.дюйм ...

АНИОННЫЕ АССОЦИАТИВНЫЕ МОДИФИКАТОРЫ РЕОЛОГИЧЕСКИХ СВОЙСТВ

... 1. Полимер, содержащий в качестве полимеризованных звеньевa) от 25 до 85 мас.% акриловой кислоты,b) от 10 до 60 мас.% N-винилпирролидона,c) от 0.5 до 10 мас.% по меньшей мере одного катионного мономера,d) от 0.5 до 10 мас.% по меньшей мере одного из соединений d1) или d2)гдепорядок алкиленоксидных звеньев является произвольным,k и l, независимо друг от друга, представляют собой целое число от 0 до 1000, где сумма k и l равна по меньшей мере 5,Rпредставляет собой водород или С-С-алкил,Rпредставляет собой C-С-алкил, C-С-алкенил или C-Салкиларил, иX представляет собой О или группу формулы NR, в которой Rпредставляет собой Н, алкил, алкенил, циклоалкил, гетероциклоалкил, арил или гетарил,e) от 0.01 до 2 мас.% по меньшей мере одного сшивающего агента,f) от 0 до 30 мас.% других мономеров, отличных от а)-е), причем в общем компоненты а)-f) составляют 100 мас.%.2. Полимер по п.1, в котором по меньшей мере один катионный мономер с) выбирается из соединений винилимидазола общей формулы (II),в которой ...

ДОБАВКА К БЕТОНУ И РАСТВОРУ

... 1. Сополимер, состоящий из структурных звеньев, ! i) от 0,1 до 50 мол.% звеньев, полученных из этилен ненасыщенного мономера (а), имеющего на один моль от 25 до 300 молей С2-С3 оксиалкиленовых групп; ! ii) от 0,1 до 49,9 мол.% звеньев, полученных из мономера (b) алкил, алкенил или гидроксиалкил сложного эфира этилен ненасыщенной моно- и дикарбоксильной кислоты; ! iii) от 0,1 до 90 мол.% звеньев, полученных из мономера (с), выбранного из группы, состоящей из этилен ненасыщенной монокарбоксильной кислоты, ее соли, этилен ненасыщенной дикарбоксильной кислоты, ее ангидрида и ее соли, и, ! iv) необязательно, до 30 мол.% других мономеров. ! 2. Сополимер по п.1, в котором мономер (а) выбирается из группы, состоящей из: ! (а-1) сложноэфирного продукта, полученного реакцией между метоксиполиалкенгликолем, имеющим на один моль от 25 до 300 моль С2-С3 оксиалкиленовых групп, и акриловой кислотой или метакриловой кислотой; ! (а-2) простого моноаллильного эфира, полученного реакцией между полиалкенгликолем ...

ПОЛИМЕР, ИМЕЮЩИЙ БОКОВЫЕ ЦЕПИ ПРОСТОГО ПОЛИЭФИРА

ГРЕБЕНЧАТЫЕ ПОЛИМЕРЫ В КАЧЕСТВЕ ДИСПЕРГАТОРОВ ДЛЯ АКТИВИРОВАННЫХ ЩЕЛОЧЬЮ СВЯЗУЮЩИХ ВЕЩЕСТВ

... 1. Применение гребенчатого полимера KP в качестве диспергатора в связующей композиции, содержащей щелочную активирующую добавку, притом, что активирующая добавка является подходящей, в частности, для активирования латентного гидравлического и/или пуццоланового связующего, и притом, что гребенчатый полимер KP имеет основную цепь полимера, состоящую из множественных мономеров основной цепи и имеет множество полимерных боковых цепей, каждая состоит из множества мономерных боковых цепей и связана с основной цепью и притом, что, по меньшей мере, часть мономеров основной цепи имеют одну или больше ионогенных групп, отличающееся тем, что структурная константа К гребенчатого полимера KP, которая определена какявляется, по меньшей мере, равным 70,где n означает среднее количество боковых цепей на молекулу гребенчатого полимера,N означает среднее количество мономеров основной цепи на боковую, цепь,P означает среднее количество мономеров боковой цепи на боковую цепь иz представляет среднее количество ...

Использование флуоресцентных полимеров в маркировочных составах для диагностического определения качества уборки

СОПОЛИМЕР И МЕДИЦИНСКОЕ УСТРОЙСТВО, РАЗДЕЛИТЕЛЬНЫЙ МЕМБРАННЫЙ МОДУЛЬ МЕДИЦИНСКОГО НАЗНАЧЕНИЯ И УСТРОЙСТВО ДЛЯ ОЧИСТКИ КРОВИ, ВКЛЮЧАЮЩЕЕ ЭТОТ СОПОЛИМЕР

ЩЕЛОЧНЫЕ АКРИЛОВЫЕ НАБУХАЮЩИЕ ЭМУЛЬСИИ, СОДЕРЖАЩИЕ АКРИЛОВУЮ КИСЛОТУ, ИХ ПРИМЕНЕНИЕ В ВВОДЫХ СОСТАВАХ И СОСТАВЫ, ИХ СОДЕРЖАЩИЕ

... 1. Способ получения в прямой водной эмульсии полимера, отличающийся тем, что в указанном способе используют реакцию полимеризации каждого из мономеров, выраженного в мас.%:a) от 20% до 80 мас.% акриловой кислоты,b) от 10% до 90 мас.% по меньшей мере одного сложного эфира (мет)акриловой кислоты,c) от 0,05% до 22 мас.% 2-акриламидо-2-метилпропансульфоновой кислоты,d) от 0 до 1 мас.% по меньшей мере одного сшивающего мономера,причем сумма a)+b)+c)+d) равна 100%,илиa) от 20% до 80 мас.% акриловой кислоты,b) от 10% до 90 мас.% по меньшей мере одного сложного эфира (мет)акриловой кислоты,c) от 10% до 25 мас.% мономера, содержащего гидрофобную группу,d) от 0,05% до 22 мас.% 2-акриламидо-2-метилпропансульфоновой кислоты,e) от 0 до 1 мас.% по меньшей мере одного сшивающего мономера,причем сумма a)+b)+c)+d)+е) равна 100%,причем водная эмульсия содержит сухой экстракт в количестве от 10% до 50 мас.% в пересчете на сухое вещество полимера по отношению к ее общей массе.2. Способ по п.1, отличающийся ...

НЕ СОДЕРЖАЩИЕ ПОВЕРХНОСТНО-АКТИВНЫХ ВЕЩЕСТВ АКРИЛОВЫЕ ЭМУЛЬСИИ, ЗАГУЩАЕМЫЕ ЩЕЛОЧЬЮ, И ПРИМЕНЕНИЕ В ВОДНЫХ КОМПОЗИЦИЯХ, И КОМПОЗИЦИИ, СОДЕРЖАЩИЕ ТАКИЕ ЭМУЛЬСИИ

... 1. Способ производства полимера в виде прямой водной эмульсии, отличающийся тем, что указанный способ использует реакцию полимеризации:а) 20-60 мас.% метакриловой кислоты и потенциально акриловой кислоты;b) 40-80 мас.% по меньшей мере одного эфира (мет)акриловой кислоты;c) 0,05-22 мас.% 2-акриламидо-2-метилпропансульфокислоты;d) 0-1 мас.% по меньшей мере одного сшитого мономера;общее содержание a)+b)+c)+d) равно 100%,илиа) 20-60 мас.% метакриловой кислоты и потенциально акриловой кислоты;b) 40-80 мас.% по меньшей мере одного эфира (мет)акриловой кислоты;c) 0,5-25 мас.% мономера, содержащего гидрофобную группу;d) 0,05-22 мас.% 2-акриламидо-2-метилпропансульфокислоты;e) 0-1 мас.% по меньшей мере одного сшитого мономера;общее содержание a)+b)+c)+d)+е) равно 100%,выраженных в процентах по массе каждого из мономеров,и отличающийся тем, что указанный способ не содержит поверхностно-активных веществ и растворителей, отличных от воды.2. Способ по п. 1, отличающийся тем, что эфир (мет)акриловой ...

КОМПОЗИЦИЯ, СОДЕРЖАЩАЯ СШИТЫЕ АНИОНОГЕННЫЕ ОРГАНИЧЕСКИЕ ПОЛИМЕРНЫЕ МИКРОЧАСТИЦЫ, ЕЕ ПОЛУЧЕНИЕ И ПРИМЕНЕНИЕ В СПОСОБАХ ИЗГОТОВЛЕНИЯ БУМАГИ И КАРТОНА

ФЛУОРОФОР И СПОСОБ ПОЛУЧЕНИЯ ИНГИБИТОРА СОЛЕОТЛОЖЕНИЙ, СОДЕРЖАЩЕГО ФЛУОРОФОР В КАЧЕСТВЕ ФЛУОРЕСЦЕНТНОЙ МЕТКИ

СПОСОБ ПОЛУЧЕНИЯ ВОДНЫХ ДИСПЕРСИЙ

(МЕТ)АКРИЛАТНЫЙ ИОНОМЕР, ПОЛИМЕР И ПОКРОВНОЕ СРЕДСТВО

... 1. (Мет)акрилатный мономер общей формулы (I): ! , ! в которой R1 означает водород или метильную группу, ! Х означает кислород или группу формулы NR', в которой R' означает водород или остаток с 1-6 атомами углерода, ! R2 означает алкиленовую группу с 1-22 атомами углерода, ! Y означает кислород, серу или группу формулы NR", в которой R' означает водород или остаток с 1-6 атомами углерода, и ! R3 означает ненасыщенный остаток с 8 атомами углерода и по меньшей мере двумя двойными связями, который не является частью ароматической системы. ! 2. (Мет)акрилатный мономер по п.1, отличающийся тем, что остаток R2 означает этиленовую группу. ! 3. (Мет)акрилатный мономер по п.1, отличающийся тем, что остаток R3 содержит концевую двойную связь. ! 4. (Мет)акрилатный мономер по п.1, отличающийся тем, что остаток R3 не содержит концевую двойную связь. ! 5. (Мет)акрилатный мономер по п.1, отличающийся тем, что остаток R3 содержит две двойные связи. ! 6. (Мет)акрилатный мономер по п.1, отличающийся тем, ...

СОПОЛИМЕРЫ, КОТОРЫЕ СОДЕРЖАТ ГРУППЫ КАРБОНОВЫХ КИСЛОТ, ГРУППЫ СУЛЬФОКИСЛОТ И ПОЛИАЛКИЛЕНОКСИДНЫЕ ГРУППЫ, В КАЧЕСТВЕ ПРЕПЯТСТВУЮЩЕЙ ОТЛОЖЕНИЯМ ДОБАВКИ К МОЮЩИМ И ЧИСТЯЩИМ СРЕДСТВАМ

... 1. Сополимеры, которые содержат в полимереa1) от 30 до 90% мас. по меньшей мере одной ненасыщенной по моноэтиленовому типу карбоновой кислоты с 3-8 атомами углерода, ангидрида или водорастворимой соли этой кислоты,a2) от 3 до 60% мас. по меньшей мере одного мономера, содержащего сульфокислотные группы, выбираемого из 2-акриламидо-2-метилпропансульфокислоты, аллилсульфокислоты и их водорастворимых солей,a3) от 3 до 60% мас. по меньшей мере одного неионного мономера формулы (I),в которой Rявляется атомом водорода или метилом, Rодинаковыми или разными, линейными или разветвленными алкиленовыми остатками с 2-6 атомами углерода, которые могут быть расположены блоками или статистически, выбираемыми из этилена и 1,2-пропилена, a Rатомом водорода или линейным или разветвленным алкильным остатком с 1-4 атомами углерода, и о является натуральным числом от 3 до 50,a4) от 0 до 30% мас. одного или нескольких других этиленовых ненасыщенных мономеров, которые могут полимеризоваться с a1), a2) и a3),причем ...

ВОДНАЯ ПОЛИМЕРНАЯ ЭМУЛЬСИЯ И ПОЛУЧЕННАЯ ИЗ НЕЕ ВОДНАЯ АДГЕЗИВНАЯ КОМПОЗИЦИЯ

СОПОЛИМЕРЫ С ГЕН-БИСФОСФОНОВЫМИ ГРУППАМИ

... 1. Сополимер, содержащий основную углеводородную цепь и боковые группы, в котором боковые группы содержат карбоксильные группы, полиоксиалкильные группы и гем-бисфосфоновые группы.2. Сополимер по п.1, в котором полиоксиалкильные боковые группы связаны с основной цепью сложноэфирной, простоэфирной или амидной связью.3. Сополимер по любому из пп.1 или 2, в котором гем-бисфосфоновые боковые группы получены в результате прививки соединением, выбранным из числа 1-гидроксиэтилен-1,1-бисфосфоновой кислоты (HEDP), 1-гидрокси-3-аминопропилен-1,1-бисфосфоновой кислоты (АНР) и 1-гидрокси-4-аминобутилен-1,1-бисфосфоновой кислоты (ВНР).4. Сополимер по п.1, в котором гем-бисфосфоновые боковые группы соответствуют формуле (IA) ниже:в которой:L представляет собой группу, связывающую данный фрагмент с основной цепью, более конкретно связь, атом кислорода, группу -NR- (причем Rможет быть водородом или алкильной группой C-C), или алкиленовую группу, предпочтительно L является атомом кислорода или группой ...

ГРАНУЛИРОВАННЫЙ ВОДОПОГЛОЩАЮЩИЙ АГЕНТ НА ОСНОВЕ ВОДОПОГЛОЩАЮЩЕЙ СМОЛЫ, СПОСОБ ПОЛУЧЕНИЯ АГЕНТА И ПОГЛОЩАЮЩЕЕ ИЗДЕЛИЕ

... 1. Гранулированный водопоглощающий агент, содержащий частицы водопоглощающей смолы в качестве основного компонента, который получают полимеризацией ненасыщенного мономера, содержащего кислотную группу и/или ее соль, причем этот агент представляет собой частицы, по меньшей мере, почти сферической формы, агрегаты частиц и агрегаты, полученные из частиц почти сферической формы, и водопоглощающий агент имеет следующие характеристики: (a) удерживаемая емкость при центрифугировании (CRC) в физиологическом растворе составляет не меньше 32 г/г; (b) среднемассовый размер частиц (D50) составляет не менее 200 мкм и не больше 400 мкм; (c) доля частиц, имеющих диаметр меньше чем 150 мкм, составляет не менее 0 мас.% и не более 5 мас.%; и (d) содержание летучих органических соединений при измерении концентрации в атмосфере с помощью трубки газового детектора, составляет не менее 0 ч./млн и не более 100 ч./млн. 2. Гранулированный водопоглощающий агент, содержащий частицы водопоглощающеи смолы в качестве ...

СОДЕРЖАЩИЕ ДЕЙСТВУЮЩИЕ ВЕЩЕСТВА ПОЛИМЕРНЫЕ ЧАСТИЦЫ

... 1. Содержащие действующее вещество полимерные частицы, содержащие винилполимеризат из 10-80 вес.% содержащих амино- и/или карбоксилгруппы мономеров, который в части рН - диапазона 0-10 нерастворим и в другой части диапазона растворим, отличающийся тем, что эти содержащие действующее вещество полимерные частицы содержат на часть винилполимеризата 3-1000 частей действующего вещества, имеют размер частиц в диапазоне 20 нм - 8 мкм и винилполимеризат на > 50 вес.% построен из полимеров с молекулярным весом <100.000 Д. 2. Содержащие действующее вещество полимерные частицы по п.1, отличающиеся тем, что эти частицы имеются в форме водной дисперсии с содержанием воды 20-99,9 вес.%. 3. Содержащие действующее вещество полимерные частицы по пп.1 и 2, отличающиеся тем, что полимерный компонент состоит из A) 20-90 вес.% сложных алкиловых эфиров акриловой и/или метакриловой кислоты, B) 80-10 вес.% мономеров с карбоксильными и/или аминогруппами, C) 0-40 вес.% других, сополимеризируемых с А) и В) мономеров ...

Polymerampholyte, Polymermikroemulsionen, Verfahren zu deren Herstellung und deren Verwendung als Flokkulierungsmittel

(Meth)acrylat Copolymere als Fliesspunkt-verringerndes Mittel

COPOLYMERISATE AUF ETHYLENBASIS UND IHRE VERWENDUNG ALS FLIESSVERBESSERER IN ERDÖLMITTELDESTILLATEN

VERFAHREN ZUR HERSTELLUNG EINER VINYLAMIDPOLYMERZUSAMMENSETZUNG FÜR HAUT- UND HAARZUSAMMENSETZUNGEN

Verwendung eines quellbaren Polymers zum Abdichten

Verwendung eines quellbaren Polymers zum Abdichten, wobei das Polymer durch Polymerisation einer Zusammensetzung erhältlich ist, die mindestens ein Polyalkylenglykol-di(meth)acrylat mit einem gewichtsmittleren Molekulargewicht größer 2500 g/mol enthält.

New ceramic dispersant

The invention relates to an improved process for producing a fired ceramic oxide material, in which a ceramic powder is dispersed in an aqueous solution contains a dispersant containing as active constituent a terpolymer comprising from about 10 to about 90 mol% of (meth)acrylic acid, from about 5 to about 85 mol% of (meth)acrylamide and from about 5 to about 85 mol% of sulphoalkyl(meth)acrylamide and having a molecular weight of from about 4,000 to about 80,000, and in which the sulphoalkyl(meth)acrylamide contains a radical having the general structural formula: where R1 is a hydrogen atom or an alkyl group preferably having from 1 to 4 carbon atoms, R is a hydrocarbon group having from 1 to 3 carbon atoms and X<(+)> is a cation, preferably Na<+>, NH4<+>, H<+>, K<+> and Ca <++>. The slurry containing the dispersed ceramic oxide powder is spray-dried, compacted (pressed) while it is essentially dry, and heated to form a fired ceramic material.

VERFAHREN ZUR HERSTELLUNG VON MONTAGEKLEBEBÄNDER MIT EINER TRÄGERSCHICHT AUF BASIS VON THERMISCH VERNETZTEN, VISKOELASTISCHEN ACRYLATEN

Carboxyl cationite copolymer prepn. - by copolymerising unsatd. carboxylic acid and vinyl!-contg. amide in acetic acid soln. dispersed in silicone liquid

Prepn. of carboxyl cationites (ion exchange resin) comprises (a) dissolving an unsatd. carboxylic acid (I) and vinyl-contg. amide comonomer (II) and radical plymerisation initiator in a 5-50% acetic acid at a (co)monomer concn. of 10-30%, (b) dispersing the resulting mixt. in a liquid silicone selected from polyethyl-siloxane and polymethylphenylsiloxane in a wt. ratio of reaction mixt. to silicon liquid of 1:3-5 and (c) copolymerising at 20-100 degrees C in suspension. (I) is (meth)acrylic acid and (II) is selected from hexahydro-1,3,5-triacryloyltriazine, N,N'-methylenediacrylamide, N,N'-ethylenedimethacrylamide and N,N'-hexamethylenedimethacrylamide. The wt. ratio of (I):(II) is 3-12:1. The cationites may be produced in the form of spherical granules having a high reversible sorption capacity in respect of proteins and enzymes. They may be used in the separation and purification of e.g. (a) terrilitine from the formation broth Aspergillus terricola (sorption capacity 200 mg/protein per ...

Mehrphasige Polymerzusammensetzung

Die vorliegende Erfindung betrifft eine mehrphasige Polymerzusammensetzung, umfassend ein Kammcopolymer (A), das eine kontinuierliche Acrylatphase und eine diskontinuierliche Kohlenwasserstoffphase ausbildet, sowie wenigstens eine in der Kohlenwasserstoffphase des Kammcopolymers (A) lösliche Kohlenwasserstoffverbindung (B). Die Erfindung betrifft ferner Haftklebmassen, umfassend die erfindungsgemäße mehrphasige Polymerzusammensetzung sowie die Verwendung der Haftklebmassen zur Verklebung von Gegenstanden, insbesondere von Gegenständen mit unpolaren Oberflächen.

Verfahren zur Herstellung von carboxylatreichen Copolymeren aus monoethylenisch ungesättigten Mono- und Dicarbonsäuren sowie carboxylatreiche Copolymere mit niedrigem Neutralisationsgrad

Herstellung von carboxylatreichen Copolymeren aus monoethylenisch ungesättigten Mono- und Dicarbonsäuren mit einem mittleren Molekulargewicht M¶w¶ von mindestens 3000 g/mol sowie mindestens 20,1 Gew.-% der Dicarbonsäure durch radikalische Polymerisation in Gegenwart von 2 bis 19,9 Moläquivalenten eines organischen Amins, bezogen auf die Gesamtmenge aller COOH-Gruppen der Mono- und Dicarbonsäuren, bei einer Temperatur von nicht mehr als 130 DEG C. Carboxylatreiche Copolymere mit niedrigem Neutralisationsgrad, welche durch das Verfahren erhältlich sind, und Verwendung derartiger Copolymere zur Behandlung von Oberflächen sowie als Bindemittel zur Faserbindung.

METHACRYLHARZ UND HERSTELLUNGSVERFAHREN DAFÜR

Wässrige Kopolymerisatdispersion mit verbesserter Blockfestigkeit

Die Erfindung betrifft neue, wässrige Kopolymerisat-Sekundärdisperionen, ein Verfahren zu deren Herstellung und ihre Verwendung zur Herstellung hochwertiger Beschichtungen, insbesondere für Holz.

Endothelial polymers

Polymeric thickners and production processes with reduced environmental impact

THICKENERS

... 1447556 Polymeric thickening agents ROHM & HAAS CO 6 Dec 1973 [6 Dec 1972] 56667/73 Heading C3P Polymeric thickening agents are obtained from (a) one or more ,#-unsaturated carboxylic acids and (b) one or more oligomers of an allyl group-containing ester of acrylic or methacrylic acid or a partially hydrolysed derivative thereof. Other monomers may be copolymerized or may be co-oligomerized. In examples allyl acrylate, allyl methacrylate, or allyloxyethyl methacrylate are oligomerized alone, with each other or with allyl alcohol or allyloxyethyl alcohol in solution in the presence of potassium tert. butoxide. The product may be partially hydrolysed with aqueous potassium hydroxide followed by acidfication. The products are polymerized with (meth)acrylic acid. in bulk or aqueous medium and the products are used in acid or salt form as thickening agents for aqueous or non-aqueous media.

PREPARATION OF COPOLYMER LATICES

... 1399484 Photographic subbing layers EASTMAN KODAK CO 12 Sept 1972 [13 Sept 1971 7 Aug 1972] 42365/72 Heading G2C [Also in Divisions B2 and C3] Novel acid stable acidic copolymer dispersions prepared by emulsion copolymerization of a preformed unsaturated monocarboxylic acid dispersion in water, are coated on to substrates such as films of polyethylene terephthalate, cellulose nitrate, cellulose esters, poly(vinyl acetol), polystyrene and poly carbonates, to form plastics subbing layers for subsequent coatings of light-sensitive photographic compositions such as silver halide emulsions. In the examples dispersion of copolymers of acrylic acid, acrylonitrile and vinylidene chloride, and itaconic acid, methylacrylate and vinylidene chloride, are coated on to polyethylene terephthalate film to form a subbing layer for various silver halide emulsions.

METHOD OF PREPARING HIGH-MOLECULAR-WEIGHT ACRYLIC AMIDE/ACID-TYPE COPOLYMERS

METHOD OF PREPARING OLIGOMERS

Polishing composition

Improvements in or relating to Hair Fixing Resin Compositions

... 1,169,862. Hair s p r a y . NATIONAL STARCH & CHEMICAL CORP. 15 March, 1968 [23 March, 1967], No. 12747/68. Heading A5B. [Also in Divisions C3 and C4] An aerosol hair spray formulation and a wave setting lotion contain a film-forming copolymer of vinyl acetate, crotonic acid and at least one vinyl ester of an alpha-branched saturated aliphatic monocarboxylic acid having a minimum of five carbon atoms in the carboxylic acid moiety, the acid having the form R 1 R 2 R 3 CCOOH wherein R 1 and R 2 are alkyl radicals and R 3 is selected from hydrogen, alkyl, alkaryl, aralkyl and aryl radicals.

WATER ABSORBENT RESIN PARTICLES OF CROSSLINKED CARBOXYL CONTAINING POLYMERS AND METHOD OF PREPARATION

Production of polymers

Interpolymers of vinylidene aromatic hydrocarbons or halohydrocarbon and a natural or synthetic rubbery conjugated 1, 3-diene polymer are prepared by partially polymerizing a solution of the rubbery polymer in the hydrocarbon or halohydrocarbon other than in the presence of water, agitating the partially polymerized solution with water and heating the suspension at or above 110 DEG C., with agitation but in the absence of a dispersing agent until 15% of the monomer is polymerized, and the viscosity of the partially polymerized solution is at least 40 poises at 40 DEG C., then adding a water-soluble interpolymer of 93,5 to 98,5% mol of acrylic and/or methacrylic acids and 6,5-1,5% mol of 2-ethylhexyl acrylate and/or methacrylate, at least one part by weight thereof being soluble in 199 parts of water at 25 DEG C., and continuing heating with agitation until the polymerization is substantially complete. Styrene, vinyl naphthalene, nuclear substituted alkyl- or halostyrenes, or mixtures thereof ...

Production of dispersable polyethylene waxes

Waxy ethylene polymers dispersable in water are produced by polymerizing ethylene at 50 DEG -250 DEG C. and 100-2,000 atmospheres in p 20-80% of an organic solvent containing up to 20% of water in the presence of 0,1-20% of an at least 50% or wholly neutralized unsaturated polymerizable carboxylic or sulphonic acid and free radical forming calalysts. The acids may be acrylic, methacrylic, crotonic, maleic, fumaric or vinylsulphonic. An alkali, e.g. Na or K, hydroxide or ammonium hydroxide may be used for neutralization as well as organic ammonium compounds in which the H of the NH4 may be substituted by alkyl, alkoxy, aryl or aralkyl radicals. Amides or anhydrides of the above acids may be used together with the acids and their salts. The catalysts, e.g. 0,001-5%, may be organic or inorganic peroxides, e.g. benzoyl, a per salt, peroxyesters, azo compounds or redox systems or the radicals may be produced by high-energy radiation. Regulators, e.g. allyl acetate, may be used. The solvent may ...

COPOLYMERS FOR USE AS DRILLING FLUID ADDITIVES AND METHODS OF DRILLING

Production of branched and/or crosslinked copolymers from olefinically unsaturated monomers

Branched and cross-linked polymers are produced by copolymerizing (1) one or more olefinically unsaturated monomers, e.g. acrylonitrile, methacrylonitrile, acrylamide, methacrylamide, acrylic and methacrylic acids and their esters with methanol, ethanol, propanol, isopropanol, n-butanol, 2-ethylhexanol, cyclohexanol, cyclooctanol, decyl alcohol and lauryl alcohol, styrene, o-chlorostyrene, vinyltoluenes, a -methylstyrene, vinyl acetate, vinyl propionate, ethylene, propylene, butylene-1, butylene-2, isobutylene, butadiene, 2-chlorobutadiene, isoprene, vinyl chloride, vinylidene chloride, vinyl sulphonic acids, and vinyl methyl, isobutyl, hexyl, 2-ethylhexyl, decyl and lauryl ethers, with (2) an N-nitrosoamide which contains in the molecule at least one olefinic double bond. N-nitrosoamides specified include N-nitroso-N-(2-ethylhexyl)-maleic acid monoamide, N-nitroso-N-benzoyl-maleic acid monoamide, 1-nitroso-5-vinyl-5-isopropenylbarbituric acid, 1:3-dinitroso-5-vinyl-5-cyclohexenylbarbituric ...

POLYMERIC SURFACE ACTIVE AGENTS

Water-swellable hybrid material with inorganic additives and process for its preparation

Porous gels and uses thereof

Use of silicon-containing polymers to improve red mud flocculation in the bayer process

Water-swellable hybrid material with inorganic additives and process for its preparation

Water-swellable hybrid material with inorganic additives and process for its preparation

Use of silicon-containing polymers to improve red mud flocculation in the bayer process

Formulation of drugs and vaccines in the form of percutaneous injectable needles.

Formulation of drugs and vaccines in the form of percutaneous injectable needles.

Porous gels and uses thereof

Water-swellable hybrid material with inorganic additives and process for its preparation

Porous gels and uses thereof

Formulation of drugs and vaccines in the form of percutaneous injectable needles.

Use of silicon-containing polymers to improve red mud flocculation in the bayer process

Use of silicon-containing polymers to improve red mud flocculation in the bayer process

Alkali soluble resin polymer and negative-type photosensitive resin composition including the same

Provided are an alkali soluble binder resin that includes a monomer including an unsaturated double bond, an unsaturated double bond character monomer including a carboxylic acid and an unsaturated double bond character monomer including an allyl group as a repeating unit, in which a molecular weight distribution (Mw/Mn) is in a range of about 2.0 to about 3.5, and a negative-type photosensitive resin composition including the alkali soluble binder resin. Re-solubility, fine-patterned substrate adhesion and dispersion stability may be improved by including the alkali soluble binder resin according to the present invention.

Photosensitive resin composition

Disclosed is a photosensitive resin composition which has excellent transparency, heat resistance, thermal discoloration resistance, adhesion to a substrate and electrical characteristics, while exhibiting good developability and storage stability. Specifically disclosed is a photosensitive resin composition which contains the following components (A), (B) and (C). (A) a copolymer which contains (al) hydroxyphenyl (meth)acrylate and (a2) an unsaturated epoxy compound as copolymerization components (B) a novolac resin which contains one or more phenols selected from among dimethylphenol, trimethylphenol, methylpropylphenol, dipropylphenol, butylphenol, methylbutylphenol, dibutylphenol, and 4,4′-dihydroxy-2,2′-diphenylpropane (C) a quinonediazide group-containing compound

Process for preparing a polymer dispersion and a polymer dispersion

The present invention relates to a process for preparing a polymer dispersion comprising polymerising one or more water soluble anionic monomers (m 1 ) and one or more non-ionic vinyl monomers (m 2 ) present in a reaction mixture further comprising a polymeric stabiliser (B) and a polymeric co-stabiliser (C). It further relates to a polymer dispersion, the use of the polymer dispersion and a process for producing paper.

Ethylene copolymer with peg, cationic and anionic units, cosmetic composition including same and treatment method

The present invention relates to novel ethylenic copolymers comprising: a) from 25 to 95% by weight of monomer of formula (I), comprising PEG units; b) from 4 to 50% by weight of cationic monomer or one of its salts; c) from 1 to 35% by weight of anionic monomer and/or its salts. The invention also relates to cosmetic compositions, in particular hair compositions, comprising said copolymers and to a cosmetic treatment method employing them.

Uv-reflecting compositions

A composition containing polymeric particles. The polymeric particles have an average particle diameter from 30 to 300 nm and a Vicker's scale hardness from 100 to 700 Kgf/mm 2 . The composition also contains a film-forming polymer having T g no greater than 80° C. The refractive index difference between the polymeric particles and the film-forming polymer is at least 0.04.

Heat-expandable microspheres and hollow fine particles and method for producing the same as well as tire/rim assembly

In heat-expandable microspheres as a starting material for hollow fine particles, which have excellent performances required for giving not only a durability in steady running region but also a durability in high-speed running region to a tire-rim assembly, and each consisting of an outer shell made of a thermoplastic resin obtained by polymerizing a monomer component in the presence of a polymerization initiator, and a foaming agent encapsulated in the outer shell and having a boiling point not higher than a softening point of the thermoplastic resin, the polymerization initiator comprises a peroxydicarbonate as an essential component, and the foaming agent comprises a fluorine-containing compound having an ether structure and a carbon number of 2-10 and containing no chlorine atom and bromine atom.

Superabsorbent polymer compositions having color stability

The invention relates to absorptive, crosslinked polymeric compositions that are based on partly neutralized, monoethylenically unsaturated monomer carrying acid groups wherein the absorptive, crosslinked polymeric composition further includes an antioxidant and is color stable.

Method for manufacturing carboxyl group-containing water-soluble polymer

In manufacturing of a carboxyl group-containing water-soluble polymer by a precipitation polymerization method, a method which can improve production efficiency with increasing practicality continuously adds a monomer solution wherein a monomer component containing an α,β-unsaturated carboxylic acid is dissolved in an inert solvent in a concentration of 20 to 50% by volume to an inert solvent charged in a reaction vessel. In this case, the amount of the inert solvent charged in the reaction vessel is set so that the concentration of the monomer component in the total amount summed up with the monomer solution is 10 to 24% by volume, and the time period until completion of continuous addition of the total amount of the monomer solution is set so that the conversion of the monomer component at the time of completion of addition of the total amount of the monomer solution is 60% or more. The monomer component may contain a polymerizable compound having two or more ethylenically unsaturated groups.

Method for Producing Post-Cured Water-Absorbent Polymer Particles with a Higher Absorption by Polymerizing Droplets of a Monomer Solution

A process for preparing postcrosslinked water-absorbing polymer beads with high absorption by polymerizing droplets of a monomer solution in a gas phase surrounding the droplets, wherein the solids content of the monomer solution is at least 35% by weight and the polymer beads have a mean diameter of at least 150 μm.

Polyurethane-modified acrylic resin and preparing method thereof

A polyurethane-modified acrylic resin and a preparing method thereof are disclosed. The polyurethane-modified acrylic resin is prepared through the following steps: preparing a monomer with double bond and urethane group by means of a reaction of isocyanate, hydroxylalkyl acrylate and aliphatic alcohol, and then copolymerizing the monomer with acrylate monomer. The polyurethane-modified acrylic resin of the present invention contains a urethane structure, has the features of both polyurethane and acrylic resin, and is soluble in alcohol or ester solvent. An ink, a laminating adhesive, a metal surface-protective coating and a gloss varnish for woodware produced from the resin as well as the preparing methods thereof are also disclosed.

Process for producing fluorinated copolymers of (meth)acrylates and (meth)acrylic acid amine complexes

A process for producing copolymers of (meth)acrylates:(meth)acrylic acid amine complexes useful for hard surfaces having increased performance for stain resistance, oil and water repellency properties.

Use of a copolymer in the form of a solubiliser for a poorly water-soluble compound

The use of copolymers obtained by free-radical polymerization of a mixture of i) 30 to 80% by weight of N-vinyllactam, ii) 10 to 50% by weight of vinyl acetate, and iii) 10 to 50% by weight of a polyether, with the proviso that the total of components i), ii) and iii) equals 100% by weight, as solubilizers for slightly water-soluble substances.

Particulate water absorbent and process for production thereof

A particulate water absorbing agent of the present invention is a water absorbing agent containing a water absorbing resin as a main component, the particulate water absorbing agent containing a polyvalent metal cation and satisfying: (1) the polyvalent metal cation is contained in an amount between 0.001 wt % and 5 wt % relative to the amount of the water absorbing agent; (2) an absorbency without pressure (CRC) is not less than 28 (g/g) and an absorbency against pressure (AAP 4.83 kPa) is not less than 10 (g/g); (3) the absorbency against pressure and the absorbency without pressure satisfy 77≦AAP (4.83 kPa)+1.8×CRC≦100; and (4) a moisture content of the water absorbing agent is between 5 wt % and 20 wt %. This provides a water absorbing agent which has blocking resistance after moisture absorption, is excellent in stability to shock and suppresses Re-Wet when used in a diaper.

Method for re-wetting surface post-cross-linked, water-absorbent polymer particles

A process for producing water-absorbing polymer particles, wherein surface postcrosslinked water-absorbing polymer particles are remoisturized and classified, and wherein the time between remoisturization and classification is at least 15 minutes.

Low molecular weight phosphorus-containing polyacrylic acids and use thereof as dispersants

An aqueous solution of acrylic acid polymers having a total phosphorus content of organically and possibly inorganically bound phosphorus, wherein (a) a first portion of the phosphorus is present in the form of phosphinate groups bound within the polymer chain, (b) a second portion of the phosphorus is present in the form of phosphinate and/or phosphonate groups bound at the polymer chain end, (c) possibly a third portion of the phosphorus is present in the form of dissolved inorganic salts of phosphorus, wherein at least 76% of the total phosphorus content is present in the form of phosphinate groups bound within the polymer chain.

Orthopedic implants having gradient polymer alloys

Orthopedic implants having a bone interface member and a water swellable IPN or semi-IPN with a stiffness, hydration, and/or compositional gradient from one side to the other and physically attached to the bone interface member. The invention also includes an orthopedic implant system including an implant that may conform to a bone surface and a joint capsule. The invention also includes orthopedic implants with water swellable IPN or semi-IPNs including a hydrophobic thermoset or thermoplastic polymer first network and an ionic polymer second network, joint capsules, labral components, and bone interface members. The invention also includes a method of inserting an orthopedic implant having a metal portion and a flexible polymer portion into a joint, including inserting the implant in a joint in a first shape and changing the implant from a first shape to a second shape to conform to a shape of a bone.

Silicone hydrogel with high water content

The present invention provides a silicone hydrogel comprising a reaction product of a monomer mixture for forming the silicone hydrogel and water, wherein the water is present in an amount not less than 50 wt % based on the total weight of the silicone hydrogel. The monomer mixture comprises at least one silicon-containing monomer and at least one ionic monomer, wherein the ionic monomer is present in an amount not less than 0.7 wt % based on the total dry weight of the silicone hydrogel. The present invention also provides ocular articles made from the silicone hydrogel.

Acrylic polymer

The present invention relates to acrylic emulsion polymers having excellent hair styling properties as well as their use in hair care preparations in particular hair styling preparations.

Process for Continuously Producing Water-Absorbing Polymer Particles

A process for continuously producing water-absorbing polymer particles, in a continuous polymerization reactor, wherein the amount of initiator used and/or the intensity of the UV radiation optionally used to initiate the polymerization is reduced after the startup of the polymerization reactor.

Polyacrylic acid (salt), polyacrylic acid (salt)-based water-absorbing resin, and process for producing same

A polyacrylic acid (salt), or a polyacrylic acid (salt)-based water-absorbing resin, contains a tracer for detecting various troubles in the water-absorbing resin during the period from the production of the water-absorbing resin to the use and discard thereof by a consumer. The polyacrylic acid (salt)-based water-absorbing resin has a stable carbon isotope ratio, as determined by accelerator mass spectrometry, of less than −20% and a radioactive carbon content of 1.0×10 −14 or mole. The polyacrylic acid (salt)-based water-absorbing resin has: a CRC of 10 [g/g] or mole; an AAP of 20 [g/g] or mole; an Ext of 35 wt. % or less; a content of residual monomers of 1,000 ppm or less; a PSD in which the proportion of particles having a particle diameter of 150 μm or larger but less than 850 μm is 90 wt. % or more; and an FSR of 0.15 [g/g/s] or more.

Process for producing an aqueous binder system

The invention provides aqueous binder systems comprising at least one polymeric carboxylic acid, at least one saccharide compound and at least one alkanolamine having at least two hydroxyl groups.

Antifouling paint composition, production method of antifouling paint film, and antifouling paint film

The present invention provides an antifouling paint composition, by which a paint film can be formed using a small amount of an organic solvent, in which the strength and the self-abradability can be maintained for a long period, and by which a paint film having an excellent antifouling property can be formed. The antifouling paint composition according to the present invention contains an acrylic polymer (P), a radical polymerizable monomer (M) and an organic peroxide (O), wherein at least one of the acrylic polymer (P) and the radical polymerizable monomer (M) has a bivalent metal ester structure.

Dendritic comb-shaped polymer thickening agent, preparaton of the same and application thereof

The present invention relates to a dendritic comb-shaped polymer thickening agent and preparation and application thereof; it is a copolymer obtained by copolymerization of monomer (A) and monomer (B). Monomer (A) is one or more water-soluble unsaturated monomers with olefin chain, and monomer (B) is at least one monomer with the following general structure: wherein R 1 , R 2 is selected from H or C 1 ˜C 12 alkyl group, respectively; R 3 , R 4 , R 5 is selected from H or C 1 ˜C 8 alkyl group, C 1 ˜C 8 alkylaryl group, C 1 ˜C 8 alkyl ether or C 1 ˜C 8 alkyl ester group, respectively; A′ is selected from COO − or OH. The content of the monomer (A) is 70˜99.99% of the total mass of the monomer (A) and the monomer (B), and the content of monomer (B) is 0.01˜30% of the total mass of the monomer (A) and the monomer (B). The viscosity of the polymer solution with the present polymer is 30% higher than that with common polyacrylamide and it is used in polymer flooding for oil reservoir with permeability lower than 400 mD in oilfields.

Method for producing a water-absorbent resin

A method for producing a water-absorbent resin comprising at least two stages of reversed-phase suspension polymerization, wherein the first stage of the at least two stages of reversed-phase suspension polymerization comprises the following steps of: (A) performing a primary dispersion by stirring to mix in the absence of surfactants an aqueous solution of a water-soluble ethylenically unsaturated monomer containing a hydrophilic polymeric dispersion agent with a petroleum hydrocarbon dispersion medium in which a hydrophobic polymeric dispersion agent dissolves or disperses; (B) further performing a secondary dispersion by adding a surfactant to the resultant dispersion liquid; and (C) performing a polymerization by using a water-soluble radical polymerization initiator to obtain a water-absorbent resin as particles in a hydrous gel state which disperse in the petroleum hydrocarbon dispersion medium, and a water-absorbent resin obtained by the method.

Binder for lithium ion secondary battery electrode, slurry obtained using the binder for electrode, electrode obtained using the slurry, and lithium ion secondary battery using the electrode

An object of the present invention is to provide: a binder for a lithium ion secondary battery electrode, which is water-dispersible type and has favorable adhesion between active materials and between the active material and current collectors, along with charge-discharge high-temperature cycle characteristics; a slurry using the binder; an electrode using the slurry; and a lithium ion secondary battery using the electrode. The present invention relates to a binder composition for a lithium ion secondary battery electrode, which is obtained by emulsion polymerization of an ethylenically unsaturated monomer in the presence of a surfactant, the ethylenically unsaturated monomer containing, as essential constituents, 15 to 70 mass % of styrene with respect to the total mass of ethylenically unsaturated monomers, an ethylenically unsaturated carboxylic acid ester, an ethylenically unsaturated carboxylic acid and an internal cross-linking agent.

Powder Coated Carrier

The instant disclosure describes methods for preparing latex resins for coated carriers using surfactant partitioning, which resins exhibit both lower ζ potential and greater latex stability, while not adversely affecting particle size, toner charge or other metrics.

Method for producing a water-absorbent resin

A method for producing a water-absorbent resin by performing a reversed-phase suspension polymerization of a water-soluble ethylenically unsaturated monomer in a petroleum hydrocarbon dispersion medium, comprising the following steps of: (A) performing a primary dispersion in the absence of surfactants by adding an aqueous solution of a water-soluble ethylenically unsaturated monomer containing a hydrophilic polymeric dispersion agent to a petroleum hydrocarbon dispersion medium in which a hydrophobic polymeric dispersion agent was heat-dispersed or heat-dissolved, under stirring; (B) further performing a secondary dispersion by adding a surfactant to a dispersion liquid obtained after the primary dispersion; and (C) performing the reversed-phase suspension polymerization by using a radical polymerization initiator; and the water-absorbent resin obtained by the method.

Method for producing a water-absorbent resin

A method for producing a water-absorbent resin having a further reduced odor as compared with a water-absorbent resin obtained by a conventional method as well as a water-absorbent resin produced by the same method, by maintaining the addition rate V from the pouring nozzle for the aqueous solution of the water-soluble ethylenically unsaturated monomer in a polymerization reaction tank not more than 0.30 [min −1 ], in the first stage polymerization step which is within the step of the conventional method upon performing multi-stages such as two or more stages of reversed-phase suspension polymerizations in a method for producing a water-absorbent resin, and thereby by being able to reduce the amount of the petroleum hydrocarbon dispersion medium remaining in the above water-absorbent resin.

Process for producing carboxyl-containing polymer composition, and carboxyl-containing poylmer compostion

A process is disclosed for producing a carboxyl-containing polymer composition that allows the possibility of obtaining a carboxyl-containing polymer composition which exhibits excellent dispersibility in water or the like, has a viscosity increasing to a lower degree compared to the viscosity of a neutralized viscous liquid using an additive-free carboxyl-containing polymer, and has a high degree of transparency in a neutralized viscous liquid thereof. A carboxyl-containing polymer composition is obtained by polymerizing a monomer containing an α,β-unsaturated carboxylic acid as a main component in a presence of a polyol (iso)stearic acid ester. A polyol in the polyol (iso)stearic acid ester is a polyol selected from a specific group, and the polyol (iso)stearic acid ester is used in the polymerization in an amount of 0.2 to 7 parts by mass based on 100 parts by mass of the α,β-unsaturated carboxylic acid.

Process for superabsorbent polymer and crosslinker composition

The present invention further relates to a process to make a superabsorbent polymer comprising the steps of a) preparing a neutralized monomer solution comprising a polymerizable monomer selected from unsaturated acid groups-containing monomers, ethylenically unsaturated carboxylic acid anhydride, salts, or derivatives thereof and a caustic agent selection from an alkali agent, wherein the polymerizable monomer is neutralized to from about 50 mol % to about 85 mol %; b) forming a crosslinker monomer mixture by adding an internal crosslinker composition to the neutralized monomer solution wherein the internal crosslinking composition is the reaction product of a stoichiometric excess of amine with a glycidyl compound, wherein the internal crosslinker composition has a residual amount of glycidyl compounds of less than about 500 ppm based on the mass of the internal crosslinker composition; and c) polymerizing the crosslinker monomer mixture to make a superabsorbent polymer.

Copolymers of isoprenol, monoethylenically unsaturated monocarboxylic acids and sulfonic acids, methods for production thereof and use thereof as deposit inhibitors in water-bearing systems

The invention relates to a copolymer of (a) 5 to 40% by weight of isoprenol, (b) 5 to 93% by weight of at least one monoethylenically unsaturated C 3 to C 8 monocarboxylic acid, an anhydride or salt of same, (c) 2 to 90% by weight of one or more sulfonic acid group-comprising monomers.

Monomer composition containing unsaturated polyalkylene glycol ether-based monomer, method for producing composition thereof, polymer obtained using composition thereof, and method for producing polymer thereof

To provide a monomer composition containing an unsaturated polyalkylene glycol ether-based monomer and having excellent stability. Provided is a monomer composition containing an unsaturated polyalkylene glycol ether-based monomer represented by the following chemical formula (1): YO(R 1 O) n R 2   (1) [in the formula, Y represents an alkenyl group having 2 to 7 carbon atoms; R 1 O represents one or two or more types of oxyalkylene groups having 2 to 18 carbon atoms; n represents an average addition mole number of oxyalkylene groups and is a number of 5 to 500; and R 2 represents a hydrogen atom or a hydrocarbon group having 1 to 30 carbon atoms], an organic acid, and water, and having a pH of 4 to 13.

Method for dispersing and aggregating components of mineral slurries and high-molecular weight multivalent polymers for clay aggregation

The disclosure relates generally to the use of polymers to assist in aggregating mineral components in aqueous mineral slurries to release and separate individual components of the slurry, which may then be recovered from the slurry.

Novel polymeric thickening agent free of acrylamide fragments, method for the preparation thereof, and composition containing same

A composition including an oil phase, an aqueous phase, at least one water-in-oil emulsifying system in the form of a positive latex, characterized in that the composition includes a straight, branched, or cross-linked anionic polyelectrolyte, including: a) a non-zero molar proportion of monomer units from acrylic acid in free or partially salified form; and b) a non-zero molar proportion of monomer units from the acid of formula (I): CH 2 ═CH—C(═O)—O—[CH 2 —CH2—C(═O)—O] n —H  (I), where n is a number greater than or equal to (1) and less than or equal to (5), in free or partially salified form. A method for preparing the same, a polymer powder, and the use thereof as a thickening agent for cosmetic or pharmaceutical compositions are also described.

Polymer dispersant for image display particles, image display particles, dispersion liquid for image display particles, display medium, and display device

A polymer dispersant for image display particles, including a copolymer having a repeating unit derived from a polymer component with a silicone chain, a repeating unit derived from a hydrophobic polymer component other than the polymer component with a silicone chain, and a repeating unit derived from a polymer component with a polyalkylene glycol structure.

Process for Producing Silver Nanowires and Agent for Controlling Growth of Silver Nanowires

Provided is a process for silver nanowire production in which the major-axis length of the silver nanowires can be controlled in a wide range and an agent for controlling the growth of silver nanowires. A process for silver nanowire production which is characterized in that an agent for controlling the growth of silver nanowires which comprises a polymer obtained by polymerizing one or more polymerizable monomers comprising an N-substituted (meth)acrylamide is reacted with a silver compound in a polyol at 25-180° C. The agent for controlling the growth of silver nanowires is characterized by comprising a polymer which has units of an N-substituted (meth)acrylamide as a polymerizable monomer.

Catalysts For The Conversion Of Hydroxypropionic Acid Or Its Derivatives To Acrylic Acid Or Its Derivatives

Catalysts for dehydrating hydroxypropionic acid, hydroxypropionic acid derivatives, or mixtures thereof to acrylic acid, acrylic acid derivatives, or mixtures thereof with high yield and selectivity, short residence time, and without significant conversion to undesired side products, such as, for example, acetaldehyde, propionic acid, and acetic acid, are provided. The catalysts are mixed condensed phosphates. Methods of preparing the catalysts are also provided.

Catalytic Conversion Of Lactic Acid To Acrylic Acid

Disclosed herein is the catalytic dehydration of lactic acid to acrylic acid, which is characterized by a high conversion of lactic acid, a high selectivity for acrylic acid, a high yield of acrylic acid, and correspondingly low selectivity and molar yields for undesired by-products. This is achieved with a particular class of catalysts defined by a mixture of metal-containing phosphate salts that together provide the catalyst with a very high basicity density and low acidity density. Further, the catalyst is believed to be stable and active for lengthy periods heretofore unseen in the art for such dehydration processes.

Film-forming material

There is provided a novel material used for solar cells that can contribute to the improvement in maximum output of solar cells without using the conventional MPPT system. A film-forming material for forming a light-collecting film on a transparent electrode of a solar cell, including an aromatic group-containing organic polymer compound (A) and a cross-linker (B), wherein the film-forming material exhibits an index of refraction of 1.5 to 2.0 at a wavelength of 633 nm and a transmittance of 95% or more with respect to light having a wavelength of 400 nm, and a solar cell obtained by coating a cured film made from the film-forming material on a surface of a transparent electrode.

Hard coat coating composition for metal base material and molded product

A hard coat coating composition for a metal base material, includes a coated film forming component including a urethane(meth)acrylate (A) having a carboxyl group and having a solid fraction acid value being value of 0.5 to 2.0 mgKOH/g, a urethane(meth)acrylate (B) not having a carboxyl group, a thermoplastic resin (C) having a carboxyl group and having a solid fraction acid value of 1.0 to 30 mgKOH/g, and a silane coupling agent (D).

MOLECULARLY IMPRINTED POLYMERS HAVING AFFINITY FOR NATRIURETIC PEPTIDES

The present invention concerns molecularly imprinted polymers (MIPs) having an affinity for natriuretic peptides, such as atrial natriuretic peptide (ANP). In some embodiments, the MIP is a nanoparticle (a molecularly imprinted polymeric nanoparticle (MIPNP)). Other aspects of the invention include methods of preparing an MIP having affinity for a natriuretic peptide, methods for binding a natriuretic peptide in vitro or in vivo using an MIP of the invention, methods for interfering with the binding of a natriuretic peptide with its receptor in vivo, methods for reducing inflammation, cell growth, cell differentiation, or a cell proliferation disorder, methods for detecting natriuretic peptides, and devices and kits for sequestering and/or detecting natriuretic peptides. 1. A composition of matter , comprising:(a) a molecularly imprinted polymer (MIP) having affinity for a natriuretic peptide or a fragment thereof; or(b) a pharmaceutical composition comprising an MIP of (a), and a pharmaceutically acceptable carrier; or(c) a device for sequestering or detecting natriuretic peptides, comprising a substrate with an MIP of (a) attached thereto; or(d) a kit for sequestration and/or detection of one or more natriuretic peptides, comprising, in one or more separate containers, one or more MIPs of (a).2. The composition of claim 1 , wherein the composition is (a) claim 1 , and wherein the MIP is a nanoparticle.3. The composition of claim 1 , wherein the composition is (a) claim 1 , and wherein the natriuretic peptide is atrial natriuretic peptide (ANP (SEQ ID NO:3)).4. The composition of claim 1 , wherein the composition is (a) claim 1 , and wherein the natriuretic peptide is selected from among atrial natriuretic peptide (ANP (SEQ ID NO:3); amino acids 99-126 of pro-ANP) claim 1 , long-acting natriuretic peptide (LANP (SEQ ID NO:7); amino acids 1-30 of pro-ANP) claim 1 , vessel dilator (VD (SEQ ID NO:8); amino acids 31-67 of pro-ANP) claim 1 , kaliuretic peptide (KP (SEQ ...

Odour-Control Superabsorbent

Superabsorbents comprising fluorofamide exhibit superior odour control without being biocides.

ULTRASONIC-ASSISTED MOLDING OF PRECISELY-SHAPED ARTICLES AND METHODS

An ultrasonic-assisted injection molding system and method for making precisely-shaped articles. A source of ultrasonic energy is positioned to apply vibrational energy to a mold cavity connected to at least one gate in flow communication with a source of molten (co)polymer. The mold is heated to a temperature of 104-116° C., and the molten (co)polymer is injected into the mold cavity. After cooling the mold until the molten (co)polymer within the gate has solidified, ultrasonic energy is applied to the mold without remelting the solidified (co)polymer within the gate until the temperature increases to 116-122° C., thereby substantially relieving flow induced stresses. The mold is then cooled until the temperature decreases to 101-107° C., and is thereafter heated until the temperature increases to 116-122° C., thereby substantially relieving any thermally induced stresses. The mold is cooled until the molten (co)polymer has solidified, thereby forming a precision molded plastic optical element. 1. A molding method , comprising:providing an injection mold having a first mold member and at least one movable mold member that can move toward and away from the first mold member to close the mold, wherein a mold cavity is formed in at least one of the first or movable mold members, the cavity having at least one gate therein, and further wherein a source of ultrasonic energy is positioned to apply ultrasonic energy to the cavity;closing the mold, whereby the at least one gate is fluidly connected to a source of molten (co)polymer;heating the mold to a mold temperature measured adjacent to the cavity of from 104° C. to 116° C.;thereafter injecting the molten (co)polymer into the cavity through the at least one gate of the closed mold to substantially fill the cavity and the gate with the molten (co)polymer;allowing the closed mold to cool until the molten (co)polymer within the gate has solidified;applying ultrasonic energy from the source of ultrasonic energy to the ...

Black resin composition, resin black matrix substrate, and touch panel

Disclosed is a black resin composition with which a black matrix having high insulation properties even after heat treatment at a high temperature and, in addition, achromatic reflection properties can be readily formed. The black resin composition comprises (A) a light-shielding material, (B) an alkali-soluble resin, and (C) an organic solvent, and comprises (A-1) a carbon black and (A-2) titanium nitride compound particles as the light-shielding material (A). The carbon black (A-1) is surface-treated with a sulfur-containing compound, and in the surface composition, the percentage of carbon atoms is 95% or less and the percentage of sulfur atoms is 0.5% or more.

Personal care compositions

Personal care compositions comprising, as thickeners and suspending agents, crosslinked alkali swellable polyacrylates containing one or more acetoacetyl or cyanoacetyl groups.

USE OF A COMB POLYMER FOR PREPARING A SUSPENSION COMPRISING CALCIUM CARBONATE AND HAVING A SENSITIVITY TO REDUCED TEMPERATURE

The invention relates to the use of a comb polymer for preparing a slurry, said slurry comprising calcium carbonate, the viscosity of said aqueous slurry as measured by a HAAKE Rheostress rheometer ranging from 25 to 1000 mPa·s measured at 20° C. and at 90° C. 117.-. (canceled)19. In a method of reducing the temperature sensitivity of an aqueous slurry comprising water and calcium carbonate by adding an agent thereto , the improvement wherein said agent is a comb copolymer , wherein{'sub': sp', 'sp, 'the specific viscosity of said comb copolymer measured at 20° C. and at a concentration of 45 g/l differs from the specific viscosity of said comb copolymer measured at 70° C. by a specific viscosity difference Δη, wherein the absolute value of Δηis less than or equal to 0.5,'}said comb copolymer does not have a cloud point between 20° C. and 95° C. measured in water,said comb copolymer has a specific charge from −10 C/g to −600 C/g at pH 8,{'sup': '−1', 'and wherein the comb copolymer is present in said slurry in an amount sufficient to provide said slurry with a viscosity at 20 sranging from 25 to 1000 mPa·s measured at 20° C. and at 90° C.'}20. The method according to claim 19 , wherein said copolymer has a specific charge from −10 C/g to −550 C/g at pH 8.21. The method according to claim 19 , wherein said copolymer has a negatively-charged backbone consisting in randomly polymerized monomers of acrylic acid and methacrylic acid and wherein the percentage by weight of monomers of methacrylic acid is more than the percentage by weight of monomers of acrylic acid and non-charged side chains consisting in polymerized epoxide-containing compounds.22. The method according to claim 19 , wherein said comb copolymer comprises:a) acrylic acid and methacrylic acid monomers, wherein the percentage by weight of monomers of methacrylic acid is higher than the percentage by weight of monomers of acrylic acid, and {'br': None, 'R-X-R′\u2003\u2003(I)'}, 'b) at least one macromonomer ...

Use and application of defined zwitterionic copolymer

The present invention relates to the use and application of a water-soluble or water-dispersible agglomerating copolymer which can be used in cleaning operations.

Polymer of maleic acid, allyl ether and (meth)acrylic acid compounds, and preparation and use thereof

The invention relates to comb polymers of maleic acid or derivatives thereof, allyl ethers and (meth)acrylic acid or derivatives thereof, and to the preparation thereof by free radical polymerization at a reaction temperature of 10° C. to 50° C. The invention further relates to the use of such comb polymers for improving the processability of hydraulically setting compositions.

Preparation method of superabsorbent polymer

The present invention relates to a method of preparing a superabsorbent polymer, including the steps of: preparing a hydrous gel phase polymer by thermal polymerizing or photo-polymerizing a monomer composition including a water-soluble ethylene-based unsaturated monomer and a polymerization initiator; drying the hydrous gel phase polymer; milling the dried polymer; adding a surface cross-linking agent to the milled polymer; and elevating the temperature of the polymer including the surface cross-linking agent at a speed of 3° C./min to 15° C./min, and carrying out a surface cross-linking reaction at 100° C. to 250° C.

Laundry detergents and cleaning compositions comprising carboxyl group-containing polymers

The present invention relates to a laundry detergent or a cleaning composition, preferably a granular detergent product, comprising a carboxyl-group containing polymer, which is useful in improving whiteness and/or anti-soil redeposition. Processes for making and methods of using the laundry detergent or cleaning composition are also encompassed by the present invention.

Comb polymers as dispersants for alkaline activated binders

A comb polymer that is a dispersant in a binder composition includes an alkaline activating agent, wherein the activating agent is intended for activation of a latently hydraulic and/or puzzolanic binder, and wherein the comb polymer has a polymer backbone formed from a plurality of backbone monomers and a plurality of polymeric side chains each formed from a plurality of side chain monomers and bonded thereto, and wherein at least some of the backbone monomers have one or more ionizable groups, and features a structure constant K of the comb polymer, defined as K=[(N−1)z] 2 /nP 915 N 3/5 ×10 5 , at least equal to 70, where n is the average number of side chains per comb polymer molecule, N is the average number of backbone monomers per side chain, P is the average number of side chain monomers per side chain, and z is the average number of ionizable groups per side chain-free backbone monomer.

Compositions for Grafting Fragrance Substances

This disclosure relates to composition for grafting fragrance substances, as well as related articles, consumer products, and methods. 1. A composition , comprising:a fragrance;a coupling agent;a polymerizable prepolymer;a graft initiator; anda catalyst.2. The composition of claim 1 , wherein the coupling agent is a silane of formula (I):{'br': None, 'sub': 1', '2', '3', '4, 'Si—RRRR\u2003\u2003(I),'}{'sub': 1', '1', '10', '2', '10', '2', '3', '4', '1', '10', '1', '10', '6', '30, 'in which Ris C-Calkyl or C-Calkenyl, and each of R, R, and R, independently, is C-Calkyl, C-Calkoxy, or C-Caryl.'}3. The composition of claim 2 , wherein Ris vinyl and each of R claim 2 , R claim 2 , and Ris methoxy.4. The composition of claim 1 , wherein the composition comprises from 0.1 ppm to 5000 ppm of the coupling agent.5. The composition of claim 1 , wherein the polymerizable prepolymer comprises a polyalkylene prepolymer claim 1 , a urethane prepolymer claim 1 , an acrylic prepolymer claim 1 , an epoxy prepolymer claim 1 , a bisphenol A prepolymer claim 1 , a silicone prepolymer claim 1 , a polyester prepolymer claim 1 , a polyalkylene glycol prepolymer claim 1 , a polycarbodiimide prepolymer claim 1 , a polydiene prepolymer or a phenolic prepolymer.6. The composition of claim 5 , wherein the prepolymer comprises an isobutylene/butylene copolymer.7. The composition of claim 1 , wherein the composition comprises from 2 wt % to 50 wt % of the prepolymer.8. The composition of claim 1 , wherein the graft initiator comprises a salt of Ag claim 1 , Fe claim 1 , Co claim 1 , or Cu claim 1 , or a mixture thereof.9. The composition of claim 8 , wherein the graft initiator comprises silver perchlorate.10. The composition of claim 1 , wherein the composition comprises from 0.01 ppm to 10 ppm of the graft initiator.11. The composition of claim 1 , wherein the catalyst comprises a peroxide claim 1 , a peracid claim 1 , a perbenzoate claim 1 , a metabisulfite claim 1 , a persulfate claim 1 , or ...

NON-IONIC DEEP EUTECTIC MIXTURES FOR USE AS SOLVENTS AND DISPERSANTS

Use of a non-ionic deep eutectic mixture consisting of A and B, A being R1R2N—CO—NR3R4 and B being selected from the group consisting of R5R6N—CO—CH3 and R7R8N—CO—NR9R10, and wherein each of R1-R10 is independently H, CH3 or alkyl, as a solvent or dispersant in chemical synthesis, material synthesis or fabrication, chemical or enzymatic catalysis, food, cosmetic or pharmaceutical formulation, separation or partitioning, heat transfer, and as detergents or cleaners, as well as such mixtures, is disclosed. 1. A method comprising using a non-ionic deep eutectic mixture consisting of A and B , A being RRN—CO—NRRand B being selected from the group consisting of RRN—CO—CHand RRN—CO—NRR , and wherein each of R-Ris independently H , CH3 or alkyl , as a solvent or dispersant in chemical synthesis , material synthesis or fabrication , chemical or enzymatic catalysis , food , cosmetic or pharmaceutical formulation , separation or partitioning , heat transfer , and as detergents or cleaners.2. The method according to claim 1 , wherein B is RRN—CO—CH claim 1 , wherein Rand Rare CHor alkyl claim 1 , R claim 1 , R claim 1 , and Rare H claim 1 , and Ris H or CHor alkyl.3. The method according to claim 1 , wherein B is RRN—CO—NRR claim 1 , wherein Rand Ris H or CHor alkyl claim 1 , Rand Ris H claim 1 , Ris CHor alkyl claim 1 , Ris H claim 1 , and Rand Ris H or CHor alkyl.4. The method according to claim 1 , wherein the mixture contains 30-80% by weight of A and 70-20% by weight of B.5. The method according to claim 1 , wherein the melting point of the mixture is 8-99° C. claim 1 , such as 8-71° C. claim 1 , such as 12-46° C.6. The method according to claim 1 , wherein Ris CH claim 1 , Rand Ris H and Ris H or CH.7. The method according to claim 6 , wherein B is RRN—CO—CH claim 6 , Ris H claim 6 , and Ris CHor H claim 6 , preferably CH.8. The method according to claim 7 , wherein the mixture contains 70-80% by weight of A and 30-20% by weight of B.9. The method according to claim 6 , ...

USE OF FLUORESCENT POLYMERS IN MARKING COMPOSITIONS FOR THE DIAGNOSTIC DETERMINATION OF CLEANING PERFORMANCE

The present invention generally relates to fluorescent marking compositions and their use to determine whether a surface has been cleaned. More particularly, the marking compositions comprise fluorescent polymers. 135.-. (canceled)38. The composition of claim 37 , whereinthe fluorescent monomer unit has the structure (I) and is 4-methoxy-N-(3-N′,N′-dimethylaminopropyl)naphthalimide vinyl benzyl chloride quaternary salt, 4-methoxy-N-(3-N′,N′-dimethylaminopropyl)naphthalimide 2-hydroxy-3-allyloxypropyl chloride quaternary salt, or 4-methoxy-N-(3-N′,N′-dimethylaminopropyl)naphthalimide allyl chloride quaternary salt;the fluorescent monomer unit has the structure (II) and is N-allyl-4-(2-N′,N′-dimethylaminoethoxy)naphthalimide methyl sulfate quaternary salt; orthe fluorescent monomer unit has the structure (III) and is 5-allyloxy-4′-carboxy-1,8-naphthoylene-1′,2′-benzimidazole or 6-vinylbenzyloxy-4′-carboxy-1,8-naphthoylene-1′,2′-benzimidazole.40. The composition of claim 39 , whereinthe fluorescent monomer unit has the structure (IV) and is sulfonated-N-(3-N′,N′-dimethylaminopropyl)benzo (k,l) xanthene-3,4-dicarboxylic imide 2-hydroxy-3-allyloxypropyl quaternary salt, sulfonated-N-(3-N′,N′-dimethylaminopropyl)benzo (k,l) xanthene-3,4-dicarboxylic imide vinyl benzyl chloride quaternary salt, or sulfonated-N-(3-N′,N′-dimethylaminopropyl)benzo (k,l) xanthene-3,4-dicarboxylic imide allyl chloride quaternary salt; orthe fluorescent monomer unit has structure (V) and is N-(3-N′,N′-dimethylaminopropyl)benzo (k,l) xanthene-3,4-dicarboxylic imide allyl chloride quaternary salt.43. The composition of claim 42 , wherein the polymer has the formula GQWor GQWSand wherein Q is acrylic acid; the polymer has the formula GQWand wherein Q is acrylic acid and W is acrylamide; the polymer has the formula GQWand wherein Q is acrylic acid and W is 2-acrylamido-2-methylpropane sulfonic acid; or the polymer has the formula the GQWSand wherein Q is acrylic acid claim 42 , W is acrylamide claim ...

POLYMERS FOR METAL SURFACE TREATMENT

The instant invention concerns polymers obtained by radical copolymerization of a mixture of (1) acrylic acid; (2) methacrylic acid; and (3) at least one allylcatechol selected from 4-allylbenzene-1,2-diol, 3-allylbenzene-1,2-diol and mixtures thereof. The polymers are especially useful for treating a metallic surface intended to be coated by a paint, a varnish or an adhesive. The invention also concerns methods of coatings making use of this polymer P, compositions comprising the polymer P and useful for these methods, and the obtained coated materials. 2. The polymer P of claim 1 , wherein the at least one allylcatechol is a mixture of 4-allylbenzene-1 claim 1 ,2-diol and 3-allylbenzene-1 claim 1 ,2-diol.3. The polymer P of that have wherein the polymer has a molecular weight between 10 and 150 kDa.4. The polymer P of claim 1 , wherein the polymer contains acrylic acid (AA) at a content of 10 to 90% in mol; methacrylic acid (MAA) at a content of 1 to 70% in mol claim 1 , and allylcatechol at a content of 1 to 20% in mol claim 1 , each of the molar ratio being calculated on the basis of the total quantity of AA claim 1 , MAA and allylcatechol.5. A method claim 1 , comprising treating a metallic surface intended to be coated by a paint claim 1 , a varnish or an adhesive with at least one polymer P as defined in .6. The method of claim 5 , wherein the metal surface is a surface comprising a metal selected from the group consisting of aluminum claim 5 , steel claim 5 , zinc claim 5 , magnesium and their alloys.7. The method of claim 5 , wherein a conversion composition a is applied on the metallic surface for forming a conversion coating thereon claim 5 , and wherein:said conversion composition include all or part of the polymer P as an additive; and/orthe conversion coating is applied on the metallic surface, and then all or part of the polymer P is applied on the conversion coating.8. The method according to claim 5 , wherein all or part of the polymer P is present ...

METHOD FOR PRODUCING WATER ABSORBENT RESIN

[Object] To provide a method for producing a water-absorbent resin in powder form or particle form, which has excellent physical properties such as water absorption performance and the like, at high productivity. 1. A method for producing a water-absorbent resin comprising:a polymerization step of polymerizing a monomer, which is a raw material of the water-absorbent resin, to obtain a hydrous gel crosslinked polymer dispersed in an organic solvent; anda separation step of separating the organic solvent and the hydrous gel crosslinked polymer from each other, whereinthe separation step includes transfer, compression, and discharge of the hydrous gel crosslinked polymer.2. The method according to claim 1 , wherein claim 1 , in the separation step claim 1 , the hydrous gel crosslinked polymer is squeezed while being transferred.3. The method according to claim 1 , wherein claim 1 , in the separation step claim 1 , the organic solvent is transferred in a direction opposite to a direction in which the hydrous gel crosslinked polymer is transferred.4. The method according to claim 1 , wherein the compression in the separation step is to apply a pressure of not less than 0.1 MPa to the hydrous gel crosslinked polymer.5. The method according to claim 1 , wherein claim 1 , in the separation step claim 1 , a screw extruder including a screw having a compression ratio of not less than 1.5 is used.6. The method according to claim 1 , wherein the hydrous gel crosslinked polymer discharged in the separation step has a residual liquid ratio of not greater than 10% by mass.7. The method according to claim 1 , wherein the organic solvent contains a surfactant and/or a polymeric dispersing agent.8. The method according to claim 1 , wherein the organic solvent separated in the separation step is reused in the polymerization step.9. A reaction device for polymerizing a monomer claim 1 , which is a raw material of a water-absorbent resin claim 1 , by reverse phase suspension ...

NOVEL COPOLYMER AS A WATER-REDUCING AGENT IN A HYDRAULIC COMPOSITION AND USE OF COPOLYMERS FOR IMPROVING THE EARLY MECHANICAL STRENGTH OF A HYDRAULIC COMPOSITION

Novel copolymers obtained by polymerisation a mixture of monomers comprising: at least one anionic monomer (a) comprising a polymerisable unsaturated function and a carboxylic group; and at least one monomer (b) of formula (I): 1. A copolymer obtained by polymerization a monomer mixture comprising:at least one anionic monomer (a) comprising a polymerizable unsaturated function and a carboxylic group; and {'br': None, 'i': H', 'C═C', 'R', 'CH', '—O—', 'EO', 'PO', 'H, 'sub': 2', '1', '2', 'p', 'n', 'm]-, '(—)-()-[()-()\u2003\u2003(I)'}, 'at least one monomer (b) of formula (I)wherein:{'sub': 1', '3, 'Rrepresents a hydrogen atom or a CHgroup;'}p is 1 or 2;{'sub': n', 'm, '[(EO)-(PO)] represents a polyalkoxyl chain made of ethoxyl units EO and propoxyl units PO, distributed in blocks, alternately or randomly;'}m and n represent integers ranging between 1 and 250, the sum of m and n being greater than or equal to 10, with the proviso that the mole proportion of the ethoxyl units in the polyalkoxyl chain (n)/(m+n) is greater than or equal to 70% and strictly less than 90%.2. The copolymer of claim 1 , wherein the monomer (b) has formula (I′):{'br': None, 'i': H', 'C═C', 'R', 'CH', '—O', 'EO', 'PO', 'H, 'sub': 2', '1', '2', 'n', 'm, '(—)-—[()-()]-\u2003\u2003(I′).'}3. The copolymer of claim 1 , wherein monomer (b) has formula (II):{'br': None, 'i': H', 'C═C', 'CH', 'CH', '—O—', 'EO', 'PO', 'H, 'sub': 2', '3', '2', 'n', 'm, '(—)-[()-()]-\u2003\u2003(II).'}4. The copolymer of claim 1 , wherein the mole proportion of the ethoxyl units in the polyalkoxyl chain of monomer (b) is between 70% and 88%.5. The copolymer of claim 1 , wherein the total number of ethoxyl and propoxyl units (m+n) of the polyalkoxyl chain of the monomer (b) is between 10 and 150.6. The copolymer of claim 1 , where the monomer (b) represents from 1 to 50 mol % of the total mole number of monomers that constitute said copolymer.7. The copolymer of claim 1 , wherein the anionic monomer is at least one ...

MOLD RELEASING AGENT

A mold releasing agent is copolymerized with a fluorine-containing monomer, an acrylic ester monomer, and an acid monomer. Whereby, the mold releasing agent has comparable releasing performance and longevity to long-chain copolymers containing halothane. 1. A mold releasing agent , comprising:a fluorine-containing monomer;an acrylic ester monomer; andan acid monomer.2. The mold releasing agent of claim 1 , wherein the fluorine-containing monomer is represented by the general expression CH═C(—X)C(═O)—Y—Z—R claim 1 , where{'sub': 'f', 'X is hydrogen atom, monovalent organic group, halogen atoms, linear or branched perfluoroalkyl with 1 to 21 carbon atoms, or cyano; Y is oxygen atom, sulfur atom, or secondary amine; Z is straight chain alkane, divalent organic group, aromatics or Cycloaliphatic of which carbon-number is 6 to 18, or aliphatic groups of which carbon-number is 1 to 10; Ris linear or branched perfluoroalkyl of which carbon-number is 1 to 21.'}3. The mold releasing agent of claim 1 , wherein the acrylic ester monomer is represented by the general expression CH═CACOOA claim 1 , where{'sub': 1', '2', 'n', '2n+1, 'Ais hydrogen atom, methyl, or halogen atoms other than fluorine atom; Ais CHalkyl, wherein n is between 1 and 30.'}5. The mold releasing agent of claim 1 , further comprising silicon oil.6. The mold releasing agent of claim 5 , wherein the silicon oil is selected from the group consisting of dimethyl silicone oil claim 5 , methyl chloride silicon oil claim 5 , methylphenyl silicone oil claim 5 , and organic denatured silicone oil.8. The mold releasing agent of claim 1 , wherein the acid monomer is selected from at least one member of the group consisting of carboxylic acid claim 1 , phosphate group claim 1 , phosphonic acid group claim 1 , phosphinic acid group claim 1 , sulfate claim 1 , sulfo group claim 1 , and sulfino.9. The mold releasing agent of claim 1 , further comprising Azobisisobutyronitrile or azobisisobutyronitrile HEPTANITRILE.10. The ...

THERMOPLASTIC RESIN COMPOSITION AND MOLDED ARTICLE THEREOF

A thermoplastic resin composition of the present invention comprises: a graft copolymer (A) obtained by polymerizing a vinyl-based monomer mixture (m1) composed of one or more types of vinyl-based monomers, in the presence of a rubber-like polymer (a) having a volume average particle size of 80 to 250 nm; and a vinyl-based copolymer (B) composed of 31 to 50% by mass of a vinyl cyanide-based monomer unit, 50 to 69% by mass of an aromatic vinyl-based monomer unit, and 0 to 30% by mass of another vinyl-based monomer unit, wherein proportions of the graft copolymer (A) and the vinyl-based copolymer (B) are 30 to 70% by mass and 30 to 70% by mass, respectively, with respect to a total of 100% by mass of the graft copolymer (A) and the vinyl-based copolymer (B). 1. A thermoplastic resin composition comprising:a graft copolymer (A) obtained by polymerizing a vinyl-based monomer mixture (m1) composed of one or more types of vinyl-based monomers, in the presence of a rubber-like polymer (a) having a volume average particle size of 80 to 250 nm; anda vinyl-based copolymer (B) composed of 31 to 50% by mass of a vinyl cyanide-based monomer unit, 50 to 69% by mass of an aromatic vinyl-based monomer unit, and 0 to 30% by mass of another vinyl-based monomer unit,wherein proportions of said graft copolymer (A) and said vinyl-based copolymer (B) are 30 to 70% by mass and 30 to 70% by mass, respectively, with respect to a total of 100% by mass of said graft copolymer (A) and said vinyl-based copolymer (B).2. The thermoplastic resin composition according to claim 1 ,wherein said vinyl-based copolymer (B) is composed of 31 to 43% by mass of said vinyl cyanide-based monomer unit, 57 to 69% by mass of said aromatic vinyl-based monomer unit, and 0 to 30% by mass of said another vinyl-based monomer unit.3. The thermoplastic resin composition according to claim 1 , wherein said vinyl-based copolymer (B) has a weight average molecular weight of 80 claim 1 ,000 to 120 claim 1 ,000.4. The ...

HYDROPHOBICALLY MODIFIED ALKALI-SWELLABLE EMULSION POLYMERS

The present technology relates to hydrophobically modified alkali-swellable emulsion polymers that are useful as rheology modifiers. More specifically the present technology relates to hydrophobically modified alkali-swellable emulsion polymers containing residues of a polyunsaturated amphiphilic macromonomer. In one aspect the disclosed polymers are useful for thickening aqueous surfactant containing compositions, while providing the compositions in which they are included excellent rheology properties, clarity, and the ability to stably suspend insoluble and particulate materials over long periods of time. 2. An emulsion polymer of wherein said amphiphilic macromonomer (D) contains at least two polymerizable unsaturated groups.3. An emulsion polymer of wherein said amphiphilic macromonomer (D) contains at least two allyl groups.7. An emulsion polymer of wherein said salt forming cation M is selected from Na claim 6 , K claim 6 , and NH claim 6 , or an alkanolamine.8. An emulsion polymer of wherein said monomer composition further comprises at least one polyunsaturated crosslinking monomer.9. An emulsion polymer of wherein said crosslinking monomer (F) is an acrylate ester of a polyol having at least two acrylate ester groups claim 8 , a methacrylate ester of a polyol having at least two methacrylate ester groups claim 8 , and mixtures thereof.10. An emulsion polymer of wherein said acidic vinyl monomer (A) is selected from acrylic acid claim 1 , methacrylic acid claim 1 , styrenesulfonic acid claim 1 , 2-acrylamido-2-methylpropane sulfonic acid; and salts thereof; and mixtures thereof.11. An emulsion polymer of wherein said salt is selected from an alkali metal salt claim 10 , an alkaline earth metal salt claim 10 , an ammonium salt claim 10 , an alkyl-substituted ammonium salt claim 10 , and mixtures thereof.12. An emulsion polymer of wherein said nonionic vinyl monomer (B) is selected from a C-Calkyl ester of (meth)acrylic acid claim 1 , a hydroxy-substituted C- ...

Absorbent cores having material free areas

An absorbent core, for use in an absorbent article, including a core wrap enclosing an absorbent material and including superabsorbent polymer particles. The core wrap includes a top side and a bottom side, and the absorbent core includes one or more area(s) substantially free of absorbent material through which the top side of the core wrap is attached to the bottom side of the core wrap, so that when the absorbent material swells the core wrap forms one or more channel(s) along the area(s) substantially free of absorbent material. The superabsorbent polymer particles have a time to reach an uptake of 20 g/g (T20) of less than 240 s as measured according to the K(t) test method.

Coating Compositions Containing Acid Functional Polyol Polymers and Coatings Formed Therefrom

A coating composition includes: (a) an acid functional polyol polymer having an acid value of greater than 9 mg KOH/g and less than 60 mg KOH/g, and a hydroxyl value of from 100 to 300 mg KOH/g; (b) a non-aminoplast derived crosslinker reactive with the acid functional polyol polymer; and (c) a non-aqueous liquid medium. Further, an equivalent ratio of functional groups on the crosslinker reactive with hydroxyl functional groups to hydroxyl functional groups on the acid functional polyol polymer is within a range of from 0.5 to 1.5. The coating composition is substantially free of an external catalyst. The coating composition cures at a temperature of less than 80° C. 1. A coating composition comprising:(a) an acid functional polyol polymer comprising an acid value of greater than 9 mg KOH/g and less than 60 mg KOH/g, and a hydroxyl value of from 100 to 300 mg KOH/g;(b) a non-aminoplast derived crosslinker reactive with the acid functional polyol polymer; and(c) a non-aqueous liquid medium,wherein an equivalent ratio of functional groups on the crosslinker reactive with hydroxyl functional groups to hydroxyl functional groups on the acid functional polyol polymer is within a range of from 0.5 to 1.5, andwherein the coating composition is substantially free of an external catalyst, and the coating composition cures at a temperature of less than 80° C.2. The coating composition of claim 1 , wherein the acid functional polyol polymer is obtained from reactants comprising:(i) an ethylenically unsaturated compound comprising acid functional groups, or an anhydride thereof;(ii) an ethylenically unsaturated compound comprising hydroxyl functional groups; and(iii) an ethylenically unsaturated compound that is different from (i) and (ii).3. The coating composition of claim 2 , wherein the ethylenically unsaturated compound comprising acid functional groups comprises: carboxylic acid functional groups claim 2 , or the anhydride thereof; phosphorus acid functional groups; ...

Absorption body and absorptive article

An absorber 10 contains water-absorbent resin particles 10a and a fibrous substance, a medium particle diameter of the water-absorbent resin particles 10a is 250 to 600 μm, the water-absorbent resin particles 10a contain small-diameter particles having a particle diameter of 180 μm or less, and a falloff rate of a mixture of the small-diameter particles and the fibrous substance when the mixture is subjected to shaking treatment for 10 minutes is 20% by mass or less.

SUPER ABSORBENT POLYMER AND METHOD FOR PREPARING THE SAME

The present invention relates to a super absorbent polymer and a method for preparing the same. The present invention has features that it is possible to prepare a super absorbent resin that can have an improved centrifuge retention capacity (CRC) and a high absorbency under load (AUL) by controlling the shape and size of the chopper die holes during coarse pulverization of a hydrous gel phase polymer. 1. A super absorbent polymer comprising a crosslinked polymer , the crosslinked polymer being obtained by surface-crosslinking a base polymer prepared by polymerizing a water-soluble ethylene-based unsaturated monomer including an acidic group in which at least a part of the acidic group is neutralized , wherein the super absorbent polymer hasa centrifuge retention capacity (CRC) of more than 20 g/g,an absorbency under 0.9 psi load (AUL) of more than 18 g/g, and {'br': None, 'ARUL=0.3AUL(5 min)/0.3AUL(60 min)\u2003\u2003[Equation 1]'}, 'ARUL shown in the following Equation 1 of 60% to 85%in Equation 1, {'br': None, 'i': Wb', 'Wa, '0.3AUL(g/g)=[(g)−(g)]/weight(g) of the absorbent polymer\u2003\u2003[Equation 2]'}, '0.3AUL (5 min) and 0.3AUL (60 min) are the values of absorbency under load (AUL) at 5 minutes and 60 minutes shown in the following Equation 2, respectively,'}in Equation 2,Wa(g) is the sum of the weight of the absorbent polymer and the weight of the device capable of providing a load for the absorbent polymer, andWb(g) is the sum of the weight of the absorbent polymer in which moisture is absorbed after supplying water for the absorbent polymer under a load (0.3 psi) for 5 minutes or 60 minutes, and the weight of the device capable of providing a load for the absorbent polymer.2. The super absorbent polymer according to wherein {'br': None, 'sub': '1', 'sup': '1', 'R-COOM\u2003\u2003[Chemical Formula 1]'}, 'the water-soluble ethylene-based unsaturated monomer is a compound represented by the following Chemical Formula 1in Chemical Formula 1,{'sub': 1', '1', ...

VINYLIDENE FLUORIDE POLYMER DISPERSION

The present invention pertains to an aqueous dispersion of a vinylidene fluoride polymer having a high molecular weight and possessing a substantially linear structure, leading to reduced amount of gels/insoluble fractions, to a method for its preparation and to its use for the manufacture of electrochemical cell components, such as electrodes and/or composite separators or for the manufacture of membranes. 117-. (canceled)18. An aqueous dispersion [dispersion (D)] comprising particles of a vinylidene fluoride (VDF) polymer [polymer (A)] comprising recurring units derived from vinylidene fluoride (VDF) monomer , said polymer (A) comprising:(i) more than 85.0% moles of recurring units derived from VDF, with respect to the total number of recurring units of polymer (A);(ii) iodine-containing chain ends in an amount of 0.1 to 5.0 mmol/kg; and{'sub': 'w', '(iii) a weight averaged molecular weight (M) of at least 500 KDalton, when measured by GPC, using N,N-dimethylacetamide (DMA) as solvent, against monodisperse polystyrene standards;'}{'sup': '−1', 'sub': 'w', 'claim-text': {'br': None, 'sub': w', 'w, '0.025×M(KDalton)+13≤MV (KPoise)≤0.050×M(KDalton)+10.'}, 'wherein the relation between melt viscosity (MV) in KPoise determined at a shear rate of 100 sec, and at a temperature of 230° C., according to ASTM D3835, and M, expressed in KDalton, satisfies the following inequality21. The dispersion (D) of claim 18 , wherein polymer (A) comprises at least 0.1 moles of recurring units derived from said hydrophilic (meth)acrylic monomer (MA) and/or polymer (A) comprises at most 7.5% moles of recurring units derived from said hydrophilic (meth)acrylic monomer (MA).22. A method of making a dispersion (D) according to claim 18 , said method comprising emulsion polymerization of VDF in an aqueous medium in the presence of an inorganic initiator and an iodine-containing chain transfer agent claim 18 , wherein the molar ratio between the said iodine-containing chain transfer agent and ...

Dispersion, Ink Composition For Ink Jet Recording, And Dispersing Resin

A dispersion contains water, a color material, and a dispersing resin that disperses the color material, the dispersing resin having a structural unit A containing a hydrophobic monomer, a structural unit B containing a hydrophilic acrylic acid monomer, and a structural unit C containing a sulfonic acid group-containing acrylamide monomer, where the dispersing resin has a weight average molecular weight of from 5000 to 100000 and a content of the structural unit A is 60 mol % or more with respect to a total amount of the dispersing resin. 1. A dispersion comprising:water;a color material; and a structural unit A containing a hydrophobic monomer;', 'a structural unit B containing a hydrophilic acrylic acid monomer; and', 'a structural unit C containing a sulfonic acid group-containing acrylamide monomer, wherein, 'a dispersing resin that disperses the color material, the dispersing resin having'}the dispersing resin has a weight average molecular weight of from 5000 to 100000 anda content of the structural unit A is 60 mol % or more with respect to a total amount of the dispersing resin.2. The dispersion according to claim 1 , whereinthe dispersing resin has a weight average molecular weight of from 7000 to 60000.3. The dispersion according to claim 1 , whereinthe hydrophobic monomer includes an aromatic group-containing vinyl monomer and a hydrocarbon group-containing acrylic acid ester monomer.4. The dispersion according to claim 1 , whereinthe hydrophilic acrylic acid ester monomer includes a (meth)acrylic acid and a polyalkylene glycol group-containing acrylic acid ester monomer.5. The dispersion according to claim 1 , whereinthe acrylamide monomer includes 2-acrylamido-2-methylpropanesulfonic acid.6. The dispersion according to claim 1 , whereinthe content of the structural unit A is from 61 to 70 mol % with respect to the total amount of the dispersing resin.7. The dispersion according to claim 1 , whereina content of the structural unit B is from 7 to 16 mol % ...

SUPER ABSORBENT POLYMER AND METHOD FOR PRODUCING SAME

The present invention relates to an olefin polymer and a method for producing the same. The super absorbent polymer can exhibit excellent absorbent properties even in a swollen state and thus exhibit excellent anti-rewetting effects. Accordingly, when the super absorbent polymer is used, it is possible to provide a sanitary material such as a diaper or a sanitary napkin which can give a smooth touch feeling even after the body fluid is discharged. 2. The super absorbent polymer of claim 1 , wherein it has a centrifuge retention capacity for a physiological saline solution of 30 to 40 g/g.3. The super absorbent polymer of claim 1 , wherein it has an absorbency under load under 0.9 psi for a physiological saline solution of 19 to 25 g/g.4. The super absorbent polymer of claim 1 , wherein it has a free swell gel bed permeability for a physiological saline solution of about 50 darcy to about 100 darcy.7. The method for producing a super absorbent polymer of claim 6 , wherein the epoxy-based surface crosslinking agent include at least one polyglycidyl ether selected from the group consisting of ethylene glycol diglycidyl ether claim 6 , propylene glycol diglycidyl ether claim 6 , butanediol diglycidyl ether claim 6 , hexanediol diglycidyl ether claim 6 , diethylene glycol diglycidyl ether claim 6 , triethylene glycol diglycidyl ether claim 6 , polyethylene glycol diglycidyl ether claim 6 , dipropylene glycol diglycidyl ether claim 6 , tripropylene glycol diglycidyl ether claim 6 , polypropylene glycol diglycidyl ether claim 6 , and glycerol triglycidyl ether.8. The method for producing a super absorbent polymer of claim 6 , wherein claim 6 , in the step of forming the surface crosslinked layer claim 6 , the surface of the base polymer powder is subjected to a first surface crosslinking at a temperature of 120 to 160° C. for 5 to 40 minutes using an epoxy-based surface crosslinking agent.9. The method for producing a super absorbent polymer of claim 6 , wherein the non- ...

Poly(Acrylic Acid) From Bio-Based Acrylic Acid And Its Derivatives

Bio-based glacial acrylic acid, produced from hydroxypropionic acid, hydroxypropionic acid derivatives, or mixtures thereof and having impurities of hydroxypropionic acid, hydroxypropionic acid derivatives, or mixtures thereof, is polymerized to poly(acrylic acid) or superabsorbent polymer using the same processes as petroleum-derived glacial acrylic acid.

CATIONIC POLYMERS FOR USE AS ANION EXCHANGE POLYELECTROLYTES

Described herein are cationic polymers having a plurality of quaternary amino groups, methods of making such polymers, and uses of such polymers as ion exchange membranes in electrochemical devices. 2. The method of claim 1 , wherein the precursor copolymer is a copolymer of ethylene and (meth)acrylic acid.3. The method of claim 1 , wherein the amine compound that is reacted with the first precursor polymer has at least two amino groups and at least one of these amino groups is a primary or secondary amino group.7. The method of claim 1 , wherein the amine compound is imidazoline claim 1 , piperazine claim 1 , morpholine claim 1 , 2 claim 1 ,6-dimethylmorpholine claim 1 , 2-azatricyclo[3.3.1.1]decane claim 1 , and 2 claim 1 ,6-diazatricyclo[3.3.1.1]decane.16. A membrane comprising the cationic polymer of claim 10 , wherein the membrane optionally further comprises a reinforcement material.17. The membrane of claim 14 , wherein the membrane has a positive charge density equal to 1 to 5 milliequivalent per gram of membrane.18. An electrochemical device comprising:an anode;a cathode;{'claim-ref': {'@idref': 'CLM-00016', 'claim 16'}, 'and a membrane positioned between the anode and cathode, wherein the membrane is according to .'} This application claims the benefit of U.S. Provisional Patent Application No. 62/641,709, filed Mar. 12, 2018, the disclosure of which is incorporated by reference herein in its entirety.This invention was made with Government support under Contract No. DE-AR0000776 awarded by DOE. The Government has certain rights in this invention.Polymeric ion exchange membranes for electrochemical devices are disclosed.The successful commercialization of base-stable anion exchange membranes has yet to be realized due to the difficulty in obtaining a polyelectrolyte capable of withstanding highly basic media (pH greater than 14) for extended periods of time without degradation and having sufficiently low membrane ionic resistance to allow for high ...

(METH)ACRYLIC ACID COPOLYMER-CONTAINING COMPOSITION AND METHOD FOR PRODUCING (METH)ACRYLIC ACID COPOLYMER

The present invention provides a (meth)acrylic acid copolymer-containing composition which can sufficiently exhibit both stability at low temperatures and a calcium phosphate scale inhibition ability. The present invention relates to a (meth)acrylic acid copolymer-containing composition containing a (meth)acrylic acid copolymer including: a structural unit (a) derived from at least one selected from the group consisting of (meth)acrylic acid and salts thereof; and a structural unit (b) derived from a sulfonic acid monomer (B), the copolymer containing the structural unit (b) in a proportion of 5 to 90 mol % based on 100 mol % of all structural units, and having a weight average molecular weight of 4,500 to 18,000, the composition containing a sulfur-containing inorganic component not incorporated into the copolymer at a concentration of 6,000 ppm or lower in terms of sulfur atoms. 1. A (meth)acrylic acid copolymer-containing composition comprising a (meth)acrylic acid copolymer including:a structural unit (a) derived from at least one selected from the group consisting of (meth)acrylic acid and salts thereof; anda structural unit (b) derived from a sulfonic acid monomer (B),the copolymer containing the structural unit (b) in a proportion of 5 to 90 mol % based on 100 mol % of all structural units, and having a weight average molecular weight of 4,500 to 18,000,the composition containing a sulfur-containing inorganic component not incorporated into the copolymer at a concentration of 6,000 ppm or lower in terms of sulfur atoms.2. The (meth)acrylic acid copolymer-containing composition according to claim 1 ,wherein the copolymer contains the structural unit (b) in a proportion of 10 to 90 mol % based on 100 mol % of all structural units.3. The (meth)acrylic acid copolymer-containing composition according to claim 1 ,wherein the copolymer has a weight average molecular weight of 4,500 to 17,000.5. The (meth)acrylic acid copolymer-containing composition according to ...

ADHESIVE SHEET AND METHOD OF APPLYING ADHESIVE SHEET TO ROUGH SURFACE

An adhesive sheet of an embodiment of the present disclosure is an adhesive sheet including: a rigid resin film having a thickness of 80 micrometers to 500 micrometers, and a first pressure sensitive adhesive layer being disposed on or above a surface of the rigid resin film, wherein the first pressure sensitive adhesive layer includes elastic resin microspheres having a volume average particle diameter of 110 micrometers or greater and a tacky binder, and the first pressure sensitive adhesive layer has an uneven surface due to the presence of the microspheres. 1. An adhesive sheet comprising:a rigid resin film having a thickness of 80 micrometers to 500 micrometers, anda first pressure sensitive adhesive layer being disposed on or above a surface of the rigid resin film, whereinthe first pressure sensitive adhesive layer comprises elastic resin microspheres having a volume average particle diameter of 110 micrometers or greater and a tacky binder, andthe first pressure sensitive adhesive layer has an uneven surface due to the presence of the microspheres.2. The adhesive sheet according to claim 1 , comprising:a transparent resin film having a graphic image printed on a surface of the transparent resin film.3. The adhesive sheet according to claim 1 , wherein the microspheres are tacky.4. The adhesive sheet according to claim 1 , wherein the microspheres have a compressive elastic modulus at 20° C. of 1 kPa to 100 kPa.5. The adhesive sheet according to claim 1 , wherein the rigid resin film has a yield modulus of 10 MPa to 300 MPa.6. The adhesive sheet according to claim 1 , wherein a product of the yield modulus and the thickness of the rigid resin film is 0.9×10N/m to 5×10N/m.7. The adhesive sheet according to claim 1 , wherein the rigid resin film has a tensile strength at 2% strain of 40 N/25 mm or greater.8. The adhesive sheet according to claim 1 , wherein the rigid resin film is a polyester film.9. The adhesive sheet according to claim 1 , wherein the ...

POLYMER AS THICKENER AND SUSPENDING AGENT

The present invention relates to a polymer obtained by radical polymerization of a mixture of monomers comprising: at least one anionic monomer (a) having a polymerizable vinyl function; at least one non-ionic hydrophobic monomer (b) having a polymerizable vinyl function; and one or more crosslinking monomer(s) (c) including at least one compound of formula (I) in which R is a hydrogen atom or a methyl group, n is zero or an integer from 1 to 30, and Ris a linear or branched C-Calkylene group. The present invention also relates to a process for the preparation thereof by radical polymerization, to an aqueous composition comprising same, to the use thereof as a thickener and suspending agent and also to the use of a monomer of formula (I) for synthesizing a polymer. 2. The polymer according to claim 1 , wherein:R is a hydrogen atom or a methyl group;{'sub': 1', '2', '2, 'Ris a —(CH)— group; and'}n is equal to 1.3. The polymer according to claim 1 , wherein:R is a hydrogen atom; andn is equal to 0.4. The polymer according to claim 1 , wherein the mixture of monomers further comprises:{'sub': '10', '(d) at least one monomer (d) having a polymerizable vinyl group and an at least Chydrophobic hydrocarbon chain, the monomer (d) being distinct from the monomer (b).'}5. The polymer according to claim 1 , wherein the mixture of monomers further comprises:(e) at least one additional monomer (e) that is optionally nonionic, the additional monomer (e) being distinct from the monomer (b).6. The polymer according to claim 1 , wherein the at least one anionic monomer (a) is selected from the group consisting of acrylic acid claim 1 , a salt of acrylic acid claim 1 , methacrylic acid claim 1 , a salt of methacrylic acid claim 1 , and mixtures thereof.7. The polymer according to claim 1 , wherein the at least one anionic monomer (a) represents more than 20% by weight claim 1 , based on a total weight of monomers forming the polymer.8. The polymer according to claim 1 , wherein the ...

LATEX COMPOSITION

A latex composition is formed by adding an aqueous solution of an aluminum compound to a latex of a carboxyl group-containing synthetic polyisoprene and/or a carboxyl group-containing styrene-isoprene-styrene block copolymer. In the latex composition, the aqueous solution of an aluminum compound preferably has a pH of 5 to 13. In the latex composition, the aqueous solution of an aluminum compound is preferably an aqueous solution of a metal salt of aluminate. 1. A latex composition formed by adding an aqueous solution of an aluminum compound to a latex of a carboxyl group-containing synthetic polyisoprene and/or a carboxyl group-containing styrene-isoprene-styrene block copolymer.2. The latex composition according to claim 1 , wherein the aqueous solution of an aluminum compound has a pH of 5 to 13.3. The latex composition according to claim 1 , wherein the aqueous solution of an aluminum compound is an aqueous solution of a metal salt of aluminate.4. The latex composition according to claim 1 , wherein the carboxyl group-containing synthetic polyisoprene is obtained by graft polymerization of a monomer having a carboxyl group onto a synthetic polyisoprene.5. The latex composition according to claim 1 , wherein the carboxyl group-containing styrene-isoprene-styrene block copolymer is obtained by graft polymerization of a monomer having a carboxyl group onto a styrene-isoprene-styrene block copolymer.6. The latex composition according to claim 1 , further comprising 0.05 to 1.0 part by weight of a sulfur vulcanizing agent with respect to 100 parts by weight of the total of the carboxyl group-containing synthetic polyisoprene and the carboxyl group-containing styrene-isoprene-styrene block copolymer.7. The latex composition according to claim 1 , further comprising 0.05 to 1.0 part by weight of a sulfur vulcanization accelerator with respect to 100 parts by weight of the total of the carboxyl group-containing synthetic polyisoprene and the carboxyl group-containing ...

Lubricant Composition and Method of Preparing Copolymer Using the Same

A lubricant composition includes a base oil, a phenothiazine-based polymerization inhibitor, and a polymerization inhibitory accelerator including a hindered phenol-based compound and a hydroquinone-based compound. A self-polymerization in a polymerizing process is suppressed by an interaction between the polymerization inhibitor and the polymerization inhibitory accelerator. A method of preparing a copolymer using the lubricant composition is also provided. 1. A lubricant composition , comprising:a base oil;a phenothiazine-based polymerization inhibitor; anda polymerization inhibitory accelerator including a hindered phenol-based compound and a hydroquinone-based compound.3. The lubricant composition according to claim 1 , wherein an amount of the polymerization inhibitor is from 1 ppm to 2 claim 1 ,000 ppm relative to a weight of the base oil.4. The lubricant composition according to claim 3 , wherein the amount of the polymerization inhibitor is from 1 ppm to 10 ppm relative to the weight of the base oil.6. The lubricant composition according to claim 5 , wherein the hindered phenol-based compound is butylated hydroxytoluene (BHT).8. The lubricant composition according to claim 7 , wherein the hydroquinone-based compound is hydroquinone monomethyl ether (MeHQ)9. The lubricant composition according to claim 1 , wherein an amount of the polymerization inhibitory accelerator is from 1 wt % to 10 wt % based on a weight of the base oil.10. The lubricant composition according to claim 1 , further comprising a polar non-aromatic compound.11. The lubricant composition according to claim 10 , wherein the polar non-aromatic compound includes a fatty acid-based compound.12. The lubricant composition according to claim 10 , wherein an amount of the polar non-aromatic compound exceeds 1 wt % and is less than or equal to 10 wt %.13. A method of preparing a copolymer claim 10 , comprising:injecting the lubricant composition into a discharge unit;discharging a first monomer that ...

Super Absorbent Polymer And Method For Producing Same

A super absorbent polymer according to the present invention has excellent dryness while maintaining excellent absorption performance, and thus is preferably used for hygienic materials such as diapers, and can exhibit excellent performance.

OIL-REPELLENT COMPOSITION

An oil-repellent composition is provided containing an aqueous emulsion in which a copolymer (A) containing a constituent unit based on an ethylenically unsaturated carboxylic acid ester monomer (A1) and a constituent unit based on an ethylenically unsaturated carboxylic acid monomer (A2) is dispersed in an aqueous medium (B), and polyether-modified polydimethyl siloxane (C). 1. An oil-repellent composition , comprising:an aqueous emulsion in which a copolymer (A) containing, as an essential component, a constituent unit based on an ethylenically unsaturated carboxylic acid ester monomer A1) and a constituent unit based on an ethylenically unsaturated carboxylic acid monomer (A2) is dispersed in an aqueous medium (B); andpolyether-modified polydimethyl siloxane (C).2. The oil-repellent composition according to claim 1 ,wherein polyether described in the polyether-modified polydimethyl siloxane (C) is hydroxyl group-containing polyether-modified polydimethyl siloxane.3. The oil-repellent composition according to claim 1 ,wherein a content of the polyether-modified polydimethyl siloxane (C) is 0.1 to 20 parts by mass with respect to 100 parts by mass of the copolymer (A).4. The oil-repellent composition according to claim 1 ,wherein the constituent unit based on the ethylenically unsaturated carboxylic acid ester monomer A1) is contained at 80% to 99% by mass with respect to the entire constituent units of the copolymer (A).5. The oil-repellent composition according to claim 1 ,wherein the constituent unit based on the ethylenically unsaturated carboxylic acid monomer (A2) is contained at 0.1% to 20% by mass with respect to the entire constituent units of the copolymer (A).6. The oil-repellent composition according to claim 1 ,wherein the ethylenically unsaturated carboxylic acid ester monomer A1) is ester of alcohol having 1 to 8 carbon atoms and (meth)acrylic acid.7. The oil-repellent composition according to claim 1 ,wherein the ethylenically unsaturated carboxylic ...

MIXING SYSTEM FOR PRODUCING AQUEOUS REPAIR COATING PRODUCTS, METHOD FOR THE PRODUCTION THEREOF, AND AQUEOUS REPAIR COATING PRODUCTS PRODUCED FROM THE MIXING SYSTEM

Provided herein is a mixer system for producing refinish compositions, more particularly for the sector of automotive finishing, including at least mutually different components (1), (2), and (3), namely component (1) as base varnish, component (2) as tinting base, and component (3) as rheology module, with at least one of components (1) to (3) including at least one aqueous dispersion including at least one polymer prepared by multistage emulsion polymerization, and at least one of components (1) to (3) including at least one aliphatic monoalcohol having 5 carbon atoms and/or at least one aliphatic monoalcohol having 6 carbon atoms. Further provided herein is an aqueous refinish composition that is produced by the mixing of components (1) to (3), and a method for producing aqueous refinish compositions. Further provided herein is a use of the mixer system for producing aqueous refinish compositions for automotive refinishing. 1. A mixer system for producing aqueous refinish compositions , the mixer system comprising:at least one component (1) as pigment-free base varnish, comprising at least one physically curing polyurethane or a self-crosslinking polyurethane or an externally crosslinking polyurethane;at least one component (2) as tinting base, comprising at least one physically drying polyurethane or a self-crosslinking polyurethane or an externally crosslinking polyurethane and at least one color-imparting and/or optical-effect-imparting pigment; andat least one component (3) as rheology module, comprising at least one inorganic and/or organic thickener,wherein at least one of the components, (1), (2), or (3), comprises an aqueous dispersion comprising at least one polymer SCS, and wherein at least one of the components, (1), (2), or (3), comprises at least one aliphatic monoalcohol having 5 carbon atoms and/or at least one aliphatic monoalcohol having 6 carbon atoms,the aqueous dispersion being prepared by the successive radical emulsion polymerization of ...

BINDER COMPOSITION FOR NON-AQUEOUS SECONDARY BATTERY ELECTRODE, SLURRY COMPOSITION FOR NON-AQUEOUS SECONDARY BATTERY ELECTRODE, ELECTRODE FOR NON-AQUEOUS SECONDARY BATTERY, AND NON-AQUEOUS SECONDARY BATTERY

A binder composition for a non-aqueous secondary battery electrode contains a water-soluble polymer including a (meth)acrylamide monomer unit and an amine compound. Percentage content M0 of the (meth)acrylamide monomer unit is at least 40 mass % and not more than 100 mass % relative to 100 mass % of all monomer units of the water-soluble polymer. Content M1 of the amine compound is at least 0.01 parts by mass and not more than 0.5 parts by mass per 100 parts by mass of solid content of the water-soluble polymer. 1. A binder composition for a non-aqueous secondary battery electrode comprising:a water-soluble polymer including a (meth)acrylamide monomer unit; andan amine compound, whereinpercentage content M0 of the (meth)acrylamide monomer unit is at least 40 mass % and not more than 100 mass % relative to 100 mass % of all monomer units of the water-soluble polymer, andcontent M1 of the amine compound is at least 0.01 parts by mass and not more than 0.5 parts by mass per 100 parts by mass of solid content of the water-soluble polymer.2. The binder composition for a non-aqueous secondary battery electrode according to claim 1 , wherein{'sup': −3', '−3, 'a mass ratio M=M1/M0 calculated from the content M1 of the amine compound and the percentage content M0 of the (meth)acrylamide monomer unit is at least 0.10×10and not more than 12.5×10.'}3. The binder composition for a non-aqueous secondary battery electrode according to claim 1 , wherein the amine compound has a nitric oxide radical generating structure.4. The binder composition for a non-aqueous secondary battery electrode according to claim 1 , whereinthe amine compound is hydroxylamine sulfate or diethylhydroxylamine.5. The binder composition for a non-aqueous secondary battery electrode according to claim 1 , wherein{'sup': 6', '6, 'the water-soluble polymer has a weight average molecular weight of at least 0.01×10and not more than 20.0×10.'}6. A slurry composition for a non-aqueous secondary battery electrode ...

METHOD FOR PREPARING AN AQUEOUS POLYMER DISPERSION FROM A VINYL AROMATIC COMPOUND AND A CONJUGATED ALIPHATIC DIENE

The present invention relates to a process for producing an aqueous polymer dispersion by free-radically initiated aqueous emulsion polymerization, by polymerizing, in an aqueous medium, 1. A process for producing an aqueous polymer dispersion by free-radically initiated aqueous emulsion polymerization , which comprises polymerizing , in an aqueous medium ,(a) 40 to 75 parts by weight of at least one vinylaromatic compound and(b) 24.9 to 59.9 parts by weight of at least one conjugated aliphatic diene(c) 0.1 to 10 parts by weight of at least one monomer comprising acid groups and(d) 0 to 20 parts by weight of at least one other monoethylenically unsaturated monomer, the amounts of the monomers (a) to (d) adding up to 100 parts by weight, the continuous metering of the inorganic peroxide starts at the same time as the continuous metering of the vinylaromatic compound,', 'the metering of the organic peroxide is started at a time at which at least 5% and not more than 20% of the vinylaromatic compound has already been metered in in a continuous mass flow under polymerization conditions and', 'optionally a portion of inorganic peroxide is initially charged., 'in a monomer feed process in the presence of at least one inorganic peroxide and at least one organic peroxide, with the proviso that'}2. The process according to claim 1 , wherein the vinylaromatic compound is styrene and/or methylstyrene and the conjugated aliphatic diene is 1 claim 1 ,3-butadiene and/or isoprene.3. The process according to claim 1 , wherein during the monomer feed no reducing agent capable of forming a redox initiator system with the organic or inorganic peroxides is present.4. The process according to claim 1 , wherein the inorganic peroxide is selected from hydrogen peroxide and ammonium or alkali metal salts of peroxodisulfates and the organic peroxide is selected from alkyl hydroperoxides and aryl hydroperoxides.5. The process according to claim 1 , wherein the polymerization is initiated in ...

METHOD FOR THE HYDROLYSIS OF A POLYMER

Methods for producing final polymer A are provided that comprise the following steps: 2. The method according to claim 1 , wherein in step (B) claim 1 , the ester groups of the monomers (ii) polymerized into the starting polymer V at least partially react and at least part of the reaction is the formation of five-membered lactam structural units with the obtained primary amino groups or the formation of carboxylic acid groups or salt forms thereof.3. The method according to claim 1 , wherein for the radical polymerization(i) 30 to 89 mol % of a monomer of the formula I,{'sub': 1', '4', '1', '4, '(ii) 5 to 60 mol % of a C-Calkyl ester of acrylic acid or of a C-Calkyl ester of methacrylic acid,'}(iii) 1 to 30 mol % of a monoethylenically unsaturated carboxylic acid, a monoethylenically unsaturated sulfonic acid or a monoethylenically unsaturated phosphonic acid, or salt forms thereof, 'are used.', '(iv) 0 to 25 mol % of one or more ethylenically unsaturated monomers which are different from a monomer (i), (ii) and (iii),'}4. The method according to claim 1 , wherein for the radical polymerizing(i) 50 to 89 mol % of a monomer of the formula I,{'sub': 1', '4', '1', '4, '(ii) 5 to 45 mol % of a C-Calkyl ester of acrylic acid or of a C-Calkyl ester of methacrylic acid,'}(iii) 1 to 30 mol % of a monoethylenically unsaturated carboxylic acid, a monoethylenically unsaturated sulfonic acid or a monoethylenically unsaturated phosphonic acid, or salt forms thereof,(iv) 0 to 25 mol % of one or more ethylenically unsaturated monomers which are different from a monomer (i), (ii) and (iii),are used.5. The method according to claim 1 , wherein for the radical polymerizing(i) 58 to 83 mol % of a monomer of the formula I,{'sub': 1', '4', '1', '4, '(ii) 8 to 39 mol % of a C-Calkyl ester of acrylic acid or of a C-Calkyl ester of methacrylic acid,'}(iii) 2 to 25 mol % of a monoethylenically unsaturated carboxylic acid, a monoethylenically unsaturated sulfonic acid or a monoethylenically ...

Acrylic composition having an increased resistance to alcohols, oils and fats

A transparent acrylic-based polymer composition has an increased resistance to alcohols, oils and fats. The polymer composition contains: (A) a copolymer of alkyl(meth)acrylates, aromatic vinyl monomer and unsaturated carboxylic acid anhydride; (B) a copolymer containing aromatic vinyl monomer and a vinyl cyanide monomer; and (C) a particulate core-shell type graft copolymer containing a butadiene-based core as a rubbery phase and a copolymer containing alkyl(meth)acrylates and, optionally, aromatic vinyl monomer as a hard phase. The components A and B form a polymer matrix and the particulate core-shell type graft copolymer C is dispersed in said polymer matrix. 1: A polymer composition comprising , based on the weight of the polymer composition , the following components A , B and C:A. 40.0 to 84.0 wt.-% of a copolymer comprising alkyl(meth)acrylates, aromatic vinyl monomer and unsaturated carboxylic acid anhydride;B. 4.0 to 20.0 wt.-% of a copolymer comprising aromatic vinyl monomer and a vinyl cyanide monomer; andC. 12.0 to 40.0 wt.-% of a particulate core-shell type graft copolymer comprising a butadiene-based core as a rubbery phase and a copolymer comprising alkyl(meth)acrylates and, optionally, aromatic vinyl monomer as a hard phase;wherein the components A and B form a polymer matrix and the particulate core-shell type graft copolymer C is dispersed in said polymer matrix; andwherein a content of vinyl cyanide monomer in the particulate core-shell type graft copolymer C is from 0 to 5.0 wt.-%, based on the weight of the particulate core-shell type graft copolymer C.2: The polymer composition according to claim 1 , wherein the copolymer A is a copolymer of48.0 to 90.0 wt.-% of alkyl(meth)acrylates;8.0 to 35.0 wt.-% of aromatic vinyl monomer; and2.0 to 17.0 wt.-% of unsaturated carboxylic acid anhydride, based on the weight of the copolymer A.3: The polymer composition according to claim 1 , wherein a weight average molecular weight Mw of the copolymer A is ...

PHOTOCURABLE RESIN COMPOSITION AND A METHOD FOR PRODUCING AN ARTICLE

A curable resin composition which provides a cured product excellent in impact resistance and flexural modulus and has a low viscosity comprising a component (A), a component (B) and a component (C). The component (A) is a compound represented by formula (1), 2. The photocurable resin composition according to claim 1 , wherein the content of the component (A) is 50 mass % or more and less than 90 mass %.3. The photocurable resin composition according to claim 1 , wherein the content of the component (A) is 60 mass % or more and 85 mass % or less.4. The photocurable resin composition according to claim 1 , wherein said X is in a range of 9 to 16 inclusive claim 1 , and said Y is in a range of 7 to 16 inclusive.5. The photocurable resin composition according to claim 1 , wherein a viscosity of the photocurable resin composition is 100 cps or less.6. The photocurable resin composition according to claim 1 , wherein the component (B) comprises a group having a carbon-carbon double bond as the radical polymerizable group.7. The photocurable resin composition according to claim 6 , wherein the group having the carbon-carbon double bond is an acryloyl group or a methacryloyl group.8. A cured product obtained by curing the photocurable resin composition according to .10. The photocurable resin composition according to claim 9 , wherein the content of the component (A) is 50 mass % or more and less than 90 mass %.11. The photocurable resin composition according to claim 9 , wherein the content of the component (A) is 60 mass % or more and 85 mass % or less.12. The photocurable resin composition according to claim 9 , wherein X is in a range of 9 to 16 inclusive claim 9 , and Y is in a range of 7 to 16 inclusive.13. The photocurable resin composition according to of which viscosity is 100 cps or less.14. The photocurable resin composition according to claim 9 , wherein the component (B) comprises a group having a carbon-carbon double bond as the radical polymerizable group.15 ...

Method for Improving Overflow Clarity in Production of Coal

A transitional treatment composition and methods of treating coal refuse are provided. The transitional treatment composition comprises an anionic acrylate-acrylamide copolymer having from about 30 mole percent to about 50 mole percent (meth)acrylate, from about 50 mole percent to about 70 mole percent (meth)acrylamide, and a reduced specific viscosity of from about 18 dL/g to about 30 dL/g. The transitional treatment composition can be made down in an aqueous liquid. 1. A transitional treatment composition comprising an anionic acrylate-acrylamide copolymer having from about 30 mole percent to about 50 mole percent (meth)acrylate , from about 50 mole percent to about 70 mole percent (meth)acrylamide , and a reduced specific viscosity of from about 18 dL/g to about 30 dL/g.2. The transitional treatment composition of claim 1 , made down in an aqueous liquid.3. The transitional treatment composition of claim 1 , wherein the (meth)acrylate is acrylate.4. The transitional treatment composition of claim 1 , wherein the (meth)acrylamide is acrylamide.5. The transitional treatment composition of claim 1 , wherein the anionic acrylate-acrylamide copolymer has been formed via free radical polymerization.6. The transitional treatment composition of claim 1 , wherein the anionic acrylate-acrylamide copolymer has a reduced specific viscosity of from about 22 dL/g to about 28 dL/g.7. The transitional treatment composition of claim 1 , wherein the anionic acrylate-acrylamide copolymer has a weight average molecular weight of from about 4 million to about 7 million Daltons.8. A method of treating coal refuse comprising: combining the transitional treatment composition of and coal refuse.9. A method of separating water from coal refuse comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'combining the transitional treatment composition of and coal refuse downstream of a coal flotation operation to form treated coal refuse; and'}allowing the treated coal refuse to stand in ...

Temperature-responsive polymer particles in protein separation applications

The present invention relates to a method for isolating proteins from a solution containing the proteins. The invention also relates to a method for the chromatographic separation of proteins. The present invention also relates to crosslinked hydroxylic polymer particles functionalized with temperature-responsive copolymer, and to methods of preparing such particles.

SURFACE-TREATED CARBON NANOTUBE AND RESIN COMPOSITION

Provided is a surface-treated carbon nanotube having few surface fractures, not reducing the molecular weight of the resin to be mixed and having excellent extrudability. In the surface-treated carbon nanotube, the thermal reduction amount at 600° C. in a nitrogen atmosphere is 0.2 to 40%, the surface oxygen concentration measured by X-ray photoelectron spectroscopy (XPS) is 1.5 to 40 atm % and the surface sulfur concentration is less than 0.1 atm %. 1. A surface-treated carbon nanotube whereina thermal reduction amount at 600° C. in a nitrogen atmosphere is 0.2 to 40%;a surface oxygen concentration measured by X-ray photoelectron spectroscopy (XPS) is 1.5 to 40 atm %; anda surface sulfur concentration is less than 0.1 atm %.2. The surface-treated carbon nanotube according to claim 1 , wherein the thermal reduction amount at 600° C. in a nitrogen atmosphere is 0.5 to 40%.3. The surface-treated carbon nanotube according to claim 1 , wherein a surface treatment with at least one selected from the group consisting of an inorganic acid claim 1 , an organic acid and a polymer having an organic acid as a polymerization unit is applied.4. The surface-treated carbon nanotube according to claim 3 , wherein the inorganic acid is hydrogen peroxide.5. The surface-treated carbon nanotube according to claim 4 , wherein a ratio (Id/Ig) of a peak area (Id) of a band having a range of 1335 to 1365 cmto a peak area (Ig) of a band having a range of 1565 to 1600 cmin a Raman scattering spectrum is 1.0 to 2.0.6. The surface-treated carbon nanotube according to claim 3 , wherein the organic acid is at least one selected from the group consisting of citric acid claim 3 , oxalic acid claim 3 , acrylic acid claim 3 , diacrylic acid claim 3 , methacrylic acid claim 3 , maleic acid claim 3 , fumaric acid claim 3 , dimethylfumaric acid claim 3 , itaconic acid claim 3 , citraconic acid claim 3 , fumaric anhydride claim 3 , maleic anhydride claim 3 , benzoic anhydride and acetic anhydride.7. The ...

Permeable Superabsorbent and Process for Production Thereof

A highly permeable superabsorbent is prepared by a process comprising 1. A process for producing a superabsorbent , comprisingpolymerizing an aqueous monomer solution comprisinga) at least one ethylenically unsaturated monomer which bears an acid group and optionally is at least partly in salt form,b) at least one crosslinker,c) at least one initiator,d) optionally one or more ethylenically unsaturated monomer copolymerizable with the monomer mentioned under a), ande) optionally one or more water-soluble polymer;drying a resulting polymer,optionally grinding the dried polymer and sieving the ground polymer,optionally surface postcrosslinking the dried and optionally ground and sieved polymer,wherein, after drying, grinding, or sieving, and, if surface postcrosslinking is conducted, during or after the surface postcrosslinking, adding an x-ray-amorphous aluminum hydroxide powder.2. The process according to claim 1 , wherein 0.01% to 2% by weight claim 1 , based on the amount of polymer prior to the addition claim 1 , of x-ray-amorphous aluminum hydroxide is added.3. The process according to claim 2 , wherein 0.2% to 1% by weight claim 2 , based on the amount of polymer prior to the addition claim 2 , of x-ray-amorphous aluminum hydroxide is added.4. The process according to any of claim 1 , wherein the dried and optionally ground and sieved polymer is surface postcrosslinked with a postcrosslinker that forms covalent bonds with polar groups at a surface of the superabsorbent particles.5. The process according to any of claim 1 , wherein claim 1 , after the addition of x-ray-amorphous aluminum hydroxide powder claim 1 , 0.1% to 10% by weight claim 1 , based on the amount of polymer prior to the addition of the x-ray-amorphous aluminum hydroxide powder claim 1 , of water is added to the superabsorbent.6. A superabsorbent obtained by the process of any of .7. An article for absorption of fluids claim 6 , comprising the superabsorbent of .8. A process for producing ...

RHEOLOGY-MODIFYING AGENTS FOR SLURRIES

The present disclosure relates to rheology-modifying agents and methods of modifying the rheology of slurries. A rheology-modifying agent may be added to a slurry. The rheology-modifying agent may include a polymer and the polymer may include at least three chemically different monomers. The slurry may include lime and/or magnesium hydroxide. 1. A method of modifying the rheology of a slurry , comprising:adding a rheology-modifying agent to the slurry, the rheology-modifying agent comprising a polymer, wherein the polymer comprises a first monomer, a second monomer, a third monomer, and a fourth monomer, wherein the first, second, third, and fourth monomers are chemically different.2. The method of claim 1 , wherein the slurry comprises magnesium hydroxide or lime.3. The method of claim 1 , wherein the rheology-modifying agent comprises sodium carbonate.4. The method of claim 1 , wherein the rheology-modifying agent excludes phosphorous.5. The method of claim 1 , wherein the first monomer is selected from the group consisting of acrylic acid (“AA”) claim 1 , methacrylic acid (“MAA”) claim 1 , a butenoic acid claim 1 , a pentenoic acid claim 1 , a propenoic acid claim 1 , maleic acid (“MA”) claim 1 , maleic anhydride claim 1 , fumaric acid claim 1 , itaconic acid claim 1 , glutaconic acid claim 1 , muconic acid claim 1 , succinic acid claim 1 , citric acid claim 1 , aconitic acid claim 1 , a salt of any of the foregoing acids claim 1 , and a conjugate base of any of the foregoing acids.6. The method of claim 1 , wherein the polymer comprises about 55 mol % claim 1 , or more claim 1 , of the first monomer.7. The method of claim 1 , wherein the second monomer is selected from the group consisting of a second sulfonated acid claim 1 , a second carboxylic acid claim 1 , 2-acrylamido-2-methylpropane sulfonic acid (“ATBS”) claim 1 , sulfostyrene claim 1 , vinylsulfonic acid claim 1 , methallylsulfonic acid claim 1 , a salt of any of the foregoing acids claim 1 , and a ...

High Temperature Crosslinked Fracturing Fluids

A fracturing fluid including a mixture of an aqueous copolymer composition including a copolymer, the copolymer having 2-acrylamido-2-methylpropanesulfonic acid, acrylamide, and acrylic acid monomer units, or a salt thereof, and a crosslinker. The crosslinker includes a metal, and the weight ratio of the metal to the copolymer is in a range of 0.01 to 0.08. Treating a subterranean formation includes introducing the fracturing fluid into a subterranean formation, and crosslinking the fracturing fluid in the subterranean formation to yield a crosslinked fracturing fluid. The crosslinked fracturing fluid has a viscosity of at least 500 cP for at least 80 minutes when the gel is subjected to a shear rate of 40 sat a temperature in a range of 300° F. to 400° F. 1. A fracturing fluid comprising a mixture of:an aqueous copolymer composition comprising a copolymer, the copolymer comprising 2-acrylamido-2-methylpropanesulfonic acid, acrylamide, and acrylic acid monomer units, or a salt thereof, wherein the copolymer comprises 1 mol % to 25 mol % of the 2-acrylamido-2-methylpropanesulfonic acid monomer units; anda crosslinker comprising a metal,wherein a weight ratio of the metal to the copolymer is in a range of 0.01 to 0.08 andwherein the fracturing fluid comprises 20 to 50 pounds of the copolymer per thousand gallons of the fracturing fluid.2. The fracturing fluid of claim 1 , wherein the weight ratio of the metal to the copolymer is in a range of 0.02 to 0.06.36-. (canceled)7. The fracturing fluid of claim 1 , comprising at least one of a gel stabilizer claim 1 , a clay stabilizer claim 1 , a viscosity breaker claim 1 , a proppant claim 1 , and a pH adjusting agent.8. The fracturing fluid of claim 7 , comprising the pH adjusting agent claim 7 , wherein a pH of the fracturing fluid is in a range of 2 to 7 or 3 to 6.5.9. The fracturing fluid of claim 1 , comprising between 50 mg/L and 50 claim 1 ,000 mg/L of total dissolved solids.10. The fracturing fluid of claim 1 , ...

(METH)ACRYLIC COPOLYMER, METHOD FOR PRODUCING SAME, RESIN COMPOSITION AND ANTIFOULING PAINT COMPOSITION

A (meth)acrylic copolymer of the present invention includes at least one constituent unit (A) selected from the group consisting of a constituent unit (A1) having at least one structure (I) represented by Formula (1), Formula (2), or Formula (3), a constituent unit (A2) containing a triorganosilyloxycarbonyl group, and a constituent unit (A3) having at least one structure (III) represented by Formula (4) or Formula (5), a constituent unit (B) derived from a specific polysiloxane block-containing polymerizable monomer (b), and a constituent unit (C) derived from a macromonomer (c). 1. A (meth)acrylic copolymer , comprising:at least one constituent unit (A) selected from the group consisting of a constituent unit (A1) having at least one structure (I) represented by Formula (1), Formula (2), or Formula (3), a constituent unit (A2) containing a triorganosilyloxycarbonyl group, and a constituent unit (A3) having at least one structure (III) represented by Formula (4) or Formula (5),a constituent unit (B) derived from at least one polysiloxane block-containing polymerizable monomer (b) selected from the group consisting of a polymerizable monomer represented by Formula (131), a polymerizable monomer represented by Formula (b2), a polymerizable monomer represented by Formula (b3), and a polymerizable monomer represented by formula (b4), and [{'chemistry': {'@id': 'CHEM-US-00012', '@num': '00012', 'img': {'@id': 'EMI-C00012', '@he': '64.35mm', '@wi': '69.85mm', '@file': 'US20200017617A1-20200116-C00012.TIF', '@alt': 'embedded image', '@img-content': 'chem', '@img-format': 'tif'}}, 'br': None, '—COO-M-OCO—\u2003\u2003(4)'}, {'br': None, 'sup': '22', '—COO-M-R\u2003\u2003(5)'}, {'br': None, 'sub': 2', 'u', '2u', 'v', 'w', '2w', 'x, 'sup': 3a', '3b', '3c', '3d', '3e', '3f, 'CH═CR—CO—O—(CH—O)—CH—(SiRR—O)—SiRRR\u2003\u2003(b1)'}, {'br': None, 'sub': 2', 'u', '2u', 'v', 'w', '2w', '3, 'sup': 4a', '4b', '4c', '4d, 'CH═CR—CO—O—(C′H′—O)′—C′H′—Si(OSiRRR)\u2003\u2003(b2)'}, {'br': ...

ORTHOPEDIC IMPLANTS HAVING GRADIENT POLYMER ALLOYS

Orthopedic implants having a bone interface member and a water swellable IPN or semi-IPN with a stiffness, hydration, and/or compositional gradient from one side to the other and physically attached to the bone interface member. The invention also includes an orthopedic implant system including an implant that may conform to a bone surface and a joint capsule. The invention also includes orthopedic implants with water swellable IPN or semi-IPNs including a hydrophobic thermoset or thermoplastic polymer first network and an ionic polymer second network, joint capsules, labral components, and bone interface members. The invention also includes a method of inserting an orthopedic implant having a metal portion and a flexible polymer portion into a joint, including inserting the implant in a joint in a first shape and changing the implant from a first shape to a second shape to conform to a shape a bone. 117-. (canceled)18. An orthopedic implant comprising: a water swellable IPN or semi-IPN member having a bearing surface and an attachment zone , the water swellable IPN or semi-IPN member comprising a hydrophobic thermoset or thermoplastic polymer first network and an ionic polymer second network configured to exhibit a compositional gradient between the bearing surface and the attachment zone , wherein the attachment zone is configured to attach to bone and comprises the hydrophobic first network and not the ionic polymer second network. This application is a continuation of U.S. patent application Ser. No. 13/347,647, filed Jan. 10, 2012, which is a continuation-in-part of U.S. patent application Ser. No. 13/219,348, filed Aug. 26, 2011, now U.S. Pat. No. 8,883,915, which claims the benefit of U.S. Provisional Patent Application No. 61/377,844, filed Aug. 27, 2010 and of U.S. Provisional Patent Application No. 61/383,705, filed Sep. 16, 2010. U.S. patent application Ser. No. 13/219,348 is a continuation-in-part of U.S. patent application Ser. No. 12/499,041. filed Jul ...

PVC-BASED COMPOSITION

A polyvinyl chloride-based composition including (a) a polyvinyl chloride resin, (b) a flexible acrylic resin; and (c) a plasticizer; an article made from the above composition wherein the article has (i) a cold temperature ductility at a temperature of less than −30° C. after heat aging at a temperature of 120° C. 1. A polyvinyl chloride-based composition comprising(a) a polyvinyl chloride resin;(b) a flexible acrylic resin; and(c) a plasticizer.2. The composition of claim 1 , wherein the concentration of the polyvinyl chloride resin is from 20 weight percent to 80 weight percent; the concentration of the flexible acrylic resin is from 1 weight percent to 60 weight percent; and (c) the concentration of the plasticizer is from 10 weight percent to 60 weight percent.3. The composition of claim 1 , including further one or more heat stabilizers claim 1 , one or more UV stabilizers claim 1 , or one or more antioxidants.4. An article made from the composition of .5. The article of comprising a skin member made from slush molding claim 3 , injection or compression molding claim 3 , extrusion or calendaring.6. The article of claim 3 , wherein the skin member has a cold temperature ductility at a temperature of less than −30° C. after heat aging at a temperature of 120° C.7. The article of claim 5 , including a composite comprising a polyurethane foam backing and the skin member.8. The article of comprising a film or sheet member.9. A method of making a polyvinyl chloride-based composition comprising admixing (a) a polyvinyl chloride resin claim 3 , (b) a flexible acrylic resin; and (c) a plasticizer claim 3 , forming a mixture adapted for manufacturing an article therefrom.10. A method of making an article from a polyvinyl chloride-based composition comprising the steps of:(I) admixing (a) a polyvinyl chloride resin, (b) a flexible acrylic resin; and (c) a plasticizer, forming a mixture adapted for manufacturing an article therefrom; and(II) forming an article from the ...

MULTIPHASIC POLYMER AS A THICKENING AND SUSPENDING AGENT

The invention relates to multiphasic polymers comprising from 45% to 95% by weight of a first polymer P1 and from 5% to 55% by weight of a second polymer P2, said polymers P1 and P2 being of distinct compositions, 1. A multiphasic polymer , comprising from 45% to 95% by weight of a first polymer P1 and from 5% to 55% by weight of a second polymer P2 , said polymers P1 and P2 being of distinct compositions , wherein: at least one anionic monomer (a) having a polymerizable vinyl group,', 'at least one nonionic hydrophobic monomer (b) having a polymerizable vinyl group,', 'at least one cross-linking monomer (c),', 'at least one associative monomer (d) having a polymerizable vinyl group and a hydrophobic hydrocarbon chain, and', 'optionally at least one additional nonionic monomer (e), distinct from the monomer (b); and, '(1) the polymer P1 is obtained by polymerization from a mixture of monomers comprising at least one anionic monomer (a′) having a polymerizable vinyl group,', 'at least one nonionic hydrophobic monomer (b′) having a polymerizable vinyl group,', 'at least one cross-linking monomer (c′),', 'optionally at least one associative monomer (d′) having a polymerizable vinyl group and a hydrophobic hydrocarbon chain, and', 'optionally at least one additional nonionic monomer (e′), distinct from the monomer (b′)., '(2) the polymer P2 is obtained by polymerization from a mixture of monomers comprising2. The polymer according to claim 1 , wherein a polymer P1/polymer P2 weight ratio is between 45/55 and 95/5 claim 1 , in particular between 60/10 and 95/5.3. The polymer according to claim 1 , wherein said anionic monomer(s) is(are) selected from the group consisting of a monomer of acrylic acid claim 1 , a monomer of methacrylic acid claim 1 , salts thereof and mixtures thereof.4. The polymer according to claim 1 , wherein said anionic monomer(s) (a) represent(s) from 20% to 53% by weight claim 1 , based on a total weight of monomers constituting the polymer P1.5. ...

ITACONIC ACID POLYMERS AND COPOLYMERS

The disclosed technology relates to esterified and/or ether containing polymers derived from itaconic acid that are free of the less reactive tri-substituted vinyl monomers (e.g., citraconic acid or mesaconic acid) that may be used, for example, as builders in detergent applications, such as in the personal and home care market. 1. A polymer builder comprising monomer units derived from itaconic acid , wherein said polymer is substantially free of tri-substituted vinyl monomer impurities , and wherein from about 0.1 to about 60% of the total acid groups from all monomers in the polymer are either esterified , contain an ether linkage , or a combination thereof.2. (canceled)3. The polymer of comprising greater than about 25 mole % monomers derived from itaconic acid and less than about 75 mole % monomer derived from at least one of acrylic acid claim 1 , methacrylic acid claim 1 , AMPS claim 1 , sodium styrene sulfonate claim 1 , salts thereof claim 1 , esters thereof claim 1 , allyl ether monomers claim 1 , and combinations thereof.4. The polymer of having a number average molecular weight (Mn) of from about 500 to 100 claim 1 ,000.5. The polymer of having a number average molecular weight (Mn) of from about 100 to about 500.6. The polymer of comprising monomer units derived from itaconic acid at from about 30 to about 60 mole % and monomer units derived from acrylic acid at from about 40 to about 70 mole %.7. The polymer of comprising monomer units derived from itaconic acid at from about 60 to about 70 mole % and monomer units derived from acrylic acid at from about 30 to about 40 mole %.8. The polymer of comprising monomer units derived from itaconic acid at from about 35 to about 70 mole % claim 1 , monomer units derived from acrylic acid at from about 15 to about 30 mole % and monomer units derived from AMPS and/or sodium styrene sulfonate at from about 0.1 to about 20 mole %.9. The polymer of comprising monomer units derived from itaconic acid and (meth) ...

WATER-SOLUBLE OR WATER-DISINTEGRABLE COPOLYMER

A copolymer is based on α-β-unsaturated monocarboxylic acid, wherein the copolymer has a molar mass <100 000 g/mol. A process of preparing the copolymer compound includes mixing a copolymer in a melt with an impact modifier under action of shearing forces, a proportion of copolymer and impact modifier being selected preferably such that the copolymer forms a continuous phase and the impact modifier forms a discontinuous phase. 1. A copolymer based on α-β-unsaturated monocarboxylic acid , wherein the copolymer has a molar mass <100 000 g/mol.2. The copolymer according to claim 1 , wherein the molar mass is 25 000 g/mol to 90 000 g/mol.3. The copolymer according to claim 1 , wherein the α-β-unsaturated monocarboxylic acid has a weight fraction of 60% by weight to 95% by weight claim 1 , based on the total weight of the copolymer.4. The copolymer according to claim 1 , wherein the copolymer has in addition to the α-β-unsaturated monocarboxylic acid as comonomer an alkyl ester and/or alkoxy alkyl ester claim 1 , of an α-β-unsaturated monocarboxylic acid.5. The copolymer according to claim 4 , wherein the ester of the α-β-unsaturated monocarboxylic acid is selected from the group consisting of methyl acrylate claim 4 , ethyl acrylate claim 4 , n-butyl acrylate claim 4 , isobutyl acrylate claim 4 , methoxyethyl acrylate claim 4 , glycidyl acrylate claim 4 , methyl methacrylate claim 4 , ethyl methacrylate claim 4 , n-butyl methacrylate claim 4 , isobutyl methacrylate claim 4 , methoxyethyl methacrylate claim 4 , glycidyl methacrylate and mixtures thereof.6. The copolymer according to claim 4 , wherein the ester has a weight fraction of 5% by weight to 40% by weight claim 4 , based on the total weight of the copolymer.7. The copolymer according to claim 1 , wherein the copolymer is a copolymer of the α-β-unsaturated monocarboxylic acid and an ester of an α-β-unsaturated monocarboxylic acid.8. The copolymer according to claim 1 , wherein the copolymer is in the form of a ...

MULTILAYER ADHESIVE TAPE

Disclosed are powerful adhesive tapes, which rapidly coat rough and/or curved surfaces with different surface energies and thereby build up high adhesion. The adhesive joints formed in this way furthermore have good shear strength, even at elevated temperatures. Finally, enduring mechanical loading on the adhesive joints does not lead to the adhesive tape peeling from the surface. This is achieved with an adhesive tape comprising at least one foamed layer and at least one adhesive compound layer, wherein the adhesive compound layer contains at least one poly(meth)acrylate, and the poly(meth)acrylate is cross-linked with at least one covalent and at least one coordinative cross-linker. 1. An adhesive tape comprisingat least one foamed layer andat least one pressure-sensitive adhesive layer,where the pressure-sensitive adhesive layer comprises at least one poly(meth)acrylate and the poly(meth)acrylate is crosslinked with at least one covalent and at least one coordinative crosslinker.2. The adhesive tape as claimed in claim 1 , wherein the covalent crosslinker comprises at least one compound containing at least one cyclic ether function.3. The adhesive tape as claimed in claim 1 , wherein the coordinative crosslinker is selected from the group consisting of titanium dipropoxide bis(acetylacetonate) claim 1 , titanium dibutoxide bis(octylene glycolate) claim 1 , titanium dipropoxide bis(ethyl acetoacetate) claim 1 , titanium dipropoxide bis(lactate) claim 1 , titanium dipropoxide bis(triethanolaminate) claim 1 , titanium di-n-butoxide bis(triethanolaminate) claim 1 , titanium tri-n-butoxide monostearate claim 1 , butyl titanate dimer claim 1 , poly(titanium acetylacetonate) claim 1 , aluminum diisopropoxide monoethyl acetate claim 1 , aluminum di-n-butoxide monomethyl acetoacetate claim 1 , aluminum diisobutoxide monomethyl acetoacetate claim 1 , aluminum di-n-butoxide monoethyl acetoacetate claim 1 , aluminum di-sec-butoxide monoethyl acetoacetate claim 1 , aluminum ...

SCALE INHIBITION USING BRANCHED POLYMERS

Disclosed herein is a method for inhibiting scale comprising adding to a fluid that causes scale formation a polycarboxylic acid having a polymer backbone and a plurality of branches from the polymer backbone. 1. A method of inhibiting scale formation comprising adding , to a fluid that tends to form a scale , an antiscale agent selected from a polycarboxylic acid , a salt thereof , an ester thereof , a combination of two of the acid , the salt and the ester , or a combination of the salt , acid and the ester characterized by having a polymer backbone and a plurality of branches from the polymer backbone.2. The method of wherein the plurality of branches are two or more branches.3. The method of wherein the average degree of polymerization of the branches is from 2 to 20.4. The method of wherein there are five or more branches.5. The method of wherein there are no more than 20 branches.6. The method of wherein the polymer backbone has a degree of polymerization of 6 to 100.7. The method of wherein the number average molecular weight of the polycarboxylic acid is from 700 to 50 claim 1 ,000 g/mol.8. The method of wherein the polycarboxylic acid is formed from monomers selected from acrylic acid claim 1 , methacrylic acid claim 1 , butenoic acid claim 1 , crotonic acid claim 1 , itaconic acid claim 1 , an itaconic acid monoester claim 1 , fumaric acid claim 1 , a fumaric acid monoester claim 1 , maleic acid claim 1 , a maleic acid monoester claim 1 , or a combination thereof.9. The method of wherein the scale comprises barium sulfate.10. The method of wherein the scale comprises calcium carbonate.11. The method of wherein the amount of antiscale agent added to the fluid is in the range of 1 to 100 ppm based on total weight of the fluid.12. The method of wherein the amount of antiscale agent is 3 to 20 ppm.13. The method of wherein the antiscale agent is a polycarboxylic acid or a salt thereof where a portion of the —COO— groups are unhydrolyzed.14. The method of ...

Method of Preparing Superabsorbent Polymer

Provided is a method of preparing a superabsorbent polymer. More specifically, provided is a method of preparing a superabsorbent polymer capable of exhibiting improved initial absorbency and a rapid absorption rate by polymerizing monomers having acidic groups, of which part is neutralized with a basic material including potassium hydroxide, in the presence of an encapsulated foaming agent. 1. A method of preparing a superabsorbent polymer , comprising:preparing a monomer composition by mixing water-soluble ethylenically unsaturated monomers including (meth)acrylic acid with a basic material including potassium hydroxide, an encapsulated foaming agent, an internal crosslinking agent, and a polymerization initiator, wherein at least part of the acidic groups of the water-soluble ethylenically unsaturated monomers is neutralized with the basic material including potassium hydroxide;forming a water-containing gel polymer by performing thermal polymerization or photo-polymerization of the monomer composition;forming a base polymer in the form of powder by drying and pulverizing the water-containing gel polymer; andforming a surface-crosslinked layer by additionally crosslinking a surface of the base polymer in the presence of a surface crosslinking agent,wherein the encapsulated foaming agent has a structure including a core which contains a hydrocarbon and a shell which surrounds the core and is formed using a thermoplastic resin, and has a mean diameter of 5 μm to 30 μm before expansion and a maximum expansion ratio of 5 times to 15 times in air.2. The method of preparing a superabsorbent polymer of claim 1 ,wherein the basic material includes 50 mol % to 100 mol % of potassium hydroxide and 0 mol % to 50 mol % of sodium hydroxide.3. The method of preparing a superabsorbent polymer of claim 1 ,wherein the basic material is used in an amount of 0.5 mole to 0.9 mole with respect to 1 mole of the water-soluble ethylenically unsaturated monomer.4. The method of preparing ...

ENVIRONMENTALLY FRIENDLY AQUEOUS COATING COMPOSITION

An aqueous emulsion is made by emulsion polymerizing at least one free-radically polymerizable monomer and one or more di- or higher-functional chain-extending monomers in the presence of an aqueous solution of an oligomer made from a mixture of free-radically polymerizable monomers including acid-functional free-radically polymerizable comonomers, adhesion-promoting free-radically polymerizable comonomers and other free-radically polymerizable comonomers. The aqueous emulsion is substantially free of adipic dihydrazide, has a minimum film forming temperature≤55° C., and on drying has a Koenig hardness of at least 40 sec. 1. A method for making an aqueous emulsion , which method comprises:a) oligomerizing a mixture of free-radically polymerizable monomers in aqueous solution, the mixture including 1 to 45 wt. % acid-functional free-radically polymerizable comonomer(s), 0.5 to 20 wt. % adhesion-promoting free-radically polymerizable comonomer(s), and 98.5 to 50 wt. % other free-radically polymerizable comonomer(s), to form a water-soluble oligomer having a number average molecular weight (Mn) of 500 to 50,000 and a glass transition temperature (Tg) of at least 70° C., the acid-functional comonomer(s) rendering the oligomer water-soluble per se or by neutralization and the adhesion-promoting comonomer(s) imparting improved adhesion to a wood, plastic, metal or cementitious substrate when a coating composition containing the aqueous emulsion is applied and dried on such substrate,b) emulsion polymerizing, in the presence of an aqueous solution of the oligomer, at least one free-radically polymerizable monomer and 0.1 to 20 wt. %, based on the weight of free-radically polymerizable monomer(s), of at least one di- or higher-functional chain-extending monomer(s), to form an aqueous emulsion of a hydrophobic polymer having a Tg at least 40° C. lower than the Tg of the oligomer, wherein the weight of oligomer is 5 to 50 wt. % of the weight of oligomer plus hydrophobic ...

Method and apparatus for producing polyacrylic acid (salt)-based water absorbent resin

The purpose of the present invention is to provide a method for producing a water absorbent resin in which a water absorbent resin having excellent properties can be obtained effectively. The present invention relates to a method for producing a polyacrylic acid (salt)-based water absorbent resin, which includes a polymerization step of polymerizing an aqueous monomer solution containing a polymerization inhibitor, acrylic acid (salt) and an internal cross-linking agent to produce a water-containing gel-like cross-linked polymer, a gel-crushing step of performing the gel-crushing of the water-containing gel-like cross-linked polymer simultaneously with or subsequent to the polymerization to produce a particulate water-containing gel-like cross-linked polymer, and a drying step of supplying the particulate water-containing gel-like cross-linked polymer to a continuous through-flow belt-type dryer by a traverse conveyor to dry the particulate water-containing gel-like cross-linked polymer, in which the belt temperature of the traverse conveyor is 40 to 120° C. and/or the water soluble component in the particulate water-containing gel-like cross-linked polymer on the traverse conveyor is 10% by weight or less and the water soluble component is increased after the drying step.

DEVICE FOR PRODUCING POLY(METH)ACRYLATE IN POWDER FORM

An apparatus for producing pulverulent poly(meth)acrylate in a reactor for droplet polymerization having an apparatus for dropletization of a monomer solution for the production of the poly(meth)acrylate having holes through which the monomer solution is introduced, an addition point for a gas above the apparatus for dropletization, at least one gas withdrawal point on the circumference of the reactor and a fluidized bed, and above the gas withdrawal point the reactor has a region having a constant hydraulic internal diameter and below the gas withdrawal point the reactor has a hydraulic internal diameter that steadily decreases. 11513519111191193513535. An apparatus for producing pulverulent poly(meth)acrylate , comprising a reactor () for droplet polymerization comprising an apparatus () for dropletization of a monomer solution for the production of the poly(meth)acrylate comprising holes through which the monomer solution is introduced , an addition point () for a gas above the apparatus () for dropletization , at least one gas withdrawal point () on the circumference of the reactor () and a fluidized bed () , wherein above the gas withdrawal point () the reactor () comprises a region having a constant hydraulic internal diameter and below the gas withdrawal point () the reactor has a hydraulic internal diameter that steadily decreases , wherein in the region having a steadily decreasing hydraulic internal diameter there are tappers () affixed to the exterior of the reactor () , wherein the tappers () each generate an impact energy of from 25 J to 165 J and the number of tappers () is chosen such that an area-specific impact energy of from 1 to 7 J/mis applied.235. The apparatus according to claim 1 , wherein the tappers () are impulse tappers.335. The apparatus according to claim 1 , wherein the tappers () have a configuration such that they can generate at least one impact per minute.43535. The apparatus according to claim 1 , wherein the tappers () have a ...