ПОЛИМЕРИЗАЦИЯ В МАССЕ СОПРЯЖЕННЫХ ДИЕНОВ С ИСПОЛЬЗОВАНИЕМ КАТАЛИТИЧЕСКОЙ СИСТЕМЫ НА ОСНОВЕ НИКЕЛЯ

Изобретение относится к полимеризации в массе сопряженных диенов. Способ получения полидиена включает стадии: (i) обеспечения сопряженного диенового мономера; (ii) загрузки каталитической системы на основе никеля в сопряженный диеновый мономер, причем указанная каталитическая система на основе никеля представляет собой комбинацию или продукт реакции (a) никельсодержащего соединения, (b) алкилирующего агента и (c) источника фтора, при этом молярное отношение алкилирующего агента к никельсодержащему соединению составляет от примерно 10:1 до примерно 50:1, при этом молярное отношение источника фтора к никельсодержащему соединению составляет от примерно 70:1 до примерно 130:1; и (iii) загрузки модулирующего основания Льюиса в сопряженный диеновый мономер для полимеризации тем самым сопряженного диенового мономера в присутствии модулирующего основания Льюиса, в котором указанную стадию загрузки модулирующего основания Льюиса проводят отдельно от указанной стадии загрузки катализатора на основе ...

СИНТЕЗ ЖИДКОГО ПОЛИМЕРА И ФУНКЦИОНАЛИЗИРОВАННОГО ПОЛИМЕРА

Изобретение относится к способам получения полимера, имеющего, по меньшей мере, одну функциональную концевую группу, и жидкого полимера, диспергированного в нем. Изобретение также относится к композиции и к покрышке, содержащей полученный полимерный продукт. Способ включает: (а) получение «живого» полимера, где получение упомянутого «живого» полимера инициируют по анионному механизму, и он содержит катион; (b) добавление предшественника функционального инициатора, формулы FI-H, где Н представляет собой водород, a FI представляет собой функциональную группу, упомянутый Н обрывает цепь «живого» полимера, приводя в результате к получению жидкого полимера, а FI и упомянутый катион образуют функциональный инициатор; (с) добавление мономера, где функциональный инициатор инициирует анионную полимеризацию мономера; и (d) обрыв цепи реакции полимеризации, инициированной на стадии (с). Стадии от (а) до (с) могут быть проведены в одном реакторе, что делает возможным диспергирование жидкого полимера ...

СПОСОБ НЕПРЕРЫВНОГО СИНТЕЗА ДИЕНОВОГО ЭЛАСТОМЕРА

Изобретение относится к способу синтеза диеновых эластомеров в непрерывном режиме при высокой степени конверсии. Способ непрерывного синтеза диенового эластомера характеризуется тем, что включает следующие одновременные этапы: a) непрерывное введение в полимеризационный реактор, снабженный газовой фазой и оборудованный по меньшей мере одним средством перемешивания и разгрузочным устройством, по меньшей мере: i. одного или нескольких мономеров, подлежащих полимеризации, из которых по меньшей мере один мономер является сопряженным диеном, и ii. от 0 до 70 масс. % органического растворителя, в расчете на общую массу мономеров и растворителя, b) непрерывную полимеризацию мономера или мономеров, c) перемешивание полимеризационной среды путем непрерывного движения по меньшей мере одного средства перемешивания вокруг оси вращения, d) непрерывную выгрузку эластомерной массы на выходе с этапа полимеризации, e) непрерывную подачу выгруженной эластомерной массы на устройство резки и резка ее на частицы ...

СОДЕРЖАЩИЙ ПОЛЯРНЫЕ ГРУППЫ СОПОЛИМЕР, РЕЗИНОВАЯ СМЕСЬ И НЕШИПОВАННАЯ ШИНА

Настоящее изобретение относится к сополимеру, содержащему полярные группы, из которого может быть получена резиновая смесь, пригодная для изготовления зимних шин. Предложен сополимер, содержащий полярные группы, получаемый сополимеризацией сопряженного диенового соединения и винилового соединения, содержащего полярную группу, причем содержание цис-двойных связей в сопряженном диеновом соединении составляет не менее 80 мол.%, а виниловое соединение включает полимеризуемую ненасыщенную связь и полярную группу, представляющую собой гидроксильную группу, -NRили группу -Si(OR)(R),где R- водород или С-Суглеводородная группа, k - целое число от 1 до 3, при этом любой атом углерода, образующий ненасыщенную связь, и атом углерода, соединенный с полярной группой, соединены по меньшей мере через один атом углерода. Предложены также резиновая смесь, содержащая указанный сополимер, и полученная из такой резиновой смеси зимняя шина. Технический результат - предложенный сополимер позволяет получать зимнюю ...

СПОСОБ ПОЛУЧЕНИЯ ПОЛИДИЕНОВ

Изобретение относится к способу получения полидиенов. Способ получения полидиенов включает стадию полимеризации мономера сопряженного диена в присутствии дигидрокарбильного простого эфира с получением полидиена с содержанием цис-1,4-связей более 99%, где указанная стадия полимеризации проходит в смеси полимеризации, которая содержит менее 20 мас.% органического растворителя относительно общей массы смеси полимеризации, и где на указанной стадии полимеризации используют каталитическую систему на основе лантанида, которая включает комбинацию или продукт реакции ингредиентов, включающих (a) соединение лантанида, (b) алюминоксан, (c) алюминийорганическое соединение, отличное от алюминоксана, и (d) бромсодержащее соединение, выбранное из группы, состоящей из элементарного брома, бромсодержащих смешанных галогенов и органических бромидов. Технический результат - получение полимера с содержанием цис-1,4-связей более 99% и с низким молекулярно-массовым распределением, равным менее 2. 11 з.п. ф-лы ...

ПОЛИМЕРЫ ИЗОПРЕНА ИЗ ВОЗОБНОВЛЯЕМЫХ ИСТОЧНИКОВ

Изобретение относится к полимеру изопрена, полученному из возобновляемых источников. Полиизопреновый полимер состоит из повторяющихся элементов, образованных из изопрена, где полиизопреновый полимер характеризуется: (А) наличием величины δС более -22‰ или которая находится в диапазоне от -30‰ до -28,5‰, или (В) наличием величины δС, которая находится в диапазоне от -34‰ до -24‰, и где полиизопреновый полимер (i) не содержит белка, или (ii) имеет содержание цис-1,4-микроструктуры менее 99,9% и содержание транс-1,4-микроструктуры менее 99,9%, или (iii) имеет содержание 3,4-микроструктуры более 2%, или (iv) имеет содержание 1,2-микроструктуры более 2%, или (v) имеет средневзвешенную молекулярную массу, которая находится в диапазоне от 5000 до 100000; или (С) наличием величины δС более -22‰ или которая находится в диапазоне от -34‰ до -24‰, где полиизопреновый полимер включает по меньшей мере один блок повторяющихся элементов, образованных из изопрена. Указанный изопрен получают (а) культивированием ...

ГИДРОКСИАРИЛФУНКЦИОНАЛИЗОВАННЫЕ ПОЛИМЕРЫ

Изобретение относится к способу получения полимера, включающему по меньшей мере одно функционализующее звено и один или несколько типов полиеновых мономерных фрагментов. Указанный способ включает а) получение раствора, содержащего (1) один или более типов этиленненасыщенных мономеров, включающих по меньшей мере один тип полиена, и (2) инициирующее соединение, и b) обеспечение анионного инициирования для получения карбанионного полимера, имеющего среднечисленную молекулярную массу в диапазоне от 75000 до 150000 Да. Указанное инициирующее соединение описывается общей формулой RZQ-М, где М представляет собой атом щелочного металла, Rпредставляет собой замещенную или незамещенную арильную группу, содержащую по меньшей мере одну группу OR, где каждый Rпредставляет собой группу, которая является нереакционно-способной по отношению к М и способной гидролизоваться, Z представляет собой одинарную связь или замещенную или незамещенную циклическую алкиленовую, ациклическую алкиленовую или ариленовую ...

СОДЕРЖАЩИЙ ГИДРОКСИЛЬНЫЕ ГРУППЫ МЕТИЛСТИРОЛ И ПОЛИМЕРЫ НА ЕГО ОСНОВЕ

Изобретение относится к эластомерным композициям, содержащим один или более армирующих наполнителей. Описан способ получения соединения полимера, содержащего мономерное звено полиена, включающий а) анионное инициирование полимеризации по меньшей мере одного типа полиена и соединения, имеющего общую формулугде m означает целое число от 2 до 5, и каждая группа Gнезависимым образом является защитной группой, причем указанный, по меньшей мере, один тип полиена полимеризуют до полимеризации указанного соединения, и где число звеньев, получаемых из указанного соединения, равно от 1 до 10, с получением, таким образом, полимера, и b) одно из тушения полимера, реакции полимера с соединением, обрывающим рост цепи, или полимеризации дополнительных количеств указанного по меньшей мере одного типа полиена. Технический результат: улучшение параметров сцепления с дорогой и сопротивление качению. 11 з.п. ф-лы, 7 табл.

СПОСОБ ПОЛУЧЕНИЯ ИЗООЛЕФИНОВЫХ ПОЛИМЕРОВ С ИСПОЛЬЗОВАНИЕМ ТРЕТИЧНОГО ПРОСТОГО ЭФИРА

Изобретение относится к получению бутилкаучуков. Предложены способ получения изоолефиновых полимеров путём подготовки рекционной среды, содержащей единственный разбавитель, изоолефин, мультиолефин и соединение алюминия с третичным простым эфиром в качестве инициирующей системы, где молярное соотношение третичного эфира к сумме атомов алюминия из используемых соединений алюминия составляет от 0,001 до 0,200, с последующей полимеризацией, мономеров в реакционной среде в присутствии данной инициирующей системы при температуре в диапазоне от -100°C до -60°C с образованием результирующей среды, причём получемый изоолефиновый полимер содержит бутилкаучук, имеющий молярное отношение структуры 1,4-изопрена к разветвленной от 14,0 до 20,0; варианты бутилкаучуков для изготовления каучуковых изделий, полученные по предложенному способу, и смесь, содержащая предложенный бутилкаучук. Технический результат - обеспечение универсального способа получения высококачественных изоолефиновых полимеров, таких ...

АМИНОСОДЕРЖАЩИЕ ПОЛИМЕРЫ С КОНЦЕВЫМИ КАРБИНОЛЬНЫМИ ГРУППАМИ

Изобретение относится к диеновым полимерам, способу их получения, их применению, к вулканизующимся каучуковым композициям, их применению, а также к шине и формованным изделиям, содержащим каучуковую композицию в вулканизованной форме. Диеновые полимеры содержат в начале полимерных цепей третичные аминогруппы формулы (II), а также имеют по концам полимерных цепей силансодержащие карбинольные группы формулы (III) в виде солей металлов. Причем R, Rявляются одинаковыми или различными и представляют собой алкильный, циклоалкильный, арильный, алкарильный и аралкильный радикалы, которые могут содержать гетероатомы, такие как кислород, азот, сера и/или кремний. В указанных формулах (II) и (III) Z означает двухвалентный органический радикал, который может содержать, кроме атомов углерода и водорода, гетероатомы, такие как кислород, азот, сера и/или кремний. Причем R, R, R, Rявляются одинаковыми или различными и означают водород, алкильный, циклоалкильный, арильный, алкарильный и аралкильный радикалы ...

СПОСОБ ПОЛУЧЕНИЯ ПОЛИДИЕНОВ ПОЛИМЕРИЗАЦИЕЙ В ОБЪЕМЕ

Настоящее изобретение относится к способу полимеризации в объеме для получения полидиенов. Описан способ получения полидиена, который включает стадию (i) объединения (a) сопряженного диенового мономера, (b) органофосфата лантаноида, (c) алкилирующего агента и (d) хлорсодержащего соединения при мольном соотношении алкилирующего агента и органофосфата лантаноида от 2:1 до 500:1, мольном соотношении хлорсодержащего соединения и органофосфата лантаноида от 0,5:1 до 20:1, и количестве органофосфата лантаноида от 0,001 до 10 ммоль на 100 г сопряженного диенового мономера, где на упомянутой стадии (i) образуется полимеризационная смесь, которая включает менее чем 20 мас.% растворителя при расчете на совокупную массу полимеризационной смеси и (ii) осуществления полимеризации сопряженного диенового мономера с образованием полидиена, имеющего по меньшей мере 98% цис-1,4 звеньев и молекулярно-массовое распределение менее 2,2. Технический результат - получение полидиена, характеризующегося комбинацией ...

СМЕСЬ МЕРКАПТАНОВ

Предложена новая смесь, содержащая 2,2,4,6,6-пентаметилгептантиол-4, 2,4,4,6,6-пентаметилгептантиол-2, 2,3,4,6,6-пентаметилгептантиол-2, а также 2,3,4,6,6-пентаметилгептантиол-3, способ ее получения и ее применение в качестве регулятора молекулярной массы при получении синтетических каучуков. Способ получения смеси включает взаимодействие сероводорода с триизобутеном в ходе непрерывного процесса при температурах от 0°C до -60°C, причем сероводород перед взаимодействием подвергают сушке, используемый триизобутен имеет содержание воды максимально 40 частей на млн, в качестве катализатора применяют трифторид бора в количестве 0,6 до 0,9% масс., в пересчете на используемый триизобутен, превращение осуществляют при отсутствии соединений, образующих комплексы с трифторидом бора, а также реакционную смесь по окончании реакции вводят в контакт с водным щелочным раствором, а катализатор отделяют, причем используемый для реакции с сероводородом триизобутен содержит четыре изомера: 2,2,4,6,6-пентаметилгептен ...

СПОСОБ И СИСТЕМА КАТАЛИЗАТОРА ДЛЯ ПОЛУЧЕНИЯ ПОЛИДИЕНА

Изобретение относится к способам получения полидиенов. Предложен способ получения полидиена, включающий стадию полимеризации сопряженного диенового мономера с использованием каталитической системы на лантаноидной основе в присутствии силанового соединения формулы Siωxθ4-x, где каждый ω независимо представляет собой винильную группу, замещенную винильную группу, аллильную группу или замещенную аллильную группу, каждый θ независимо представляет собой атом водорода или одновалентную органическую группу, или две и более группы θ могут соединяться с образованием поливалентной органической группы, а x представляет собой целое число в диапазоне от 1 до 4, где ω и θ не включают атомов галогена. Технический результат – предложенный способ позволяет получать полидиены с улучшенными вязкоупругими свойствами. 14 з.п. ф-лы, 7 ил., 7 табл., 28 пр.

СПОСОБ ПОЛУЧЕНИЯ ЛАТЕКСОВ

Изобретение относится к способу получения латексов, которые могут найти применение в различных отраслях промышленности, в том числе в производстве водоэмульсионных красок, водостойких обоев, клеев, при аппретировании ковровых изделий. Описан способ получения латексов эмульсионной (со)полимеризацией мономеров винилового ряда или сопряженных диенов с мономерами винилового ряда в водной среде, в реакторе с перемешивающим устройством, в присутствии радикального инициатора, эмульгаторов, регулятора молекулярной массы и бифункциональной добавки. Бифункциональная добавка одновременно выполняет функцию диспергатора и поверхностно-активного вещества. В качестве бифункциональной добавки используют олигомерные продукты, которые представляют собой биоразлагаемые олигодиалкилсилоксаны (ОДС), выбираемые изα,ω-дигидрокси-олигодиалкилсилоксана формулы,где Alk представляет собой от C-Cалкильную группу, n=10-30,α,ω-дикарбокси-олигодиалкилсилоксана формулы,где Alk представляет собой от C-Cалкильную группу ...

КАТАЛИТИЧЕСКАЯ СИСТЕМА И СПОСОБ ПОЛУЧЕНИЯ ПОЛИДИОЛЕФИНОВ

Описывается каталитическая система для полимеризации диолефинов, включающая (А) соль общей формулы МL3, где М - Sс, Y или любой металл с атомным номером от 57 до 71 и L - анион, кроме галогена (Б), соединение общей формулы MeRZ1, где Me - металл, относящийся к группе I, II или III Периодической системы элементов, R1 - алифатический или циклоалифатический радикал, содержащий от 1 до 20 атомов углерода; ароматический радикал, содержащий от 6 до 20 атомов углерода, атом водорода; Z - целое число от 1 до 3, равное валентности Me, при условии, что если Z=3, только одна из трех групп R1, связанных с металлом, может быть водородом, и В) металлоорганическое соединение, отличающаяся тем, что в качестве металлоорганического соединения она содержит производное бора общей формулы ВR3-m2 (С6Н5-nRn3)m, где R2 - линейный или разветвленный, содержащий от 1 до 20 атомов углерода, алифатический радикал, циклоалифатический радикал, содержащий от 6 до 20 атомов углерода, ароматический радикал, содержащий от ...

СПОСОБ ПОЛУЧЕНИЯ ПОЛИМЕРА С ИСПОЛЬЗОВАНИЕМ КАТАЛИТИЧЕСКОЙ КОМПОЗИЦИИ И КАТАЛИТИЧЕСКАЯ КОМПОЗИЦИЯ НА ОСНОВЕ НИКЕЛЯ

В настоящем изобретении разработан способ получения полимера сопряженного диена. Заявлен также состав используемой каталитической композиции. Способ получения полимера сопряженного диена включает полимеризацию сопряженного диенового мономера в присутствии каталитически эффективного количества каталитической композиции, образовавшейся путем смешения: (a) никельсодержащего соединения; (b) алкилирующего агента; (c) фторсодержащего соединения; (d) карбоновой кислоты; и (e) спирта, выбранного из группы, состоящей из алифатических спиртов, циклических спиртов, ненасыщенных спиртов, ароматических спиртов, гетероциклических спиртов и полициклических спиртов, причем указанную полимеризацию осуществляют в неполярном растворителе, молярное отношение алкилирующего агента к никельсодержащему соединению (алкилирующий агент/Ni) составляет приблизительно от 1:1 до 200:1, молярное отношение фторсодержащего соединения к никельсодержащему соединению (F/Ni) составляет приблизительно от 7:1 до 500:1, молярное ...

Модифицированный полимер на основе сопряженного диена и включающая его резиновая композиция

Настоящее изобретение относится к модифицированному полимеру на основе сопряженного диена, а также к резиновой композиции, содержащей данный полимер. Модифицированный полимер на основе сопряженного диена включает звено, полученное из модификатора, представляющего собой аминосодержащее алкоксисилановое соединение, содержащее три или более алкоксигруппы, связанные с кремнием; нефункциональную цепь, образующую кремний-углеродную связь с одной стороны звена, полученного из модификатора, и включающую повторяющееся звено, полученное из мономера на основе сопряженного диена; и функциональную цепь, образующую кремний-углеродную связь с другой стороны звена, полученного из модификатора, и включающую два или более звеньев, полученных из мономера, содержащего N-функциональную группу. Полученный полимер имеет превосходное сродство с наполнителем, а также превосходную обрабатываемость и стойкость к истиранию. 2 н. и 7 з.п. ф-лы, 7 табл., 3 пр.

СПОСОБ ПОЛУЧЕНИЯ КОМПОЗИЦИИ ДЛЯ МОДИФИКАЦИИ 1,4-ЦИС-ПОЛИДИЕНА, СПОСОБ ПОЛУЧЕНИЯ МОДИФИЦИРОВАННОГО 1,4-ЦИС-ПОЛИДИЕНА

Изобретение относится к способу получения композиции для модификации 1,4-цис-полидиенов. Описан способ получения композиции для модификации 1,4-цис-полидиенов путем взаимодействия по меньшей мере одного соединения, выбранного из группы аминов, и по меньшей мере одного соединения, выбранного из группы хиноловых эфиров. Также описана композиции для модификации 1,4-цис-полидиенов, полученная указанным выше способом; описан способ получения модифицированных 1,4-цис-полидиенов, включающий введение в полимер полученной указанным выше способом композиции для модификации; описан модифицированный полидиен, полученный указанным выше способом; а также описана резиновая смесь, применяемая для производства шин и резинотехнических изделий, полученная на основе указанного выше модифицированного 1,4-цис-полидиена. Технический результат – получение модифицированного 1,4-цис-полидиена, обладающего улучшенной технологичностью на стадии резиносмешения (низкие значения вязкости по Муни резиновой смеси, хорошее ...

СТАБИЛИЗИРОВАННЫЕ МНОГОВАЛЕНТНЫЕ ИНИЦИАТОРЫ АНИОННОЙ ПОЛИМЕРИЗАЦИИ И СПОСОБЫ ПОЛУЧЕНИЯ УКАЗАННЫХ ИНИЦИАТОРОВ

... 1. Композиция стабилизированного раствора инициатора, содержащего:i. инициатор с удлиненной цепью, определенный формулой I:где SOL представляет собой двухвалентный солюбилизирующий компонент, х представляет собой целое число от 1 или более, Q представляет собой (a) элемент, выбранный из группы, состоящей из О, S, N, Р и Si, или (b) многовалентную органическую группу, и R, R, Rи Rнезависимо представляют собой одновалентную органическую группу, или Rсоединяется с Rс образованием трехвалентной органической группы и/или Rсоединяется с Rс образованием трехвалентной органической группы, или инициатор с удлиненной цепью, определенный формулой VI:где каждый SOL независимо представляет собой двухвалентный солюбилизирующий компонент, x представляет собой целое число от 1 или более, и R, Rи Rкаждый независимо представляют собой двухвалентную органическую группу; иii. алифатический растворитель, циклоалифатический растворитель или смесь указанных растворителей.2. Композиция по п. 1, отличающаяся тем ...

СПОСОБ ПОЛУЧЕНИЯ ДИЕНОВЫХ ПОЛИМЕРОВ ИЛИ СТАТИСТИЧЕСКИХ ВИНИЛАРЕН-ДИЕНОВЫХ СОПОЛИМЕРОВ

... 1. Способ получения диеновых полимеров или статистических виниларен-диеновых сополимеров, включающий анионную (со)полимеризацию в присутствии, по меньшей мере, одного углеводородного растворителя, по меньшей мере, одного конъюгированного диенового мономера и, возможно, по меньшей мере, одного виниларена, в присутствии, по меньшей мере, одного литиевого инициатора, по меньшей мере, одного апротонного полярного соединения и, по меньшей мере, одного соединения, содержащего одну или более функциональную группу ацетиленового типа.2. Способ получения диеновых полимеров или статистических виниларен-диеновых сополимеров по п. 1, где указанный углеводородный растворитель выбран из алифатических или ароматических углеводородных растворителей, таких как н-пентан, н-гексан, н-гептан, циклогексан или их смеси.3. Способ получения диеновых полимеров или статистических виниларен-диеновых сополимеров по пп. 1 или 2, где указанный конъюгированный диеновый мономер выбран из конъюгированных диеновых мономеров ...

СПОСОБ ПОЛУЧЕНИЯ ПОЛИДИЕНОВ ПОЛИМЕРИЗАЦИЕЙ В ОБЪЕМЕ

... 1. Способ получения полидиена, который включает стадию полимеризации сопряженного диенового мономера с использованием каталитической системы на основе лантаноида, включающей комбинацию или продукт реакции: (а) соединения лантаноида, выбираемого из группы, состоящей из органофосфатов лантаноидов, органофосфонатов лантаноидов и органофосфинатов лантаноидов, (b) алкилирующего агента и (с) хлорсодержащего соединения, где упомянутая стадия полимеризации протекает в полимеризационной смеси, которая включает менее, чем 20 мас.% растворителя при расчете на совокупную массу полимеризационной смеси. ! 2. Способ получения полидиена, который включает стадию объединения: (а) сопряженного диенового мономера, (b) соединения лантаноида, выбираемого из группы, состоящей из органофосфатов лантаноидов, органофосфонатов лантаноидов и органофосфинатов лантаноидов, (с) алкилирующего агента и (d) хлорсодержащего соединения, где упомянутая стадия объединения приводит к получению полимеризационной смеси, которая ...

СПОСОБ ПОЛИМЕРИЗАЦИИ В ОБЪЕМЕ ДЛЯ ПОЛУЧЕНИЯ ПОЛИДИЕНОВ

Изобретение относится к способу полимеризации в массе для получения полидиенов. Способ осуществляют путем обеспечения по меньшей мере одного диенового мономера (DM) и необязательно по меньшей мере одного сомономера (СОМ). Проводят контактирование по меньшей мере одного диенового мономера (DM) и необязательно по меньшей мере одного сомономера (СОМ) с каталитической системой (CS) с образованием реакционной смеси (RM). Реакционную смесь (RM) полимеризуют по меньшей мере в одном корпусе реактора (RV). Реакционная смесь (RM) содержит растворитель, разбавитель и/или диспергатор в количестве ≤10 мас.% от общей массы реакционной смеси (RM). Коэффициент превращения диенового мономера (DM) и необязательно сомономера (СОМ) составляет ≥80%. Реакционная смесь (RM) содержит по меньшей мере один диеновый мономер (DM) в количестве ≥50,0 мас.%. Способ полимеризации в массе для получения диенов обеспечивает высокую степень превращения мономера по меньшей мере в 80% и приводит к выходу полидиенов с улучшенными ...

МОДИФИЦИРОВАННЫЙ ПОЛИМЕР СОПРЯЖЕННОГО ДИЕНА, КАУЧУКОВАЯ КОМПОЗИЦИЯ И ШИНЫ

... 1. Модифицированный полимер сопряженного диена, полученный полимеризацией сопряженного диенового соединения в присутствии катализатора, содержащего соединение лантаноидного редкоземельного элемента в органическом растворителе, с последующей модификацией полученного полимера, содержащего активный металлоорганический центр, модификатором, в котором скорость модификации составляет не менее 15% и содержание цис-1,4-звеньев в сопряженном диеновом участке, измеренное с помощью инфракрасной спектроскопии с Фурье-преобразованием, удовлетворяет зависимости (I) ! ! или скорость модификации составляет не менее 75% и содержание цис-1,4-звеньев в сопряженном диеновом участке, измеренное с помощью инфракрасной спектроскопии с Фурье-преобразованием, удовлетворяет зависимости (II) ! ! 2. Модифицированный полимер сопряженного диена по п.1, в котором для модифицированного полимера, полученного модификацией полимера, имеющего активный металлоорганический центр, скорость модификации составляет не менее чем ...

СМЕСЬ НА ОСНОВЕ КАУЧУКА И АВТОМОБИЛЬНАЯ ШИНА

КАТАЛИЗАТОРЫ ДЛЯ ПОЛИМЕРИЗАЦИИ ОЛЕФИНОВ

... 1. Каталитическая композиция, содержащая ! а) соединение переходного металла со следующей формулой: ! ! в которой ! М означает титан, цирконий или гафний; ! Rn означает алифатическую, арильную, алкарильную или ариларильную группу, содержащую 1-20 атомов углерода; ! n - 0 или 1; ! Х означает независимо элемент 15 группы или 16 группы; ! Е означает двухвалентную мостиковую группу, содержащую до 40 атомов, не считая водород, которая связывает X и Y; ! Y означает независимо элемент группы 15 или 16; ! а равняется 1, 2, 3 или 4; ! Z означает одновалентную анионную группу; ! Z' означает одновалентную анионную группу; ! b равняется 0, 1 или 2, и с равняется 0, 1 или 2; ! L означает нейтральный донорный лиганд; ! d равняется 0, 1 или 2; и ! b) химически обработанный твердый оксид. ! 2. Каталитическая композиция по п.1, в которой Х означает азот, кислород, фосфор или серу. ! 3. Каталитическая композиция по п.1, в которой Y означает азот, кислород, фосфор или серу. ! 4. Каталитическая композиция ...

СПОСОБ И СИСТЕМА КАТАЛИЗАТОРА ДЛЯ ПОЛУЧЕНИЯ ПОЛИДИЕНА

... 1. Способ получения полидиена, включающий стадию полимеризации сопряженного диенового мономера с использованием каталитической системы на лантаноидной основе в присутствие винилсилана, аллилсилана или аллилвинилсилана.2. Способ по п.1, в котором упомянутую стадию полимеризации сопряженного диенового мономера проводят в присутствие винилсилана, выбираемого из группы, состоящей из винилдиметилсилана, винилтриметилсилана, винилтриэтилсилана, винилтрифенилсилана, винил-трет-бутилдиметилсилана, винил-ди-н-октилметилсилана, винилфенилметилсилана, винилфенилдиметилсилана, винил(трифторметил)диметилсилана, дивинилдиметилсилана, тривинилсилана, тривинилметилсилана, тетравинилсилана, трис(винилдиметилсилокси)метилсилана, трис(винилдиметилсилокси)фенилсилана, винилдиметилфторсилана, винилдиметилхлорсилана, винилдифенилхлорсилана, винилфенилметилхлорсилана, винилметилдихлорсилана, винилфенилдихлорсилана, винилтрихлорсилана, дивинилдихлорсилана, тривинилхлорсилана, винил(хлорметил)диметилсилана, винил ...

МОДИФИЦИРОВАННЫЕ ПОЛИМЕРНЫЕ КОМПОЗИЦИИ

... 1. Композиция, содержащая модифицированный полимер, включающая:по меньшей мере одну разветвленную модифицированную полимерную макромолекулу, содержащую по меньшей мере одну из структур (ib1), (ib2), (ib3) или (ib4); ипо меньшей мере одну линейную модифицированную полимерную макромолекулу, содержащую по меньшей мере одну из структур (iib1) или (iib2);где по меньшей мере одна разветвленная модифицированная полимерная макромолекула и по меньшей мере одна линейная модифицированная полимерная макромолекула каждая, независимо, дополнительно включает по меньшей мере одну аминогруппу, выбранную из группы, состоящей из:и их комбинаций;гдеN обозначает атом азота;С обозначает атом углерода;Н обозначает атом водорода;Е является по меньшей мере двухвалентным и выбран из группы, состоящей из: a) (C-C)-алкила, который может быть замещен одной или несколькими из следующих групп: аминогруппы, RRRSi- или RRRSi-аминогруппы; (С-C)-арила; (C-C)-аралкила; b) атома кислорода (О); c) атома серы (S); d) N-CHR-CR ...

ГИДРОКСИАРИЛФУНКЦИОНАЛИЗОВАННЫЕ ПОЛИМЕРЫ

... 1. Способ получения полимера, который включает по меньшей мере одно функционализующее звено и один или несколько типов полиеновых мономерных фрагментов, при этом упомянутый способ включает:a) получение раствора, который содержит(1) один или более типов этиленненасыщенных мономеров, которые включают, по меньшей мере, один тип полиена, и(2) инициирующее соединение, которое описывается общей формулой RZQ-M, где М представляет собой атом щелочного металла, Rпредставляет собой замещенную или незамещенную арильную группу, содержащую по меньшей мере один заместитель OR, где каждый Rпредставляет собой группу, которая является нереакционно-способной по отношению к М и способной гидролизоваться, Z представляет собой одинарную связь или замещенную или незамещенную циклическую алкиленовую, ациклическую алкиленовую или ариленовую группу, a Q представляет собой группу, связанную с М через атом С, N или Sn; иb) обеспечение анионного инициирования упомянутым инициирующим соединением полимеризации упомянутых ...

КАТАЛИТИЧЕСКАЯ КОМПОЗИЦИЯ ДЛЯ ПОЛИМЕРИЗАЦИИ СОПРЯЖЕННОГО ДИЕНОВОГО МОНОМЕРА

... 1. Каталитическая композиция для полимеризации сопряженного диенового мономера, включающая компоненты (а) и (b), гдекомпонент (а) представляет собой лантаноид-алюминиевый структурированный комплекс, имеющий структуру, представленную следующей формулой (1) или (2):[Формула 2]где Ln означает элемент, выбранный из группы, состоящей из лантаноидных элементов, Sc и Y; и R-Rмогут быть одинаковыми или разными и означают радикал, выбранный из группы, состоящей из атома водорода, алкильной группы с 1-8 атомами углерода, алкилсилильной группы, алкилоксигруппы и диалкиламидной группы; икомпонент (b) означает алкилалюминиевое соединение, представленное формулой HAlR ,где Rможет быть одинаковым или разным и означает алкильную группу с 1-8 атомами углерода или алкенильную группу с 1-8 атомами углерода; и n означает целое число от 0 до 3.2. Каталитическая композиция для полимеризации сопряженного диенового мономера по п. 1, дополнительно включающая одно или более соединений (с), выбранных из группы, состоящей ...

СПОСОБ И СИСТЕМА КАТАЛИЗАТОРА ДЛЯ ПОЛУЧЕНИЯ ПОЛИДИЕНА

... 1. Способ получения полидиена, включающий стадию полимеризации сопряженного диенового мономера с использованием каталитической системы на лантаноидной основе в присутствие силанового соединения, описывающегося формулойSiωθ,где каждый ω независимо представляет собой винильную группу, замещенную винильную группу, аллильную группу или замещенную аллильную группу, каждый θ независимо представляет собой атом водорода или одновалентную органическую группу, или две и более группы θ могут соединяться с образованием поливалентной органической группы, а x представляет собой целое число в диапазоне от 1 до 4, где ω и θ не включают атомов галогена.2. Способ по п. 1, в котором упомянутое силановое соединение представляет собой винилсилан, выбираемый из группы, состоящей из винилдиметилсилана, винилтриметилсилана, винилтриэтилсилана, винилтрифенилсилана, винил-трет-бутилдиметилсилана, винил-ди-н-октилметилсилана, винилфенилметилсилана, винилфенилдиметилсилана, дивинилдиметилсилана, тривинилсилана, тривинилметилсилана ...

Способ получения карбоцепных полимеров

Способ получения статистических сополимеров

Способ получения полидиенов

VERFAHREN ZUR GASPHASENPOLYMERISATION

MODIFIZIERTES KONJUGIERTES DIENCOPOLYMER, VERFAHREN ZU DESSEN HERSTELLUNG UND ZUSAMMENSETZUNG DARAUS

Dienpolymere und Diencopolymere mit einer Alkoxysilangruppen

Verfahren zur Herstellung von Mischpolymerisaten des Butadiens

Oxolanyl cyclische Acetale als Modifizierungsmittel bei der anionischen Polymerisation.

Verfahren zum Polymerisieren von Verbindun-gen mit polymerisierbaren CC-Doppelbindungen

Verfahren zur Emulsionspolymerisation von Dienen, insbesondere Butadien

Verfahren zur Herstellung symmetrischer oder unsymmetrischer aliphatischer, ditertiaerer Peroxyde

Blockierung von Polydienen.

POLYMERISATION FÜR OLEFINISCHE MONOMERE UNTER VERWENDUNG VON ANIONISCHEN INITIATOREN

Oxolanyl cyclische Acetale als Modifizierungsmittel bei der anionischen Polymerisation.

Liq. conjugated diene! polymer prodn. - using aryl polymerisation initiators and aryl charge transfer agent, in the presence of a di or tri amine

Conjugated diolefin is homopolymerised or copolymerised with anion polymerisable vinyl cpd. using a cpd. of formula Ar-CR1R2Na (where Ar is aryl, R1 and R2 are hydrogen or alkyl) as polymerisation initiator and cpd. of formula Ar'-CR3R4H (where Ar' is aryl, and R3 and R4 are hydrogen or alkyl) as chain transfer agent in the presence of solvent and a cpd. of the general formula (R5)(R6)N-(CH2)n-N(R7)(R8) or (R9)(R10)N-(CH2)nN(R11) (CH2)nN(R12)(R13). R5 to R13 is alkyl, and n is 1 to 6. It is possible to obtain liq. diene polymer contg. high vinyl content and low gel prodn. by a simple procedure at low cost.

Verfahren zur Herstellung harter Harzmassen

Verfahren zur Herstellung von konjugierten Dien-(Co)Polymeren mit hohem Transgehalt und niedrigem Vinylgehalt.

Verfahren zur Herstellung eines waessrigen Latex kautschukartiger Polymerisate mit Latexteilchen erhoehter Teilchengroesse

Verfahren zur Herstellung haertbarer Harnstoff- und bzw. oder Urethangruppen enthaltender Polykondensationsprodukte

Verfahren zur Emulsions-Polymerisation

Verfahren zur Polymerisation oder Mischpolymerisation konjugierter diolefinischer Kohlenwasserstoffe

Verfahren zur Polymerisation einer Monomerenkomposition mit mindestens 70% konjugiertem Dien

Verfahren zur Herstellung von Polythioaethern

Polymerisationsverfahren und Vorrichtung zu ihrer Durchfuehrung

Verfahren zur Herstellung von difunktionellen Butadienpolymeren mit endstaendigen Carboxylgruppen

Verfahren und Katalysator zum Polymerisieren von AEthylen

Polybutadien-gepfropfter Isoprenkautschuk, Herstellungsverfahren hierfür und Vulkanisat und gemischte Verbindung davon

Polybutadien-gepfropfter Isoprenkautschuk, wobei, berechnet auf der Basis des Gesamtgewichtes des Polybutadien-gepfropften Isoprenkautschuks, der Gehalt der strukturellen Butadieneinheiten 0,5-8 Gew.-% und der Gehalt der strukturellen Isopreneinheiten 92-99,5 Gew.-% ist; das Molekulargewicht im Zahlenmittel des Polybutadien-gepfropften Isoprenkautschuks 2 × 10-5 × 10, die Polydispersität 3-4, der Verzweigungsfaktor 0,5-0,98 und der Gehalt des Polybutadien-gepfropften Isoprenkautschuks mit cis-1,4-Struktur 95-99 Gew.-% ist.

Herstellung von kautschukartigen Polymerisationsprodukten von Butadien-kohlenwasserstoffen nach dem Emulsionsverfahren

Diene! homopolymer and (block) copolymer prepn. - by polymerising diene in the presence of organo-lithium cpd. and sodium or potassium salt of phenol!-amino resin

Carbon chain homopolymer and block- and statistical copolymers of conjugated diene with vinyl aromatic monomers are prepd. by polymerisation of dienes with (di)vinyl aromatic monomers in a hydrocarbon solvent at -30 to 150 deg.C in the presence of a lighium organic catalyst R(Li)x (where R is a hydrocarbon gp. or a diene polymer and x is 1-4) and a reaction prod. of a phenolamino resin with an alkali metal of formula (I). In (I) n is 1;10, M is sodium or potassium, R2 is 2-20C alkyl or 7-20C arylalkyl and R1 is H, 1-6C alkyl or 7-9C arylalkyl. (I) is used in an amt. of 0.07-2.00 mVal per mVal active lithium. (I) is an antioxidant and non-volatile preventing oxidn. of the polymer during sepn. and drying. The polymer can be used for tyres, shoes and cables.

Verfahren zur Herstellung von vernetzten Chloroprenpolymerisaten und Polymerisatmischungen,die diese enthalten

Verfahren zur Herstellung kautschukelastischer 1, 3-Dienpolymerisate mit verbessertenFestigkeiten

Verfahren zur Hemmung der Polymerisation von Monomeren

Verfahren zur Herstellung von stereospezifischen Kautschukpolymeren

Modifizierte Butyl-Kautschuk-Zusammensetzung

Neue Trägerkatalysatoren, Verfahren zu deren Herstellung sowie deren Verwendung zur Polymerisation konjugierter Diene in der Gasphase

Verfahren zur Herstellung von Homo- und Copolymerisaten von konjugierten Diolefinen

Verfahren zur Herstellung niedrigviskoser,geruchsarmer,carboxylgruppenhaltiger Styrol/Butadien-Kunststoffdispersionen

Verfahren zur Polymerisation einer Monomerenkomposition mit mindestens 70% konjugiertem Dien

Verfahren zur Herstellung von Polymeren

VERFAHREN ZUR HERSTELLUNG EINES POLYMEREN DURCH POLYMERISATION VON DIHYDRODICYCLOPENTADIEN

VERFAHREN ZUR HERSTELLUNG VON ILITHIOKOHLENWASSERSTOFFEN

Polymerisation of conjugated dienes

Conjugated dienes containing from 4 to 8 carbon atoms per molecule are polymerized in the presence of a hydrocarbon diluent using a catalyst comprising (1) a compound RALX2 where R is an alkyl radical, preferably containing from 1 to 20 carbon atoms, and X is a halogen, preferably chlorine, bromine or iodine and (2) the reaction product of a cobaltous or nickelous compound with an amine-type compound to give rubbery polymers. The alkylaluminium dihalide may be mixed with a dialkyl aluminium halide provided that the amount of dihalide in the mixture is greater than 50%. The cobaltous and nickelous compounds are the chloride, bromide, iodide, oxide, hydroxide, oxyhalide, carbonate, sulphate, phosphate, nitrate, sulphide, cyanide, thiocyanate and cobaltous and nickelous salts of organic acids. The amine type compounds are ammonia; primary, secondary and tertiary amines and heterocyclic amine type compounds e.g. pyridine, quinoline, morpholine, piperidine and the alkyl derivatives thereof.

Preparation of diene polymers

A conjugated diene is polymerized in the presence of a salt of the adduct of a drying oil, a semi-drying oil or a long oil alkyd resin and an alpha-beta ethylenically unsaturated dicarboxylic acid or an alpha-beta-ethylenically unsaturated dicarboxylic acid anhydride. Specified dienes are butadiene, isoprene, chloroprene, 2-3-di-methyl butadiene and myrcene and their mixtures with styrene, alpha-chloro-styrene, vinyl acetate, methyl methacrylate, acrylic acid, acrylonitrile and N-butoxy-methyl acrylamide. The unsaturated acid may be maleic acid or anhydride and the drying oil linseed oil while the adduct may be neutralised, e.g. with 2-methyl -2- amino-1-3-propanediol. U.S.A. Specification 2,941,968 is referred to.

Improvements in or relating to the production of butadiene polymers and copolymers

Polymers and copolymers of 1,3-butadienes, e.g. isoprene, 2,3-dimethyl butadiene, piperylene, chloroprene, 2-cyano-butadiene-1,3 are made by polymerizing in aqueous emulsion in the presence of a mixture of an organic sulphur-containing modifier containing between 4 and 16 carbon atoms and having at least one divalent sulphur atom which is not a part of a ring structure and an aliphatic mercaptan containing from 16 to 26 carbon atoms. The monomers may include styrene, p-chlorostyrene, p-methoxystyrene, vinyl naphthalene, acrylonitrile, methacrylonitrile, alpha chloro-acrylonitrile, methyl acrylate, methyl, ethyl, or allyl methacrylate, methyl alpha - chloroacrylate, acrylic and methacrylic acids, acrylamide and methacrylamide, vinyl ketone, methyl isopropenyl ketone, methyl vinyl ether, methyl ethynyl carbinol, diethyl fumarate, diallyl maleate, vinylidene and vinyl chlorides, vinyl acetate, vinyl pyridine and isobutylene. The modifier containing between 4 and 16 carbon atoms may be ethylxanthogenyl ...

PROCESS FOR THE MANUFACTURE OF SPECK-FREE DISPERSIONS OF COPOLYMERS

... 1339074 Emulsion copolymerization CHEMISCHE WERKE HULS AG 19 April 1971 [2 April 1970] 25826/71 Heading C3P Emulsion co-polymerization of at least one plasticizing component and at least one component which imparts hardness is effected in the presence, as sole emulsifier, of 0À3-4À0 wt. per cent (relative to monomer mixture) of a mono- or di-salt of an -sulpho-C 10-20 fatty acid, or a salt of an ester of such an acid with a C 1-3 alcohol. The monomer mixtures suitably comprise (i) styrene or a derivative thereof, or a mixture of a styrene with up to 40% of acrylonitrile, and (ii) a conjugated diene or a C 4-8 alkyl ester of (meth)acrylic acid. Up to 5% of other monomers may also be present, particularly acrylic acid and/or acrylamide. In examples the following copolymers are made: styrene / butadiene / acrylic acid, styrene / butadiene, styrene / 2 - ethylhexyl acrylate / acrylic acid, styrene / acrylonitrile / butadiene acrylic acid, and styrene/butadiene/acrylamide/ acrylic acid. The ...

An improved manufacture of hydrocarbon copolymers

A conjugated diolefin such as butadiene, isoprene, piperylene or dimethyl butadiene is copolymerized in aqueous emulsion with acrylonitrile or an alpha alkyl acrylonitrile, the overall proportion of the nitrile being less than 25 per cent, and 10-75 per cent of the nitrile being present in the initial reaction mixture, the remainder being added in increments during the polymerization. Methacrylonitrile is specified as an alkyl derivative. In the aqueous emulsion there may be alkali metal or ammonium oleate, palmitate, stearate or soaps from selectively hydrogenated tallow acids, sodium lauryl sulphate, salts of alkylated naphthalene and benzene sulphonic acids, dodecyl amine hydrochloride or acetate, catalysts such as hydrogen peroxide, alkali metal or ammonium perborates or persulphates and modifiers such as lauryl mercaptan. The mercaptans may be added portionwise. The copolymer may be vulcanized by heating with coal tar, wood rosin, ozokerite wax, carbon, zinc oxide, benzothiazyl disulphide ...

POLYMERIZATION OF CONJUGATED DIENES

... 1292916 Alkali metal hydrocarbyl diene polymerization catalyst FIRESTONE TIRE & RUBBER CO 19 Aug 1970 [29 Aug 1969] 40019/70 Heading C3P Conjugated dienes are polymerized in the presence of (a) a potassium alkyl or aryl, (b) a potassium hydrocarbyl oxide and, optionally, (c) a potassium halide. In examples, butadiene, isoprene, chloroprene, piperylene, 2 - phenyl- 1,3-butadiene, butadiene-styrene, -vinyl toluene, -isoprene or -n-butene-1, and isoprenehexene-1 are polymerized in the presence of (a) butyl-, amyl, pentyl-, 2,5-dimethyl-hexyl-, hexyl-, cumyl-, 2-phenethyl-, naphthyl-, phenyl-, or methylnaphthyl-potassium and (b) potassium - t - butoxide, -t - amyloxide, -cumyl oxide, or -2 - oxy - 2,5 - dimethyl hexane, and in companion tests potassium n- and s-butyloxides.

HIGH POLYMER LOW VISCOSITY LATEXES

... 1282406 Emulsion polymerization NIPPON OIL CO Ltd 6 April 1971 8869/71 Heading C3P Conjugated dienes are polymerized, or copolymerized with a vinyl compound, by emulsion polymerization in the presence of (a) a fatty acid soap and/or a rosin soap, (b) a water-soluble alginate, and (c) a water-soluble magnesium salt. Examples describe the polymerization of butadiene, a 75/25 butadiene/styrene mixture and a 70/30 butadiene/n-butyl acrylate mixture in the presence of sodium rosinate, disporportionated sodium rosinate or sodium oleate as emulsifier; sodium or ammonium alginate; magnesium sulphate, chloride or nitrate; potassium persulphate; and n-dodecyl mercaptan. During the polymerization the temperature is increased in stages and further additions of potassium oleate and a "booster" mixture of modifier, initiator and emulsifier are made.

POLYIMINOALANES, PREPARATION OF THE SAME, CATALYSTS CONTAINING THE POLYIMINOALANES, AND POLYMERISATION EMPLOYING THESE CATALYSTS

... 1285164 Polymerisation catalysts SNAM PROGETTI SpA 19 April 1971 [22 Jan 1970] 20413/71 Heading B1E [Also in Division C3] A catalytic system suitable for use in the stereospecific polymerisation of conjugated dienes comprises a polyimine of aluminium having the repeating unit where R is an alkyl, cycloalkyl or aryl radical, n is an integer and some of X are halogen atoms, the remainder being hydrogen atoms, in association with a compound of a Group IV to VIII transition metal such as TiCl 4 , TiI 4 , TiBr 4 , VCl 3 , ZrCl 4 , chloride of Co, Mn or Ni and cobalt acetylacetonate. In the polymerisation process the catalytic system may be preformed either by reacting the aluminium iminic polymer with the transition metal compound or it may be formed in situ by reacting the two catalytic components in the presence of the polymerisable monomer. In a particular example isoprene is polymerised to the 1, 4 cis polymer using a catalyst consisting of partially chlorinated polyiminoalane and TiCl 4 ...

DIALKOXYXANTHOGEN DISULPHIDES

... 1369349 Xanthate disulphides BAYER AG 13 Nov 1972 [13 Nov 1971] 52211/72 Heading C2C [Also in Division C3] Novel disulphides of formula where the Rs are the same or different and represent R 1 O(CH 2 ) n O(CH 2 ) n1 -, R 1 OR 2 -, (R 1 OCH 2 ) 2 CH- or R 3 O(CH 2 ) m -, R 1 is C 1-10 alkyl, R 2 is C 3-10 alkylene, R 3 is C 3-10 alkyl, n and n1 are 2, 3 or 4 and m is 1 or 2, are prepared by reacting ROH with CS 2 in the presence of a strong base and oxidizing the resulting xanthate. The products are used as molecular weight regulators in the polymerization of conjugated diolefins.

Improvements in the Manufacture of Synthetic Caoutchouc and the like.

... 24,790. Matthews, F. E., and Strange, E. H. Oct. 25. Caoutchouc-like substances are produced by polymerizing divinyl, isoprene, their homologues and derivatives, by means of an alkali or alkaline-earth metal, or alloy or mixture, or amalgam thereof. The reaction takes place more quickly in hot than in cold weather.

PROCESS FOR THE PREPARATION OF POLYMERS WITH A BROADENED MOLECULAR WEIGHT DISTRIBUTION FROM LIVING HOMO POLYMERS OR COPOLYMERS OF CONJUGATED DIENES

PROCESS FOR PREPARING A POLYMER OF A CONJUGATED DIENE BY SOLUTION POLYMERIZATION USING A HYDROCARBYLITHIUM AS WELL AS A TRIHYDRO

... 1411579 Mixed organometallic compounds in diene polymerization SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 22 Dec 1972 [21 Jan 1972] 59303/72 Heading C3P Conjugated dienes are polymerized using a mixture of a lithium hydrocarbon and a trihydrocarbyl boron compound in a liquid solvent for the catalyst components and for the resulting polymer, the catalyst components suitably being in part in the form of a complex with a conjugated diene or alkenyl aromatic hydrocarbon, and the following concentration criteria being obeyed, where Li(f) and B(f) are the final concentrations of the lithium and boron in gramatom/litre, the former concentration reduced by the quantity of lithium compound necessary to complex with all the initial contaminants in the monomer feed, and Li(c) is the quantity of lithium compound added to compensate for at least part of the lithium compound deactivated during polymerization. The concentration criteria are: Li(f)-Li(c) is between 10-5 and 10-1 g. at/1., B ...

Improvements in or relating to polymerization

Polymerizable ethylenic monomers are polymerized in aqueous emulsion using as emulsifier a polybasic acid derivative of a hydrocarbon containing at least 20 carbon atoms, the amount of monomer being at least equal in weight to the weight of the aqueous phase and the polymerization being continued until the total solids comprise not less than 40 per cent of the total emulsion. Specified ethylenic materials are butadiene, isoprene, 2,3-dimethyl butadiene, acrylonitrile, methyl styrene, vinyl toluene, vinyl naphthalene, vinyl pyridine, esters of acrylic and substituted acrylic acids, butadiene-styrene, butadiene-styrene-methyl methacrylate and butadiene - styrene - acrylonitrile. Specified emulsifiers are dimerized linoleic acid, the dimers or trimers of octadecatrienoic acids, and hexadecatrienoic acid and their hydrogenation products. The emulsifiers are preferably used as salts, e.g. the potassium salts, and preferably in an amount between 0.3 to 5 parts. Catalysts such as the persulphates ...

ANIONIC POLYMERISATION OF CONJUGATED DIENES

Improvements in the manufacture and production of rubber

... 313,188. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Feb. 9, 1928. Caoutchouc, synthetic.-Polymerization products of diolefines, which are plastic or elastic, or both, are obtained by carrying out the polymerization in the presence of latex and similar vegetable saps, and oxidizing or emulsifying agents. Suitable oxidizing agents include oxygen and gases containing it, hydrogen peroxide, inorganic and organic peroxides, ammonium or sodium salts of perbenzoic acid, persulphates, perborates, or perchlorates of sodium or ammonium, and manganese dioxide; suitable emulsifiers comprise soaps, saponified products obtained by the oxidation of paraffin wax. sulphite-cellulose waste liquor, sulphonated mineral oils, organic sulphonic acids, which are preferably alkylated, and salts thereof, particularly the sodium salts, e.g. toluene sulphonic acid, isopropylnaphthalene sulphonic acid, or butylnaphthalene sulphonic acid. Crude or pretreated caoutchouc latex may be added, and particularly inspissated ...

CARBOXYLATED LATEX

New catalytic compositions for butadiene polymerization and processes using said compositions

... 1,131,257. Polymerization catalysts for butadiene. SNAM S.p.A. 4 Nov., 1965 [3 Feb., 1965], No. 46885/65. Heading C3P. A polymerization catalyst comprises (a) a transition metal compound of a metal of Group IV to VIII of the Periodic System, (b) a linear aluminium polymeric compound containing repeating units of the formula where R is an aryl, alkyl, or cycloalkyl hydrocarbon radical, and (c) if component (a) is free from cobalt, iodine is present therein or is introduced in the form of aluminium iodide whilst if cobalt is present any aluminium halide can be present. Compound (b) may be made by reacting LiAlH 4 with the hydrochloride of a primary amine or by reacting a primary amine with an aluminium hydride. Compound (a) may be TiCl 3 , TiCl 4 , TiI 4 , VCl 3 , VCl 4 , TiI 2 Cl 2 , NiCl 2 , VOCl 3 , CoCl 2 , or cobalt acetylacetonate. The (c) compound may be AlI 3 , AlCl 3 , or AlBr 3 . In the examples the R in the (b) polymer is ethyl, n-butyl, and phenyl. The catalyst is used to polymerize ...

Production of 1,3-diene polymers

... 1,155,555. Polymerizing dienes. BADISCHE ANILIN- & SODA-FABRIK A.G. 26 Oct., 1966 [27 Oct., 1965], No. 48016/66. Heading C3P. Diene polymers are made by polymerizing at least one 1,3-diene in the presence of a catalyst comprising (a) nickel tetracarbonyl, (b) a titanium halide, and (c) an organoaluminium compound and/or a complex-forming substance for aluminium halides. The reaction is effected in bulk, or in not more than 50% by weight of solvent, based on whole reaction mixture. The complex-forming substance may be selected from ammonia, amines, heterocyclic compounds containing N, S, or O, in the ring, organic sulphur compounds, ethers, metal alcoholates, phosphorous compounds, polycyclic aromatic compounds, and salts of alkali and alkaline earth metals. The organoaluminium compounds mentioned are triethyl and triisobutyl aluminium, diethyl aluminium hydride, phenyl aluminium sesquichloride, diethyl aluminium chloride, and ethyl aluminium dichloride. The preferred diene is butadiene, ...

Method for the Preparation of Bifunctional Organo-Metallic Compounds containing a Radical derived from a Polymerisable Monomer

... 1,159,575. Bifunctional organoaluminium compounds containing a polymer radical. VSESOJUZNY NAUCHNO - ISSLEDOVATELSKY INSTITUT SINTETICHESKOGO KAUCHUKA IMENI AKADEMIKA S.V. LEBEDEVA. 4 Nov., 1966, No. 49458/66. Heading C2J. Bifunctional organometallic compounds containing a radical derived from a polymerizable monomer are prepared by reacting an alkali metal with a diolefin or a styrene-type monomer in the presence of an alkyl or alkyl halide derivative of a Group II or III metal. The medium may be a saturated or aromatic hydrocarbon and the temperature 30‹ to 100‹ C. The molar ratios may be 1:1 for alkali metal and the alkyl derivative and 1:1 or 2:1 for alkali metal and alkyl halide derivative. In the latter case, the resulting compounds may contain only a Group II or Group III metal, or may be complex compounds and contain an alkali metal too, depending on the molar ratio of the alkali metals and alkyl metal halides. If the alkyl derivative is used instead of the alkyl halide derivative ...

Polymerization Process

... 1,197,382. Continuous polymerization. FIRESTONE TIRE & RUBBER CO. 17 July, 1968 [25 July, 1967], No. 34132/68. Heading C3P. 1,3-Butadiene is continuously solution polymerized in the presence of a lithium hydrocarbon catalyst and a modifier of 1,2-butadiene wherein after polymerization an amount of solvent and modifier is removed by vaporization, condensed and recycled to the polymerization reactor. The solvent may be pentane or hexane and the catalyst butyl lithium. The 1,3-butadiene may be copolymerized with isoprene and/or styrene.

Improvements in or relating to plastic, elastic rubber-like substances

Copolymers are made by treating a mixture of dodecyl and citronellyl methacrylates with a peroxide catalyst at a temperature between room temperature and 90 DEG C. The copolymer may be compounded with zinc oxide, stearic acid, sulphur and tetramethylthiuram disulphide and vulcanized at 155 DEG C. Citronellyl methacrylate is prepared by heating a mixture of methyl methacrylate and citronellyl alcohol at 100 DEG C. until no more methyl alcohol is evolved. The Specification as open to inspection under Sect. 91 describes also the preparation of interpolymers of isobutylene and a polyene, e.g. butadiene, isoprene, piperylene, dimethyl butadiene 2-methyl hexadiene-1,5 or myrcene at low temperatures using a Friedel-Crafts catalyst and their vulcanization. It comprises also the subject-matter of Specification 578,365. The hydrogenation of polybutadiene and interpolymers of styrene and butadiene is also referred to. This subject-matter is not contained in the Specification as accepted.ALSO:The Specification ...

Functional polymers prepared with sulfur-containing initiators

A sulfur-containing anionic polymerization initiator defined by the formula: R 1 S—R 2  a R 3⊖ Li ⊕ where R 1 is a monovalent organic group, R 2 is a divalent organic group, R 3 is a divalent organic group or a bond, and a is an integer from 1 to about 5.

Method for producing modified conjugated diene based (co)polymer, modified conjugated diene based (co)polymer, and rubber composition

The method for producing a modified conjugated diene based (co)polymer, according to the present invention comprises a step of reacting a conjugated diene based (co)polymer with a metal halide compound to obtain a modified conjugated diene based (co)polymer, the conjugated diene based (co)polymer having a weight-average molecular weight of 150,000 to 2,000,000 and being obtained by bonding, to a polymer having at least a conjugated diene unit, an alkoxysilyl group and an optionally protected primary amino group. The method can satisfactorily produce a conjugated diene based (co)polymer which has a high Mooney viscosity, excellent shape stability and good processability.

Branched polymers and methods for their synthesis and use

Branched polymers including multi-branched polymers, functionalized branched polymers, star-branched polymers, and dendigraft polymers. Methods for the synthesis of branched polymers and method for the use of branched polymers in tire components are also included.

Catalytic Systems Made of a Complex of Rare Earths For Stereospecific Polymerisation Of Conjugated Dienes

La present invention relates to a multi-component catalytic system that can be used for the cis-1,4 stereospecific polymerization of conjugated dienes. The system is based on: (i) a rare-earth complex of Formula (II) Ln(A) 3 (B) n , Ln being a rare-earth metal, A a ligand, B a Lewis base or a solvent molecule and n a number from 0 to 3; (ii) an alkylating agent; (iii) a compound based on an aromatic ring and having at least two heteroatoms chosen from the elements O, N, S, P, and corresponding to the Formula (III): in which the R groups each denote hydrogen, an alkyl radical optionally comprising one or more heteroatoms (N, O, P, S, Si) or one or more halogen atoms, a halogen atom, a group based on one or more heteroatoms (N, O, P, S, Si); x and y are integers from 0 to 6; D is a group having a chemical function, one of the atoms of which has a non-bonding pair; L being an atom from column 1 of the Periodic Table.

Graft polymer to which combined nitrogen molecules are grafted

The present invention relates to a modified polymer obtained by grafting of a compound comprising at least one group Q and at least one group A, bonded together by at least, and preferably, one “spacer” group Sp in which: Q comprises a dipole containing at least, and preferably, one nitrogen atom, capable of being grafted onto the polymer chain by [1,3]-dipolar cycloaddition, A comprises an associative group comprising at least one nitrogen atom, Sp is an atom or a group of atoms forming a bond between Q and A.

Method and Formulation For Reinforcing Elastomers

A rubber composition has a base rubber, a filler which is a protein, including soy protein, derived from byproducts resulting from the manufacture of biodiesel fuel and a coupling agent. 1. A rubber composition comprising:(a) a base rubber, said base rubber being a member selected from the group consisting of natural rubber, styrene butadiene rubber (SBR), nitrile butadiene rubber (NBR), polybutadiene, ethylene-propylenediene monomer rubber (EPDM), styrene isoprene butadiene rubber (SIBR), isoprene butadiene rubber (IBR) and combinations thereof;(b) soy protein; and(c) a coupling agent.2. A rubber composition according to further including carbon black.3. A rubber composition according to wherein said coupling agent is a silane.4. A rubber composition according to wherein said saline coupling agent is a member selected from the group consisting of bis(3-triethoxysilylpropyl) tetrasulfide (TESPT) claim 1 , mercaptopropyltrimethoxysilane claim 1 , bis(3-triethoxysilylpropyl)disulfide (TESPD) and combinations thereof.5. A rubber composition according to wherein the amount of soy protein is in the range of 1% to 50% by weight.6. A rubber composition according to wherein the amount of soy protein is in the range of 1% to 30% by weight.7. A rubber composition according to wherein the amount of soy protein is in the range of 1% to 10% by weight.8. A rubber composition according to wherein said coupling agent is in the range of 4% to 12% by weight of said soy protein.9. A tire having at least one rubber component wherein said component is comprised of the composition of .10. A tire having a rubber composition comprising:(a) a non-functionalized base rubber, said base rubber being a non-functionalized member selected from the group consisting of natural rubber, styrene butadiene rubber (SBR), nitrile butadiene rubber (NBR), polybutadiene, ethylene-propylenediene monomer rubber (EPDM), styrene isoprene butadiene rubber (SIBR), isoprene butadiene rubber (IBR) and combinations ...

Rubber composition and runflat tire

The present invention is directed to a rubber composition comprising: a functionalized elastomer comprising a polymeric backbone chain derived from a monomer comprising at least one conjugated diene monomer and optionally at least one vinyl aromatic monomer; and a functional group bonded to the backbone chain, the functional group comprising a multidentate ligand capable of complexing with a metal ion; and an encapsulated metal salt. The invention is further directed to a pneumatic runflat tire comprising a sidewall insert, the insert comprising the rubber composition.

FUNCTIONALIZED POLYMER, RUBBER COMPOSITION AND PNEUMATIC TIRE

The present invention is directed to a functionalized elastomer comprising the reaction product of a living anionic elastomeric polymer and a polymerization terminator of formula I 2. The functionalized elastomer of claim 1 , wherein R claim 1 , Rand Rare each C1 to C8 alkoxy.3. The functionalized elastomer of claim 1 , wherein the living anionic elastomer is derived from at least one diene monomer and optionally at least one vinyl aromatic monomer.4. The functionalized elastomer of claim 1 , wherein the living anionic elastomer is derived from at least one of isoprene and butadiene claim 1 , and optionally from styrene.5. The functionalized elastomer of claim 1 , wherein the living anionic elastomer is derived from butadiene and styrene.6. The functionalized elastomer of claim 1 , wherein the polymerization terminator of formula I is propaneamide claim 1 , N claim 1 ,N-dimethyl-3-[[3-(triethoxysilyl)propyl]thio]-.7. The functionalized elastomer of claim 1 , wherein the polymerization terminator of formula I is 2 claim 1 ,5-pyrrolidinedione claim 1 , 1-methyl-3-[[3-(triethoxysilyl)propyl]thio]-.10. A rubber composition comprising the functionalized elastomer of .11. The rubber composition of claim 10 , further comprising silica.12. A pneumatic tire comprising the rubber composition of . In recent years, there is a growing demand for functionalized polymers. Functionalized polymers can be synthesized through various living/controlled polymerization techniques. In the living polymerization process based on active carbanionic center, metals from Groups I and II of the periodic table are commonly used to initiate the polymerization of monomers into polymers. For example, lithium, barium, magnesium, sodium, and potassium are metals that are frequently utilized in such polymerizations. Initiator systems of this type are of commercial importance because they can be used to produce stereo regulated polymers. For instance, lithium initiators can be utilized to initiate the ...

Synthesized Resins and Varnishes and Prepegs and Laminates Made Therefrom

Synthesized base resin compositions that include a raw resin and a maleimide and/or bismaleimide monomer as well as compounded varnishes that include a raw resin or synthesized base resin as well as a monomer, flame retardant and initiator as well as prepregs and laminates made using the synthesized base resin and compounded varnishes. 1. A method of preparing a synthesized base resin by the steps of:admixing in the presence of a solvent, from about 1 to about 99 t% of at least one unsaturated polyolefin polymer and from about 1 to about 50 wt % of at least one monomer of a mono maleimide, a bismaleimide and combinations thereof;adding an initiator to the admixture to form a reactive mixture;heating the reactive mixture to a temperature of from about 90 to about 105° C. and allowing the reactive mixture to react for a period of time sufficient for the reactive mixture to reach a viscosity of from about 300-1000 cP measured at 25° C.; andadding an inhibitor to the reactive mixture to stop the reaction.2. The method of wherein the solvent includes dimethylformamide in an amount ranging from greater that 0 to about 50% of the weight the base co-polymer admixture.3. The method of wherein the solvent includes dimethlyformamide and toluene.4. The method of wherein the unsaturated polyolefin polymer has a molecular weight of from about 1000 to about 5000.5. The method of wherein the at least one monomer of a mono maleimide claim 1 , a bismaleimide and combinations thereof is a mono maleimide monomer.6. The method of wherein the synthesized base resin includes from about 30 to about 70 wt % of an unsaturated polyolefin polymer and from about 5 to about 35 wt % of the at least one mono maleimide monomer.7. The method of wherein the admixture further includes a reactive monomer.8. The method of wherein the reactive monomer is at least one styrenic monomer.9. The method of wherein the reactive monomer is a soluble halogenated monomer.10. The method of wherein the soluble ...

Polybutadiene grafted isoprene rubber, processes for preparing polybutadiene grafted isoprene rubber, mixed compositions and vulcanized forms thereof

Disclosed herein are polybutadiene grafted isoprene rubber, processes for preparing polybutadiene grafted isoprene rubber, mixed compositions and vulcanized forms thereof.

Rubber Composition for Tires, and Pneumatic Tire Using Same

Provided is a rubber composition for a tire, comprising: diene rubber contained in a quantity of 100 parts by mass; silica contained in a quantity of 60 to 200 parts by mass; polysiloxanes represented by the average composition formula of Formula (1): (A)(B)(C)(D)(R)SiOcontained in a quantity from 1 to 20 mass % relative to the quantity of silica; and a thiuram disulfide vulcanization accelerator contained in a quantity from 0.05 to 3.0 parts by mass. 2. The rubber composition for a tire according to claim 1 , further comprising from 0.1 to 3.0 parts by mass of guanidine vulcanization accelerator per 100 parts by mass of the diene rubber claim 1 , the amount of the thiuram disulfide vulcanization accelerator being from 0.05 to 2.0 parts by mass per 100 parts by mass of the diene rubber.3. The rubber composition for a tire according to claim 1 , further comprising a terpene resin.4. The rubber composition for a tire according to claim 3 , wherein the amount of the terpene resin is from 1 to 30 parts by mass per 100 parts by mass of the diene rubber claim 3 , and the terpene resin is an aromatic modified terpene resin having a softening point from 60 to 150° C.5. The rubber composition for a tire according to claim 1 , wherein b in Formula (1) is greater than 0.6. A pneumatic tire having tire treads formed using the rubber composition for a tire described in .7. The rubber composition for a tire according to claim 2 , further comprising a terpene resin.8. The rubber composition for a tire according to claim 7 , wherein the amount of the terpene resin is from 1 to 30 parts by mass per 100 parts by mass of the diene rubber claim 7 , and the terpene resin is an aromatic modified terpene resin having a softening point from 60 to 150° C.9. The rubber composition for a tire according to claim 2 , wherein b in Formula (1) is greater than 0. The present technology relates to a rubber composition for a tire and a pneumatic tire using the same.Conventionally, in tires used in ...

Azasilane-based modifier, and method for preparing modified and conjugated diene-based polymer using the same

The present invention provides an azasilane-based modifier of Formula 1, which may easily introduce a functional group having affinity with a filler into a conjugated diene-based polymer chain, a modified and conjugated diene-based polymer including the functional group derived from the azasilane-based modifier, a method for preparing the modified and conjugated diene-based polymer, a rubber composition including the modified and conjugated diene-based polymer, and a molded article and a tire manufactured from the rubber composition.

Modified Conjugated Diene-Based Polymer and Rubber Composition Including the Same

A modified conjugated diene-based polymer and a rubber composition including the same are disclosed herein. In some embodiments, a modified conjugated diene-based polymer includes a 1,2-vinyl bond content of 30.0 wt % or less with respect to a total weight of the modified conjugated diene-based polymer, wherein the polymer has a glass transition temperature of −90° C. to −50° C., a mooney viscosity of 50 to 100 measured by ASTM D1646, polydispersity index (PDI) of 1.5 to 3.5, and a mooney relaxation ratio of 0.7 or less when measured at 110° C.

Modified conjugated diene-based polymer, preparation method therefor, and rubber composition containing same

Disclosed are a modified conjugated diene-based polymer represented by specific Chemical Formula, a method of preparing the same, and a rubber composition including the same.

Method of production of modified conjugated diene rubber

A method of production of modified conjugated diene rubber includes causing an aromatic compound having three or more carbon atoms directly bonded to an aromatic ring in one molecule to react with an alkali metal atom so as to obtain an alkali metal-reacted aromatic compound; polymerizing a monomer at least containing a conjugated diene compound by using the alkali metal-reacted aromatic compound so as to obtain a conjugated diene rubber having an active end; causing the active end of the conjugated diene rubber having an active end to react with an activity control agent so as to obtain a conjugated diene rubber reacted with an activity control agent; and causing the active end of the conjugated diene rubber reacted with an activity control agent to react with a modifier having an alkoxy group and a halogen atom-containing group so as to obtain a modified conjugated diene rubber.

PROCESS FOR CONTINUOUS SYNTHESIS OF A DIENE ELASTOMER

A process for the continuous synthesis of diene elastomers with a high degree of conversion is provided. The process includes simultaneously: 1. An installation for performing a process for continuous synthesis of a diene elastomer , comprising a polymerisation reactor containing a gas phase and equipped with at least one stirring rotor and a discharge device , said reactor being at least equipped with:several inlets connected, respectively, to several feed sources including at least one source feeding said reactor with catalytic system or polymerisation initiator, a source feeding said reactor with at least one monomer and a source feeding said reactor with inert hydrocarbon-based solvent,an outlet which removes from said reactor, continuously, said elastomer paste as an exiting stream connected via said discharge device to a device which chops said discharged elastomer paste,two stirring rotors including twin sigma or z-shaped arms stirring said reaction medium, anda discharge device including at least one emptying screw.2. The installation according to claim 1 , wherein said reactor includes a tank claim 1 , each of said sigma or z-shaped arms is supported on both of two opposite sides of said tank claim 1 , and said arms are each driven about a rotary axle that is horizontal.3. The installation according to claim 1 , wherein said arms are imbricated and driven in rotation with fixed speed ratios.4. The installation according to claim 1 , wherein said arms are tangential and are driven in rotation independently of each other.5. The installation according to claim 1 , wherein said arms are driven counter-rotatively.6. The installation according to claim 1 , wherein said process for continuous synthesis of said diene elastomer has a residence time distribution function in said polymerisation reactor having a standard deviation that is greater than said mean residence time divided by 2√3 claim 1 , and wherein said installation provides a degree of conversion of at ...

METHOD OF PREPARING RUBBER COMPOSITION INCLUDING SYNDIOTACTIC 1,2-POLYBUTADIENE

Provided is a method of preparing a rubber composition, which includes (a) reacting a conjugated diene-based monomer with one or more of compounds in the presence of a first catalyst; (b) adding a conjugated diene-based monomer to a product of the step (a) and inducing a reaction; and (c) adding a second catalyst and a conjugated diene-based monomer to a product of the step (b) and inducing a reaction. 1. A method of preparing a rubber composition , comprising:(a) reacting a conjugated diene-based monomer with one or more of compounds represented by the following Chemical Formulas 1 and 2 in the presence of a first catalyst;(b) adding a conjugated diene-based monomer to a product of the step (a) and inducing a reaction; and [{'br': None, 'sub': 1', 'm', '1', 'n', '2', '2', 'o, '(R)—Z\ue8a0C≡C\ue8a0Z—(R)\u2003\u2003'}, {'br': None, 'sub': 1', 'm', '1', '1', 'n', '2', '2', '2', 'o, '(R)—Z-A\ue8a0C≡C\ue8a0A-Z—(R)\u2003\u2003'}], '(c) adding a second catalyst and a conjugated diene-based monomer to a product of the step (b) and inducing a reaction{'sub': 1', '2, 'wherein Rand Reach are a C1 to C20 alkyl, aryl, or alkoxy group, —NR′R″, —SiR′R″R″′, or hydrogen, wherein R′, R″, and R′″ each are a C1 to C20 alkyl, aryl, or alkoxy group, or hydrogen,'}m and o each are an integer of 0 to 3,{'sub': 1', '2, 'Zand Zeach are silicon, tin, nitrogen, oxygen, sulfur, phosphorus, carbon, or hydrogen,'}{'sub': 1', '2, 'Aand Aeach are a C1 to C20 alkylene or arylene group, and'}n is an integer of 1 to 20.2. The method of claim 1 , wherein the first catalyst is a neodymium-based catalyst prepared from a monomeric neodymium salt compound.3. The method of claim 2 , wherein the monomeric neodymium salt compound is one or more selected from the group consisting of neodymium hexanoate claim 2 , neodymium heptanoate claim 2 , neodymium octanoate claim 2 , neodymium octoate claim 2 , neodymium naphthenate claim 2 , neodymium stearate claim 2 , neodymium ...

CATALYST COMPOSITION FOR PREPARING CONJUGATED DIENE-BASED POLYMER AND CONJUGATED DIENE-BASED POLYMER PREPARING USING THE SAME

The present invention provides a catalyst composition including a functionalizing agent of the following Formula 1 together with a rare earth metal compound, an alkylating agent, and a halogen compound, having good catalytic activity and polymerization reactivity and useful for the preparation of a conjugated diene-based polymer having high linearity and excellent processability, and a conjugated diene-based polymer prepared using the catalyst composition. 1. A catalyst composition for preparing a conjugated diene-based polymer , the composition comprising:a functionalizing agent of the following Formula 1;a rare earth metal compound;an alkylating agent; and {'br': None, 'sub': 1', 'a', '2', '3-a, '(X)—N—(X)\u2003\u2003[Formula 1]'}, 'a halogen compoundin Formula 1,a is an integer of 1 or 2,{'sub': 1', '2', '1-20', 'a', 'b', 'c', 'd', '1', '2', '1', '2', 'a', 'b', 'c', 'd', '1-20', '3-20', '6-20', '7-20', '7-20', '1-20', '3-20', '6-20', '7-20', '7-20, 'Xand Xare each independently selected from the group consisting of a hydrogen atom, monovalent Chydrocarbon, —OR, —SiRRRand a covalent bonding functional group, or adjacent two functional groups in Xand Xare connected to form a heterocyclic compound, where at least one of Xand Xincludes the covalent bonding functional group, where R, R, R, and Rare each independently selected from the group consisting of a hydrogen atom, Calkyl, Ccycloalkyl, Caryl, Calkylaryl, Carylalkyl, and —NR′R″, where R′ and R″ are each independently selected from the group consisting of a hydrogen atom, Calkyl, Ccycloalkyl, Caryl, Calkylaryl, Carylalkyl, and a covalent bonding functional group, and'}the covalent bonding functional group is a functional group containing a carbon-carbon double bond.2. The catalyst composition for preparing a conjugated diene-based polymer of claim 1 , wherein the covalent bonding functional group is selected from the group consisting of Calkenyl and (meth)acryl.3. The catalyst composition for preparing a ...

NOVEL NEODYMIUM COMPOUND AND CATALYST FOR DIENE POLYMERIZATION INCLUDING THE SAME

The present invention relates to a neodymium compound represented by Formula 1 and a catalyst for diene polymerization including the same. 111-. (canceled)12. A catalyst for diene polymerization , comprising:{'sub': 3', '3', '3', '3', '3, 'a neodymium compound selected from the group consisting of: Nd(2,2-diethyl decanoate), Nd(2,2-dipropyl decanoate), Nd(2,2-dibutyl decanoate), Nd(2,2-dihexyl decanoate), and Nd(2,2-dioctyl decanoate).'}13. The catalyst for diene polymerization of claim 12 , further comprising:a halogen compound; andan organometal compound.14. The catalyst for diene polymerization of claim 13 , wherein the halogen compound is selected from the group consisting of an aluminum halogen compound claim 13 , an inorganic halogen compound obtained by substituting aluminum in the aluminum halogen compound with the element selected from the group consisting of boron claim 13 , silicon claim 13 , tin and titanium claim 13 , and an organic halogen compound.15. The catalyst for diene polymerization of claim 14 , wherein the organic halogen compound is a t-alkyl halogen compound.16. The catalyst for diene polymerization of claim 13 , wherein the organometal compound is at least one selected from the group consisting of an alkyl aluminum compound claim 13 , an alkyl magnesium compound and an alkyl lithium compound.17. The catalyst for diene polymerization of claim 16 , wherein the organometal compound is at least one selected from the group consisting of trimethyl aluminum claim 16 , triethyl aluminum claim 16 , tripropyl aluminum claim 16 , tributyl aluminum claim 16 , triisobutyl aluminum claim 16 , trihexyl aluminum claim 16 , diisobutyl aluminum hydride claim 16 , dibutyl magnesium claim 16 , diethyl magnesium and n-butyl lithium.18. The catalyst for diene polymerization of claim 13 , wherein a mixing ratio (molar ratio) of neodymium compound:halogen compound:organometal compound is 1.0:1.0 to 20:5.0 to 200. This is a Divisional of application Ser. No. 14/462 ...

CURABLE LIQUID DEVELOPER

Provided is a curable liquid developer having sufficient fixability while being a curable liquid developer containing a polymer material. The curable liquid developer includes: a cationic polymerizable liquid monomer including a vinyl ether monomer; and toner particles insoluble in the cationic polymerizable liquid monomer, in which the curable liquid developer further includes a polymerizable polyolefin including a polyolefin in a main chain thereof, the polymerizable polyolefin having a vinyl ether group at at least one terminal of the polyolefin. 1. A curable liquid developer , comprising:a cationic polymerizable liquid monomer including a vinyl ether monomer; andtoner particles insoluble in the cationic polymerizable liquid monomer, whereinthe curable liquid developer further comprises a polymerizable polyolefin comprising a polyolefin in a main chain thereof, at least one terminal of the polyolefin having a vinyl ether group.2. A curable liquid developer according to claim 1 , wherein the polymerizable polyolefin has vinyl ether groups at a plurality of terminals of the polyolefin.3. A curable liquid developer according to claim 1 , wherein the polymerizable polyolefin has a weight-average molecular weight of 900 to 10 claim 1 ,000.4. A curable liquid developer according to claim 3 , wherein the polymerizable polyolefin has a weight-average molecular weight of 1 claim 3 ,000 to 10 claim 3 ,000.5. A curable liquid developer according to claim 1 , wherein the polymerizable polyolefin has a structure derived from one of 1 claim 1 ,2-polybutadiene and 1 claim 1 ,4-polyisoprene claim 1 , and has hydrogen added to a double bond moiety except the vinyl ether group.67-. (canceled)8. A curable liquid developer according to claim 2 , wherein the polymerizable polyolefin has a weight-average molecular weight of 900 to 10 claim 2 ,000.9. A curable liquid developer according to claim 2 , wherein the polymerizable polyolefin has a weight-average molecular weight of 1 claim 2 ...

Modified conjugated diene polymer, method for producing modified conjugated diene polymer, polymer composition, crosslinked polymer, and tire

A modified conjugated diene-based polymer is produced by reacting a conjugated diene-based polymer having an alkali metal or an alkali-earth metal at a terminal of the polymer with a compound represented by formula (1). R 1 and R 2 independently represent a hydrocarbyl group having 20 or fewer carbon atoms. R 3 represents a substituted alkyl group having 20 or fewer carbon atoms prepared through substitution of at least one of a hydrogen atom and —CH 2 — of an alkyl group by a group containing only at least one heteroatom selected from the group consisting of nitrogen, phosphorus, oxygen, and sulfur, or a monovalent aromatic group having 20 or fewer carbon atoms and containing at least one element selected from the group consisting of nitrogen, phosphorus, oxygen, and sulfur, with the proviso that R 3 does not have active hydrogen. R 4 represents an alkanediyl group having 20 or fewer carbon atoms. n is 1 or 2

METHOD OF MAKING A FUNCTIONALIZED ELASTOMER

The present invention is directed to a method of making a functionalized elastomer, comprising the step of polymerizing monomers comprising a conjugated diene monomer in the presence of a lanthanide-based coordination polymerization catalyst activated with a magnesium compound of formula 1 3. The method of claim 1 , wherein the lanthanide-based catalyst is selected from neodymium borohydride complexes and neodymium carboxylates.4. The method of claim 1 , wherein the lanthanide-based catalyst comprises Nd(BH).(THF).5. The method of claim 1 , wherein the conjugated diene monomer is selected from the group consisting of 1 claim 1 ,3-butadiene claim 1 , isoprene claim 1 , 2 claim 1 ,3-dimethyl-1 claim 1 ,3-butadiene claim 1 , piperylene claim 1 , 3-butyl-1 claim 1 ,3-octadiene claim 1 , and 2-phenyl-1 claim 1 ,3-butadiene.7. The method of claim 1 , further comprising the step of terminating the polymerization with a functional terminator substituted with a functional group comprising at least one heteroatom selected from phosphorus claim 1 , boron claim 1 , oxygen claim 1 , halogens and silicon.8. The method of wherein the functional terminator comprises at least one functional group selected from the group consisting of phosphane claim 7 , phosphonic acid claim 7 , phosphate claim 7 , phosphodiester claim 7 , phosphotriester claim 7 , silyl claim 7 , alklysilyl claim 7 , alkoxysilyl claim 7 , and siloxy.9. The method of claim 7 , wherein the functional terminator comprises a terminator selected from the group consisting of tetraethoxysilane claim 7 , n-octyltriethoxysilane claim 7 , 3-chloropropyltriethoxysilane claim 7 , and chlorodiphenylphosphine.10. The method of claim 1 , wherein the nitrogen containing heterocyclic group is selected from the group consisting of the structures To produce stereoregular polymers, catalytic insertion polymerization is the method of choice. Resulting stereoregular poly(1-olefins) and poly(dienes) are of enormous practical importance. ...

POLYMERS FUNCTIONALIZED WITH N-PROTECTED HYDANTOIN COMPOUNDS

A method for preparing a functionalized polymer, the method comprising the steps of (i) polymerizing monomer to form a reactive polymer; and (ii) reacting the reactive polymer with an N-protected hydantoin compound 1. A method for preparing a functionalized polymer , the method comprising the steps of:(i) polymerizing monomer to form a reactive polymer; and(ii) reacting the reactive polymer with an N-protected hydantoin compound.6. The method of claim 1 , where the N-protected hydantoin compound is selected from 1 claim 1 ,3-dihydrocarbylhydantoins claim 1 , 1-hydrocarbyl-3-silylhydantoins claim 1 , 1-silyl-3-hydrocarbylhydantoins claim 1 , and 1 claim 1 ,3-disilylhydantoins.7. The method of claim 6 , where the N-protected hydantoin compound is a 1 claim 6 ,3-dihydrocarbylhydantoin selected from 1 claim 6 ,3-dimethylhydantoin claim 6 , 1 claim 6 ,3-dimethyl-5-methylhydantoin claim 6 , 1 claim 6 ,3-dimethyl-5-ethylhydantoin claim 6 , 1 claim 6 ,3-dimethyl-5-phenylhydantoin claim 6 , 1 claim 6 ,3-dimethyl-5 claim 6 ,5-dimethylhydantoin claim 6 , 1 claim 6 ,3-dimethyl-5 claim 6 ,5-diethylhydantoin claim 6 , 1 claim 6 ,3-dimethyl-5 claim 6 ,5-diphenylhydantoin claim 6 , 1 claim 6 ,3-dimethyl-5-ethyl-5-phenylhydantoin claim 6 , 1 claim 6 ,3-dimethyl-5-methyl-5-phenylhydantoin claim 6 , 1 claim 6 ,3-dimethyl-5 claim 6 ,5-diphenylhydantoin claim 6 , 1 claim 6 ,3-diethylhydantoin claim 6 , 1 claim 6 ,3-diethyl-5-methylhydantoin claim 6 , 1 claim 6 ,3-diethyl-5-ethylhydantoin claim 6 , 1 claim 6 ,3-diethyl-5-phenylhydantoin claim 6 , 1 claim 6 ,3-diethyl-5 claim 6 ,5-dimethylhydantoin claim 6 , 1 claim 6 ,3-diethyl-5 claim 6 ,5-diethylhydantoin claim 6 , 1 claim 6 ,3-diethyl-5 claim 6 ,5-diphenylhydantoin claim 6 , 1 claim 6 ,3-diethyl-5-ethyl-5-phenylhydantoin claim 6 , 1 claim 6 ,3-diethyl-5-methyl-5-phenylhydantoin claim 6 , 1 claim 6 ,3-diethyl-5 claim 6 ,5-diphenylhydantoin claim 6 , 1 claim 6 ,3-diisopropylhydantoin claim 6 , 1 claim 6 ,3-diisopropyl-5-methylhydantoin ...

METHOD FOR PREPARING DISPERSION OF METAL-CONTAINING PARTICLES AND METHOD FOR PRODUCING HYDROGENATED CONJUGATED DIENE POLYMER

A method for producing a dispersion of metal-containing particles includes contacting a metal-supported material obtained by supporting a metal and/or a metal compound on a carrier with a polymeric protective agent showing affinity for the metal and/or the metal compound in a solvent to obtain a dispersion of metal-containing particles in which the metal and/or the metal compound is dispersed in the solvent in the form of particles. 1. A method for producing a dispersion of metal-containing particles , comprising contacting a metal-supported material obtained by supporting a metal and/or a metal compound on a carrier with a polymeric protective agent showing affinity for the metal and/or the metal compound in a solvent to obtain a dispersion of metal-containing particles in which the metal and/or the metal compound is dispersed in the solvent in the form of particles.2. The method for producing a dispersion of metal-containing particles according to claim 1 , wherein the metal-supported material is obtained by supporting a platinum group element and/or a platinum group element-containing compound as the metal and/or the metal compound on a carrier.3. The method for producing a dispersion of metal-containing particles according to claim 1 , wherein the polymeric protective agent is a polymer of a vinyl compound having a polar group on a side chain.4. The method for producing a dispersion of metal-containing particles according to claim 3 , wherein the polymeric protective agent is polyvinylpyrrolidone.5. The method for producing a dispersion of metal-containing particles according to claim 1 , wherein a ratio of the metal-supported material to the polymeric protective agent is 0.1 to 1 claim 1 ,000 in terms of a weight ratio of “the polymeric protective agent/a sum of the metal and the metal compound in the metal-supported material”.6. A method for producing a hydrogenated claim 1 , conjugated diene-based polymer claim 1 , comprising hydrogenating a conjugated diene- ...

"Conjugated Diene Polymer and Modified Conjugated Diene Polymer Produced Using the Same, Rubber Composition for Tire, And Rubber Composition for Rubber Belt"

A conjugated diene polymer having a high content of cis-1,4-structures with a high activity, a conjugated diene polymer and a modified conjugated diene polymer using the same, a rubber composition for a tire, and a rubber composition for a rubber belt. Described are a catalyst for a conjugated diene polymerization including: a non-metallocene type gadolinium compound (A) represented by the general formula (1); an ionic compound (B) formed of a non-coordinating anion and a cation; and an organic metal compound (C) of an element selected from the group consisting of a group 2, a group 12, and a group 13 of the periodic table, a conjugated diene polymer and a modified conjugated diene polymer obtained using the same, a rubber composition for a tire, and a rubber composition for a rubber belt.

RUBBER COMPOSITIONS INCLUDING SILICEOUS FILLERS

Vulcanizates with desirable properties can be obtained from compositions incorporating polymers that include hydroxyl group-containing aryl functionalities, silica or other particulate filler(s) that contain or include oxides of silicon and a group or compound that can act to covalently bond the filler particles and the polymer. The group can be provided as a substituent of the filler particle, or a discreet compound can be provided in the composition. 1. A process for making a filled rubber composition , said process comprising blending (i) ethylenic unsaturation and', '(ii) pendent or terminal functionality which comprises an aryl group having at least two substituents defined by the formula —OR, wherein R is H or a hydrolyzable group, or an oxidation product thereof; and, '(1) a polymer that comprises'}{'sup': 1', '1', '2', '2', '2, '(2) filler particles that comprise oxides of silicon and bound residues of one or more compounds having the general formula YRL where L is a group that contains at least one Si—O bond, Ris a hydrocarbylene group, and Y is a functionality that comprises a —OH, —SH, —NHR, —CN, —C(O)Ror —NCO group in which Ris H or a substituted or unsubstituted hydrocarbyl group.'}2. The process of wherein said functionality is at a terminus of said polymer.4. The process of wherein the aryl group of said functionality is a phenyl group.5. The process of wherein said filler particles comprise at least one species of silica.6. The process of wherein Y is a functionality that comprises a —SH group.7. The process of wherein said filled rubber composition further comprises at least one sulfide-containing silane coupling agent.8. The process of wherein the aryl group of said functionality is a phenyl group.9. The process of wherein said filler particles comprise at least one species of kaolin clay.10. The process of wherein Y is a functionality that comprises a —SH group.11. The process of wherein said filler particles comprise at least one species having a ...

Functionalized polymer, rubber composition and pneumatic tire

The present invention is directed to a functionalized elastomer comprising the reaction product of a living anionic elastomeric polymer and a polymerization terminator of formula (1) where the substituent structures are further defined.

Method for producing polydienes and polydiene copolymers with reduced cold flow

A method for preparing a coupled polymer, the method comprising the steps of: (i) polymerizing monomer to form a reactive polymer, and (ii) reacting the reactive polymer with coumarin or a substituted coumarin compound.

BIS-IMINE PYRIDINE COMPLEX OF LANTHANIDES CATALYTIC SYSTEM COMPRISING SAID BIS-IMINE PYRIDINE COMPLEX AND PROCESS FOR THE (CO)POLYMERIZATION OF CONJUGATED DIENES

A bis-imine pyridine complex of lanthanides having general formula (I): Said bis-imine pyridine complex of lanthanides having general formula (I) can be advantageously used in a catalytic system for the (co)polymerization of conjugated dienes. 2. The bis-imine pyridine complex of lanthanides having general formula (I) according to claim 1 , wherein Ln represents neodymium (Nd) claim 1 , lanthanum (La) claim 1 , praseodymium (Pr) claim 1 , gadolinium (Gd) claim 1 , europium (Eu) claim 1 , terbium (Tb) claim 1 , samarium (Sm) claim 1 , erbium (Er) claim 1 , or ytterbium (Yb).3. The bis-imine pyridine complex of lanthanides having general formula (I) according to claim 1 , wherein:Ln is neodymium (Nd), praseodymium (Pr), gadolinium (Gd), or lanthanum (La);{'sub': 1', '2', '1', '20, 'Rand R, the same as each other, are a hydrogen atom; or they are selected from linear or branched C-Calkyl groups; or they are selected from cycloalkyl groups optionally substituted;'}{'sub': 3', '4, 'Rand R, equal to or different from each other, are selected from phenyl groups, optionally substituted; or they are selected from cycloalkyl groups optionally substituted;'}{'sub': 1', '2', '3, 'X, Xand X, the same as each other, are a halogen atom.'}4. A catalytic system for the (co)polymerization of conjugated dienes comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, '(a) at least one bis-imine pyridine complex of lanthanides having general formula (I) according to ;'} {'br': None, 'sub': n', '6', '3-n, 'Al(X′)(R)\u2003\u2003(II)'}, '(b1) aluminium alkyls having general formula (II), '(b) at least one co-catalyst selected from{'sub': 6', '1', '20', '3', '20, 'claim-text': {'br': None, 'sub': 7', '2', '8', 'p', '9', '2, '(R)—Al—O—[—Al(R)—O—]—Al—(R)\u2003\u2003(III)'}, '(b2) aluminium oxanes having general formula (III), 'wherein X′ represents a halogen atom; Ris selected from linear or branched C-Calkyl groups, C-Ccycloalkyl groups, aryl groups, said groups being optionally ...

Method for Producing Modified Conjugated Diene-Based Polymer, Modified Conjugated Diene-Based Polymer, Modified Conjugated Diene-Based Polymer Composition, Rubber Composition and Tire

A method for producing a modified conjugated diene-based polymer including a polymerization step of obtaining a conjugated diene-based polymer having an active end by use of a polymerization initiator containing a compound having at least one nitrogen atom in a molecule and an organic lithium compound; and a modification step of reacting a modifier represented by the following chemical formula (6) with the active end of the conjugated diene-based polymer: wherein R 4 to R 7 each independently represent an alkyl group having 1 to 20 carbon atoms or an aryl group having 6 to 20 carbon atoms; R 8 represents an alkylene group having 3 to 10 carbon atoms; R 9 represents an alkylene group having 1 to 20 carbon atoms; m is an integer of 1 or 2; and n is an integer of 2 or 3.

Process for producing epoxidized polymers

A process for forming an epoxidized rubber including dissolving a rubber in a solvent and epoxidizing the rubber in the presence of an epoxidation reagent. The solvent is selected such that the rubber is soluble therein but the epoxidized rubber precipitates.

Catalyst Composition For Preparing Conjugated Diene-based Polymer And Conjugated Diene-based Polymer Preparing Using The Same

The present invention provides a catalyst composition including a functionalizing agent of the following Formula 1 together with a rare earth metal compound, an alkylating agent, and a halogen compound, having good catalytic activity and polymerization reactivity and useful for the preparation of a conjugated diene-based polymer having high linearity and excellent processability, and a conjugated diene-based polymer prepared using the catalyst composition. 2. The conjugated diene-based polymer of claim 1 , wherein the conjugated diene-based polymer has a mooney viscosity of 10 MU to 90 MU at 100° C. and a polydispersity of 3.4 or less.3. A rubber composition comprising the conjugated diene-based polymer according to .4. A tire part manufactured by using the rubber composition according to . This application is a divisional of U.S. application Ser. No. 15/554,907, filed Aug. 31, 2017 which is a national phase entry under 35 U.S.C. § 371 of International Application No. PCT/KR2016/006802, filed on Jun. 24, 2016, which claims priority from Korean Patent Application Nos. 2015-0089906, filed on Jun. 24, 2015, and 2015-0184238, filed on Dec. 22, 2015, the entire contents of which are incorporated herein by reference.The present invention relates to a catalyst composition for preparing a conjugated diene-based polymer and a conjugated diene-based polymer prepared using the same.According to the gradual increase in demand for a rubber composition in various manufacturing fields for tires, impact resistant polystyrene, the sole of shoes, golf balls, etc., the value of conjugated diene-based polymer which is a synthetic rubber, specifically, a butadiene-based polymer is increasing as an alternative material to natural rubber of which the produced amount is insufficient.Meanwhile, in a conjugated diene-based polymer, linearity and the degree of branching greatly affect the physical properties of the polymer. In particular, with a decrease in linearity or an increase in the ...

Vinyl Modifier Composition And Processes For Utilizing Such Composition

An oxolanyl compound-containing composition comprising specified amounts of the meso-isomer of one or more of the oxolanyl compounds of specified structure is provided. Also provided are methods for the use of such compositions as vinyl content modifiers in polymerization processes. 125-. (canceled)26. A vinyl content modifier composition comprising 2 ,2-di(2-tetrahydrofuryl)propane , wherein at least 60% by weight of the 2 ,2-di(2-tetrahydrofuryl)propane is meso-isomer.27. The vinyl content modifier composition of claim 26 , wherein at least 65% by weight of the 2 claim 26 ,2-di(2-tetrahydrofuryl)propane is meso-isomer.28. The vinyl content modifier composition of claim 26 , wherein at least 75% by weight of the 2 claim 26 ,2-di(2-tetrahydrofuryl)propane is meso-isomer.29. The vinyl content modifier composition of claim 26 , wherein at least 99% by weight of the 2 claim 26 ,2-di(2-tetrahydrofuryl)propane is meso-isomer.30. The vinyl content modifier composition of claim 26 , wherein 65-99% by weight of the 2 claim 26 ,2-di(2-tetrahydrofuryl)propane is meso-isomer.31. The vinyl content modifier composition of claim 26 , wherein 65-87% by weight of the 2 claim 26 ,2-di(2-tetrahydrofuryl)propane is meso-isomer.32. The vinyl content modifier composition of claim 26 , wherein at least about 65 to about 75% by weight of the 2 claim 26 ,2-di(2-tetrahydrofuryl)propane is meso-isomer.33. The vinyl content modifier composition of claim 26 , wherein about 65 to about 87% by weight of the 2 claim 26 ,2-di(2-tetrahydrofuryl)propane is meso-isomer.35. The vinyl content modifier composition of claim 34 , wherein at least 65% by weight of the 2 claim 34 ,2-di(2-tetrahydrofuryl)propane is meso-isomer.36. The vinyl content modifier composition of claim 34 , wherein at least 75% by weight of the 2 claim 34 ,2-di(2-tetrahydrofuryl)propane is meso-isomer.37. The vinyl content modifier composition of claim 34 , wherein at least 99% by weight of the 2 claim 34 ,2-di(2-tetrahydrofuryl) ...

METHOD FOR PRODUCING CONJUGATED DIENE POLYMER

The present invention is a method for producing a conjugated diene random copolymer comprising polymerizing at least a conjugated diene monomer using a living radical polymerization method to produce a conjugated diene polymer that comprises a halogen atom at a terminal of a polymer chain, a living radical polymerization reaction being initiated using a copper salt, a multidentate ligand that comprises a nitrogen atom having an sphybridized orbital as a coordinating atom, and an organic halide, to produce the conjugated diene polymer having a number average molecular weight (Mn) of 1,000 to 1,000,000 and a molecular weight distribution (Mw/Mn) of less than 2.0. The present invention provides a method for efficiently and inexpensively producing a conjugated diene polymer that includes a halogen atom at the terminal of the polymer chain, and has the desired molecular weight and a narrow molecular weight distribution. 1. A method for producing a conjugated diene random copolymer comprising polymerizing a conjugated diene monomer and α ,β-ethylenically unsaturated monomer copolymerizable with the conjugated diene monomer using a living radical polymerization method to produce a conjugated diene random copolymer that comprises a halogen atom at a terminal of a polymer chain , a living radical polymerization reaction being initiated using a copper salt , a multidentate ligand that comprises a nitrogen atom having an sphybridized orbital as a coordinating atom , and an organic halide , to produce the conjugated diene random copolymer having a number average molecular weight (Mn) of 1 ,000 to 1 ,000 ,000 and a molecular weight distribution (Mw/Mn) of less than 2.0.2. The method for producing a conjugated diene random copolymer according to claim 1 , wherein the number of coordinating atoms included in the multidentate ligand is 2 to 4.3. The method for producing a conjugated diene random copolymer according to claim 1 , wherein the multidentate ligand comprises two or more ...

ETHYLENE-PROPYLENE-DIENE RUBBER FOAMED MATERIAL, PRODUCING METHOD THEREOF, AND SEALING MATERIAL

An ethylene-propylene-diene rubber foamed material is obtained by foaming a rubber composition containing an ethylene-propylene-diene rubber. The ethylene-propylene-diene rubber foamed material has a 50% compressive load value of 0.1 to 2.0 N/cmand the content ratio of a sulfur atom calculated based on the measurement result of a fluorescent X-ray measurement, based on mass, is 1000 ppm or less. 1. An ethylene-propylene-diene rubber foamed material obtained by foaming a rubber composition containing an ethylene-propylene-diene rubber , wherein{'sup': '2', 'the ethylene-propylene-diene rubber foamed material has a 50% compressive load value of 0.1 to 2.0 N/cmand'}the content ratio of a sulfur atom calculated based on the measurement result of a fluorescent X-ray measurement, based on mass, is 1000 ppm or less.2. The ethylene-propylene-diene rubber foamed material according to claim 1 , wherein{'sub': '8', 'the content ratio of sulfur Scalculated based on the measurement result of a gel permeation chromatography, based on mass, is 10 ppm or less.'}3. The ethylene-propylene-diene rubber foamed material according to claim 1 , wherein{'sup': '3', 'the ethylene-propylene-diene rubber foamed material has an apparent density of 0.50 g/cmor less.'}4. The ethylene-propylene-diene rubber foamed material according to claim 1 , whereinthe rubber composition further contains a quinoid compound andthe quinoid compound is a derivative of p-quinonedioxime.5. The ethylene-propylene-diene rubber foamed material according to claim 1 , whereinthe rubber composition fails to contain a vulcanizing retardant containing a sulfur atom.6. The ethylene-propylene-diene rubber foamed material according to claim 1 , whereinin the rubber composition, an ethylene-propylene-diene rubber has long chain branching.7. The ethylene-propylene-diene rubber foamed material according to claim 1 , whereinthe rubber composition further contains a cross-linking auxiliary andthe cross-linking auxiliary contains ...

SOUND INSULATING MATERIAL AND SEALING MATERIAL

A sound insulating material is obtained by foaming a rubber composition containing an ethylene-propylene-diene rubber. The content ratio of a sulfur atom calculated by a fluorescent X-ray measurement, based on mass, is 1000 ppm or less. The sound insulating material has a 50% compressive load value of 0.1 N/cmor more and 10 N/cmor less. The sound insulating material has an air permeability of 10 cm/min/cmor less. 1. A sound insulating material obtained by foaming a rubber composition containing an ethylene-propylene-diene rubber , whereinthe content ratio of a sulfur atom calculated by a fluorescent X-ray measurement, based on mass, is 1000 ppm or less,{'sup': 2', '2, 'the sound insulating material has a 50% compressive load value of 0.1 N/cmor more and 10 N/cmor less, and'}{'sup': 3', '2, 'the sound insulating material has an air permeability of 10 cm/min/cmor less.'}2. The sound insulating material according to claim 1 , wherein{'sub': '8', 'the content ratio of sulfur Scalculated based on the measurement result of a gel permeation chromatography, based on mass, is 100 ppm or less.'}3. The sound insulating material according to claim 1 , whereinthe sound insulating material has a water absorption of 200 mass % or less.4. The sound insulating material according to claim 1 , wherein{'sup': '3', 'the sound insulating material has an apparent density of 0.20 g/cmor less.'}5. The sound insulating material according to claim 1 , whereinthe rubber composition further contains a quinoid compound andthe quinoid compound is a derivative of p-quinonedioxime.6. The sound insulating material according to claim 1 , whereinthe rubber composition further contains a cross-linking auxiliary andthe cross-linking auxiliary contains a polyol.7. The sound insulating material according to claim 6 , whereinthe polyol is a polyethylene glycol.8. The sound insulating material according to claim 1 , whereinthe rubber composition further contains an organic peroxide.9. The sound insulating ...

Organosilica materials and uses thereof

Methods of preparing organosilica materials, which are a polymer comprising of at least one independent cyclic polyurea monomer of Formula wherein each R 1 is a Z 1 OZ 2 Z 3 SiZ 4 group, wherein each Z 1 represents a hydrogen atom, a C 1 -C 4 alkyl group, or a bond to a silicon atom of another monomer unit; each Z 2 and Z 3 independently represent a hydroxyl group, a C 1 -C 4 alkyl group, a C 1 -C 4 alkoxy group or an oxygen atom bonded to a silicon atom of another monomer unit; and each Z 4 represents a C 1 -C 8 alkylene group bonded to a nitrogen atom of the cyclic polyurea are provided herein. Methods of preparing and processes of using the organosilica materials, e.g., for gas separation, color removal, etc., are also provided herein.

MODIFIED AND CONJUGATED DIENE-BASED POLYMER AND METHOD FOR PREPARING THEREOF

The present invention provides a compound represented by Formula 1, a modified and conjugated diene-based polymer with a high modification ratio, which includes a functional group derived from the compound, a method for preparing the polymer, a rubber composition including the polymer, and a tire manufactured from the rubber composition. 2. The compound of claim 1 , wherein in Formula 1 claim 1 ,{'sup': 1', '11', '12', '11', '12, 'sub': 'x', 'Ris selected from the group consisting of an alkyl group of 1 to 20 carbon atoms, a cycloalkyl group of 3 to 20 carbon atoms, an aryl group of 6 to 20 carbon atoms, an arylalkyl group of 7 to 20 carbon atoms, an alkoxy group of 1 to 20 carbon atoms, an alkoxyalkyl group of 2 to 20 carbon atoms, a phenoxyalkyl group of 7 to 20 carbon atoms, an aminoalkyl group of 1 to 20 carbon atoms, and —[RO]R(where Ris an alkylene group of 2 to 10 carbon atoms, Ris selected from the group consisting of a hydrogen atom, an alkyl group of 1 to 10 carbon atoms, a cycloalkyl group of 3 to 12 carbon atoms, an aryl group of 6 to 18 carbon atoms, and an arylalkyl group of 7 to 18 carbon atoms, and x is an integer of 2 to 10).'}3. The compound of claim 1 , wherein in Formula 1 claim 1 ,{'sup': 1', '11', '12', '11', '12, 'sub': 'x', 'Ris selected from the group consisting of an alkyl group of 1 to 10 carbon atoms, a cycloalkyl group of 3 to 12 carbon atoms, an aryl group of 6 to 12 carbon atoms, an arylalkyl group of 7 to 12 carbon atoms, an alkoxyalkyl group of 2 to 10 carbon atoms, a phenoxyalkyl group of 7 to 12 carbon atoms, an aminoalkyl group of 1 to 10 carbon atoms, and —[RO]R(where Ris an alkylene group of 2 to 10 carbon atoms, Ris selected from the group consisting of a hydrogen atom, an alkyl group of 1 to 10 carbon atoms, a cycloalkyl group of 3 to 12 carbon atoms, an aryl group of 6 to 18 carbon atoms, and an arylalkyl group of 7 to 18 carbon atoms, and x is an integer of 2 to 10),'}{'sup': '2', 'Ris an alkylene group of 1 to 6 carbon ...

CURABLE COMPOSITION, PREPREG, METAL FOIL WITH COMPOSITION, METAL-CLAD LAMINATE AND WIRING BOARD

A curable composition includes a radically polymerizable compound having a carbon-carbon unsaturated double bond in a molecule, and an insoluble phosphorus compound insoluble in the radically polymerizable compound. The insoluble phosphorus compound includes a phosphine oxide compound having two or more diphenylphosphine oxide groups in a molecule. 1. A curable composition comprising:a radically polymerizable compound having a carbon-carbon unsaturated double bond in a molecule; andan insoluble phosphorus compound insoluble in the radically polymerizable compound,the insoluble phosphorus compound including a phosphine oxide compound that has two or more diphenylphosphine oxide groups in a molecule.2. The curable composition according to claim 1 , wherein the phosphine oxide compound has a melting point of 280° C. or more.3. The curable composition according to claim 1 ,wherein the phosphine oxide compound has, in the molecule, a linking group that links the two or more diphenylphosphine oxide groups, andthe linking group includes at least one selected from the group consisting of a phenylene group, a xylylene group, a biphenylene group, a naphthylene group, a methylene group, and an ethylene group.5. The curable composition according to claim 1 , further comprising a soluble phosphorus compound soluble in the radically polymerizable compound.6. The curable composition according to claim 5 , wherein a content proportion by mass of the insoluble phosphorus compound to a total of the insoluble phosphorus compound and the soluble phosphorus compound ranges from 20% to 80% claim 5 , inclusive.7. The curable composition according to claim 5 , wherein the soluble phosphorus compound is at least one selected from the group consisting of a phosphoric acid ester compound claim 5 , a phosphazene compound claim 5 , a phosphorous acid ester compound claim 5 , and a phosphine compound.8. The curable composition according to claim 1 , wherein a content of a phosphorus atom ranges ...

Modification Initiator And Modified Conjugated Diene-based Polymer Including The Same

The present invention relates to a modification initiator and a modified conjugated diene-based polymer including the same, and more particularly, the present invention provides a modification initiator including a compound represented by Formula 1, a modified conjugated diene-based polymer including the same, and a method of preparing a modified conjugated diene-based polymer. 2. The method of claim 1 , wherein the compound represented by Formula 1 is used in an amount of 0.01 mmol to 10 mmol based on total 100 g of the monomer.3. The method of claim 1 , further comprising a step (S2) of reacting the active polymer prepared in the step (S1) with a modifier.5. The method of claim 3 , wherein a molar ratio of the compound represented by Formula 1 to the modifier is in a range of 1:0.1 to 1:10.6. The method of claim 1 , wherein the polymerization of the step (S1) is performed by including a polar additive.7. The method of claim 6 , wherein the polar additive comprises at least one selected from the group consisting of tetrahydrofuran claim 6 , ditetrahydrofurylpropane claim 6 , diethylether claim 6 , cycloamylether claim 6 , dipropyl ether claim 6 , ethylene dimethyl ether claim 6 , diethyl glycol claim 6 , dimethyl ether claim 6 , tertiary butoxyethoxyethane claim 6 , bis(3-dimethylaminoethyl)ether claim 6 , (dimethylaminoethyl)ethylether claim 6 , trimethylamine claim 6 , triethylamine claim 6 , tripropylamine claim 6 , and tetramethylethylenediamine.8. The method of claim 1 , whereinin Formula 1,{'sup': 1', '2', '15', '2', '15', '1', '2', '1', '15, 'Yand Yare each independently M or R, wherein Yis Rwhen Yis M, and Yis M when Yis R,'}M is an alkali metal,{'sup': 1', '2', '3', '15, 'R, R, R, and Rare each independently hydrogen; an alkyl group having 1 to 30 carbon atoms; an alkenyl group having 2 to 30 carbon atoms; and an alkynyl group having 2 to 30 carbon atoms,'}{'sup': '4', 'Ris a single bond; or an unsubstituted alkylene group having 1 to 20 carbon atoms,'}{' ...

Conjugated diene based polymer, and polymer composition containing the polymer

The present invention related to a conjugated diene based polymer comprising a monomer unit derived from a noncyclic conjugated diene and a monomer unit derived from an alicyclic hydrocarbon compound having a non-conjugated carbon-carbon double bond.

SUPPORTED HYBRID CATALYST AND METHOD FOR PREPARING OLEFIN POLYMER USING THE SAME

The present invention relates to a supported hybrid catalyst and a method for preparing olefin polymer using the same. Using the supported hybrid catalyst, olefin polymer that maintains excellent mechanical strength of olefin polymer polymerized with the existing metallocene catalyst, but exhibits remarkably improved processibility compared to the existing olefin polymer, can be provided. 2. The supported hybrid catalyst according to claim 1 , wherein Rto Rare each independently claim 1 , hydrogen claim 1 , a C1-20 alkyl group claim 1 , a C1-20 alkoxy group claim 1 , or a C2-20 alkenyl group.3. The supported hybrid catalyst according to claim 1 , wherein Rand Rare each independently claim 1 , hydrogen claim 1 , a C1-20 alkyl group claim 1 , a C1-20 alkoxy group claim 1 , or a C2-20 alkenyl group.4. The supported hybrid catalyst according to claim 1 , wherein Rto Rare each independently claim 1 , hydrogen claim 1 , a C1-20 alkyl group claim 1 , a C1-20 alkoxy group claim 1 , or a C2-20 alkenyl group claim 1 , or one or more neighboring pairs of Rto Rare connected to each other to form a substituted or unsubstituted aliphatic ring.5. The supported hybrid catalyst according to claim 1 , wherein Qand Qare each independently claim 1 , a C1-20 alkyl group claim 1 , or a C6-20 aryl group.6. The supported hybrid catalyst according to claim 1 , wherein Xto Xare each independently claim 1 , halogen claim 1 , a C1-20 alkyl group claim 1 , or a C1-20 alkoxyl group.7. The supported hybrid catalyst according to claim 1 , wherein Tis an ethylene group claim 1 , an n-propylene group claim 1 , an iso-propylene group claim 1 , an ethylidene group claim 1 , a 1-propylidene group claim 1 , 2-propylidene group claim 1 , or T(Q)(Q); Tis Si; and Qand Qare identical to or different from each other claim 1 , and each independently claim 1 , a C1-20 alkyl group claim 1 , a C1-20 alkoxy group claim 1 , or a C2-20 alkoxyalkyl group.8. The supported hybrid catalyst according to claim 1 , ...

CURABLE PETROLEUM RESIN, PREPARATION METHOD THEREFOR, AND USE THEREOF

The present invention relates to a curable petroleum resin, a preparation method therefor, and use thereof, wherein the curable petroleum resin comprises a repeating unit derived from a petroleum resin monomer, a repeating unit derived from a silane monomer and a repeating unit derived from a cyclic anhydride monomer, and wherein the curable petroleum resin is used as an additive for a reactive polyolefin-based adhesive composition to increase the adhesive strength to a polyolefin-based substrate used for various parts. 1. A curable petroleum resin comprising:a repeating unit (A) derived from a petroleum resin monomer;a repeating unit (B) derived from a silane monomer anda repeating unit (C) derived from a cyclic anhydride monomer.2. The curable petroleum resin of claim 1 , wherein the cyclic anhydride monomer comprises one selected from the group consisting of maleic anhydride claim 1 , itaconic anhydride claim 1 , citraconic anhydride claim 1 , propenyl succinic anhydride claim 1 , 2-pentenedioic anhydride and combinations thereof.3. The curable petroleum resin of claim 1 , wherein the petroleum resin monomer comprises one selected from the group consisting of mixed C5 fractions claim 1 , mixed C9 fractions claim 1 , dicyclopentadiene and mixtures thereof obtained from naphtha cracking.4. The curable petroleum resin of claim 1 , wherein the silane monomer is represented by the following Chemical Formula 2:{'br': None, 'sub': 2', '1', 'x', 'n', '2n', 'y', '2', '3', '4, 'CH═CH(R)—(COO)(CH)Si(R)(R)(R)\u2003\u2003[Chemical Formula 2]'}{'sub': '1', 'wherein Ris hydrogen or a methyl group;'}{'sub': 2', '4, 'Rto Rare the same as or different from each other, and hydrogen, a C1 to C20 alkyl group, a C3 to C12 cycloalkyl group, a C1 to C12 alkoxy group, a C2 to C12 acyloxy group, a C6 to C30 aryloxy group, a C5 to C30 araloxy group or a C1 to C20 amine group;'}n is an integer of 1 to 12 andx and y are 0 or 1.5. The curable petroleum resin of claim 4 , wherein Ris hydrogen ...

Production Of Cis-1,4-Polydienes With Multiple Silane Functional Groups Prepared By In-Situ Hydrosilylation Of Polymer Cement

A method of preparing a silane-functionalized polymer, the method comprising: preparing a polymerization system including a cis-1,4-polydiene by introducing a lanthanide-based catalyst and a conjugated diene monomer; and adding a hydrosilane compound to the polymerization system including a cis-1,4-polydiene. 1. The method of claim 21 , wherein the step of combining includes:(i) preparing a polymerization system including the cis-1,4-polydiene by introducing the lanthanide-based catalyst and a conjugated diene monomer; and(ii) adding the hydrosilane compound to the polymerization system including the cis-1,4-polydiene.2. The method of claim 1 , where the lanthanide-based catalyst includes (a) a lanthanide-containing compound claim 1 , (b) an alkylating agent claim 1 , and (c) a halogen source.3. The method of claim 1 , further comprising the step of chain-end functionalizing the cis-1 claim 1 ,4-polydiene by reacting a cis-1 claim 1 ,4-polydiene having a reactive chain end with a secondary-functionalizing agent.4. The method of claim 1 , where no additional catalyst is added prior to the step of adding the hydrosilane compound to the polymerization system including a cis-1 claim 1 ,4-polydiene.5. The method of claim 1 , where the hydrosilane compound is defined by the formula I{'br': None, 'sub': x', '4-x, 'SiHR'}where x is an integer from 1 to 4, and each R is independently a halogen atom, or a monovalent organic group, or where two or more R groups may join to form a polyvalent organic group.6. The method of claim 1 , where the hydrosilane compound is defined by the formula II{'br': None, 'sub': x', '4-x, 'SiH(OR)'}where x is an integer from 1 to 4, and each R is individually a hydrocarbyl or silyl group, or where two or more R groups join to form a polyvalent organic group.9. The method of claim 1 , where the hydrosilane compound is selected from the group consisting of trihydrocarbyloxy silane claim 1 , hydrocarbyl dihydrocarbyloxy silane claim 1 , dihydrocarbyl ...

POLYMERIZATION SYSTEM HAVING A REGENERATION DEVICE FOR AN ADSORPTIVE AND/OR CATALYTIC CLEANING DEVICE, REGENERATION DEVICE, AND REGENERATION METHOD

A polymerisation system for obtaining at least one polymerisation product from at least one gaseous, hydrocarbon-rich feed stream, which system has at least one catalytic and/or adsorptive cleaning device for the at least partial extraction of at least one undesirable component in the at least one feed stream and a regeneration device for the regeneration of the cleaning device. The regeneration device is designed to at least intermittently condition and conduct a regeneration gas stream through the cleaning device by means of a partially closed gas circuit. There is further provided a corresponding regeneration method. 1. A polymerization plant for obtaining at least one polymerization product from at least one gaseous , hydrocarbon-rich feed stream , having at least one catalytic and/or adsorptive purifying unit for at least partial removal of at least one unwanted component in the at least one feed stream , and having a regenerating unit for regeneration of the purifying unit , characterized in that the regenerating unit is set up for at least temporary conditioning and guiding of a regeneration gas stream through the purifying unit by means of a partly closed gas circuit.2. The polymerization plant as claimed in claim 1 , wherein at least one heating unit claim 1 , at least one cooling unit and/or at least one compressor are arranged in the gas circuit.3. The polymerization plant as claimed in claim 1 , wherein the gas circuit has at least one feed unit and/or at least one withdrawal unit for a gas stream.4. The polymerization plant as claimed in claim 1 , wherein the purifying unit comprises a plurality of purifying vessels each filled with a purifying medium and the regenerating unit is set up for alternative or simultaneous guiding of the regeneration gas stream through at least two purifying vessels.5. The polymerization plant as claimed in claim 1 , wherein the regenerating unit is set up for operation in different operating phases in which the regeneration ...

Vinyl Modifier Composition And Processes For Utilizing Such Composition

An oxolanyl compound-containing composition comprising specified amounts of the meso-isomer of one or more of the oxolanyl compounds of specified structure is provided. Also provided are methods for the use of such compositions as vinyl content modifiers in polymerization processes.

Method for Preparing Conjugated Diene-based Copolymer, Conjugated Diene-based Copolymer Prepared Therefrom, Rubber Composition Comprising the Same

Provided is a method for preparing a conjugated diene-based copolymer, a conjugated diene-based copolymer prepared therefrom, and a rubber composition including the same. 1. A method for preparing a conjugated diene-based copolymer comprising:(S10) performing emulsion polymerization on an α-methylstyrene monomer, a conjugated diene-based monomer, and a hydroxyalkyl(meth)acrylate monomer,wherein the α-methylstyrene monomer and the conjugated diene-based monomer are added together at one time when a polymerization conversion ratio of the emulsion polymerization is 0%, and the hydroxyalkyl(meth)acrylate monomer is divisionally added two or more times when the polymerization conversion ratio of the emulsion polymerization is 0% to 80%, andthe α-methylstyrene monomer is added in an amount of 10% by weight to 50% by weight, the conjugated diene-based monomer is added in an amount of 49% by weight to 89% by weight, and the hydroxyalkyl(meth)acrylate monomer is added in an amount of 0.1% by weight to 5% by weight, based on the total monomer amount.2. The method of claim 1 , wherein the hydroxyalkyl(meth)acrylate monomer is divisionally added two to four times when the polymerization conversion ratio of the emulsion polymerization is 0% to 60%.3. The method of claim 1 , wherein an amount of the hydroxyalkyl(meth)acrylate monomer-derived repeating unit is maintained within a range of deviation ±2% by weight based on the total amount of the respective conjugated diene-based copolymers according to the polymerization conversion ratio of the emulsion polymerization.4. The method of claim 3 , wherein an amount of the hydroxyalkyl(meth)acrylate monomer-derived repeating unit is maintained within a range of 0.1% by weight to 5% by weight based on the total amount of the respective conjugated diene-based copolymers according to the polymerization conversion ratio of the emulsion polymerization.5. A conjugated diene-based copolymer comprising:10% by weight to 50% by weight of an α- ...

Hydroxyl group-containing methylstyrene and polymers incorporating same

Vulcanizates with desirable properties can be obtained from compounds incorporating polymers that include hydroxyl group-containing α-methylstyrene functionalities. The functionalities can be incorporated by using any or all of appropriate initiators, monomers and optional terminating compounds. Such polymers exhibit excellent interactivity with both conventional and non-conventional fillers.

Hydroxyaryl Functionalized Polymers

Vulcanizates with desirable properties can be obtained from compounds incorporating polymers that include hydroxyl group-containing aryl functionalities. The functionalities can be incorporated by using any or all of appropriate initiators, monomers and terminating compounds. Such polymers exhibit excellent interactivity with both conventional and non-conventional fillers. 1. A method of making a functionalized polymer that comprises polyene mer and a terminal functional group , said method comprisinga) providing a solution that comprises an initiator or a catalyst system and one or more types of ethylenically unsaturated monomers which include at least one type of polyene;b) allowing said one or more types of ethylenically unsaturated monomers to polymerize, thereby providing a terminally active polymer; (1) a functional group that is reactive toward a terminally active polymer, and', '(2) an aryl group having at least two directly bonded OR groups where each R is a hydrolyzable t-butyldimethylsiloxyl protecting group,, 'c) reacting said terminally active polymer with a functionalizing compound that comprises'}thereby providing said functionalized polymer; andd) optionally, introducing to said functionalized polymer an active hydrogen atom-containing compound, thereby hydrolyzing each of said OR groups.2. The method of wherein said initiator or catalyst is an alkali metal-containing initiating compound and wherein said terminally active polymer is carbanionic.3. The method of wherein said one or more types of ethylenically unsaturated monomers further comprises at least one type of vinyl aromatic compound.4. The method of wherein said alkali metal-containing initiating compound comprises a functional group.5. The method of wherein said alkali metal-containing initiating compound is defined by the formula RZQ-M wherein M is an alkali metal atom; Ris an aryl group that comprises at least one ORsubstituent in which each Ris a group that is non-reactive toward M and ...

Activation of catalytic systems for the stereospecific polymerization of dienes

An activated preformed catalytic system for the 1,4-cis stereospecific polymerization of conjugated dienes based on at least: one or more preformation conjugated diene monomers, one or more salts of one or more rare-earth metals of one or more acids chosen from an organic phosphoric acid and an organic carboxylic acid, and a mixture thereof, one or more alkylating agents consisting of one or more alkylaluminiums of formula AlR 3 or HAlR 2 , in which R represents an alkyl radical and H represents a hydrogen atom, one or more halogen donors consisting of an alkylaluminium halide, and one or more compounds corresponding to formula (I) below:

METHOD FOR PRODUCING NITRILE RUBBER

Disclosed is a method for producing a nitrile rubber comprising adding 0.1 to 5 parts by weight of at least one phosphate emulsifier selected from the group consisting of monoalkyl ether phosphate (MAP) represented by the following Formula 1 and dialkyl ether phosphate (DAP) represented by the following Formula 2, with respect to 100 parts by weight of monomers constituting the nitrile rubber. The method minimizes mold contamination during molding of produced nitrile rubber, eliminates the necessity of any process of removing mold contaminants, improves production efficiency and thus reduces defect rates of final molded articles. 2. The method according to claim 1 , wherein the monoalkyl ether phosphate is selected from the group consisting of the monoalkyl ether phosphate wherein R represents a C5-C20 alkyl or alkylaryl group claim 1 , and n is integer of 2 to 10.3. The method according to claim 1 , wherein the dialkyl ether phosphate is selected from the group consisting of the dialkyl ether phosphate wherein R represents a C5-C20 alkyl or alkylaryl group and n is an integer of 2 to 10.4. The method according to claim 1 , wherein the monoalkyl ether phosphate and the dialkyl ether phosphate are used in a combination at a mix weight ratio of 1:99 to 99:1.5. The method according to claim 1 , further comprising further adding an aliphatic organic acid or sulfonate emulsifier in an amount of 0.1 to 5 parts by weight with respect to 100 parts by weight of monomers constituting the nitrile rubber.6. The method according to claim 1 , wherein the aliphatic organic acid comprises at least one selected from the group consisting of oleic acid claim 1 , rosin acid claim 1 , lauric acid claim 1 , myristic acid claim 1 , palmitic acid claim 1 , stearic acid and eicosanoic acid.7. The method according to claim 1 , wherein the sulfonate emulsifier comprises at least one selected from the group consisting of sodium salts of naphthalene sulfonic acid claim 1 , alkyl aryl sulfonate ...

Methods To Prepare Catalysts For In-Line Bulk Polymerization

A method is described for the formation of an active catalyst system for use in the in-line bulk polymerization of polydienes. The method provides a homogeneous, active catalyst system which is capable of being transported to a polymerization reactor for use without causing blockages in piping, thereby saving time and production costs. The catalyst system is formed in-line in a continuous method to avoid prolonged storage periods of the catalyst that can otherwise lead to degradation and disposal of the aged catalyst system.

Method of Producing a Conjugated Diene Polymer, a Modified Conjugated Diene Polymer, and a Vinyl Cis-Polybutadiene Composition

A method for producing a conjugated diene polymer having a high content of cis-1,4-structures with a high activity, a conjugated diene polymer, and a modified conjugated diene polymer. The catalyst for conjugated diene polymerization in the method includes: a non-metallocene type gadolinium compound (A) represented by the general formula (1); an ionic compound (B) formed of a non-coordinating anion and a cation; and an organic metal compound (C) of an element selected from the group consisting of a group 2, a group 12, and a group 13 of the periodic table. 2. The method for producing a conjugated diene polymer according to claim 1 , wherein the organic metal compound (C) is an organic aluminum compound.3. The method for producing a conjugated diene polymer according to claim 1 , wherein the ionic compound (B) is a boron-containing compound.4. The method for producing a conjugated diene polymer according to claim 1 , wherein the molecular weight is adjusted with a compound selected from the group consisting of (1) a hydrogen claim 1 , (2) a metal hydride compound claim 1 , and (3) a hydrogenated organic metal compound in the polymerization of the conjugated diene compound.6. The method for producing a modified conjugated diene polymer according to claim 5 , wherein the amino group-containing carbonyl compound is a 4 claim 5 ,4′-bis-dialkylaminobenzophenone.7. The method for producing a modified conjugated diene polymer according to claim 5 , wherein the halogenated benzyl compound is a piperonyl chloride claim 5 , a dimethoxybenzyl bromide claim 5 , or a methoxybenzyl chloride.8. The method for producing a modified conjugated diene polymer according to claim 5 , wherein the aldehyde compound is a heliotropin or a veratrum aldehyde.10. The method for producing a vinyl.cis-polybutadiene according to claim 9 , wherein the organic metal compound (C) is an organic aluminum compound.11. The method for producing a vinyl.cis-polybutadiene according to claim 9 , wherein the ...

Modifier, Modified And Conjugated Diene-Based Polymer And Rubber Composition Including The Same

The present invention provides a modifier, a modified and conjugated diene-based polymer which is modified using the same, and a rubber composition including the modified and conjugated diene-based polymer, and more particularly, a modifier which includes a compound represented by Formula 1 and is capable of improving the mixing properties between a conjugated diene-based polymer and a filler, a modified and conjugated diene-based polymer which is modified using the same, and a rubber composition including the modified and conjugated diene-based polymer. 2. The modified and conjugated diene-based polymer of claim 1 , wherein the modified and conjugated diene-based polymer has molecular weight distribution of 2.0 to 3.5.3. The modified and conjugated diene-based polymer of claim 1 , wherein the modified and conjugated diene-based polymer has a mooney viscosity (MV) of 20 to 70 at 100° C.5. The method for preparing a modified and conjugated diene-based polymer of claim 4 , further comprising prior to the modification step claim 4 , a step of performing polymerization reaction of a conjugated diene-based monomer using a catalyst composition comprising a lanthanide series rare earth element-containing compound in a polymerization solvent to prepare a conjugated diene-based polymer having an activated organometal part.6. The method for preparing a modified and conjugated diene-based polymer of claim 5 , wherein the catalyst composition comprises the lanthanide series rare earth element-containing compound claim 5 , an alkylating agent and a halogen compound.8. The method for preparing a modified and conjugated diene-based polymer of claim 5 , wherein the catalyst composition further comprises a conjugated diene-based monomer.9. The method for preparing a modified and conjugated diene-based polymer of claim 4 , wherein the conjugated diene-based polymer comprising the activated organometal part is a conjugated diene-based polymer comprising a terminal activated ...

Catalyst composition for polymerizing conjugated diene monomer

There is provided a catalyst composition for polymerizing a conjugated diene monomer containing a rare earth complex having a specific structure and a specific compound.

PROCESS FOR THE PREPARATION OF (CO)POLYMERS OF CONJUGATED DIENES IN THE PRESENCE OF A CATALYTIC SYSTEM COMPRISING A VANADIUM BIS-IMINE COMPLEX

Process for the preparation of (co) polymers of conjugated dienes comprising polymerizing at least one conjugated diene in the presence of a catalytic system comprising at least one vanadium bis-imine complex having the general formula (I): wherein: m is 0 or 1; Z represents a —CRRgroup wherein Rand R, equal to or different from each other, represent a hydrogen atom; or a C-Calkyl group, preferably C-C, linear or branched; or a bivalent aromatic group optionally substituted; Rand Requal to or different from each other, represent a hydrogen atom; or they are selected from C-Calkyl groups, preferably C-C, linear or branched, optionally halogenated, cycloalkyl groups optionally substituted; or Rand R, may be optionally bound each other so as to form, together with the other atoms which they are bound to, a cycle containing from 4 to 6 carbon atoms, saturated, unsaturated, or aromatic, optionally substituted by C-Calkyl groups, preferably C-C, linear or branched, said cycle optionally containing heteroatoms such as, for example, oxygen, sulfur, nitrogen, silicon, phosphorus, selenium; Rand R, equal to or different from each other, represent a hydrogen atom; or they are selected from C-Calkyl groups, preferably C-C, linear or branched, optionally halogenated, cycloalkyl groups optionally substituted, aryl groups optionally substituted; or Rand R, may be optionally bound each other so as to form, together with the other atoms which they are bound to, a cycle containing from 3 to 6 carbon atoms, saturated, unsaturated, or aromatic, optionally substituted by C-Calkyl groups, preferably C-C, linear or branched, said cycle optionally containing other heteroatoms such as, for example, oxygen, sulfur, nitrogen, silicon, phosphorus, selenium; or Rand R, may be optionally bound each other so as to form, together with other atoms which they are bound to, a cycle containing from 3 to 6 carbon atoms, saturated, unsaturated, or aromatic, optionally substituted by C-Calkyl groups, ...

ANTIOXIDANT POLYDIHYDROPYRIDAZINE AND POLYPYRIDAZINE FOAMS FROM 1,2,4,5-TETRAZINE

Antioxidant polymer foams and uses thereof are described herein. These foams are synthesized using a Carboni-Lindsey reaction of 1,2,4,5-tetrazine with a polymer having alkenyl functional groups. The foams feature dihydropyridazine functional groups which can be oxidized to consume surrounding reactive oxidizing chemicals and are consequently antioxidant. 2. The method of claim 1 , wherein the formamidine compound is formamidine acetate.3. The method of claim 1 , wherein the hydrazine compound is hydrazine monohydrate.4. The method of claim 1 , wherein the nitrite compound is sodium nitrite claim 1 , potassium nitrite or silver nitrite.5. The method of claim 1 , wherein the acid is acetic acid.6. The method of claim 1 , wherein the method is performed at room temperature.7. The method of claim 1 , wherein the formamidine compound and the hydrazine compound react to form a solid.8. The method of claim 7 , wherein aqueous solvent is added to the reaction vessel and dissolves the solid before addition of the nitrite compound or the acid.10. The modified polymer of claim 9 , wherein a hydrogen atom at each of the 3 and 6 positions of said 1 claim 9 ,2 claim 9 ,4 claim 9 ,5-tetrazine monomers prevent crosslinking at the 3 and 6 positions.11. The modified polymer of claim 9 , wherein the polymer having alkenyl functional groups is polybutadiene claim 9 , polyisoprene claim 9 , or poly(divinylbenzene).12. The method of claim 9 , wherein at least 90% of the alkenyl functional groups react with said 1 claim 9 ,2 claim 9 ,4 claim 9 ,5-tetrazine monomers to form the dihydropyridazine groups.13. The method of claim 9 , wherein the molar ratio of the 1 claim 9 ,2 claim 9 ,4 claim 9 ,5-tetrazine monomers to the alkenyl functional groups is greater than 1:1.14. The modified polymer of claim 9 , wherein the modified polymer is in a form of a thin film claim 9 , a thermoplastic foam claim 9 , a membrane claim 9 , a powder claim 9 , or a gel.15. The modified polymer of claim 9 , ...

RUBBER COMPOSITION AND TIRE

The rubber composition comprises 5 to 30 parts by mass of a terpene resin having a softening point of 100 to 118° C. and a molecular weight of from 500 to 10,000, and 7 to 40 parts by mass of an α-methyl styrene resin having a molecular weight of from 700 to 3,000, based on 100 parts by mass of a rubber component comprising 60 to 95% by mass of an aromatic olefin rubber and 5 to 40% by mass of a diene olefin rubber, wherein a ratio of a content of the terpene resin to a content of the α-methyl styrene resin (a content of the terpene resin/a content of the α-methyl styrene resin) is from 0.2 to 5, and the tire is one having a tire member composed of the rubber composition. 1. A rubber composition comprising:5 to 30 parts by mass of a terpene resin having a softening point of 100 to 118° C. and a molecular weight of 500 to 10,000, and7 to 40 parts by mass of an α-methyl styrene resin having a molecular weight of 700 to 3,000,based on 100 parts by mass of a rubber component comprising 60 to 95% by mass of an aromatic olefin rubber and 5 to 40% by mass of a diene olefin rubber,wherein a ratio of a content of the terpene resin to a content of the α-methyl styrene resin (a content of the terpene resin/a content of the α-methyl styrene resin) is from 0.2 to 5.2. The rubber composition of claim 1 , wherein a total content of the aromatic olefin rubber and the diene olefin rubber in the rubber component is not less than 80% by mass.3. The rubber composition of claim 1 , wherein the aromatic olefin rubber is a styrene-butadiene rubber and the diene olefin rubber is a butadiene rubber.4. A tire having a tire member composed of the rubber composition of . The present invention relates to a rubber composition and a tire having a tire member composed of the rubber composition.Important performances demanded for a tire are wet grip performance and abrasion resistance. Further, recently enhancement of fuel efficiency by improving a rolling resistance of a tire is demanded from the ...

PRESSURE-SENSITIVE ADHESIVE SHEET FOR COVERING

A pressure-sensitive adhesive sheet for covering according to an embodiment of the present invention includes a non-crosslinked rubber component having a maximum peak of the molecular weight distribution in the range of 50,000 to 3,000,000, an oil component having a maximum peak of the molecular weight distribution in the range of 1,000 to 20,000, and carbon black. The content of the non-crosslinked rubber component is 25% to 65% by mass, the content of the oil component is 35% to 75% by mass, and the content of the carbon black relative to 100 parts by mass of the total of the non-crosslinked rubber component and the oil component is 1 to 40 parts by mass. 1. A pressure-sensitive adhesive sheet for covering comprising:a non-crosslinked rubber component having a maximum peak of the molecular weight distribution in the range of 50,000 to 3,000,000;an oil component having a maximum peak of the molecular weight distribution in the range of 1,000 to 20,000; andcarbon black,wherein the content of the non-crosslinked rubber component is 25% to 65% by mass,the content of the oil component is 35% to 75% by mass, andthe content of the carbon black relative to 100 parts by mass of the total of the non-crosslinked rubber component and the oil component is 1 to 40 parts by mass.2. The pressure-sensitive adhesive sheet for covering according to claim 1 , further comprising an inorganic filler other than the carbon black claim 1 ,wherein the content of the inorganic filler relative to 100 parts by mass of the total of the non-crosslinked rubber component and the oil component is more than 0 parts by mass and 200 parts by mass or less.3. The pressure-sensitive adhesive sheet for covering according to claim 2 , wherein the inorganic filler is at least one selected from the group consisting of calcium carbonate claim 2 , talc claim 2 , clay claim 2 , aluminum hydroxide claim 2 , and magnesium hydroxide.4. The pressure-sensitive adhesive sheet for covering according to claim 1 , ...

PREPARATION OF REFINED PIGMENT FROM ELASTOMER

A pigment and method for making a pigment comprising a milled elastomer, wherein the milled elastomer has a D50 particle size of between about 5 and about 50 microns. A coating of the pigment has a smoothness of about 3 or less. The pigment is prepared by providing an elastomer; and milling the elastomer in the presence of milling media and solvent at a temperature from about 30° C. to about 70° C. The elastomer is insoluble in the solvent. The method for preparing the pigment from an elastomer comprises the steps of: providing an elastomer; and milling the elastomer in a media mill in the presence of milling media and solvent at a temperature from about 30° C. to about 70° C. The diameter of the milling media is from about 0.5 mm to about 10 mm, and the elastomer is insoluble in the solvent. 1. A pigment comprising a milled elastomer , wherein the milled elastomer has a D50 particle size of between about 5 and about 50 microns and wherein a coating of the pigment has a smoothness of about 3 or less.2. The pigment of claim 1 , wherein the D50 particle size is from about 5 to about 25 microns.3. The pigment of claim 1 , wherein the elastomer is vulcanized rubber from natural rubber claim 1 , styrene-butadiene rubber claim 1 , ethylene propylene diene monomer claim 1 , or blends thereof.4. The pigment of claim 1 , wherein the tint strength of the pigment claim 1 , as measured by draw down claim 1 , has a color with an L* of about 82 or less.5. The pigment of claim 1 , wherein the film thickness at full hide of the pigment claim 1 , as measured by a spray evaluation of hiding power claim 1 , is about 0.6 Mils or less.6. The pigment of claim 1 , wherein the pigment has a viscosity less than 5000 cPS at pigment to binder level of 0.25.7. The pigment of claim 1 , wherein the adhesion measurement of a coating on an unprimed aluminum panels is 6 or higher.8. A dispersion comprising the pigment of and a resin.9. A pigment comprising a milled elastomer claim 1 , wherein the ...

Modified Conjugated Diene-Based Polymer and Method for Preparing the Same

The present invention relates to a modifier represented by Formula 1, a method for preparing the same, a modified conjugated diene-based polymer including a functional group derived from the modifier and having a high modification ratio, and a method for preparing the polymer. 2. The modifier according to claim 1 , whereinin Formula 1,{'sup': 2', '6, 'Rand Rare each independently an alkylene group of 2 to 10 carbon atoms,'}{'sup': '4', 'Ris an alkylene group of 2 to 10 carbon atoms,'}{'sup': 8', '12, 'Rand Rare each independently an alkyl group of 1 to 10 carbon atoms, which is unsubstituted or substituted with a linear or branched alkyl group of 1 to 10 carbon atoms, and'}{'sup': 9', '11, 'Rto Rare each independently any one selected from the group consisting of an alkyl group of 1 to 10 carbon atoms, a cycloalkyl group of 3 to 12 carbon atoms, an aryl group of 6 to 12 carbon atoms, an arylalkyl group of 7 to 12 carbon atoms, an alkoxyalkyl group of 2 to 10 carbon atoms, a phenoxyalkyl group of 7 to 12 carbon atoms and an aminoalkyl group of 1 to 10 carbon atoms.'}5. The method for preparing the modifier according to claim 4 , whereinin Formulae 1 and 4 to 7,{'sup': 2', '6, 'Rand Rare each independently an alkylene group of 2 to 10 carbon atoms,'}{'sup': '4', 'Ris an alkylene group of 2 to 10 carbon atoms,'}{'sup': 8', '12, 'Rand Rare each independently an alkyl group of 1 to 10 carbon atoms, which is unsubstituted or substituted with a linear or branched alkyl group of 1 to 10 carbon atoms, and'}{'sup': 9', '11, 'Rto Rare each independently any one selected from the group consisting of an alkyl group of 1 to 10 carbon atoms, a cycloalkyl group of 3 to 12 carbon atoms, an aryl group of 6 to 12 carbon atoms, an arylalkyl group of 7 to 12 carbon atoms, an alkoxyalkyl group of 2 to 10 carbon atoms, a phenoxyalkyl group of 7 to 12 carbon atoms and an aminoalkyl group of 1 to 10 carbon atoms.'}6. The method for preparing the modifier according to claim 4 , further ...

AROMATIC HYDROGENATION CATALYSTS AND USES THEREOF

Hydrogenation catalysts for aromatic hydrogenation including an organosilica material support, which is a polymer comprising independent units of a monomer of Formula [ZOZOSiCH](I), wherein each Zand Zindependently represent a hydrogen atom, a C-Calkyl group or a bond to a silicon atom of another monomer; and at least one catalyst metal are provided herein. Methods of making the hydrogenation catalysts and processes of using, e.g., aromatic hydrogenation, the hydrogenation catalyst are also provided herein. 125.-. (canceled)26. A method of making a hydrogenation catalyst for aromatic hydrogenation , the method comprising:a) providing an aqueous mixture that contains essentially no structure directing agent and/or porogen,{'sup': 15', '16', '15', '16, 'sub': 2', '3', '1', '4', '1', '4', '1', '4, '(b) adding at least one compound of Formula [ZZSiCH](VII) into the aqueous mixture to form a solution, wherein each Zrepresents a C-Calkoxy group and each Zrepresents a C-Calkoxy group or a C-Calkyl group;'}(c) aging the solution to produce a pre-product;{'sup': 1', '2', '1', '2, 'sub': 2', '3', '1', '4, '(d) drying the pre-product to obtain an organosilica material support which is a polymer comprising independent units of a monomer of Formula [ZOZOSiCH](I), wherein each Zand Zindependently represent a hydrogen atom, a C-Calkyl group or a bond to a silicon atom of another monomer, wherein the organosilica material support has an X-ray diffraction pattern with one peak between 1 and 3 degrees 2θ and no peaks in the range of from 3 to 20 degrees 2θ; and'}(e) impregnating the organosilica material support with at least one catalyst metal selected from the group consisting of a Group 8 metal, a Group 9 metal, a Group 10 metal and a combination thereof.27. The method of claim 26 , wherein each Zrepresents a C-Calkoxy group.28. The method of claim 27 , wherein each Zrepresents a C-Calkoxy group.29. The method of claim 28 , wherein each Zrepresents a C-Calkoxy group.30. The method ...

METHOD FOR PREPARING LARGE-SIZE DIENE-BASED RUBBER LATEX AND ACRYLONITRILE-BUTADIENE-STYRENE GRAFT COPOLYMER COMPRISING THE SAME

The present invention relates to a method for preparing a diene-based rubber latex having improved impact strength, gloss and flexibility, diene-based rubber latex prepared therefrom, and an acrylonitrile-butadiene-styrene graft copolymer having improved impact strength and production yield while having reduced rubber solid content ratio by comprising the same. 1. A method for preparing a diene-based rubber latex comprising:preparing a first solution by adding 50 to 75 parts by weight of a conjugated diene-based monomer, 1 part by weight to 3 parts by weight of an emulsifier, 0.1 parts by weight to 0.4 parts by weight of a polymerization initiator, 0.1 parts by weight to 3 parts by weight of an electrolyte, 0.1 parts by weight to 0.5 parts by weight of a molecular weight control agent and 65 parts by weight to 100 parts by weight of ion exchanged water, based on 100 parts by weight of the conjugated diene-based monomer, into a reactor while stirring, adding 0.05 part by weight to 0.3 part by weight of a cross-linking agent based on 100 parts by weight of the conjugated diene-based monomer, and then subjecting the first solution to a first polymerization (Step 1);performing a second polymerization by adding a balance of the conjugated diene-based monomer, 0 to 0.1 parts by weight of the emulsifier and 0 to 0.2 parts by weight of the cross-linking agent 0 to 0.2 part by weight when a polymerization conversion rate of the first polymerization is 45% to 60% (Step 2); andterminating the second polymerization when the polymerization conversion rate of the second polymerization is 90% to 95% or higher (Step 3).2. The method for preparing the diene-based rubber latex of claim 1 , wherein the conjugated diene-based monomer is composed of a single material of a conjugated diene-based monomer.3. The method for preparing the diene-based rubber latex of claim 1 , wherein the conjugated diene-based monomer is a mixture composed of:80 wt % to 99 wt % of a conjugated diene-based co ...

Hydroxyaryl Functionalized Polymers

Vulcanizates with desirable properties can be obtained from compounds incorporating polymers that include hydroxyl group-containing aryl functionalities. The functionalities can be incorporated by using any or all of appropriate initiators, monomers and optional terminating compounds. Such polymers exhibit excellent interactivity with both conventional and non-conventional fillers. 24-. (canceled)5. The compound of wherein Q is SnRwhere each Rindependently is a hydrocarbyl group or together claim 1 , with the Sn atom claim 1 , form a cyclic group.6. The compound of wherein Q is NRwhere Ris a hydrocarbyl group.7. (canceled)8. The compound of wherein said ORsubstituent groups are on adjacent ring C atoms of said aryl group.9. The compound of wherein said aryl group is a phenyl group.10. (canceled)11. The compound of wherein each Ris a t-butyldimethylsiloxyl group.1214-. (canceled) This is a division of U.S. application Ser. No. 14/523,903, which was filed 26 Oct. 2014 and issued as U.S. Pat. No. 10,227,425 on 12 Mar. 2019, which is a continuation of U.S. application Ser. No. 12/810,846, which had a 371(c) completion (filing) date of 7 Jul. 2010 and now issued as U.S. Pat. No. 8,871,871 on 28 Oct. 2014, which was a national stage entry of intl. appl. PCT/US2008/088384, filed 28 Dec. 2008, which claimed the benefit of each of U.S. provisional appl. nos. 61/017,278 filed 28 Dec. 2007, 61/127,586 filed 14 May 2008, 61/082,181 filed 18 Jul. 2008, and 61/110,107 filed 31 Oct. 2008.Traction performance is one of the primary evaluation criteria for tire treads, and performance on wet surfaces such as snow and ice is an important factor in that evaluation.Deformation of tread rubber induced by road surface asperities, rate of water drainage between the tread and road surface, and possible adhesive interactions at the interface between tread and road are some of the complex, interrelated factors that complicate the type of quantitative mechanistic understanding needed to ...

Processes For Preparing Aminosilane Functionalized Polymers

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

MODIFIER, MODIFIED AND CONJUGATED DIENE-BASED POLYMER AND RUBBER COMPOSITION INCLUDING THE SAME

The present invention provides a modifier, a modified and conjugated diene-based polymer which is modified using the same, and a rubber composition including the modified and conjugated diene-based polymer, and more particularly, a modifier which includes a compound represented by Formula 1 and is capable of improving the mixing properties between a conjugated diene-based polymer and a filler, a modified and conjugated diene-based polymer which is modified using the same, and a rubber composition including the modified and conjugated diene-based polymer. 2. The modifier of claim 1 , whereinin Formula 1,{'sup': 1', '3', '6', '7, 'Rto Rare each independently a trivalent hydrocarbon group which is substituted with —RCOOR; an unsubstituted divalent hydrocarbon group of 1 to 10 carbon atoms; a tetravalent silyl group which is substituted with an alkyl group of 1 to 20 carbon atoms; a trivalent silyl group which is substituted with an alkyl group of 1 to 20 carbon atoms; or O,'}{'sup': 1', '3', '1', '3, 'where all Rto Rare not the trivalent hydrocarbon group; the divalent hydrocarbon group; the tetravalent silyl group; the trivalent silyl group; or O, at the same time, where at least one of Rto Ris definitely the tetravalent silyl group; the trivalent silyl group; or the divalent silyl group,'}{'sup': '4', 'Ris a single bond, or an alkylene group of 1 to 20 carbon atoms,'}{'sup': 5', '8, 'Ris a cyano group; a silyl group which is substituted with an alkyl group of 1 to 20 carbon atoms; halogen; or —COR,'}{'sup': '6', 'Ris a single bond,'}{'sup': '7', 'Ris an alkyl group of 1 to 20 carbon atoms, and'}{'sup': '8', 'Ris one selected from the group consisting of an alkoxy group of 1 to 10 carbon atoms, an aryl group of 6 to 30 carbon atoms, a heteroaryl group of 6 to 30 carbon atoms, a heterocycloalkyl group of 3 to 10 carbon atoms, a heteroamine group of 2 to 10 carbon atoms, and a disilylamino group of 3 to 10 carbon atoms.'}5. A modified and conjugated diene-based polymer ...

METHOD FOR POLYMER REMOVAL FROM SINGLE-WALLED CARBON NANOTUBES

Processes for selectively dispersing semi-conducting single-walled carbon nanotubes (sc-SWCNTs) in a solvent. One process comprises adding an amine either: to a conjugated polymer extraction process (CPE) of the sc-SWCNTs; or after the CPE of the sc-SWCNTs, in which the amine partially displaces the conjugate polymer associated with the sc-SWNTs dispersed in the solvent. Another process comprises adding an amine either: to a conjugated polymer extraction process (CPE) of the sc-SWCNTs; or after the CPE of the sc-SWCNTs, with the proviso that the amine excludes EDTA. Also, a process for displacement of a conjugated polymer from the surface of semi-conducting single-walled carbon nanotubes (sc-SWCNTs) dispersed in a solvent, which comprises adding an amine either: to a conjugated polymer extraction process (CPE) of the sc-SWCNTs; or after the CPE of the sc-SWCNTs. 1. A process for selectively dispersing semi-conducting single-walled carbon nanotubes (sc-SWCNTs) in a solvent , the process comprising adding an amine either:a) to a conjugated polymer extraction process (CPE) of the sc-SWCNTs; orb) after the CPE of the sc-SWCNTs,wherein the amine partially displaces the conjugate polymer associated with the sc-SWNTs dispersed in the solvent.2. A process for selectively dispersing semi-conducting single-walled carbon nanotubes (sc-SWCNTs) in a solvent , the process comprising adding an amine either:a) to a conjugated polymer extraction process (CPE) of the sc-SWCNTs; orb) after the CPE of the sc-SWCNTs,with the proviso that the amine excludes EDTA.3. A process for displacement of a conjugated polymer from the surface of semi-conducting single-walled carbon nanotubes (sc-SWCNTs) dispersed in a solvent , the process comprising adding an amine either:a) to a conjugated polymer extraction process (CPE) of the sc-SWCNTs; orb) after the CPE of the sc-SWCNTs.4. The process of claim 1 , wherein in step b) claim 1 , the amine is added to the supernatant from the CPE.5. The process ...

Transparent peroxide curable butyl rubber

The present invention provides an optically transparent peroxide cured article made from a peroxide curable butyl rubber ionomer comprising repeating units derived from the reaction product of one or more multiolefin monomers and at least one nitrogen or phosphorous based nucleophile comprising a pendant vinyl group. A process is also disclosed for making the optically transparent article.

METHOD OF PREPARING RUBBER COMPOSITION INCLUDING SYNDIOTACTIC 1,2-POLYBUTADIENE

According to an embodiment of the present invention, there is provided a method of preparing a rubber composition, which includes (a) synthesizing a living polymer by solution polymerization of a monomer mixture including a conjugated diene-based monomer in the presence of a first catalyst; (b) reacting some ends of the living polymer with a coupling agent; (c) reacting the remaining ends of the living polymer with an organotin halide compound to prepare an end-modified conjugated diene-based polymer solution; and (d) adding a second catalyst and a conjugated diene-based monomer to the end-modified conjugated diene-based polymer solution to induce solution polymerization. 1. A method of preparing a rubber composition , comprising:(a) synthesizing a living polymer by solution polymerization of a monomer mixture including a conjugated diene-based monomer in the presence of a first catalyst;(b) reacting some ends of the living polymer with a coupling agent;(c) reacting the remaining ends of the living polymer with an organotin halide compound to prepare an end-modified conjugated diene-based polymer solution; and(d) adding a second catalyst and a conjugated diene-based monomer to the end-modified conjugated diene-based polymer solution to induce solution polymerization.2. The method of claim 1 , wherein the conjugated diene-based monomer is one or more selected from the group consisting of 1 claim 1 ,3-butadiene claim 1 , 2 claim 1 ,3-dimethyl-1 claim 1 ,3-butadiene claim 1 , piperylene claim 1 , 3-butyl-1 claim 1 ,3-octadiene claim 1 , isoprene claim 1 , and 2-phenyl-1 claim 1 ,3-butadiene.3. The method of claim 1 , wherein the monomer mixture further includes an aromatic vinyl monomer.4. The method of claim 3 , wherein the aromatic vinyl monomer is one or more selected from the group consisting of styrene claim 3 , α-methylstyrene claim 3 , 3-methylstyrene claim 3 , 4-methylstyrene claim 3 , 2 claim 3 ,4-dimethylstyrene claim 3 , 2 claim 3 ,4-diisopropylstyrene claim ...

Modified liquid diene polymer

A modified diene polymer is provided which may be added to a rubber composition together with a filler to allow the filler to be dispersed in a crosslinked product of the composition in a state that is ideal for attaining enhanced properties. A method for producing such modified diene polymers is also provided. The modified linear diene polymer has a specific functional group only at one end thereof, the average number of the functional groups per molecule being 0.8 to 1.

Catalyst Composition For Preparing Conjugated Diene-based Polymer And Conjugated Diene-based Polymer Prepared Using The Same

wherein, a, X1, and X2 are the same as defined in the disclosure.

Conjugated diene polymer, rubber composition, crosslinked rubber, rubber product, and tire

The present invention provides a conjugated diene polymer containing a low vinyl portion having a vinyl content of 2 to 20% by mol and a high vinyl portion having a vinyl content of 50% by mol or more, and a method for producing the same; a rubber composition containing a rubber component containing the conjugated diene polymer, at least one filler selected from the group consisting of carbon black and silica, a silane coupling agent, and a crosslinking agent; crosslinked rubber prepared by crosslinking the rubber composition; and a rubber product and a tire containing the crosslinked rubber. The tire can achieve both the abrasion resistance and the low fuel consumption capability, the conjugated diene polymer, the rubber composition, and the crosslinked rubber are preferred for producing the tire, and the rubber product is excellent in abrasion resistance and low heat generation property.

Method of Preparing Conjugated Diene-Based Polymer and Apparatus for Preparing Conjugated Diene-Based Polymer

A method of preparing a conjugated diene-based polymer is provided including: a step of polymerizing a first conjugated diene-based monomer in solution in a first polymerization reactor to prepare a first polymer solution including a first conjugated diene-based polymer; a step of polymerizing a second conjugated diene-based monomer in solution in a second polymerization reactor to prepare a second polymer solution including a second conjugated diene-based polymer; a step of supplying a first fluid separated from the first polymer solution to a first purification unit and purifying the first fluid; and a step of supplying a second fluid separated from the second polymer solution to a second purification unit and purifying the second fluid. An apparatus for preparing a conjugated diene-based polymer is also provided. 1. A method of preparing a conjugated diene-based polymer , comprising:{'b': '10', 'polymerizing a first conjugated diene-based monomer in solution in a first polymerization reactor to prepare a first polymer solution including a first conjugated diene-based polymer (S);'}{'b': '20', 'polymerizing a second conjugated diene-based monomer in solution in a second polymerization reactor to prepare a second polymer solution including a second conjugated diene-based polymer (S);'}{'b': '30', 'supplying a first fluid separated from the first polymer solution to a first purification unit and purifying the first fluid (S); and'}{'b': '40', 'supplying a second fluid separated from the second polymer solution to a second purification unit and purifying the second fluid (S), wherein'}the first purification unit comprises a first feed tank, a first column connected to the first feed tank, and a first′ column connected to the first column,the second purification unit comprises a second feed tank, a second column connected to the second feed tank, and a second′ column connected to the second column,a fluid discharged from an upper portion of the first column is ...

Solution polymerization process

A solution polymerization process in which polymerizable diolefin monomer, is contacted under polymerization conditions in the presence of a volatile and inert earth hydrocarbon diluent having 3 to 5 carbon atoms per molecule and a hydrocarbon solvent having 6 to 10 carbon atoms per molecule to yield a product mixture easily concentrated by flash evaporation. In preferred embodiments the diluent is present in an amount such that the monomer concentration is about 30 to about 45 weight percent in the total of monomer and diluent entering the reaction and the solvent is present in an amount such that the weight ratio of the total of solvent and diluent to monomer entering the reaction is in the range of about 4:1 to 12:1.

Gas phase polymerization process

A process for producing polymers in a gas phase reactor by continuously introducing a stream of monomer and gas into a polymerization zone while maintaining the temperature within the polymerization zone below the dew point temperature of at least one monomer present in said polymerization zone.

Gas phase polymerization process

Highly fluorinated hydrocarbons used as diluents in the polymerization of ethylenically unsaturated monomers

Patent JPS5038158B2

气相聚合方法

一种在气相反应器中通过将一种单体和气体物流引入聚合区,同时向聚合区提供至少一种液体成分来生产聚合物的方法。

Low bed-level transition, start-up, and reactor residence time control using sound waves

A process is provided for low bed level polymerization, using sound waves to prevent reactor fouling and/or sheeting. The process is useful during reactor start-up, polymer product transitioning, and for polymer residence time control in the reactor.

気相重合方法

(57)【要約】 気相反応装置において、モノマー及びガスの流れを重合域中に導入し、少なくとも一種の液体成分を重合域内に供するポリマーの製造方法。

Process for homo- or copolymerization of conjugated dienes and in situ formation of polymer blends and products made thereby

Metal complexes are disclosed containing at least one metal - nitrogen or metal - phosphorus bond, more particularly at least one metal - nitrogen or metal - phosphorus bond and at least one bond by the metal to an aromatic ring system. The preparation of the catalyst and the use of the prepared catalyst to produce homopolymers or copolymers of conjugated dienes or copolymers of conjugated dienes with alpha-olefins are also disclosed. In particular, the production of 1) polymer blends of a) homo- or copolymers of conjugated dienes through polymerization of 1,3-butadiene and/or isoprene with b) copolymers of conjugated dienes with alpha olefins through copolymerization of 1,3-butadiene or isoprene with ethylene, propene, octene or styrene and 2) polymer blends of a) homo- or copolymers of conjugated dienes through polymerization of 1,3-butadiene and/or isoprene with b) homopolymers or copolymers of alpha olefins through homo- or copolymerization of ethylene, propene, octene or styrene in the same reaction system using the catalyst system of the invention is described.

Process for polymerization utilizing a surface treated inorganic solid catalyst

Gas phase production of polydienes

A process for producing polybutadiene or polyisoprene in a gas phase reactor by continuously or intermittently introducing a stream of butadiene or isoprene monomer and optionally an inert gas into a polymerization zone while maintaining the temperature within the polymerization zone below the dew point temperature of the monomer present in said polymerization zone in the presence of a transition metal catalyst and in the presence of inert particulate material.

Gas phase production of polydienes

Gas phase polymerization process

Polymers are produced in a stirred bed or gas fluidised bed polymerisation zone of growing polymer particles by (1) introducing a stream of monomer(s), and opt. inert gas(s) or liq(s)., into the polymerisation zone; (2) continuously or intermittently introducing a catalyst; (3) continuously or intermittently withdrawing polymer; and (4) continuously withdrawing unreacted gases, compressing and cooling the gases while maintaining the temp. in the polymerisation zone below the dew pt. of at least one monomer; with the proviso that if there is only one monomer present in the feed stream, an inert gas is also present.

Polymer manufacturing method

The method for producing a polymer of the present invention comprises step (1) of continuously feeding a monomer comprising a conjugated diene compound and/or an aromatic vinyl compound to a polymerization tank, and step (2) of continuously feeding a solution comprising an organolithium compound to the polymerization tank, wherein the linear velocity of the solution comprising an organolithium compound at an opening of a feed port in step (2) is 0.1 to 5 m/sec.

气相聚合方法

本发明提出在气相反应器中制备聚合物的方法，其中将单体物流和气体连续引入聚合反应区，同时将聚合反应区的温度保持在该聚合反应区中存在的至少一种单体的露点温度以下。

Gas phase polymerization process

A process for producing polymer in a gas phase reactor by introducing a stream of monomer and gas into a polymerization zone while providing at least one liquid component in the polymerization zone.

Surface treated inorganic solid polymerization catalyst and method of polymerization therewith

Gas phase polymerization process

A process for producing polymer in a gas phase reactor by introducing a stream of monomer and gas into a polymerization zone while providing at least one liquid component in the polymerization zone.

Gas phase polymerization process

A process for producing polymer in a gas phase reactor by introducing a stream of monomer and gas into a polymerization zone while providing at least one liquid component in the polymerization zone.

Catalyst, its production and use for gas phase polymerization of conjugated dienes

Process for polymerizing olefins

A process for polymerizing an olefin by a slurry polymerization technique in a nonpolar hydrocarbon diluent in the presence of a catalyst which comprises adding a modifier of a polyvalent metal salt of an organic acid with a molecular weight of at least 300.

Gas phase polymerization process

A process for producing polymer in a gas phase reactor by introducing a stream of monomer and gas into a polymerization zone while providing at least one liquid component in the polymerization zone.

Stereospecific living polymerization of olefins by a novel Ziegler-Natta catalyst composition

An olefin polymerization pre-catalyst and a method for preparing an activated olefin polymerization catalyst composition from the pre-catalyst are disclosed: wherein M, R 1 , R 2 , R 3 , R 4 and R 5 are defined herein.

Diene rubber prepared using a metallocene catalyst of high activity

Diene rubbers (I) are prepared by polymerisation of diene compounds in solution or suspension in the presence of an organometallic compound (II) of formula RnMXm (1) and optionally a cocatalyst (III). (II) is optionally a heterogeneous catalyst on an inorganic support.

Novel catalyst system, the use thereof in the polymerization of dienes in a solution, suspension and vapour phase and the use of diene rubbers produced therewith

The present invention relates to a novel catalyst system, the use thereof in the polymerization of dienes in a solution, suspension and vapour phase, and the use of diene rubbers produced therewith, exhibiting a high cis content, an average vinyl content and a low gel content.

Catalyst for the production of olefin polymers

A catalyst composition for the polymerization of olefins is provided which comprises a catalyst compound and a co-catalyst or a support material or both a co-catalyst and a support material, wherein the catalyst compound comprises a transition metal of Group 4, 5 or 6, an organic compound containing at least one lone pair of electrons, a divalent radical and a Lewis basic group having the following formula: —C(R 7 )=Z 1 R 8 ,  (i) wherein R 7 and R 8 are each independently selected from the group consisting of hydrogen and C 1 -C 8 hydrocarbyl groups, and wherein R 7 and R 8 are not linked or are linked to form a saturated or unsaturated ring; and Z 1 is a nitrogen atom or a phosphorus atom, which bonds to M; or  wherein: Z 2 is an oxygen atom, a sulphur atom or a selenium atom, which bonds to the transition metal compound; and R 9 , R 10 and R 11 are each independently selected from the group consisting of hydrogen and C 1 -C 8 hydrocarbyl groups, wherein no pair or one pair of substituents selected from R 9 , R 10 and R 11 are linked to form a saturated or unsaturated ring.

Method for preparing conjugated diene copolymer, conjugated diene copolymer by prepared the method and rubber composition comprising the copolymer

본 발명은 공액디엔계 공중합체 제조방법에 관한 것으로, 보다 상세하게는 α-메틸스티렌 단량체, 공액디엔계 단량체 및 히드록시 알킬 (메트)아크릴레이트 단량체를 포함하여 유화 중합시키는 단계(S10)단계를 포함하고, 상기 α-메틸스티렌 단량체 및 공액디엔계 단량체는 상기 유화 중합의 중합 전환율 0%인 시점에 일괄 투입되며, 상기 히드록시 알킬 (메트)아크릴레이트 단량체는 상기 유화 중합의 중합 전환율 0% 내지 80%인 시점에서 2회 이상 분할 투입되고, 단량체 전체 함량에 대하여, 상기 α-메틸스티렌 단량체는 10 중량% 내지 50 중량%, 상기 공액디엔계 단량체는 49 중량% 내지 89 중량% 및 상기 히드록시 알킬 (메트)아크릴레이트 단량체는 0.1 중량% 내지 5 중량%로 투입되는 것인 공액디엔계 공중합체 제조방법, 이로부터 제조된 공액디엔계 공중합체 및 이를 포함하는 고무 조성물을 제공한다. The present invention relates to a method for preparing a conjugated diene-based copolymer, and more specifically, the step of emulsifying and polymerizing (S10) comprising α-methylstyrene monomer, conjugated diene-based monomer, and hydroxy alkyl (meth)acrylate monomer. Containing, the α- methyl styrene monomer and the conjugated diene-based monomer are batch-injected at a time when the polymerization conversion rate of the emulsion polymerization is 0%, and the hydroxy alkyl (meth)acrylate monomer is 0% to the polymerization conversion rate of the emulsion polymerization. It is divided into two or more times at the time of 80%, and based on the total content of the monomer, the α-methylstyrene monomer is 10% to 50% by weight, the conjugated diene-based monomer is 49% to 89% by weight, and the hydroxy The alkyl (meth)acrylate monomer provides a method for preparing a conjugated diene-based copolymer that is added at 0.1% to 5% by weight, a conjugated diene-based copolymer prepared therefrom, and a rubber composition comprising the same.