АДДУКТЫ ДИХЛОРИД МАГНИЯ - СПИРТ И ПОЛУЧАЕМЫЕ ИЗ НИХ КАТАЛИТИЧЕСКИЕ КОМПОНЕНТЫ

Настоящее изобретение относится к аддуктам дихлорид магния - спирт, содержащим определенные количества длинноцепочечных алифатических карбоновых кислот или их солей металлов. Аддукты настоящего изобретения, в частности, используются как предшественники в получении каталитических компонентов для полимеризации олефинов, имеющих уменьшенный размер частиц и/или узкое распределение частиц по размеру. Твердые аддукты содержат: MgCl, спирт ROH, в котором R представляет C-Cуглеводородную группу, присутствующую в мольном соотношении с MgClв интервале от 0,5 до 5; алифатическую карбоновую кислоту, имеющую от 8 до 22 углеродных атомов, или ее соль металла, присутствующую в количестве менее 15% мас. по отношению к общей массе аддукта. Способ получения аддуктов содержит: контактирование MgCl, спирта ROH и алифатической карбоновой кислоты в количестве менее 15% мас. по отношению к общей массе MgClи ROH и указанной кислоты или соли; нагревание системы при такой температуре, что получают жидкую фазу, содержащую ...

УДАРОПРОЧНЫЕ ПОЛИОЛЕФИНОВЫЕ КОМПОЗИЦИИ

Изобретение относится к полиолефиновым композициям для литья, к способу получения указанных полиолефиновых композиций и к их применению. Композиция содержит сополимер пропилена, первый сополимер этилена с, по меньшей мере, одним линейным или разветвленным альфа-олефином, имеющим 3-8 углеродных атомов, и второй сополимер этилена с, по меньшей мере, одним линейным или разветвленным альфа-олефином, имеющим 3-8 углеродных атомов. Сополимер пропилена имеет значение показателя полидисперсности в интервале от 4,5 до 10 и содержание изотактических пентад выше 97,5 мол.%. Причем указанный сополимер содержит, по меньшей мере, 95 мас.% (по отношению к сополимеру) звеньев, производных от пропилена. Первый сополимер сополимер этилена содержит от 25 до менее 40 мас.% (по отношению к этому сополимеру) звеньев, производных от этилена, и имеет растворимость в ксилоле при 25°С в интервале от более 85 до 95 мас.%, а второй сополимер этилена содержит от 50 до менее 75 мас.% (по отношению к этому сополимеру ...

КОМПОНЕНТЫ И КАТАЛИЗАТОРЫ ПОЛИМЕРИЗАЦИИ ОЛЕФИНОВ

Изобретение относится к компоненту твердого катализатора полимеризации олефинов CH2=CHR, где R - водород или углеводородный радикал с 1-12 атомами углерода, включающий Mg, Ti, галоген и электронный донор, выбираемый из замещенных сукцинатов определенной формулы. При использовании для полимеризации олефинов, в частности пропилена, указанные компоненты катализатора способны обеспечивать высокий выход полимеров с высоким изотактическим индексом. Сукцинаты выбирают из формулы (I), где радикалы R1 и R2, одинаковые или отличные друг от друга, представляют собой C1 -C20 линейную или разветвленную алкил-, алкенил-, циклоалкил-, арил-, арилалкил- или алкиларильную группу, возможно содержащую гетероатомы; радикалы R3-R6, одинаковые или отличные друг от друга, представляют собой водород или C1-C20 линейную или разветвленную алкил-, циклоалкил-, арил-, арилалкил- или алкиларильную группу, возможно содержащую гетероатомы, при этом радикалы R3-R6, присоединенные к одному и тому же атому углерода, могут ...

ПОЛИПРОПИЛЕН ДЛЯ ПЕНОПЛАСТА И ПЕНОПОЛИПРОПИЛЕНА

Изобретение относится к полипропиленовой композиции для пенопласта, способу получения полипропиленовой композиции и пенопласта и к вспененным изделиям, полученным из полипропиленовой композиции. Композиция содержит полипропиленовый базовый полимер в количестве не менее 96 масс.% от общей массы полипропиленовой композиции и содержание веществ, нерастворимых в горячем ксилоле, в количестве от 0.10 до 0.30 масс.% от общей массы полипропиленовой композиции. При этом композиция имеет показатель текучести расплава, (ПТР) составляющий по меньшей мере от 1,0 до 5,0 г/10 мин, прочность расплава F30 - не менее 30 сН, определенную в испытании Rheotens при 200°C, и растяжимость расплава v30 - менее 200 м/с, определенную в испытании Rheotens при 200°C. Способ получения композиции включает получение промежуточного полипропилена, имеющего ПТРв количестве от 0,5 до 2,5 г/10 мин, в присутствии асимметрического катализатора. После чего промежуточный полипропилен смешивают с пероксидом и по меньшей мере с ...

ВЫСОКОМОЛЕКУЛЯРНЫЙ ПОЛИПРОПИЛЕН С ШИРОКИМ МОЛЕКУЛЯРНО-МАССОВЫМ РАСПРЕДЕЛЕНИЕМ И С НЕБОЛЬШОЙ ДЛИНОЙ ИЗОТАКТИЧЕСКИХ ПОСЛЕДОВАТЕЛЬНОСТЕЙ

Пропиленовые полимеры с 0-2,5 мас.% олефиновых сомономеров с числом атомов углерода от двух до десяти, со среднемассовой молекулярной массой Mw от 600000 до 800000 г/моль, с соотношением Mw /Mn от 5 до 7, с массовой долей полимерной фракции с характеристической вязкостью от 600 до 900 мл/г от 40 до 60% от всего полимера и полимерной фракции с характеристической вязкостью от 200 до 250 мл/г от 40 до 60% от всего полимера и со средней длиной изотактических последовательностей от 75 до 80, получаемые полимеризацией мономеров в присутствии каталической системы, содержащей в качестве компоненты металлоцен на основе переходного металла. Полимеры легко перерабатываются в формованные изделия, прежде всего в трубы, и наряду с невысокой хрупкостью и гладкой поверхностью имеют в дополнение к этому высокую вязкость и хорошую жесткость в сочетании с хорошим показателем долговечности для формованных изделий. 1 з.п. ф-лы.

ГАЗОФАЗНЫЙ СПОСОБ ПОЛИМЕРИЗАЦИИ ПРОПИЛЕНА

Изобретение относится к способу газофазной полимеризации пропилена, необязательно в смеси с другими олефинами. Описан способ гомополимеризации или сополимеризации пропилена с прочими олефинами, осуществляемый в присутствии каталитической системы. Каталитическая система включает (а) твердый компонент катализатора, содержащий Mg, Ti, галоген, электронный донор, выбранный из 1,3-диэфиров, и 10-85 мас.% олефинового полимера; (b) алкилалюминиевое соединение; и (c) внешнее электронодонорное соединение, выбранное из соединения кремния. Компоненты (b) и (c) берутся в таких количествах, чтобы молярное соотношение Al/(ED) составляло 2-200. Твердый компонент имеет средний размер частиц 10-100 мкм. Способ пригоден для получения полипропиленового продукта, имеющего хорошие морфологические свойства, высокую стереорегулярность и обладающего свойствами самозатухания, выборочно решая или смягчая вредные воздействия, вызванные полимеризацией мелких частиц катализатора. 11 з.п. ф-лы, 1 табл., 18 пр.

НЕ СОДЕРЖАЩАЯ СИЛАН КАТАЛИТИЧЕСКАЯ КОМПОЗИЦИЯ С САМООГРАНИЧИВАЮЩЕЙСЯ АКТИВНОСТЬЮ

Настоящее изобретение относится к каталитическим композициям Циглера-Натта для применения в реакциях полимеризации и , в частности, полимеризации пропилена. Описана каталитическая композиция, включающая одну или более композиций прокатализатора Циглера-Натта, содержащих одно или более соединений переходных металлов и внутренний донор электронов, один или более алюминийсодержащих сокатализаторов, и реагент для регулирования селективности (SCA), включающий смесь эфира карбоновой кислоты и соединения, не содержащего силан, выбранный из группы, состоящей из соединения диэфира, соединения сукцината, соединения пиперидина и из их комбинаций. Технический эффект настоящая каталитическая композиция не содержит силан, имеет высокую каталитическую активность и высокую стереоселективность и является способной обеспечивать самозатухание реакции полимеризации. 9 з.п. ф-лы, 3 табл.

СПОСОБ ПОЛУЧЕНИЯ КОМПОЗИЦИИ ОКРАШЕННОГО ПОЛИПРОПИЛЕНА, ИМЕЮЩЕЙ ВЫСОКОЕ СОДЕРЖАНИЕ БЕТА-МОДИФИКАЦИИ

Изобретение относится к способу получения композиции окрашенного полипропилена, имеющей высокое содержание β-модификации. Полипропилен смешивают в расплаве, по меньшей мере, с одним неорганическим пигментом и, по меньшей мере, с одним зародышем β-кристаллизации. Добавление неорганического пигмента и зародыша β-кристаллизации разделяют либо в отношении порядка, по которому выполняется добавление, либо оно является раздельным, по меньшей мере, в отношении размещения неорганического пигмента и зародыша β-кристаллизации, т.е. они содержатся в отдельных концентратах. Требование по раздельному добавлению неорганического пигмента и зародыша β-кристаллизации еще осуществляют, когда отдельные концентраты объединяют в третий концентрат, прежде чем данный третий концентрат смешивают в расплаве с полипропиленом. Технический результат - трубы, изготовленные из полипропиленовой композиции, проявляют высокую прочность при ударе. 8 н. и 14 з.п. ф-лы, 3 табл., 3 пр.

КОМПОЗИЦИЯ ПРОКАТАЛИЗАТОРА, ВКЛЮЧАЮЩАЯ СИЛИЛОВЫЙ СЛОЖНЫЙ ЭФИР КАК ВНУТРЕННИЙ ДОНОР, А ТАКЖЕ СПОСОБ

Изобретение относится к области катализа. Описана композиция прокатализатора, включающая комбинацию из магниевого фрагмента. титанового фрагмента и внутреннего донора электронов, при этом внутренний донор электронов включает силиловый сложный эфир, имеющий структуру:где R-Rпредставляют собой водород, Rи Rявляются идентичными или различными и каждый выбирают из группы, состоящей из атома водорода и Салкильной группы. Описана композиция катализатора, включающая указанную выше композицию прокатализатора и сокатализатор и ее использование в получении полимера на олефиновой основе. Технический результат - увеличение активности композиции катализатора. 3. н. и 4 з.п. ф-лы, 9 табл., 3 пp.

СПОСОБ ДОЗИРОВАНИЯ КАТАЛИЗАТОРОВ

Предложен способ дозирования катализаторов в реактор, включающий суспендирование катализатора в углеводороде путем перемешивания в приемной емкости с обеспечением движения полученной суспензии через трехходовой дозирующий клапан и эжектор непосредственно в реактор, при этом сначала содержащую катализатор суспензию выгружают из приемной емкости посредством насоса и подвергают непрерывной циркуляции, возвращая суспензию в приемную емкость через трехходовой дозирующий клапан по замкнутой системе трубопроводов, затем устанавливают давление в приемной емкости, на 0,1-30 бар превышающее давление в реакторе, и благодаря пульсирующему функционированию трехходового дозирующего клапана, теперь находящегося в открытом положении, осуществляют непрерывную подачу суспензии в реактор через расходомер, управляющий этим клапаном, и последовательно присоединенный к нему эжектор. Приведена схема дозирующего устройства. Изобретение обеспечивает непрерывную и равномерную подачу катализатора в реактор, причем ...

СПОСОБ ПОЛУЧЕНИЯ ПОЛИМЕРОВ ПРОПИЛЕНА С ВЫСОКОЙ ТЕКУЧЕСТЬЮ

Изобретение относится к способу получения полимеров пропилена. Полученный полимер пропилена имеет скорость течения расплава (230°С, 2,16 кг) выше 30 г/10 мин. Способ осуществляется в присутствии каталитической системы, включающей (a) твердый каталитический компонент, содержащий Mg, Ti, галоген и электронодонорное соединение, выбранное из сукцинатов; (b) алкилалюминиевый сокатализатор; и (c) соединение кремния формулы RSi(OR), в которой Rпредставляет собой разветвленный алкил и R представляет собой независимо C-Cалкил. Описан также способ получения композиции полимера пропилена и гетерофазные композиции. Технический результат - получение полимеров пропилена, обладающих одновременно широким ММР и высокой скоростью течения расплава. 3 н. и 8 з.п. ф-лы, 5 табл., 7 пр.

КОМПОНЕНТ КАТАЛИЗАТОРА И КАТАЛИЗАТОР, ПРЕДНАЗНАЧЕННЫЙ ДЛЯ ПОЛИМЕРИЗАЦИИ ОЛЕФИНА, И ЕГО ПРИМЕНЕНИЕ

Группа изобретений относится к химической промышленности, конкретно к компоненту катализатора и катализатору, предназначенным для полимеризации олефина, применению катализатора и способу полимеризации олефина. Компонент катализатора характеризуется тем, что включает магний, титан, галоген и внутренний донор электронов, где внутренний донор электронов содержит эфир монокарбоновой кислоты и простой диэфир, причем мольное отношение эфира монокарбоновой кислоты к простому диэфиру составляет (0,0035-0,7):1. Компонент катализатора является продуктом, полученным по реакции источника магния, включающего элементарную серу, источника титана и внутреннего донора электронов. Техническим результатом изобретения является предоставление катализатора, применяя который можно получить полимер, обладающий высоким значением индекса изотактичности и высоким значением индекса текучести расплава. 4 н. и 17 з.п. ф-лы, 2 ил., 2 табл., 14 пр.

ТЕРМОФОРМОВАННОЕ ИЗДЕЛИЕ С ВЫСОКОЙ ЖЕСТКОСТЬЮ И ХОРОШИМИ ОПТИЧЕСКИМИ СВОЙСТВАМИ

Изобретение относится к термоформованным изделиям, в частности к термоформованным стаканам, включающим боковую стенку, состоящую из полимера на основе пропилена, содержащего ароматический сложный диэфир замещенного фенилена, выбранный из группы 3-метил-5-трет-бутил-1,2-фенилендибензоата и 3,5-диизопропил-1,2-фенилендибензоата и характеризующуюся значением мутности от 1 до 10% при измерении в соответствии с ASTM D 1003. Термоформованные изделия имеют высокую жесткость, хорошую прочность на сжатие, превосходную технологичность и превосходные оптические свойства. 2 н. и 10 з.п. ф-лы, 3 табл., 3 ил.

КОМПОЗИЦИЯ КАТАЛИЗАТОРА ДЛЯ ПОЛИМЕРИЗАЦИИ ОЛЕФИНА, СПОСОБ ПОЛУЧЕНИЯ ПОЛИОЛЕФИНА И ПОЛИОЛЕФИНОВАЯ СМОЛА

Изобретение относится к композиции катализатора полимеризации для получения полиолефина, содержащей одно первое металлоорганическое соединение, описывающееся следующей далее формулой 1, одно второе металлоорганическое соединение, описывающееся следующей далее формулой 2, и алкилалюмоксан; способу получения полиолефина и полиолефиновых смол. 5 н. и 7 з.п. ф-лы, 8 ил., 8 табл., 12 пр.

СПОСОБ (СО)ПОЛИМЕРИЗАЦИИ ОЛЕФИНОВ

Описывается многостадийный способ полимеризации одного или более олефинов формулы СН2=СHR, где R представляет собой водород или алкильную, циклоалкильную или арильную группу с 1-10 атомами углерода, отличающийся тем, что он включает (А) первую стадию полимеризации, на которой для получения олефинового гомо- или сополимера полимеризуют один или более указанных олефинов в одном или более реакторах в присутствии катализатора, содержащего продукт реакции между алкилалюминиевым соединением и твердым компонентом, включающим соединение переходного металла MI, выбранного из группы, содержащей титан и ванадий, не содержащее связей MI-π и галогенид магния в активной форме; (В) стадию обработки, в ходе проведения которой продукт, полученный на первой стадии полимеризации (А) любым способом (а) приводят в контакт с соединением, способным дезактивировать катализатор, присутствующий на указанной стадии (А), и (б) приводят в контакт с соединением переходного металла М, выбранным из группы, содержащей ...

ПОЛИМЕРИЗАЦИЯ ОЛЕФИНОВ В ГАЗОВОЙ ФАЗЕ С ПРИМЕНЕНИЕМ ДВОЙНОЙ КАТАЛИТИЧЕСКОЙ СИСТЕМЫ

Изобретение относится к способу газофазной полимеризации олефинов, осуществляемой в отдельном горизонтально расположенном реакторе. Описан газофазный способ (со)полимеризации пропилена в реакторе с поршневым режимом двухфазного потока, в котором, по меньшей мере, один мономер контактирует с каталитической системой, включающей титансодержащий компонент на носителе - галогениде магния, алюминийорганический компонент, в котором компоненты каталитической системы добавляют через впускные отверстия, расположенные аксиально вдоль реактора, и двумя внешними электронодонорными компонентами, представляющими собой кремнийорганические соединения, отличающийся тем, что прибавление первого внешнего электронодонорного компонента в реактор осуществляется через впускное отверстие, расположенное аксиально рядом с отверстием для впуска компонента, включающего титан содержащий компонент на носителе, и прибавление, по меньшей мере, второго внешнего электронодонорного компонента, обладающего более высокой стереорегулирующей ...

ПИРИДИЛДИАМИДНЫЕ КОМПЛЕКСЫ ПЕРЕХОДНЫХ МЕТАЛЛОВ, ИХ ПОЛУЧЕНИЕ И ПРИМЕНЕНИЕ

Изобретение относится к пиридилдиамидному комплексу переходного металла. Комплекс описывается общей формулой (IV)в которой М обозначает Ti, Zr или Hf; R, R, Rи Rозначают водород; Rи Rнезависимо выбраны из группы, включающей алкилы и фенильные группы, которые содержат от 0 до 5 различных заместителей, которые включают F, Cl, Br, I, CF, NO, алкоксигруппу, диалкиламиногруппу, гидрокарбил (такой как алкил и арил) и замещенные гидрокарбилы (такие как гетероарил), содержащие от 0 до 10 атомов углерода; Rи Rвсе независимо обозначают -E(R)(R)-, где Е обозначает углерод, и каждый Rи Rнезависимо выбран из группы, включающей водород и фенильные группы; R, Rи Rозначают водород; L обозначает анионную отщепляющуюся группу, причем группы L могут быть одинаковыми или разными и любые две группы L могут быть связаны с образованием дианионной отщепляющейся группы; n равно 0, 1, 2, 3 или 4; L' выбран из группы, включающей простые эфиры, простые тиоэфиры, амины, нитрилы, имины, пиридины и фосфины; и w равно ...

ВЫСОКОАКТИВНЫЙ КАТАЛИЗАТОР ДЛЯ ПОЛИМЕРИЗАЦИИ ОЛЕФИНОВ, СПОСОБ ЕГО ПОЛУЧЕНИЯ И СПОСОБ ПОЛУЧЕНИЯ ПОЛИОЛЕФИНОВ

Описывается способ получения высокоактивного катализатора для полимеризации олефинов путем взаимодействия тетранеофилциркония в углеводороде в качестве реакционной среды с оксидом металлов IIа, IIIа, IVа и IVb групп с частично гидроксилированной поверхностью или смесью оксидов, отличающийся тем, что используют предварительно перекристаллизованный из жидкого углеводорода тетранеофилцирконий, в случае необходимости полученный катализатор гидрируют, затем полученный катализатор частично или полностью отделяют от образовавшихся побочных продуктов, в основном третбутилбензола, путем промывания жидким инертным углеводородом, или путем механического отделения, или путем выпаривания предпочтительно в вакууме, или комбинацией этих способов отделения, при этом полученный катализатор содержит 1,66 - 1,72 вес. % циркония. Описывается катализатор для полимеризации олефинов, а также способ получения полиолефинов. Технический результат - получение катализаторов с более высокой активностью, с помощью которых ...

СПОСОБ ПОЛУЧЕНИЯ КАТАЛИЗАТОРА НА НОСИТЕЛЕ

Изобретение относится к области изготовления катализаторов, а именно к изготовлению катализаторов Циглера-Натта, которые могут быть использованы для синтеза высокомолекулярных гомо- и сополимеров α -олефинов, a -олефинов и полярных мономеров, каучуков, в частности в производстве полипропилена. Изобретение позволяет получить высокоактивный катализатор на носителе, обеспечивающий получение полипропилена с относительно высокой объемной плотностью, высокой стереорегулярностью и распределением по размерам в узких пределах. Для этого способ получения катализатора на носителе включает следующие операции: обработка диоксида кремния жидким хлорсодержащим соединением, выбранным из группы: трихлорид бора, трихлорид алюминия, тетрахлорид кремния, добавление обработанного диоксида кремния к жидкому углеводороду, добавление в полученную суспензию 2-метилпентилокси магнийхлорида, затем сложного эфира титана, выбираемого из группы: тетракрезилтитанат, тетрабутоксид титана, тетраноналат титана, тетра-2- ...

КООРДИНАЦИОННЫЕ СОЕДИНЕНИЯ МОНОЦИКЛОПЕНТАДИЕНИЛА С ПЕРЕХОДНЫМИ МЕТАЛЛАМИ, СПОСОБ ИХ ПОЛУЧЕНИЯ И КАТАЛИТИЧЕСКАЯ СИСТЕМА ДЛЯ ПОЛУЧЕНИЯ ПОЛИОЛЕФИНОВ

Согласно настоящему изобретению предлагается каталитическая система, включающая в себя соединение переходного металла группы IVB Периодической системы элементов, и алюмоксан. Предложенная каталитическая система может быть использована для полимеризации олефинов с целью получения высокомолекулярного полимера. 3 с. и 1 з.п.ф-лы, 13 табл., 4 ил.

ПОЛИПРОПИЛЕНОВАЯ КОМПОЗИЦИЯ С ВЫСОКОЙ ЖЕСТКОСТЬЮ И УДАРНОЙ ВЯЗКОСТЬЮ

Изобретение относится к полипропиленовой композиции, имеющей очень высокую жесткость в сочетании с хорошей ударной вязкостью, к способу ее получения, к изделию и к применению указанной композиции для получения труб, автомобильных деталей, бытовых приборов, транспортных контейнеров. Композиция включает пропиленовый гомо- или сополимер (А) с показателем полидисперсности (PI), определенным в соответствии со стандартом ISO 6721-1, по меньшей мере 5,8 Па-1, и неорганический наполнитель (В) в количестве от 4,0 до 18,0 частей по массе в расчете на 100 частей по массе (А)+(В). При этом должно выполняться следующее соотношение (80F+1700)МПа≤T, где F обозначает части по массе компонента (В) в расчете на 100 частей по общей массе (А)+(В), Т обозначает модуль упругости при растяжении в МПа, определенный в соответствии с ISO 527-2, полипропиленовой композиции, измеренный на образце для испытаний, полученном литьем под давлением согласно стандарту ISO 1873-2. Полимер обладает хорошими поверхностными ...

ГЕТЕРОФАЗНЫЙ ПОЛИПРОПИЛЕН С УЛУЧШЕННЫМ СООТНОШЕНИЕМ МЕЖДУ ЖЕСТКОСТЬЮ И ПРОЗРАЧНОСТЬЮ

Группа изобретений относится к гетерофазной полипропиленовой композиции с достаточно высоким показателем текучести расплава, высокой жесткостью, приемлемыми ударными свойствами и выгодным соотношением между жесткостью и прозрачностью, способу получения полипропиленовой композиции, изделию, изготовленному из полипропиленовой композиции и применению полипропиленовой композиции для изготовления пленок и литых изделий, таких как тонкостенные полимерные контейнеры для упаковки. Полипропиленовая гетерофазная композиция включает по меньшей мере фракцию полипропиленового гомополимера, фракцию статистического полипропиленового сополимера, две различные фракции этилен пропиленового каучука и фракцию гомо- или сополимера этилена. Технический результат, достигаемый при использовании композиции и способа ее получения для изготовления пленок и литых изделий, заключается в том, чтобы обеспечить хорошую ударную прочность при низкой температуре, а также улучшенную текучесть и прозрачность изделия. 4 н.

Способ очистки загрязненного полиэтилена

В изобретении описан способ очистки регенерированного полиэтилена, например полиэтилена, регенерированного после бытового использования или после промышленного использования. Способ включает получение регенерированного полиэтилена и приведение его в контакт с первым жидким растворителем при повышенной температуре и давлении с получением экстрагированного регенерированного полиэтилена. Экстрагированный регенерированный полиэтилен растворяют в растворителе, выбранном из группы, состоящей из первого жидкого растворителя, второго жидкого растворителя или их смесей при повышенной температуре и давлении. Получают раствор полиэтилена и осуществляют очистку при повышенной температуре и давлении посредством контакта раствора полиэтилена с твердой средой, чтобы получить более чистый раствор полиэтилена. Затем от более чистого раствора полиэтилена отделяют более чистый полиэтилен. Первый и второй жидкие растворители имеют тот же или другой химический состав и выбирают из группы, состоящей из алифатических ...

ПОЛИОЛЕФИНОВЫЕ КОМПОЗИЦИИ, УСТОЙЧИВЫЕ К ДИНАМИЧЕСКИМ НАГРУЗКАМ

... 1. Композиция олефинового полимера, содержащая (в массовых долях, если не указано иное): А) 60-95% гомополимера пропилена или сополимера пропилена, содержащего 3% или меньше этилена или С4-С10 б-олефина(ов) или их комбинаций, при этом указанный гомополимер или сополимер имеет значение индекса полидисперсности (P.I.) от 4,6 до 10, а содержание изотактических пентад (mmmm), определяемое методом13С-ЯМР-спектроскопии для фракции, нерастворимой в ксилоле при 25°С, составляет более 98 мол.%; В) 5-40% сополимера этилена, содержащего от 40 до 70% пропилена или С4-С10 α-олефина(ов) или их комбинаций и, необязательно, незначительные пропорции диена; при этом указанная композиция имеет профиль фракционирования при температуроповышающем элюировании (TREF), получаемый фракционированием в ксилоле с отбором фракций при температурах 40°С, 80°С и 90°С, в котором содержание этилена Y во фракции, отобранной при 90°С, удовлетворяет следующему соотношению (I): Y=-0,8+0,035Х+0,0091Х2 где Х означает содержание ...

СТАЛЬНЫЕ ТРУБЫ С ПОКРЫТИЕМ ИЗ ПОЛИОЛЕФИНА

... 1. Стальные трубы с покрытием из полиолефина с высокой динамической стойкостью на излом во время монтажа и в ходе эксплуатации, состоящие из сердечника стальной трубы, необязательно, промежуточного вспененного пластмассового материал и покрытия из полиолефина, отличающиеся тем, что покрытие из полиолефина состоит из пропиленовых сополимеров с зародышеобразователями кристаллизации в β-форме, содержащих от 90,0 до 99,9% (мас.) звеньев пропилена и от 0,1 до 10,0% (мас.) звеньев α-олефинов с 2 или 4-18 атомами углерода, с индексами расплава в диапазоне от 0,1 до 8 г/10 мин при 230°С/2,16 кг, где тестируемая труба из полиолефина, изготовленная из пропиленового сополимера с зародышеобразователями кристаллизации в β-форме, имеет критическое давление >25 бар и динамическую стойкость на излом >3,5 МНм-3/2. 2. Стальные трубы с покрытием из полиолефина по п.1, где пропиленовыми сополимерами с зародышеобразователями кристаллизации в β-форме являются пропиленовые блок-сополимеры с зародышеобразователями ...

СПОСОБ ПОЛУЧЕНИЯ ПОЛИМЕРОВ ПРОПИЛЕНА С ВЫСОКОЙ ТЕКУЧЕСТЬЮ

... 1. Способ получения полимеров пропилена, имеющих показатель полидисперсности выше 5 и значение индекса расплава, определенное согласно ISO 1133 (230°C, 2,16 кг), выше 30 г/10 мин, осуществляемый в присутствии каталитической системы, включающей ! (а) твердый каталитический компонент, содержащий атомы Mg, Ti и галогена и электронодонорное соединение, выбранное из сукцинатов; ! (b) алкилалюминиевый сокатализатор; и ! (с) соединение кремния формулы R1Si(OR)3, в которой R1 представляет собой разветвленный алкил и R представляет собой независимо С1-С10 алкил. ! 2. Способ по п.1, в котором электронодонорное соединение выбрано из сукцинатов формулы (I): ! ! где радикалы R1 и R2, одинаковые или отличающиеся друг от друга, представляют собой С1-С20 линейную или разветвленную алкильную, алкенильную, циклоалкильную, арильную, арилалкильную или алкиларильную группу, необязательно содержащую гетероатомы; радикалы R3-R6, одинаковые или отличающиеся друг от друга, представляют собой водород или С1-С20 ...

СПОСОБ ПОЛУЧЕНИЯ ПОЛИПРОПИЛЕНА, ИМЕЮЩИЙ ПОВЫШЕННУЮ ПРОИЗВОДИТЕЛЬНОСТЬ

... 1. Способ получения полипропилена (РР) при использовании процесса последовательной полимеризации, включающий реактор предварительной полимеризации (PR) и по меньшей мере два реактора полимеризации (R1 и R2), соединенных в серию, где полимеризацию проводят по меньшей мере в двух реакторах полимеризации (R1 и R2) в присутствии катализатора Циглера-Натта (ZN-C), и указанный катализатор Циглера-Натта (ZN-C) содержит(a) прокатализатор (PC), содержащий(a1) соединение переходного металла (ТМ),(а2) соединение металла (М), где металл выбирают из групп 1-3 Периодической таблицы (IUPAC),(а3) внутренний донор электронов (ID),(b) сокатализатор (Со) и(c) внешний донор (ED),гдеуказанный катализатор Циглера-Натта (ZN-C) присутствует в реакторе предварительной полимеризации (PR) и дополнительно к пропилену (С3) в указанный реактор предварительной полимеризации (PR) подают этилен (C2)(i) при соотношении подачи C2/C3 от 0,5 до 10,0 г/кг;и/или(ii) подается, таким образом, что в реакторе предварительной полимеризации ...

КОМПОНЕНТ КАТАЛИЗАТОРА И КАТАЛИЗАТОР, ПРЕДНАЗНАЧЕННЫЙ ДЛЯ ПОЛИМЕРИЗАЦИИ ОЛЕФИНА, И ЕГО ПРИМЕНЕНИЕ

Группа изобретений относится к химической промышленности, конкретно к компоненту катализатора и катализатору, предназначенным для полимеризации олефина, применению катализатора и способу полимеризации олефина. Компонент катализатора характеризуется тем, что включает магний, титан, галоген и внутренний донор электронов, где внутренний донор электронов содержит эфир монокарбоновой кислоты и простой диэфир, причем мольное отношение эфира монокарбоновой кислоты к простому диэфиру составляет (0,0035-0,7):1. Компонент катализатора является продуктом, полученным по реакции источника магния, включающего элементарную серу, источника титана и внутреннего донора электронов. Техническим результатом изобретения является предоставление катализатора, применяя который можно получить полимер, обладающий высоким значением индекса изотактичности и высоким значением индекса текучести расплава. 4 н. и 17 з.п. ф-лы, 2 ил., 2 табл., 14 пр.

КАТАЛИЗАТОР ДЛЯ ПОЛИМЕРИЗАЦИИ ОЛЕФИНОВ И СПОСОБ ЕГО ПОЛУЧЕНИЯ

... 1. Способ получения твердого титанового каталитического компонента для применения в качестве прокатализатора для каталитической системы Циглера-Натта, причем указанный способ в основном включает:(a) контактирование соединения диалкилмагния, представленного R′R″Mg, с солюбилизирующим магний соединением с образованием реакционной смеси, где каждый из элементов R′ и R″ представляет собой углеводородную группу, имеющую С-Сатомов углерода, отличающийся тем, что контактирование соединения диалкилмагния с солюбилизирующим магний соединением приводит к образованию первой реакционной смеси, содержащей алкоксид магния в реакционной смеси;(b) добавление титанового соединения, представленного Ti(OR′′′)X, где X представляет собой атом галогена; R′′′ - углеводородную группу и p - целое число, меньшее или равное 4, для преобразования алкоксида магния в реакционной смеси с образованием второй реакционной смеси;(c) добавление по меньшей мере одного внутреннего донора электронов либо после этапа (a), либо ...

ПРОПИЛЕНОВЫЕ ПОЛИМЕРЫ С УЛУЧШЕННЫМИ СВОЙСТВАМИ

... 1. Пропиленовые полимеры с улучшенными свойствами, содержащие пропиленовые гомополимеры с индексами расплава в диапазоне от 0,05 до 15 г/10 мин при 230°С/2,16 кг или пропиленовые блок-сополимеры, содержащие от 90,0 до 99,9% (мас.) звеньев пропилена и от 0,1 до 10% (мас.) звеньев α-олефинов с 2 или 4-18 атомами углерода, с индексами расплава в диапазоне от 0,05 до 20 г/10 мин при 230°С/2,16 кг, или их смеси, где пропиленовыми гомополимерами или пропиленовыми блок-сополимерами являются пропиленовые полимеры с зародышеобразователями кристаллизации в β-форме, где пропиленовые гомополимеры с зародышеобразователями кристаллизации в β-форме имеют IRτ≥0,98, модуль упругости при растяжении ≥1500 МПа при 23°С и ударную вязкость по Шарпи ≥3 кДж/м2 при -20°С с надрезом, а пропиленовыми блок-сополимерами с зародышеобразователями кристаллизации в β-форме являются полимеры, которые имеют IRτ пропиленового гомополимерного блока ≥0,98, модуль упругости при растяжении ≥1100 МПа при 23°С и ударную вязкость ...

ПРОПИЛЕН-ПОЛИМЕРНЫЕ КОМПОЗИЦИИ

Изобретение относится к пропиленовой композиции, предназначенной для получения формованных изделий. Композиция содержит А) от 60 до 75 мас.% гомополимера пропилена, имеющего коэффициент полидисперсности (P.I.) от 4,3 до 4,9, фракцию, нерастворимую в ксилоле при 25°C, выше чем 95%, и скорость течения расплава (MFR), составляющую от 20 до 75 г/10 мин, измеренную при 230°С и нагрузке 2,16 кг, и В) от 25 до 40 мас.% сополимера пропилена, содержащего от 46,0 до 49,0 мас.% звеньев, полученных из этилена. Кроме того, композиция имеет характеристическую вязкость фракции, растворимой в ксилоле при 25°C, от 2,2 до 2,9 дл/г и отношение 10,7+1,3xMFRa-17,7xP.I.-29,3xIV+4,9xXs (I), составляющее от 40 до 66, где MFR представляет собой скорость течения расплава компонента А), P.I. представляет собой коэффициент полидисперсности компонента A), IV представляет собой характеристическую вязкость фракции, растворимой в ксилоле при 25°C, а Xs представляет собой растворимую в ксилоле при 25°C фракцию и составляет ...

КОМПОНЕНТЫ ВОЛОКОННО-ОПТИЧЕСКОГО КАБЕЛЯ

Настоящее изобретение относится к компонентам волоконно-оптического кабеля типа буферных трубок, трубок сердечника или трубок профилированного сердечника, изготовленным из экструдированной композиции, включающей полиэтилен высокой плотности, кристаллический полипропилен и олефиновый блочный композит. Описана полимерная композиция для защитного компонента волоконно-оптического кабеля, включающая: (a) бимодальный полиэтилен высокой плотности в количестве, составляющем по меньшей мере 50 мас.% по отношению к общей массе полимерной композиции, (b) кристаллический полипропилен в количестве, составляющем более чем 0, но менее чем 50 мас.% по отношению к общей массе полимерной композиции, и (c) олефиновый блочный композит в количестве, составляющем от 1 до 20 мас.% по отношению к общей массе полимерной композиции. Также в изобретении раскрыты экструдированный защитный компонент волоконно-оптического кабеля, включающий вышеописанную экструдированную полимерную композицию, и волоконно-оптический ...

СПОСОБ ПОЛУЧЕНИЯ КОМПОНЕНТОВ КАТАЛИЗАТОРА ДЛЯ ПОЛИМЕРИЗАЦИИ ОЛЕФИНОВ

Изобретение относится к способу получения твердого компонента катализатора для (со)полимеризации CH2=CHR олефинов, в котором R представляет собой водород или углеводородный радикал с 1-12 атомами углерода, включающий соединение Ti и, необязательно, электронодонорное соединение на носителе на основе хлорида Mg. Способ включает одну или несколько стадий (а), проводимых при температуре, составляющей от 0 до 150°C, в котором соединение на основе Mg формулы (MgClmX2-m)·nC2H5OH, где m составляет от 0 до 2, n составляет от 0 до 6, и где X представляет собой галоген, вступает в реакцию с жидкой средой, содержащей соединение Ti, имеющее, по меньшей мере, связь Ti-Cl, в таком количестве, чтобы молярное соотношение Ti/Mg составляло больше чем 3, и по меньшей мере одну стадию (b), в которой твердые частицы, поступающие со стадии (а), суспендируются в жидкой среде, содержащей углеводород, при температуре, составляющей от 10 до 100°С. Способ характеризуется тем, что по меньшей мере одна из указанных ...

ПОЛИОЛЕФИНЫ С НИЗКОЙ ЗОЛЬНОСТЬЮ И СПОСОБ ИХ ПОЛУЧЕНИЯ

ПИРИДИЛДИАМИДНЫЕ КОМПЛЕКСЫ ПЕРЕХОДНЫХ МЕТАЛЛОВ, ИХ ПОЛУЧЕНИЕ И ПРИМЕНЕНИЕ

... 1. Пиридилдиамидный комплекс переходного металла, для применения для полимеризации алкена, описывающийся общей формулой (I) ! ! в которой М обозначает металл группы 3, 4, 5, 6, 7, 8, 9, 10, 11 или 12; ! Z обозначает -(R14)pC-C(R15)q-, ! где R14 и R15 независимо выбраны из группы, включающей водород, гидрокарбилы (такие как алкилы) и замещенные гидрокарбилы, и где соседние группы R14 и R15 могут быть связаны с образованием ароматического или насыщенного замещенного или незамещенного гидрокарбильного кольца, которое содержит 5, 6, 7 или 8 кольцевых атомов углерода и в котором заместители кольца могут связываться с образованием дополнительных колец, ! р равно 0, 1 или 2, и ! q равно 0, 1 или 2; ! R1 и R11 независимо выбраны из группы, включающей гидрокарбилы (такие как алкилы и арилы), замещенные гидрокарбилы (такие как гетероарилы) и силильные группы; ! R2 и R10 все независимо обозначают -E(R12)(R13)-, где Е обозначает углерод, кремний или германий и каждый R12 и R13 независимо выбран из ...

ТВЕРДЫЙ КАТАЛИТИЧЕСКИЙ КОМПОНЕНТ ДЛЯ ПОЛИМЕРИЗАЦИИ ОЛЕФИНОВ, СПОСОБ ПОЛУЧЕНИЯ ТВЕРДОГО КАТАЛИТИЧЕСКОГО КОМПОНЕНТА ДЛЯ ПОЛИМЕРИЗАЦИИ ОЛЕФИНОВ, КАТАЛИЗАТОР ПОЛИМЕРИЗАЦИИ ОЛЕФИНОВ, СПОСОБ ПОЛУЧЕНИЯ ПОЛИМЕРА ОЛЕФИНА, СПОСОБ ПОЛУЧЕНИЯ СОПОЛИМЕРА ПРОПИЛЕНА И СОПОЛИМЕР ПРОПИЛЕНА

СПОСОБ И УСТРОЙСТВО ДЛЯ ПОЛИМЕРИЗАЦИИ ПРОПИЛЕНА

... 1. Способ получения гетерофазных пропиленовых сополимеров путем полимеризации пропилена в присутствии катализатора полимеризации и водорода в качестве регулятора молекулярного веса, включающий следующие стадии: а) полимеризация пропилена в газовой или жидкой фазе, необязательно совместно с одним или более α-олефиновыми сомономерами, с получением фракции кристаллического полимера; b) сополимеризация этилена с пропиленом и/или 1-бутеном и необязательно одним или более альфа-олефиновыми сомономерами С5-С12 в газофазном реакторе с соединенными друг с другом зонами полимеризации, где растущие полимерные частицы перетекают снизу вверх через первую зону полимеризации (устройство с восходящим потоком) в условиях быстрого псевдоожижения или транспортирования, покидают упомянутое устройство с восходящим потоком и поступают во вторую зону полимеризации (устройство с нисходящим потоком), через которую они перетекают сверху вниз под действием силы тяжести, покидают упомянутое устройство с нисходящим ...

ВЫСОКОАКТИВНЫЙ КАТАЛИЗАТОР ДЛЯ ПОЛИМЕРИЗАЦИИ ОЛЕФИНОВ, СПОСОБ ЕГО ПОЛУЧЕНИЯ И СПОСОБ ПОЛУЧЕНИЯ ПОЛИОЛЕФИНОВ

Предложен высокоактивный катализатор для полимеризации олефинов, содержащий металлоорганические соединения Ti, Zr или Hf и частично гидроксилированные оксиды металлов из групп IIa, IIIa, IYa, IYb периодической системы, который в основном не содержит побочных продуктов, а также способ получения этого катализатора и способ полимеризации с его применением.

КОМПОЗИЦИЯ ПРОКАТАЛИЗАТОРА С АЛКОКСИАЛКИЛ-2-ПРОПЕНОАТНЫМ ВНУТРЕННИМ ДОНОРОМ ЭЛЕКТРОНОВ И ПОЛУЧЕННЫЙ ИЗ НЕЕ ПОЛИМЕР

... 1. Композиция прокатализатора, содержащая: комбинацию магниевого фрагмента, титанового фрагмента и внутреннего донора электронов, содержащего алкоксиалкил-2-пропеноат.2. Композиция прокатализатора по п.1, где алкоксиалкил-2-пропеноат имеет структуру (I)(I)где R-Rявляются одинаковыми или разными, Rвыбирают из группы, состоящей из С-Cпервичной алкильной группы, замещенной C-Cпервичной алкильной группы и C-Cалкенильной группы; Rвыбирают из группы, состоящей из водорода, С-Cпервичной алкильной группы, замещенной C-Cпервичной алкильной группы и C-Cалкенильной группы; и каждый из R, R, Rвыбирают из группы, состоящей из водорода, галогена, С-Cгидрокарбильной группы и замещенной С-Cгидрокарбильной группы.3. Композиция прокатализатора по п.2, где Rи Rвыбирают из структуры (II)C(H)=C(R)(R) (Π),где Rи Rявляются одинаковыми или разными, каждый из Rи Rвыбирают из группы, состоящей из водорода и C-Cгидрокарбильной группы.4. Композиция прокатализатора по п.1, где внутренний донор электронов является компаундированным ...

СПОСОБ ПОЛИМЕРИЗАЦИИ ОЛЕФИНОВ

... 1. Способ полимеризации олефинов, включающий: ! a) полимеризацию, по меньшей мере, жидкого олефинового мономера в реакторе-полимеризаторе для образования полимеризационной суспензии, содержащей полиолефин и указанный жидкий мономер; ! b) непрерывный перенос полимеризационной суспензии из реактора-полимеризатора в испарительную камеру с помощью транспортной линии, содержащей трубу, в которой устанавливается турбулентное течение трехфазного потока, содержащего полимер, жидкие мономеры и газообразные мономеры; ! c) отделение испаренного мономера от полимера в указанной испарительной камере; отличающийся тем, что непрерывно вводят средство против обрастания в жидкой форме выше впускного отверстия указанной трубы на стадии b). ! 2. Способ по п.1, где указанный турбулентный поток в трубе на стадии b) является таким, что, по меньшей мере, одно из чисел Рейнольдса паровой фазы Re(vap) или жидкой фазы Re(liq) превышает 2000000. ! 3. Способ по п.2, где в трубе на стадии b), по меньшей мере, одно ...

СПОСОБ ДОЗИРОВАНИЯ КАТАЛИЗАТОРОВ

... 1. Способ дозирования катализаторов в реактор, причем сначала катализатор суспендируют в углеводороде в приемной емкости и путем перемешивания обеспечивают движение полученной суспензии, затем суспензию через трехходовой дозирующий клапан и эжектор направляют непосредственно в реактор, отличающийся тем, что сначала содержащую катализатор суспензию выгружают из приемной емкости посредством насоса и подвергают непрерывной циркуляции, возвращая суспензию в приемную емкость через трехходовой дозирующий клапан по замкнутой системе трубопроводов, затем устанавливают давление в приемной емкости, на 0,1-30 бар превышающее давление в реакторе, и благодаря пульсирующему функционированию трехходового дозирующего клапана, теперь находящегося в открытом положении, осуществляют непрерывную подачу суспензии в реактор через расходомер, управляющий этим клапаном, и последовательно присоединенный к нему эжектор. 2. Способ по п.1, отличающийся тем, что содержимое приемной емкости посредством насоса подвергают ...

Folien Hergestellt aus Propylen, Hochalpha-Olefinpolymere

Stereospezifisches Katalysatorsystem für Olefinpolymerisation

HOCHSTEIFES POLYPROPYLENHARZ UND DARAUS BLASGEFORMTER GEGENSTAND

Übergangsmetallverbindung, diese enthaltende Olefinpolymerisationskatalysator, Verfahren zur Olefinpolymerisation damit und Homo- und Copolymere des Propylens

FESTE COKATALYSATORKOMPONENTE FÜR DIE OLEFINPOLYMERISATION UND KATALYSATORSYSTEM DAVON

Festes Titan enthaltendes Katalysatorbestandteil für Olefinpolymerisation, Verfahren zur Herstellung desselben, Katalysator für Olefinpolymerisation und Verfahren zur Olefinpolymerisation

HOCHFLIESSFÄHIGE PROPYLENBLOCKCOPOLYMERISATE

Verfahren zur Herstellung von Propylencopolymeren

Verbesserte Polymerausbeute durch geträgerte Metallocenkatalysatoren

VERFAHREN ZUR HERSTELLUNG VON ISOTAKTISCHEN POLYPROPYLENEN IN KONDENSIERTER PHASE MIT TITANOCENEN

Verfahren zur Herstellung hochstereoregulaerer Propylenpolymerisate

Solid metallocene catalyst, useful for olefin polymerization, comprises a particulate,support, an adduct of magnesium halide and a lower alkyl alcohol

A solid olefin polymerization catalyst is prepared by coating a metallocenium ion forming compound onto fine support particles having an average diameter of 1-200 microns, comprising an adduct of the magnesium halide and a 1-8C alcohol in a molar ratio of 1:1.5-5; and contacting the resulting product with a metallocene complex. A solid olefin polymerization catalyst (I), comprising (A) at least a magnesium halide, (B) at least a metallocene complex and (C) at least a metallocenium ion forming compound is prepared by: coating the compound (C) onto fine support particles having an average diameter of 1-200 microns, comprising an adduct of the magnesium halide (A) and a 1-8C alcohol in a molar ratio of 1:1.5-5; and contacting the resulting product with the metallocene complex (B). An Independent claim is included for a process for the production of polyolefins by (co)polymerization of olefins in the presence of catalyst (I).

HERSTELLUNG VON POLYPROPYLEN

METALLOCENVERBINDUNGEN, VERFAHREN ZU IHRER HERSTELLUNG UND IHRE VERWENDUNG IN KATALYSATOREN FÜR DIE OLEFINPOLYMERISIERUNG

Verfahren zur Herstellung einer UEberzugsmasse und Verfahren zur Herstellung von UEberzuegen daraus

Metallocenkatalysator und Katalysatorsystem für die Herstellung von Polypropylenemischungen aus iso- und syndiotaktischem Polypropylene

PROCESS FOR POLYMERISING PROPYLENE

... 1359844 Polymerizing propylene MONTECATINI EDISON SpA 8 July 1971 [8 July 1970] 32191/71 Heading C3P A stereoregular polypropylene of high bulk density is prepared by polymerizing propylene in the liquid phase at 40-90‹ C. in the presence of a catalyst comprising the reaction product of violet TiCl 3 (obtained by reducing TiCl 4 with an organoaluminium compound) and a compound AlR 3 or AlR 2 X, where R is a hydrocarbon radical containing 2 to 6 carbon atoms and X is a halogen, the catalyst having first been used to polymerize propylene at a temperature below 30‹ C. 0À05 to 15% by weight of the total polymer may may be prepared in this low-temperature stage. Examples describe the polymerization of propylene in n-heptane with a TiCl 3 /Et 2 AlCl catalyst.

Improvements in catalytic systems and the polymerisation of propylene therewith

Propylene is polymerized at 30 DEG -200 DEG C. with a catalyst system comprising TiCl3, an aluminium dialkyl halide and trichloroborazole in an inert hydrocarbon solvent, the atomic ratios of catalyst ingredients being Al:Ti, 0,2:1 to 10:1 and Al:B, 10:1 to 1:4. Molecular hydrogen may be present during the polymerization.

Improvements relating to the production of polypropylene

Propylene may be polymerized in the presence of a catalyst prepared by a process which comprises grinding titanium trichloride with lithium chloride under inert conditions and mixing the product with an aluminium alkyl. Grinding may be effected with rod, pebble, ball or jet mills; and grinding and polymerization may be effected in the presence of a solvent or diluent, e.g. pentane, hexane, cyclohexane, heptane, octane, isooctane, benzene, toluene or xylene. The aluminium alkyl may be aluminium triethyl or aluminium triisobutyl, or a dialkyl or monoalkyl aluminium chloride. The polymers may be purified by refluxing with a hydrogen chlorideisopropanol-acetyl acetone mixture. In Example I a catalyst of the invention is compared with one in which the lithium chloride is replaced by potassium chloride.

Propylene polymerization process

Propylene polymers of improved melt flow characteristics are obtained in a liquid pool propylene polymerization process carried out in the presence of a magnesium halide supported titanium halide-aluminum trialkyl catalyst system, where prior to its introduction to the polymerization reactor, the magnesium halide supported titanium halide catalyst component is admixed with an aromatic carboxylic acid ester electron donor and the mixture is subsequently introduced into the poymerization zone no later than about 5 days from the time of admixing.

Process for the production of shockproof and cold resistant polypropylene

Propylene is polymerized using mixed Ziegler-Natta catalysts (defined) together with hydrogen which is present in the reactor only temporarily and in different quantities during the course of the polymerization, and another olefin is added in the absence of hydrogen towards the end of the polymerization, the other olefin being propylene and preferably ethylene and/or n-butene-1. In the examples, propylene is polymerized in an autoclave containing titanium trichloride and aluminium diethyl chloride in benzene. Hydrogen is introduced (1) at the beginning of the polymerization and is subsequently vented and the polymerization completed in its absence, or (2) after an initial polymerization in its absence, or (3) in a limited amount such that the whole of the hydrogen is used up before the end of the polymerization, or (4) in the first stage only of a two-stage continuous polymerization process, the second stage completing the polymerization in its absence. Ethylene and/or n-butene-1 up to ...

PURIFIED PROPYLENE HOMOPOLYMERS OR COPOLYMERS

PRODUCTION OF CATALYST SYSTEMS

FIRM COKATALYSATORKOMPONENTE FOR THE OLEFINPOLYMERISATION AND CATALYST SYSTEM OF IT

PROPYLENE POLYMER

HETERO-CYCLIC METALLOCENE AND YOUR USE IN CATALYST SYSTEMS FOR THE PRODUCTION OF OLEFIN POLYMERS

PROCEDURE FOR THE PRODUCTION OF PROPYLENE POLYMERS WITH SMALL ASH CONTENT

PROCEDURE FOR THE PRODUCTION OF PROPERTY FLUID ONE PROPYLENE POLYMER AND PROPERTY FLUID PROPYLENE POLYMER

SEVERAL TIMES BRANCHED POLYPROPYLENE

POLYPROPYLENE FOILS WITH HIGH ONE SHRINK

CATALYST SYSTEM FROM A MIXTURE FROM CATALYST COMPONENTS TO THE PRODUCTION OF A POLYOLEFIN MIXTURE

VERFAHREN ZUR KONTINUIERLICHEN HERSTELLUNG VON ELASTISCHEN POLYPROPYLENEN

MULTI-LEVEL PROCEDURE FOR THE POLYMERIZATION OF OLEFINEN

POLYPROPYLENE COMPOSITION WITH HIGH RIGIDITY AND impact resistance

PROCEDURE AND DEVICE FOR THE POLYMERIZATION OF PROPYLENE

PROCEDURE FOR THE PRODUCTION OF BRANCHED POLYPROPYLENE

MULTI-LEVEL PROCEDURE FOR THE POLYMERIZATION OF OLEFINEN

PROCEDURE FOR THE PRODUCTION OF AMORPHOUS ALPHAOLEFINPOLYMEREN, THESE CONTAINING COMPOSITIONS AND PROCEDURES FOR THE PRODUCTION OF VERB-MOVED LIGANDS

IMPACTTOUGH POLYOLEFIN COMPOSITION

PROCEDURE FOR THE PRODUCTION OF POLYPROPYLENE

PROCEDURE FOR THE PRODUCTION OF POLYOLEFINS WITH BROAD MOL MASS DISTRIBUTION

PROCEDURE FOR THE PRODUCTION OF SYNDIOTAKTI POLYOLEFINS WITH BROAD MOL MASS DISTRIBUTION

AMORPHOUS, ELASTOMERI PROPYLENHOMOPOLYMERE.

PROCEDURE FOR MANUFACTURING HOMO AND COPOLYMERS OF THE PROPENS OF MEANS ONE ZIEGLER NATTA KATALYSATORSYSTEMS.

SOLUBLE CATALYST SYSTEMS FOR the POLYMERIZATION FROM C2 TO C10-ALK-1-ENEN.

USE OF A POLYOLEFIN MOLDING MATERIAL FOR THE PRODUCTION OF FIBERS, FILAMENTS AND FLEECES OF MEANS FUSION SPIN PROCEDURE

CRYSTALLINE PROPYLENE POLYMERS WITH IMPROVED WORKABILITY IN MELTED CONDITION AND PROCEDURE FOR YOUR PRODUCTION

HIGH-ACTIVITY CATALYSTS FOR THE OLEFINPOLYMERISATION AND POLYMERIZATION PROCEDURES USING THESE CATALYSTS

Solid catalyst component and catalyst for polymerization of olefins, and process for production of olefin polymers using same

A solid catalyst component for olefin polymerization is produced by causing (a) a solid component that includes magnesium, titanium, a halogen, and an electron donor, (b) an aminosilane compound shown by the following general formula (1), and (c) at least one organosilicon compound selected from an organosilicon compound shown by the following general formula (2-A) and an organosilicon compound shown by the following general formula (2-B) to come in contact with each other. A polymer having high stereoregularity is produced in high yield while achieving a high melt flow rate due to hydrogen by polymerizing an olefin in the presence of a catalyst that includes the solid catalyst component. R 1 n Si(NR 2 R 3 ) 4-n   (1) [CH 2 ═CH—(CH 2 ) 1 ] q SiR 4 4-q   (2-A) R 5 Si(OR 6 ) 4-s   (2-B)

Process for the Production of Polyolefins with Broad Molecular Weight Distribution

The present invention is directed to a propylene homo- or copolymer having a polydispersity index (PI), determined according ISO 6721-1, of at least 7.0 Pa −1 ; and a tensile modulus, determined according to ISO 527-2, of at least 1600 MPa measured on a test specimen prepared by injection molding according to ISO 1873-2. The present invention is furthermore directed to a process for the production of polyolefins in one or more reactors, wherein in at least one reactor the process comprises the following steps (c) feeding one or more (co)monomers and hydrogen to said at least one reactor, whereby the hydrogen concentration in said at least one reactor is periodically varied; (d) preparing an olefin homo- or copolymer in the presence of an olefin polymerization catalyst; (e) withdrawing the olefin homo- or copolymer from said at least one reactor whereby the following relation is fulfilled P H τ > 2.0 wherein P H is the time of one variation period in said at least one reactor; and τ is the average residence time of the polymer in said at least one reactor.

Process for the preparation of impact resistant propylene polymer compositions

A process for the preparation of propylene polymer compositions comprising from 50 to 90% by weight of a propylene polymer fraction insoluble in xylene at 25° C., and from 10 to 50% by weight of an ethylene copolymer fraction soluble in xylene at 25° C., said process being carried out in the presence of a specific catalyst system, is also characterized by the following step: (i) contacting the catalyst components (a), (b) and optionally (c) for a period of time ranging from 0.1 to 120 minutes, at a temperature ranging from 0 to 90° C.; (ii) polymerizing propylene in the optional presence of ethylene and/or C 4 -C 10 alpha olefins producing a propylene (co)polymer being for at least 85% by weight of insoluble in xylene at 25° C. and (iii) in a successive step, carried out in gas-phase, in the presence of the product coming from (ii), polymerizing mixtures of ethylene with a-olefins CH 2 ═CHR in which R is a hydrocarbon radical having 1-10 carbon atoms, to produce an ethylene copolymer. An increased reactivity in the last step is observed.

Propylene polymer with improved processability in thermoforming

The present invention concerns a propylene polymer comprising at least two propylene polymer fractions of different melt flow index and a minor amount of at least one comonomer, said propylene polymer being further characterized by specific ranges for melt flow index, xylene solubles content and recovery compliance. Said propylene polymer is particularly suited for thermoforming. The present invention further concerns a process for producing said propylene polymer as well as its use in thermoforming.

Blownfilm grade showing superior stiffness, transparency and processing behaviour

Extrusion blown film comprising a polypropylene composition, said polypropylene composition comprises a random propylene copolymer, a high melt strength polypropylene, a polypropylene and optionally a clarifier, wherein • the random propylene copolymer comprises units derived from propylene and at least another C 2 to C 20 α-olefin, • the high melt strength polypropylene has a branching index g′ of less than 1.0, the polypropylene (B) has a MFR 2 (230° C.) of at least 400 g/10 min, • the clarifier comprises at least one α-nucleating agent, and wherein further • the branching index g′ of the random propylene copolymer and the branching index g′ of the polypropylene are higher than the branching index g′ of the high melt strength polypropylene, • the random propylene copolymer has lower melt flow rate MFR 2 (230° C.) than the polypropylene, • the extrusion melt blown film and/or the polypropylene composition (i) fulfill(s) the equation (I) Tm−Tc<30 (I) wherein Tm is the melting tempareture [° C.] making up more than 50% of the total melting enthalpy Hm of the extrusion melt blown film or of the polypropylene composition; Tc is the crystallization temperature [° C.] of the extrusion melt blown film or of the polypropylene composition; and/or (ii) has (have) a melt flow rate MFR 2 (230° C.) of 1.0 to 5.5 g/10 min

Propylene polymers with improved properties

The invention relates to novel propylene polymers with improved properties especially with improved stiffness and impact strength comprising propylene homopolymers or propylene block copolymers with 90.0 to 99.9 wt % propylene and 0.1 to 10 wt % α-olefins with 2 or 4 to 18 carbon atoms, or mixtures thereof, wherein the propylene homopolymers or propylene block copolymers are β-nucleated propylene polymers, whereby the β-nucleated propylene homopolymers have an Irτ≧0.98 and the values for tensile modulus and Charpy impact strength as specified herein. The β-nucleated propylene block copolymers are polymers having an IRτ of the propylene homopolymer block of ≧0.98 and the values for tensile modulus and Charpy impact strength as also specified herein. The propylene polymers with an improved property spectrum are suitable for producing molded parts in a pipe system, such as pipes and fittings, inspection chambers, pipe ducting systems, extrusion or compression molded sheets and the like.

Propylene-based polymer, articles, and process for producing same

Disclosed are propylene-based polymer compositions and processes for producing same. Polymerization with an improved catalyst composition provides a propylene-based polymer with improved stiffness.

Semi continuous process for the synthesis of a catalyst for use in the manufacture of polyolefins

A semi-continuous process and system thereof, for the synthesis of a narrow particle size distribution Zeigler Natta procatalyst for use in the manufacture of polyolefins. The process comprises: (a) mixing a reaction mixture containing a titanium compound; (b) charging a first reactor with said reaction mixture; (c) removing excess reactants from said first reactor as a filtrate; (d) feeding said filtrate to at least one further reactor; and continuously removing excess reactants from said at least further reactor.

Barrier layer, a process of making a barrier layer and uses thereof

There is provided a barrier layer comprising silicate chemically coupled to a polymer matrix. There is also provided a process for making the barrier layer and uses thereof.

OLEFIN POLYMERIZATION CATALYST AND PREPARATION METHOD AND USE THEREOF

An olefin polymerization catalyst and preparation method and use thereof are provided. The components of the catalyst comprise an active magnesium halide, a titanium compound containing at least one Ti-halide bond loaded on the active magnesium halide, and an internal electron donor selected from one or more silicon esters compounds having formula (I). The method for preparing the catalyst components is that: adding spherical magnesium chloride alcoholate particles and the electron donor into the solution of titanium compound in sequence, and processing with the titanium compound for one or more times to obtain the catalyst. The catalyst system used for the olefin polymerization comprises the catalyst components, a cocatalyst and an external electron donor. The catalyst has high activity for the propylene polymerization, and the activity is 4399 gPP/gTi·h(50° C., 1 h, slurry polymerization at atmospheric pressure), and the isotacticity of the polymer is 98%. 2. The olefin polymerization catalyst according to claim 1 , wherein the estersil compound is selected from diacyl-substituted silane claim 1 , triacyl-substituted silane or tetraacyl silane.3. The olefin polymerization catalyst according to claim 1 , wherein the estersil compound is selected from:diacetyl-(2,3-epoxy-propoxy)-methyl-silane;diacetyl-(2,3-epoxy-propoxy)-ethenyl-silane;triacetyl-(furan-2-carbonyl)-silane;triacetyl-(thiophene-2-carbonyl)-silane;dimethyl-di-(pyridine-2-acetyl)-silane;methyl-chloro-di-(pyridine-2-acetyl)-silane;dichloro-di-(pyridine-2-acetyl)-silane;tetraacetylsilane;diacetyl-dibutyl-silane;diacetyl-tert-butyloxy-n-butyloxy-silane;diacetyl-dimethyl-silane;diacetyl-methyl-ethenyl-silane;diacetyl-methyl-propenyl-silane;dimethyl-di-propanoyl-silane;diacetyl-diethyl-silane;diacetyl-ethyl-ethenyl-silane;diethyl-di-propanoyl- silane;di-isobutyryl-dimethyl-silane;di-chloracetyl-dimethyl-silane;triacetyl-methyl-silane;diacetyl-(2-chloro-ethyl)-methoxy-silane;diacetyl-butoxy-methyl-silane; ...

Propylene random copolymer, method for its preparation, and compositions and articles containing the same

The present invention relates to a propylene-butene-1 random copolymer which has a butene-1 content of 1-6 mol % and a relative dispersity of butene-1, as determined according to NMR method, of greater than 98.5%. The propylene-butene-1 random copolymer of the present invention has a high relative dispersity of butene-1, as well as better transparency and heat resistance, so that it is more suitable for packaging food that may be edible after heating. Moreover, the copolymer has a lower xylene solubles content at room temperature. In addition, the present invention further relates to a method for preparing the copolymer and to a composition and an article comprising the copolymer.

FUNCTIONALIZED HYDROPHILIC AND LUBRICIOUS POLYMERIC MATRIX AND METHODS OF USING SAME

Compositions are provided herein comprising a base polymer having engrafted with a secondary polymeric matrix having hydrophilic and lubricious copolymer brushes. Each copolymer brush further comprises functional groups immobilized along the surface of the brush in a plurality of layers, the functional groups conferring hydrophilic and lubricious properties to the base polymer. These polymer compositions are useful for e.g., fabricating devices for delivery of intraocular lenses (IOLs) as well as improving the hydrophilic properties of contact lenses. 1. A medical device comprising: a base polymer having one or more engrafted surfaces , the engrafted surfaces comprising an engrafted hydrophilic and lubricious copolymer matrix.2. The medical device of claim 1 , wherein the base polymer has a substantially tubular geometry defining a lumen claim 1 , where the luminal surface comprises an engrafted hydrophilic and lubricious copolymer matrix.3. The medical device of claim 1 , wherein the base polymer has a substantially concave surface and a substantially convex surface claim 1 , and the substantially concave surface and substantially convex surface tube both include an engrafted hydrophilic and lubricious copolymer matrix.6. The method of claim 5 , wherein the base polymer is a hydrophobic bulk matrix selected from the group consisting of polypropylene claim 5 , polycarbonate claim 5 , polyethylene claim 5 , acrylbutadienestyrene claim 5 , polyamide claim 5 , polychlorotrifluoroethylene claim 5 , polytetrafluoroethylene claim 5 , polyvinyl chloride claim 5 , polyvinyldene fluoride claim 5 , polyvinylchloride claim 5 , polydimethylsiloxane claim 5 , polyethylene terephthalate claim 5 , ethylene tetrafluoroethylene claim 5 , ethylene chlortrifluoroethylene claim 5 , perfluoroalkoxy claim 5 , styrene claim 5 , polymethylpentene claim 5 , polymethylmetyacrylate claim 5 , polystyrene claim 5 , polyetheretherketone claim 5 , tetrafluoroethylene claim 5 , polyurethane claim ...

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.

Modification of propylene polymers

The invention relates to a process for increasing the melt flow index of a propylene polymer, the process comprising melt mixing the propylene polymer in the presence of aqueous hydrogen peroxide.

Polypropylene grids manufactured with a beta nucleation additive, the method of manufacture and uses thereof

Integral polymer grids, such as geogrids, are made by stretching and orienting a polypropylene starting sheet material having a defined pattern of holes or depressions in which the polypropylene is at least 50%, and preferably up to about 80%, beta crystals caused by adding a beta nucleating agent to the polypropylene, preferably in concentrations between about 10 ppm to about 100 ppm. Such beta nucleated polypropylene grids exhibit increased yield and break tensile strengths, increased 2% and 5% tensile strengths, increased modulus characteristics, increased torsional stiffness, increased impact strength, and increased grid junction strength. Methods for manufacturing the beta nucleated polypropylene mesh grids are disclosed, along with applications for stabilizing particulate material in civil engineering structures, and the like.

METHOD FOR SECONDARY MOLDING OF POLYMER NANO ORIENTED CRYSTAL MATERIAL

A method for secondary-molding a polymer nano oriented crystal material in accordance with an embodiment of the present invention includes the steps of: heating the polymer nano oriented crystal material so that the polymer nano oriented crystal material changes into a mobile phase or a melt having a dense entanglement network structure; molding the polymer nano oriented crystal material which changed into the mobile phase or the melt including the dense entanglement network in the step; and cooling the polymer nano oriented crystal material, which has undergone the step, until the polymer nano oriented crystal material changes into an ordered phase. 1. A method for secondary-molding a polymer nano oriented crystal material , comprising the steps of:(1) heating the polymer nano oriented crystal material so that the polymer nano oriented crystal material changes into (a) a mobile phase or (b) a melt having a dense entanglement network structure;(2) molding the polymer nano oriented crystal material which changed into (a) the mobile phase or (b) the melt having the dense entanglement network structure in the step (1); and(3) cooling the polymer nano oriented crystal material, which has undergone the step (2), until the polymer nano oriented crystal material changes into an ordered phase.2. The method according to claim 1 , wherein the polymer nano oriented crystal material comprises polymer nano oriented crystals having a crystal size d of not more than 300 nm and an orientation function fc of not less than 0.7 claim 1 , the orientation function fc representing a degree of orientation of polymer chains in crystals.3. The method according to claim 1 , wherein:the polymer nano oriented crystal material comprises a cylindrical high order structure; andthe cylindrical high order structure comprises a bundle of strings each of which is constituted by nano oriented crystal particles connected together.4. The method according to claim 1 , wherein the polymer nano oriented ...

Enhanced Catalyst Performance for Production of Vinyl Terminated Propylene and Ethylene/Propylene Macromers

This invention relates to a transition metal catalyst compound represented by the structure: 132.-. (canceled)33. A polymer of propylene having an Mn of more than 30 ,000 g/mol and at least 30% allyl chain ends (relative to total unsaturation).34. The polymer of claim 33 , where the polymer has an isobutyl chain end to allylic vinyl group ratio of 0.8:1 to 1.3:1.0 claim 33 , optionally less than 1400 ppm aluminum.35. The polymer of claim 33 , wherein the polymer has at least 50% allyl chain ends (relative to total unsaturation).36. The polymer of claim 33 , wherein the polymer has at least 70% allyl chain ends (relative to total unsaturation).37. The polymer of claim 33 , wherein the polymer has at least 90% allyl chain ends (relative to total unsaturation).38. The polymer of claim 33 , wherein the polymer has at least 95% allyl chain ends (relative to total unsaturation).39. The polymer of claim 33 , wherein the polymer has an Mn of more than 30 claim 33 ,000 g/mol up to 100 claim 33 ,000 g/mol.40. The polymer of claim 33 , wherein the polymer has an Mn of more than 30 claim 33 ,000 g/mol up to 60 claim 33 ,000 g/mol.41. The polymer of claim 33 , wherein the polymer has an Mn of more than 30 claim 33 ,000 g/mol up to 40 claim 33 ,000 g/mol.42. The polymer of claim 33 , wherein the polymer has an Mn of more than 30 claim 33 ,000 g/mol up to 60 claim 33 ,000 g/mol and comprises 90 to 40 mol % propylene and 10 to 60 mol % of ethylene claim 33 , wherein the copolymer has at least X % allyl chain ends (relative to total unsaturations) claim 33 , where: 1) X=(−0.94 (mol % ethylene incorporated)+100).43. The polymer of claim 33 , wherein the polymer has an Mn of more than 30 claim 33 ,000 g/mol up to 60 claim 33 ,000 g/mol and comprises less than 40 and greater than 30 mol % propylene and greater than 60 and less than 70 mol % of ethylene claim 33 , wherein the copolymer has at least 45% allyl chain ends (relative to total unsaturations).44. The polymer of claim 33 , ...

PROCESS FOR THE PREPARATION OF HIGH PURITY PROPYLENE POLYMERS

A process for the preparation of high purity propylene polymers carried out in the presence of a catalyst comprising the product obtained by reacting:—an organo-aluminium compound, with—a solid catalyst component comprising Mg, Ti and electron donor compound selected from specific diolesters, said process being carried out employing an organo-aluminum/propylene ratio equal to or lower than 1.75 mmole/kg. 2. The process according to in which the process is carried out at organo-aluminum/propylene ratio lower than 0.9 mmol/kg.3. The process according to in which in the donor of formula (A) R1 and R4 are independently selected from C1-C15 alkyl groups claim 1 , C6-C14 aryl groups claim 1 , C3-C15 cycloalkyl groups claim 1 , and C7-C15 arylalkyl or alkylaryl groups.4. The process according to in which R1 and R4 are selected from C1-C10 alkyl groups.5. The process according to in which R1 and R4 are both methyl.6. The process according to in which R2-R3 groups independently are selected from hydrogen or C1-C10 alkyl groups.7. The process according to in which both R2 and R3 groups claim 1 , are hydrogen.8. The process according to in which R groups are selected from C1-C15 alkyl groups claim 1 , C6-C14 aryl groups claim 1 , C3-C15 cycloalkyl groups claim 1 , and C7-C15 arylalkyl or alkylaryl groups.9. The process according to in which R groups are selected from C1-C5 alkyl groups.10. The process according to in which the index n ranges from 1 to 3.11. The process according to in which n is 1 and the substituent R is in position 4 of the benzoate ring.12. The process according to in which the organo-aluminum compound is an alkyl-Al compound.13. The process according to in which the alkyl-Al compound is a trialkyl-aluminum selected from triethylaluminum claim 1 , triisobutylaluminum claim 1 , tri-n-butylaluminum claim 1 , tri-n-hexylaluminum claim 1 , tri-n-octylaluminum and mixture thereof.14. The process according to in which the external electron donor is selected from ...

RESIN COMPOSITE MATERIAL AND METHOD FOR PRODUCING RESIN COMPOSITE MATERIAL

Provided is a resin composite material in which a carbon material with a graphene structure is dispersed in a synthetic resin and which has a high mechanical strength and a low linear expansion coefficient and a method for producing the resin composite material. A resin composite material contains a synthetic resin and a carbon material with a graphene structure dispersed in the synthetic resin, wherein the synthetic resin is grafted onto the carbon material and the grafting ratio thereof onto the carbon material is 5% to 3300% by weight. A method for producing a resin composite material includes the steps of: preparing a resin composite containing a synthetic resin and a carbon material with a graphene structure dispersed in the synthetic resin; and grafting the synthetic resin onto the carbon material concurrently with or after the step of preparing the resin composite. 1. A resin composite material containing a synthetic resin and a carbon material with a graphene structure , the carbon material being dispersed in the synthetic resin , wherein the synthetic resin is grafted onto the carbon material and the grafting ratio thereof onto the carbon material is 5% to 3300% by weight.2. The resin composite material according to claim 1 , further containing a resin of a different type from the synthetic resin.3. The resin composite material according to or claim 1 , wherein the carbon material with a graphene structure is flaked-graphite or carbon nanotubes.4. The resin composite material according to or claim 1 , wherein the synthetic resin is a thermoplastic resin.5. The resin composite material according to claim 4 , wherein the thermoplastic resin is a polyolefin.6. The resin composite material according to claim 4 , wherein the thermoplastic resin is an amorphous resin.7. A method for producing a resin composite material claim 4 , the method comprising the steps of:preparing a resin composite containing a synthetic resin and a carbon material with a graphene ...

Melt blown media for air filtration

Melt-blown fiber (MBF) comprising a propylene copolymer (PP), wherein the melt-blown fiber (MBF) and/or the propylene copolymer (PP) has/have (a) a melt flow rate MFR 2 (230° C.) measured according to ISO 1133 of at least 300 g/10 min, (b) a comonomer content of 1.5 to 6.0 wt.-%, the comonomers are ethylene and/or at least one C 4 to C 12 α-olefin, (c) <2,1> regiodefects of more than 0.4 mol.-% determined by 13 C-NMR spectroscopy.

Oligomeric light stabilizers with a specific functionalization

A compound of the formula (I) wherein m and n are independently of one another a number from 1 to 50; the ratio of m/n is 1:10 to 10:1, the recurring units X can have the same definition or different definitions, the recurring units Y can have the same definition or different definitions and the recurring units X and Y can have a random, alternating or block distribution; the recurring unit X is a group of the formula (I-a) and the recurring unit Y is a group of the formula (I-b) the radicals R 1 independently of one another are C 1 -C 12 alkyl or C 3 -C 12 cycloalkyl; the radicals R 2 and R 4 are independently of one another C 12 -C 30 alkyl; the radicals R3 are independently of one another hydrogen, C 1 -C 12 alkyl or C 3 -C 12 cycloalkyl.

Process for olefin polymerisation using group 4 metallocene as catalysts

A process for the preparation of a random propylene copolymer comprising polymerising propylene and at least one C2-10 alpha olefin (especially ethylene) in the presence of a catalyst; wherein said catalyst comprises: (i) a complex of formula (I): wherein M is zirconium or hafnium; each X is a sigma ligand; L is a divalent bridge selected from —R′ 2 C—, —R′ 2 C—CR′ 2 —, —R′ 2 Si—, —R′ 2 Si—SiR 2 —, —R′ 2 Ge—, wherein each R′ is independently a hydrogen atom, C1-C20-hydrocarbyl, tri(C1-C20-alkyl)silyl, C6-C20-aryl, C7-C20-arylalkyl or C7-C20-alkylaryl; each R 1 is a C4-C20 hydrocarbyl radical branched at the β-atom to the cyclopentadienyl ring, optionally containing one or more heteroatoms belonging to groups 14-16, or is a C3-C20 hydrocarbyl radical branched at the β-atom to the cyclopentadienyl ring where the β-atom is an Si-atom; n is 0-3; each R 18 is the same or different and may be a C1-C20 hydrocarbyl radical optionally containing one or more heteroatoms belonging to groups 14-16; each R 4 is a hydrogen atom or a C1-6-hydrocarbyl radical; each W is a 5 or 6 membered aryl or heteroaryl ring wherein each atom of said ring is optionally substituted with an R 5 group; each R 5 is the same or different and is a C1-C20 hydrocarbyl radical optionally containing one or more heteroatoms belonging to groups 14-16; and optionally two adjacent R 5 groups taken together can form a further mono or multicyclic ring condensed to W optionally substituted by one or two groups R 5 ; and (ii) a cocatalyst comprising an organometallic compound of a Group 13 metal.

Catalyst Composition with Alkoxyalkyl Ester Internal Electron Donor and Polymer from Same

Disclosed herein are catalyst compositions and polymers, i.e., propylene-based polymers, produced therefrom. The present catalyst compositions include an internal electron donor with a compounded alkoxyalkyl ester and optionally a mixed external electron donor. The present catalyst compositions improve catalyst selectivity, improve catalyst activity, and/or improve hydrogen response. Propylene-based polymer produced from the present catalyst composition has a melt flow rate greater than 10 g/10 min. 1. (canceled)4. The process wherein Rand Rare selected from a C-Calkene group with the structure (II){'br': None, 'sub': 11', '12, 'C(H)=C(R)(R)\u2003\u2003(II)'}{'sub': 11', '12', '11', '12', '1', '18, 'wherein Rand Rare the same or different, each of Rand Ris selected from the group consisting of hydrogen and a C-Chydrocarbyl group.'}5. The process of wherein the procatalyst composition comprises greater than 10 wt % of the alkoxyalkyl ester.6. The process of comprising a mixed external electron donor (M-EED) comprising an activity limiting agent (ALA) and a selectivity control agent (SCA).7. The process of comprising a mixed external electron donor (M-EED) comprising an activity limiting agent (ALA) claim 6 , a first selectivity control agent (SCA1) claim 6 , and a second selectivity control agent (SCA2).8. A polymerization process comprising:contacting, under polymerization conditions, propylene and optionally one or more comonomers with a catalyst composition comprising a procatalyst composition with a greater than 4.5 wt % of a compounded alkoxyalkyl ester, a cocatalyst, and an external electron donor; andforming a propylene-based polymer.9. The process of wherein the catalyst composition comprises a mixed external electron donor (M-EED) comprising an activity limiting agent (ALA) claim 8 , a first selectivity control agent (SCA1) claim 8 , and a second selectivity control agent (SCA2) claim 8 , the process comprisingforming a propylene-based polymer comprising an ...

Catalysts for olefin polymerization, processes for preparation thereof and processes for olefin polymerization

The present disclosure provides catalysts for olefin polymerization comprising titanium, silicon, magnesium, phosphorus, at least one internal electron donor compound, and at least one halogen, processes for preparing the catalysts for olefin polymerization, and processes for olefin polymerization using the catalysts for olefin polymerization.

Expanded polypropylene resin particles, and polypropylene resin in-mold-expanded molding

Polypropylene resin expanded particles comprising: a polypropylene resin as a base material resin, the propylene resin having at least two melting peaks on a DSC curve for a second temperature rise measured at a heating rate of 10 g/min with use of a heat flux differential scanning calorimeter (DSC), the at least two melting peaks including (i) a lowest temperature melting peak of not lower than 100° C. and not higher than 130° C. and (ii) a highest temperature melting peak of not lower than 140° C. and not higher than 160° C., the propylene resin having a resin DSC ratio change rate of 0.5%/° C. to 3.0%/° C., the expanded particles having two melting peaks in a DSC measurement made at a first temperature rise at the heating rate of 10 g/min, the two melting peaks including, (i) on a lower temperature side, a melting peak temperature of not lower than 100° C. and not higher than 130° C. and, (ii) on a higher temperature side, a melting peak temperature of not lower than 140° C. and not higher than 160° C. allow an in-mold foaming molded product to be produced of expanded particles that (i) have only a small change in expanded particle DSC ratio, the change corresponding to a change in foaming temperature, (ii) allow production of an in-mold foaming molded product at a very low mold heating steam pressure, (iii) exhibit low distortion, low shrinkage, and a wide range of heating conditions for molding, even if the mold heating steam pressure is increased, (iv) indicate a satisfactory moldability even in a case where the expanded particles are molded with use of, for example, a mold having a complicated shape, a large mold, and (v) keep its properties such as compressive strength, without being impaired largely, in a case where the polypropylene resin expanded particles are used to prepare an in-mold foaming molded product.

Polypropylene with living hinge properties

The present invention relates to a polypropylene which has—a melt flow rate MFR(230° C., 2.16 kg) of at least 13 g/10 min,—an amount of xylene solubles XS of 6.0 wt % or less, and—a crystalline fraction, wherein at least 10% of the crystalline fraction melts the temperature range of from 160 to 170° C., as determined by the stepwise isothermal segregation technique (SIST).

Polypropylene homopolymers with high heat deflection temperature, high stiffness and flowability

The invention relates to a polypropylene composition showing a high melt flow rate and simultaneously high stiffness and a process for the production thereof. The invention further relates to a material comprising the inventive polypropylene.

PROCESS FOR PRODUCING PROPYLENE FROM SYNGAS VIA FERMENTATIVE PROPANOL PRODUCTION AND DEHYDRATION

A process for making propylene by dehydration of propanol can include gasifying a carbonaceous solid or liquid feedstock, or reforming a gaseous carbonaceous feedstock into synthesis gas. The synthesis gas can be fermented or co-fermented by means of a microorganism into propanol. The microorganism can be a wild strain having the natural capability to ferment synthesis gas into propanol. The microorganism can be a microorganism possessing the required nucleic acid sequence information to express the enzymes for the biosynthesis of C-oxygenates modified with the required nucleic acid sequence information to express the enzymes of the Wood-Ljungdahl pathway. The microorganism can be a microorganism possessing the required nucleic acid sequence information to express the enzymes of the Wood-Ljungdahl pathway, modified with the required nucleic acid sequence information to express the enzymes for the biosynthesis of C-oxygenates. The stream can be fractionated, purified, and then dehydrated at conditions effective to make propylene. 1. A process for making propylene by dehydration of propanol , comprising:1. gasifying a carbonaceous solid or liquid feedstock or reforming gaseous carbonaceous feedstock into synthesis gas,2. removing contaminants from the synthesis gas, i. is a wild strain having the natural capability to ferment synthesis gas into substantially propanol or', {'sub': '3', 'ii. is a microorganism possessing the required nucleic acid sequence information to express the enzymes for the biosynthesis of C-oxygenates, modified by conferring it with the required nucleic acid sequence information to express the enzymes of the Wood-Ljungdahl pathway, or'}, {'sub': '3', 'iii. is a microorganism possessing the required nucleic acid sequence information to express the enzymes of the Wood-Ljungdahl pathway, modified by conferring it with the required nucleic acid sequence information to express the enzymes for the biosynthesis of C-oxygenates,'}], '3. fermenting the ...

Friedel Crafts Alkylation of Aromatics Using Vinyl Terminated Macromonomers

This invention relates to a polyolefin comprising one or more aromatic moieties according to the following formulae: 2. The polyolefin of claim 1 , wherein the VTM is one or more of:(i) a vinyl terminated oligomer or co-oligomer having at least 5% allyl chain ends;{'sup': '1', 'sub': 4', '40, '(ii) a vinyl terminated oligomer or co-oligomer having an Mn of at least 160 g/mol (measured by H NMR) comprising of one or more Cto Chigher olefin derived units, where the higher olefin polymer comprises substantially no propylene derived units; and wherein the higher olefin polymer has at least 5% allyl chain ends;'}{'sup': '1', 'sub': 5', '40, '(iii) a co-oligomer having an Mn of 300 g/mol or more (measured by H NMR) comprising (a) from 20 mol % to 99.9 mol % of at least one Cto Chigher olefin derived units, and (b) from 0.1 mol % to 80 mol % of propylene derived units, wherein the higher olefin copolymer has at least 40% allyl chain ends;'}{'sup': '1', 'sub': '4', '(iv) a co-oligomer having an Mn of 300 g/mol or more (measured by H NMR), and comprises (a) from 80 mol % to 99.9 mol % of at least one Colefin derived unit, (b) from 0.1 mol % to 20 mol % of propylene derived units; and wherein the vinyl terminated macromonomer has at least 40% allyl chain ends relative to total unsaturation;'}{'sup': '1', '(v) a co-oligomer having an Mn of 300 g/mol to 30,000 g/mol (measured by H NMR) comprising 10 mol % to 90 mol % propylene derived units and 10 mol % to 90 mol % of ethylene derived units, wherein the co-oligomer has at least X % allyl chain ends (relative to total unsaturations), where: 1) X=(−0.94*(mol % ethylene incorporated)+100), when 10 mol % to 60 mol % ethylene derived units are present in the co-oligomer, 2) X=45, when greater than 60 mol % and less than 70 mol % ethylene derived units are present in the co-oligomer, and 3) X=(1.83* (mol % ethylene incorporated)−83), when 70 mol % to 90 mol % ethylene derived units are present in the co-oligomer;'}(vi) a propylene co ...

Hydrosilation of Vinyl-Terminated Macromonomers

This invention relates to the reaction product(s) of a polyalkylhydrosiloxane and a vinyl terminated macromonomer (VTM). 1. The reaction product of a polyalkylhydrosiloxane and one or more vinyl terminated macromonomers (VTMs).2. The reaction product of claim 1 , wherein the VTM is one or more of:(i) a vinyl terminated oligomer or co-oligomer having at least 5% allyl chain ends;{'sup': '1', 'sub': 4', '40, '(ii) a vinyl terminated oligomer or co-oligomer having an Mn of at least 160 g/mol (measured by H NMR) comprising of one or more Cto Chigher olefin derived units, where the higher olefin polymer comprises substantially no propylene derived units; and'}wherein the higher olefin polymer has at least 5% allyl chain ends;{'sup': '1', 'sub': 5', '40, '(iii) a co-oligomer having an Mn of 300 g/mol or more (measured by H NMR) comprising (a) from 20 mol % to 99.9 mol % of at least one Cto Chigher olefin derived units, and (b) from 0.1 mol % to 80 mol % of propylene derived units, wherein the higher olefin copolymer has at least 40% allyl chain ends;'}{'sup': '1', 'sub': '4', '(iv) a co-oligomer having an Mn of 300 g/mol or more (measured by H NMR), and comprises (a) from 80 mol % to 99.9 mol % of at least one Colefin derived unit, (b) from 0.1 mol % to 20 mol % of propylene derived units; and wherein the vinyl terminated macromonomer has at least 40% allyl chain ends relative to total unsaturation;'}{'sup': '1', '(v) a co-oligomer having an Mn of 300 g/mol to 30,000 g/mol (measured by H NMR) comprising 10 mol % to 90 mol % propylene derived units and 10 mol % to 90 mol % of ethylene derived units, wherein the co-oligomer has at least X % allyl chain ends (relative to total unsaturations), where: 1) X=(−0.94*(mol % ethylene incorporated)+100), when 10 mol % to 60 mol % ethylene derived units are present in the co-oligomer, 2) X=45, when greater than 60 mol % and less than 70 mol % ethylene derived units are present in the co-oligomer, and 3) X=(1.83*(mol % ethylene ...

Hydroamination Of Aldehyde-Containing Macromonomers

This invention relates to a polyolefin composition comprising one or more of the following formulae: 5. The polyolefin composition of claim 1 , wherein the composition is amorphous.6. A process to functionalize polyolefins comprising the steps:contacting a transition metal catalyst with carbon monoxide, optionally in the presence of hydrogen, and one or more vinyl terminated macromonomers to provide polyolefins functionalized with an aldehyde group or a hydroxyl group; and{'sub': '3', 'contacting the aldehyde functionalized polyolefins with NH, a primary or secondary amine to provide imine functionalized polyolefins.'}7. The process of claim 6 , wherein the transition metal catalyst is a rhodium or a cobalt catalyst.8. The process of claim 7 , further comprising triphenyl phosphine.9. The process of claim 6 , further comprising the step of contacting the imine functionalized polyolefins with a hydrogenating agent to provide amine functionalized polyolefins.10. The process of claim 6 , wherein the vinyl terminated macromonomer is one or more of:(i) a vinyl terminated polymer having at least 5% allyl chain ends;{'sup': '1', 'sub': 4', '40, '(ii) a vinyl terminated polymer having an Mn of at least 160 g/mol (measured by H NMR) comprising of one or more Cto Chigher olefin derived units, where the higher olefin polymer comprises substantially no propylene derived units; and wherein the higher olefin polymer has at least 5% allyl chain ends;'}{'sup': '1', 'sub': 5', '40, '(iii) a copolymer having an Mn of 300 g/mol or more (measured by H NMR) comprising (a) from 20 mol % to 99.9 mol % of at least one Cto Chigher olefin derived units, and (b) from 0.1 mol % to 80 mol % of propylene derived units, wherein the higher olefin copolymer has at least 40% allyl chain ends;'}{'sup': '1', 'sub': '4', '(iv) a copolymer having an Mn of 300 g/mol or more (measured by H NMR), and comprises (a) from 80 mol % to 99.9 mol % of at least one Colefin derived unit, (b) from 0.1 mol % to 20 ...

Hydrohalogenation Of Vinyl-Terminated Macromonomers And Functionalized Derivatives

This invention relates to a polyolefin composition comprising one or more of the following formulae: wherein the PO is the residual portion of a vinyl terminated macromonomer (VTM) having had a terminal unsaturated carbon of an allylic chain and a vinyl carbon adjacent to the terminal unsaturated carbon; X is attached to the terminal portion of the VTM to provide PO—X or at the vinylidene carbon of the VTM to provide PO—CHXCH 3 ; and X is Cl, Br, I, or F.

Polypropylene film

Certain films comprising polypropylene and silicone that are uniaxially stretched at stretching temperatures below 70° C. have desirable aesthetic effects.

Method For Purifying Contaminated Polypropylene

A method for purifying reclaimed polypropylene, such as a polypropylene reclaimed from post-consumer use or post-industrial use, is disclosed. The method involves obtaining the reclaimed polypropylene and contacting it at an elevated temperature and pressure with a fluid solvent to produce an extracted reclaimed polypropylene. The extracted reclaimed polypropylene is dissolved in a solvent at an elevated temperature and pressure to produce a polypropylene solution, which is purified at an elevated temperature and pressure by contacting the polypropylene solution with solid media to produce a purer polypropylene solution. A purer polypropylene is then separated from the purer polypropylene solution. 2. The method of claim 1 , wherein the purer polypropylene is separated from said purer polypropylene solution at a temperature from about 0° C. to about 220° C. and a pressure from about 0 psig (0 MPa) to 2 claim 1 ,000 psig (13.79 MPa).3. The method of claim 1 , wherein the reclaimed polypropylene is post-consumer recycle derived polypropylene.4. The method of claim 1 , wherein said reclaimed polypropylene is a polypropylene homopolymer or a primarily polypropylene copolymer.5. The method of claim 1 , wherein said fluid solvent has a standard boiling point less than about 0° C. and greater than about −45° C. and a standard enthalpy change of vaporization of less than about +25 kJ/mol.6. The method of claim 1 , wherein said fluid solvent is selected from the group consisting of olefinic hydrocarbons claim 1 , aliphatic hydrocarbons claim 1 , and mixtures thereof.7. The method of claim 6 , wherein said aliphatic hydrocarbon is selected from the group consisting of C-Caliphatic hydrocarbons and mixtures thereof.8. The method of claim 6 , wherein said aliphatic hydrocarbons and mixtures thereof is comprised of primarily Caliphatic hydrocarbons.9. The method of claim 6 , wherein said fluid solvent consists essentially of Cliquefied petroleum gas.10. The method of claim 8 , ...

Articles of Reclaimed Polypropylene Compositions

An article is disclosed that comprises at least about 95 weight percent reclaimed isotactic polypropylene base resin. The base resin comprises less than about 10 ppm Al, less than about 5 ppm Ti, and less than about 5 ppm Zn. The article is substantially free of odor and the base resin has a contrast ratio opacity of less than about 15%. 1. An article comprising at least about 95 weight percent reclaimed isotactic polypropylene base resin comprising:a. less than about 10 ppm Al;b. less than about 5 ppm Ti; andc. less than about 5 ppm Zn;wherein said article is substantially free of odor and said base resin has a contrast ratio opacity of less than about 15%.2. An article according to claim 1 , wherein the article comprises post-consumer recycle derived reclaimed polypropylene.3. An article according to claim 1 , wherein the article comprises post-industrial recycle derived reclaimed polypropylene.4. An article according to comprising less than about 10 ppm Na.5. An article according to comprising less than about 20 ppm Ca.6. An article according to comprising less than about 2 ppm Cr.7. An article according to comprising less than about 7 ppm Fe.8. An article according to comprising less than about 100 ppb Ni.9. An article according to comprising less than about 50 ppb Cu.10. An article according to comprising less than about 10 ppb Cd.11. An article according to comprising less than about 10 ppb Pb.12. An article according to wherein the article has a contrast ratio opacity of less than about 10%.13. An article according to wherein the article has an odor intensity of less than about 2.14. The article of claim 1 , wherein said article is a fiber.15. The article of claim 1 , wherein said article is a nonwoven web of fibers.16. The article of claim 1 , wherein said article is a film.17. The article of claim 1 , wherein said article is a fluid pervious web formed from film.18. The article of claim 1 , wherein said article is a molded article.19. The article of claim ...

Quinolinyldiamido Transition Metal Complexes, Production and Use Thereof

Quinolinyldiamido transition metal complexes are disclosed for use in alkene polymerization to produce multimodal polyolefins. 4. The complex of claim 3 , wherein Rand Rare independently selected from hydrogen claim 3 , methyl claim 3 , ethyl claim 3 , phenyl claim 3 , isopropyl claim 3 , isobutyl claim 3 , and trimethylsilyl.5. The complex of claim 3 , wherein E is carbon.6. The complex of claim 3 , wherein R claim 3 , R claim 3 , R claim 3 , and Rare independently selected from hydrogen claim 3 , methyl claim 3 , ethyl claim 3 , propyl claim 3 , isopropyl claim 3 , phenyl claim 3 , cyclohexyl claim 3 , fluoro claim 3 , chloro claim 3 , methoxy claim 3 , ethoxy claim 3 , phenoxy claim 3 , and trimethylsilyl.7. The complex of claim 1 , wherein M is Ti claim 1 , Zr claim 1 , or Hf.8. The complex of claim 6 , wherein M is Ti claim 6 , Zr claim 6 , or Hf.9. The complex of claim 1 , wherein R claim 1 , R claim 1 , R claim 1 , R claim 1 , and Rare independently selected from the group consisting of hydrogen claim 1 , hydrocarbyls claim 1 , alkoxy claim 1 , silyl claim 1 , amino claim 1 , substituted hydrocarbyls claim 1 , and halogen.10. The complex of claim 3 , wherein R claim 3 , R claim 3 , R claim 3 , R claim 3 , and Rare independently selected from the group consisting of hydrogen claim 3 , hydrocarbyls claim 3 , alkoxy claim 3 , silyl claim 3 , amino claim 3 , substituted hydrocarbyls claim 3 , and halogen.11. The complex of claim 1 , wherein each L is independently selected from EtO claim 1 , MeOtBu claim 1 , EtN claim 1 , PhNMe claim 1 , MePhN claim 1 , tetrahydrofuran claim 1 , and dimethylsulfide.12. The complex of claim 3 , wherein each L is independently selected from EtO claim 3 , MeOtBu claim 3 , EtN claim 3 , PhNMe claim 3 , MePhN claim 3 , tetrahydrofuran claim 3 , and dimethylsulfide.13. The complex of claim 1 , wherein each X is independently selected from methyl claim 1 , benzyl claim 1 , trimethylsilyl claim 1 , neopentyl claim 1 , ethyl claim 1 , ...

MAGNESIUM COMPOUND, METHOD FOR PRODUCING THE SAME AND USE THEREOF

The present invention relates to a method of producing a magnesium compound represented by the following formula: Mg(OR)(Modifier)wherein Ris CH, where in m is an integer from 2 to 10, and n is 0-2 wherein the method comprises the steps a) providing a mixture comprising magnesium, an initiator and a first alcohol wherein the molar ratio of initiator to magnesium is from 0.0001 to 1; and b) adding a modifier to the mixture obtained in step a) wherein the modifier is selected from the group consisting of alkoxy alcohol, carboxylic acid ester, aliphatic hydrocarbon, aromatic hydrocarbon, ketone, a second alcohol or a mixture thereof, wherein the second alcohol is different from the first alcohol, respective magnesium compound and the use thereof. 1. A method of producing a magnesium compound represented by the following formula:{'br': None, 'sup': '1', 'sub': 2-n', 'n, 'Mg(OR)(Modifier)'}wherein{'sup': '1', 'sub': m', '2m+1, 'Ris CH, wherein m is an integer from 2 to 10, and'}n is 0-2wherein the method comprises the stepsa) providing a mixture comprising magnesium, an initiator and a first alcohol wherein the molar ratio of initiator to magnesium is from 0.0001 to 1; andb) adding a modifier to the mixture ob ed in step a) wherein the modifier is selected from the group consisting of alkoxy alcohol, carboxylic acid ester, aliphatic hydrocarbon, aromatic hydrocarbon, ketone, a second alcohol or a mixture thereof, wherein the second alcohol is different from the first alcohol.2. The method of producing a magnesium compound according to claim 1 , wherein the initiator is a halogen containing compound claim 1 , preferably a halogen claim 1 , most preferred I.3. The method of producing a magnesium compound according to or claim 1 , wherein the step a) comprises adding the magnesium and/or first alcohol to a reaction mixture comprising the initiator and first alcohol portionwise.4. The method of producing a magnesium compound according to claim 3 , wherein the modifier is ...

PROCATALYST FOR POLYMERIZATION OF OLEFINS

The invention relates to a procatalyst for polymerization of olefins. The invention also relates to a process for preparing said procatalyst. Furthermore, the invention is directed to a catalyst system for polymerization of olefins comprising the said procatalyst, a co-catalyst and optionally an external electron donor; a process of preparing polyolefins by contacting an olefin with said catalyst system and to polyolefins obtained or obtainable by said process. The invention also relates to the use of said procatalyst in the polymerization of olefins. 1. A process for preparing a procatalyst for preparing a catalyst composition for olefin polymerization , said process comprising the steps of:{'sup': 4', '4', '4′', '1', '1, 'sub': z', '2-z', '2', 'x', '2-x, 'claim-text': [{'sup': 4', '1, 'sub': '4', 'Rand R′ are the same as Rbeing a linear, branched or cyclic hydrocarbyl group independently selected from alkyl, alkenyl, aryl, aralkyl, alkoxycarbonyl or alkylaryl groups, and one or more combinations thereof; wherein said hydrocarbyl group is substituted or unsubstituted, and optionally contains one or more heteroatoms;'}, {'sup': 4', '1, 'Xand Xare each independently selected from the group of fluoride (F—), chloride (Cl—), bromide (Br—) or iodide (I—); and'}, 'z is in a range of larger than 0 and smaller than 2, being 0 Подробнее

ADHESIVE COMPOSITION COMPRISING AMORPHOUS PROPYLENE-ETHYLENE COPOLYMER AND PROPYLENE POLYMER

Amorphous propylene-ethylene copolymers are described herein that can include high amounts of ethylene and exhibit desirable softening points and needle penetrations. The desirable combinations of softening points and needle penetrations in these propylene-ethylene copolymers allow them to have a broad operating window. Due their broad operating window, the propylene-ethylene copolymers can be utilized in a wide array of applications and products, including hot melt adhesives. 1. An adhesive comprising at least one propylene-ethylene copolymer and at least one high propylene-content polymer , wherein said propylene-ethylene copolymer comprises at least 10 weight percent of ethylene and a softening point of at least 99° C.2. The adhesive of claim 1 , wherein said high propylene-content polymer is selected from the group consisting of propylene homopolymers; metallocene-catalyzed polypropylenes; propylene-ethylene copolymers; metallocene-catalyzed propylene-ethylene copolymers; copolymers of propylene and a linear or branched Cto Colefin; a metallocene-catalyzed copolymer of propylene and a linear or branched Cto Colefin claim 1 , terpolymers of propylene claim 1 , ethylene claim 1 , and a Cto 020 olefin; propylene waxes claim 1 , terpolymers formed from ethylene claim 1 , propylene claim 1 , and a diene (EPDM) claim 1 , or a combination thereof.3. The adhesive of claim 1 , wherein said propylene-ethylene copolymer comprises 12 to 40 weight percent of ethylene.4. The adhesive of claim 1 , wherein said propylene-ethylene copolymer comprises a softening point in the range of 105 to 145° C.5. The adhesive of claim 1 , wherein said propylene-ethylene copolymer comprises a needle penetration in the range of 8 to 75 dmm as measured according to ASTM D5.6. The adhesive of claim 1 , wherein said propylene-ethylene copolymer comprises a crystallinity of less than 30 percent as measured using DSC according to ASTM E 794-85 and a number average molecular weight (Mn) of less than ...

ADHESIVES COMPRISING AMORPHOUS PROPYLENE-ETHYLENE COPOLYMERS

Amorphous propylene-ethylene copolymers are described herein that can include high amounts of ethylene and exhibit desirable softening points and needle penetrations. The desirable combinations of softening points and needle penetrations in these propylene-ethylene copolymers allow them to have a broad operating window. Due their broad operating window, the propylene-ethylene copolymers can be utilized in a wide array of applications and products, including hot melt adhesives. 1. An adhesive comprising a propylene-ethylene copolymer , wherein said propylene-ethylene copolymer comprises at least 10 weight percent of ethylene and a softening point of at least 99° C.2. The adhesive of claim 1 , wherein said propylene-ethylene copolymer comprises 12 to 40 weight percent of ethylene.3. The adhesive of claim 1 , wherein said propylene-ethylene copolymer comprises a softening point in the range of 105 to 145° C.4. The adhesive of claim 1 , wherein said propylene-ethylene copolymer comprises a needle penetration in the range of 8 to 75 dmm as measured according to ASTM D5.5. The adhesive of claim 1 , wherein said propylene-ethylene copolymer comprises a crystallinity of less than 30 percent as measured using DSC according to ASTM E 794-85 and a number average molecular weight (Mn) of less than 25 claim 1 ,000 as determined by gel permeation chromatography.6. The adhesive of claim 1 , wherein said propylene-ethylene copolymer comprises a Brookfield viscosity at 190° C. of less than 30 claim 1 ,000 cps as measured according to ASTM D3236.7. The adhesive of claim 1 , wherein said propylene-ethylene copolymer exhibits a glass transition temperature (Tg) in the range of −60 to 20° C.8. The adhesive of claim 1 , wherein said adhesive comprises:(a) 5 to 95 weight percent of said propylene-ethylene copolymer;(b) not more than 55 weight percent of a propylene polymer or a metallocene-catalyzed polyolefin;(c) not more than 55 weight percent of at least one tackifier;(d) not more than ...

METHOD OF MAKING COEXTRUDED, CROSSLINKED MULTILAYER POLYOLEFIN FOAM STRUCTURES FROM RECYCLED CROSSLINKED POLYOLEFIN FOAM MATERIAL

The present disclosure is directed to a physically crosslinked, closed cell continuous multilayer foam structure comprising at least one foam polypropylene/polyethylene layer with a recycled polyolefin material layer. The multilayer foam structure can be obtained by coextruding a multilayer structure comprising at least one nonrecycled foam composition layer with at least one recycled foam composition layer, irradiating the coextruded structure with ionizing radiation, and continuously foaming the irradiated structure. 1. A method of forming a multilayer structure comprising:shredding a polyolefin foam, agglomerating the shredded foam, and granulating the agglomerated foam to form a recycled, crosslinked polyolefin foam material; and [ polypropylene, polyethylene, or a combination of polypropylene and polyethylene;', 'a first chemical foaming agent; and, 'a first layer comprising, 2.5-25 wt. % the recycled, crosslinked polyolefin foam material;', '75-97.5 wt. % polypropylene, polyethylene, or a combination of polypropylene and polyethylene; and', 'a second chemical foaming agent., 'a second layer on a side of the first layer, the second layer comprising], 'coextruding2. The method of claim 1 , wherein the granules of the recycled claim 1 , crosslinked polyolefin foam material have a width of 3-7 mm.3. The method of claim 1 , further comprising mechanically pulverizing the granules of the recycled claim 1 , crosslinked polyolefin foam material.4. The method of claim 3 , wherein particles of the mechanically pulverized recycled claim 3 , crosslinked polyolefin foam material have a width of 0.2-2 mm.5. The method of claim 1 , further comprising coextruding a third layer on a side of the second layer opposite the first layer claim 1 , the third layer comprising:polypropylene or polyethylene; anda third chemical foaming agent.6. The method of claim 5 , wherein the first layer and the third layer are substantially free of recycled polyolefin material.7. The method of ...

NON-PHTHALATE CATALYST SYSTEM AND ITS USE IN THE POLYMERIZATION OF OLEFINS

This invention relates to a non-phthalate catalyst system for olefin polymerization. The non-phthalate catalyst system comprises (a) a solid Ziegler-Natta catalyst composition comprising a transition metal, a Group 2 metal, and one or more halogens; and one or more internal electron donor compounds; and (b) one or more external electron donor compounds. 2. The non-phthalate catalyst system of claim 1 , wherein the transition metal is titanium claim 1 , the Group 2 metal is magnesium claim 1 , and the halogen is chloride.3. The non-phthalate catalyst system of claim 1 , wherein the catalyst system further comprises an organoaluminum cocatalyst selected from the group consisting of alkylaluminum claim 1 , alkylaluminum hydride claim 1 , alkylaluminum halide claim 1 , and alkylaluminum alkoxide.5. The non-phthalate catalyst system of claim 4 , wherein the diether compound is selected from the group consisting of 9 claim 4 ,9-bis(methoxymethyl)fluorene; 9 claim 4 ,9-bis(methoxymethyl)-2 claim 4 ,3 claim 4 ,6 claim 4 ,7-tetramethylfluorene; 9 claim 4 ,9-bis(methoxymethyl)-2 claim 4 ,3 claim 4 ,4 claim 4 ,5 claim 4 ,6 claim 4 ,7-hexafluorofluorene; 9 claim 4 ,9-bis(methoxymethyl)-2 claim 4 ,3-benzofluorene; 9 claim 4 ,9-bis(methoxymethyl)-2 claim 4 ,3 claim 4 ,6 claim 4 ,7-dibenzofluorene; 9 claim 4 ,9-bis(methoxymethyl)-2 claim 4 ,7-diisopropylfluorene; 9 claim 4 ,9-bis(methoxymethyl)-1 claim 4 ,8-dichlorofluorene; 9 claim 4 ,9-bis(methoxymethyl)-2 claim 4 ,7-dicyclopentylfluorene; 9 claim 4 ,9-bis(methoxymethyl)-1 claim 4 ,8-difluorofluorene; 9 claim 4 ,9-bis(methoxymethyl)-1 claim 4 ,2 claim 4 ,3 claim 4 ,4-tetrahydrofluorene; 9 claim 4 ,9-bis(methoxymethyl)-1 claim 4 ,2 claim 4 ,3 claim 4 ,4 claim 4 ,5 claim 4 ,6 claim 4 ,7 claim 4 ,8-octahydrofluorene; and 9 claim 4 ,9-bis(methoxymethyl)-4 -tert-butylfluorene.6. The non-phthalate catalyst system of claim 5 , wherein the diether compound is 9 claim 5 ,9-bis(methoxymethyl)fluorene.7. The non-phthalate catalyst system ...

ELECTRON DONORS FOR ZIEGLER-NATTA PRECATALYST PREPARATION AND CATALYST SYSTEM FOR OLEFIN POLYMERIZATION

A solid precatalyst component for use in olefmic polymerization, includes titanium, magnesium, and an electron donor Ccompound; wherein: the electron donor compound is at least one compound represented by Formula (I). 2. The solid precatalyst component of claim 1 , wherein E comprises silicon (Si) or germanium (Ge) claim 1 , with the proviso that:{'sup': 1', '2', '3', '4, 'when E is Si, two or more of R, R, R, and Rare cyclized to form a hydrocarbyl ring structure optionally interrupted or substituted by one or more functional groups selected from the group consisting of ether, ester, amide, carbonate, halogens, phosphate, sulfate, sulfide, sulfoxide, sulfone, carbamate, and a combination of any two or more thereof.'}3. The solid precatalyst component of claim 1 , wherein:{'sup': 1', '2', '3', '4, 'R, R, R, and Rare independently an alkyl, cycloalkyl, aryl, heteroaryl, or aralkyl group, optionally interrupted or substituted by one or more functional groups selected from the group consisting of ether, ester, amide, carbonate, halogens, phosphate, sulfate, sulfide, sulfoxide, sulfone, carbamate, and a combination of any two or more thereof;'}with the proviso that:{'sup': 1', '2', '3', '4, 'at least one of R, R, R, or Ris interrupted or substituted by one or more functional groups selected from the group consisting of ether, ester, amide, carbonate, halogens, phosphate, sulfate, sulfide, sulfoxide, sulfone, carbamate, and a combination of any two or more thereof.'}4. The solid precatalyst component of claim 1 , wherein:{'sup': 1', '2, 'sub': 1', '20, 'Rand Rare each independently a linear, branched, or cyclic C-Chydrocarbyl group interrupted by one or more functional groups selected from the group consisting of ester, amide, carbonate, carbamate, and a combination of any two or more thereof.'}6. The solid precatalyst component of claim 5 , wherein:{'sup': 3', '4, 'Rand Rare each independently an alkyl, cycloalkyl, or aryl group; or'}{'sup': 3', '4, 'sub': 4', '6, 'Rand ...

THERMOPLASTIC ELASTOMER FOR CARBON FIBER REINFORCED PLASTIC BONDING LAMINATION

The present invention relates to a thermoplastic elastomer for carbon fiber reinforced plastic bonding lamination, which is contained in a layer to be laminated on a layer composed of a carbon-fiber reinforced plastic, wherein the thermoplastic elastomer for carbon fiber reinforced plastic bonding lamination contains a styrene-based thermoplastic elastomer and a polymer modified by an α,β-unsaturated carboxylic acid, the styrene-based thermoplastic elastomer contains components (a) to (d), and a concentration of an α,β-unsaturated carboxylic acid derived from the polymer modified by the α,β-unsaturated carboxylic acid is 0.01 to 10% by mass. 1. A thermoplastic elastomer for carbon fiber reinforced plastic bonding lamination , which is contained in a layer to be laminated on a layer composed of a carbon-fiber reinforced plastic ,wherein the thermoplastic elastomer for carbon fiber reinforced plastic bonding lamination contains a styrene-based thermoplastic elastomer and a polymer modified by an α,β-unsaturated carboxylic acid,the styrene-based thermoplastic elastomer contains the following components (a) to (d), anda concentration of an α,β-unsaturated carboxylic acid derived from the polymer modified by the α,β-unsaturated carboxylic acid is 0.01 to 10% by mass:component (a): a hydrogenated block copolymer which is a hydrogenated product of an (A)-(B) block copolymer and/or an (A)-(B)-(A) block copolymer composed of a vinyl aromatic compound polymer block (A) and a conjugated diene polymer block (B), wherein at least 80% of double bonds of the conjugated diene moiety of the conjugated diene polymer block (B) is saturated through hydrogenation, and a weight average molecular weight thereof is 80,000 to 1,000,000;component (b): a softening agent for hydrocarbon-based rubber;component (c): a hydrogenated block copolymer composed of an (A)-(C)-(A) triblock copolymer which is composed of a vinyl aromatic compound polymer block (A) and a conjugated diene polymer block (C ...

CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS

A solid catalyst component for the polymerization of olefins made from or containing Mg, Ti, Cl and at least an electron donor compound which is the reaction product obtained by bringing into contact a Mg compound and a Ti compound having at least a Ti-halogen bond with an electron donor selected from diphenol derivatives. 2. The solid catalyst component according to claim 1 , wherein Rgroups are selected from the group consisting of hydrogen and linear C-Calkyl groups.3. The solid catalyst component according to claim 2 , wherein Rgroups are selected from the group consisting of hydrogen and methyl.4. The solid catalyst component according to claim 1 , wherein X is a chlorine monosubstituted phenyl group.5. The solid catalyst component according to claim 4 , wherein the chlorine atom is in ortho position.6. The solid catalyst component according to claim 3 , wherein which Ris hydrogen and the chlorine is in ortho position.7. The solid catalyst component according to claim 1 , wherein X is a phenyl group containing two or more chlorines.8. The solid catalyst component according to claim 7 , wherein at least one of the chlorines is in ortho position and the remaining chlorine(s) is(are) in meta or para position.9. The solid catalyst component according to claim 1 , wherein at least one of the R groups is different from hydrogen and selected from halogen or C-Chydrocarbon groups.10. The solid catalyst component according to claim 9 , wherein at least 4 of the R groups are different from hydrogen.11. The solid catalyst component according to claim 5 , wherein R groups different from hydrogen are selected from C-Calkyl groups.12. The solid catalyst component according to further comprising an additional electron donor compound selected from esters of benzoic acids claim 1 , and wherein the esters of benzoic acid are optionally substituted with halogen or C-Chydrocarbon groups on the phenyl ring.13. A catalyst for the polymerization of olefins CH═CHR claim 1 , wherein R ...

HYDROHALOGENATION OF VINYL TERMINATED POLYMERS AND THEIR FUNCTIONALIZED DERIVATIVES FOR FOULING MITIGATION IN HYDROCARBON REFINING PROCESSES

A compound useful for reducing fouling in a hydrocarbon refining process is provided. A method for preparing the compound includes hydrohalogenating a polymer having a vinyl chain end to obtain a halogen-containing terminal group, and reacting the terminal group with a polyamine. Methods of using the compound and compositions thereof are also provided.

NEAR INFRARED (NIR) LASER PROCESSING

A method of near infrared (NIR) laser processing a resin based article includes the steps of applying a composition including a specific optothermal converting agent on a surface of the article, and exposing at least part of the applied optothermal converting agent with a NIR laser. The specific optothermal converting has an improved stability towards the environment and therefore renders the laser processing method more reliable. 115-. (canceled)17: The method according to claim 16 , wherein the laser processing is selected from the group consisting of laser cutting claim 16 , laser perforating claim 16 , and laser welding.18: The method according to claim 16 , wherein the optothermal converting agent is imagewise applied onto the surface of the resin based article.19: The method according to claim 18 , wherein the optothermal converting agent is imagewise applied onto the surface of the resin based article by a printing method selected from the group consisting of intaglio printing claim 18 , screen printing claim 18 , flexographic printing claim 18 , offset printing claim 18 , inkjet printing claim 18 , tampon printing claim 18 , valve jet printing claim 18 , and gravure offset printing.20: The method according to claim 19 , wherein the optothermal converting agent is applied by inkjet printing.21: The method according to claim 16 , wherein the optothermal converting agent is applied in a pattern including continuous lines claim 16 , a series of spots claim 16 , or a combination thereof.22: The method according to claim 16 , wherein the resin based article includes a polymer selected from the group consisting of a polyester claim 16 , a polyamide claim 16 , and a polyolefin.23: The method according to claim 16 , wherein the resin based article includes a thermoplastic polymer.24: The method according to claim 23 , wherein the thermoplastic polymer is selected from the group consisting of polyethylene claim 23 , polypropylene claim 23 , polyethylene terephthalate ...

Silyl-Bridged Pyridylamide Catalysts and Methods Thereof

The present disclosure relates to silyl-bridged pyridylamide transition metal complexes and catalyst systems including silyl-bridged pyridylamide transition metal complexes and their use in polymerization processes to produce polyolefin polymers, such as polyethylene polymers and polypropylene polymers, from catalyst systems including one or more olefin polymerization catalysts, at least one activator, and an optional support. 4. The catalyst compound of claim 1 , wherein M is hafnium.5. The catalyst compound of claim 1 , wherein Ris aryl.6. The catalyst compound of claim 5 , wherein Ris 2 claim 5 ,6-disubstituted aryl.7. The catalyst compound of claim 6 , wherein Ris 2 claim 6 ,6-diisopropylphenyl.8. The catalyst compound of claim 6 , wherein Ris 2 claim 6 ,6-dimethylphenyl.9. The catalyst compound of claim 1 , wherein R claim 1 , R claim 1 , and Ris hydrogen.10. The catalyst compound of claim 1 , wherein R claim 1 , R claim 1 , R claim 1 , R claim 1 , Rand Rare independently hydrogen or C-Calkyl.11. The catalyst compound of claim 10 , wherein R claim 10 , R claim 10 , R claim 10 , R claim 10 , Rand Rare hydrogen.12. The catalyst compound of claim 1 , wherein Rand Rare joined to form substituted phenyl or unsubstituted phenyl.13. The catalyst compound of claim 12 , wherein Rand Rare joined to form unsubstituted phenyl.14. The catalyst compound of claim 1 , wherein Rand Rare independently hydrogen claim 1 , hydrocarbyl claim 1 , or Rand Rare joined to form a substituted hydrocarbyl ring or unsubstituted hydrocarbyl ring having 5 claim 1 , 6 claim 1 , 7 claim 1 , or 8 ring atoms.15. The catalyst compound of claim 14 , wherein Rand Rare phenyl.16. The catalyst compound of claim 14 , wherein Rand Rare independently methyl or ethyl.17. The catalyst compound of claim 14 , wherein Rand Rare joined to form substituted or unsubstituted hydrocarbyl containing ring having 4 claim 14 , 5 claim 14 , 6 or 7 ring atoms including Si claim 14 , such as a substituted or ...

PROCESS FOR PRE-CONTACTING CATALYST COMPONENTS EX-REACTOR TO PRODUCE AMORPHOUS POLY ALPHA-OLEFINS

A continuous process for pre-contacting coordination polymerization catalyst components with each other before they are introduced into a polymerization reactor at 130 degrees Fahrenheit to 200 degrees Fahrenheit, where the activated coordination catalyst is contacted with at least one monomer to produce amorphous poly alpha olefin (APAO), the process involving blending a Ziegler-Natta pro-catalyst with a liquid carrier forming a Ziegler-Natta pro-catalyst slurry and flowing a co-catalyst mixture into the Ziegler-Natta pro-catalyst slurry continuously in a pre-contacting device, forming an activated Ziegler-Natta catalyst; continuously injecting the activated Ziegler-Natta catalyst into the heated polymerization reactor while simultaneously, and continuously, injecting propylene monomer and any other alpha-olefin monomers, and hydrogen gas for molecular weight control, initiating an exothermic reaction forming a monomer-polymer-catalyst slurry then continuously stirring the monomer-polymer-catalyst slurry forming an amorphous poly alpha olefin with a saturated backbone. 1. A continuous process for pre-contacting coordination polymerization catalyst components with each other and at least one monomer to produce amorphous poly alpha olefin (APAO) , the continuous process comprising:a. maintaining a polymerization reactor at a temperature from 130 degrees Fahrenheit to 200 degrees Fahrenheit;b. external to the polymerization reactor, blending a Ziegler-Natta pro-catalyst with a liquid carrier, the liquid carrier having a viscosity from 150 centiStoke (cSt) to 400 cSt as measured at 40 degrees Celsius, the pro-catalyst to liquid carrier being mixed in a ratio of 1 lbs:4 lbs to 1 lbs:20 lbs forming a Ziegler-Natta pro-catalyst slurry; (i) a co-catalyst, wherein the co-catalyst is at least one of a neat co-catalyst and a diluted co-catalyst, the co-catalyst being an alkylated metal from Group 13 of the periodic table; and', '(ii) optionally, a diluted external electron ...

CATALYSTS FOR OLEFIN POLYMERIZATION

New bisindenyl ligand complexes and catalysts comprising those complexes. The invention is directed to improving the manufacturing of specific C1-symmetric bisindenyl complexes by modifying one of the indenyl ligands in order to improve the selectivity of the complex synthesis towards the desired anti-isomer, increase the yield and simplify the purification of the complex. The invention also relates to the use of the new bisindenyl metallocene catalysts for the production of polypropylene homopolymers or propylene copolymers. 2. A metallocene catalyst complex according to claim 1 , whereinMt is Zr,{'sub': '1-6', 'each X is independently a hydrogen atom, a halogen atom, Calkoxy group or an R′ group,'}{'sub': '1-6', 'where R′ is a Calkyl, phenyl or benzyl group.'}{'sub': 1', '20', '6', '20', '7', '20', '7', '20, 'each R is independently a C-C-hydrocarbyl, C-C-aryl, C-C-arylalkyl or C-C-alkylaryl,'}{'sup': 1', '7', '7, 'sub': 2', '1-6', '6-10, 'each Rindependently are the same or can be different and are a CH—Rgroup, with Rbeing H or linear or branched C-alkyl group, Caryl group,'}{'sup': '2', 'sub': 2', '2', '1-4, 'each Ris independently a —CH═, —CY═, —CH—, —CHY— or —CY— group, wherein Y is a Chydrocarbyl group and where n is 3-4,'}{'sup': 3', '4', '3', '4, 'sub': 1', '6', '6-20, 'each Rand Rare independently the same or can be different and are hydrogen, a linear or branched C-C-alkyl group or Caryl groups, whereby at least one Rper phenyl group and at least one Ris not hydrogen,'}{'sup': '5', 'sub': 1', '6', '6-20, 'Ris a linear or branched C-Calkyl group or Caryl group and'}{'sup': 6', '8', '3, 'sub': 3', '1', '4, 'Ris a C(R)group, with Rbeing a linear or branched C-Calkyl group.'}3. A metallocene catalyst complex according to or claim 1 , whereinMt is Zr,each X is independently a chlorine, benzyl or a methyl group,{'sub': 1', '10', '6', '10, 'each R is independently a C-C-hydrocarbyl or C-C-aryl group,'}{'sup': 1', '7', '7, 'sub': 2', '1', '3, 'both Rare the same ...

Asymmetrical Ligands

A ligand of formula (I′) 2. A ligand as claimed in in which Rand R are hydrogen and Rand R are the same.3. A ligand as claimed in claim 1 , in which R is a Chydrocarbyl group containing one or more heteroatoms from groups 14-16 and optionally substituted by one or more halo atoms claim 1 , preferably R is Z′R wherein Z′ is O or S; and R is a Chydrocarbyl group optionally substituted by one or more halo groups.4. A ligand as claimed in claim 1 , wherein Ar and Ar′ are different.9. A ligand as claimed in claim 1 , wherein the ligand is selected from the group consisting of:(6-tert-Butyl-5-methoxy-2-methyl-4-phenyl-1H-inden-1-yl)-(6-tert-butyl-2-methyl-4-phenyl-1H-inden-1-yl)dimethylsilane;(6-tert-Butyl-5-methoxy-2-methyl-4-phenyl-1H-inden-1-yl)[4-(4-tert-butylphenyl)-2-methyl-1H-inden-1-yl]dimethylsilane;[6-tert-Butyl-4-(3,5-di-tert-butylphenyl)-2-methyl-1H-inden-1-yl]-(6-tert-butyl-5-methoxy-2-methyl-4-phenyl-1H-inden-1-yl)dimethylsilane;[4-(4-tert-Butylphenyl)-2-methyl-1H-inden-1-yl][6-isopropyl-2-methyl-5-(pentafluoro phenoxy)-4-phenyl-1H-inden-1-yl]dimethylsilane;(2-methyl-4-phenyl-5-methoxy-6-tert-butyl-1H-inden-1-yl)[2,7-dimethyl-4-(3,5-di-tert-butylphenyl)-1H-inden-1-yl]dimethylsilane;(2-methyl-4-phenyl-5-methoxy-6-tert-butyl-1H-inden-1-yl)[2,4-dimethyl-7-(3,5-di-tert-butylphenyl)-1H-inden-1-yl]dimethyl silane;[2-Methyl-4-phenyl-5-methoxy-6-tert-butyl-1H-inden-1-yl]-[2-methyl-4-(3,5-di-tertbutylphenyl)-7-methoxy-1H-inden-1-yl]dimethylsilane;[6-tert-Butyl-4-(4-tert-butylphenyl)-5-methoxy-2-methyl-1H-inden-1-yl][4-(4-tert-butylphenyl)-2-methyl-1H-inden-1-yl]dimethylsilane;[6-tert-Butyl-4-(3,5-di-tert-butylphenyl)-5-methoxy-2-methyl-1H-inden-1-yl][4-(4-tert-butylphenyl)-2-methyl-1H-inden-1-yl]dimethylsilane; or(6-tert-Butyl-5-isobutoxy-2-methyl-4-phenyl-1H-inden-1-yl)[4-(4-tert-butylphenyl)-2-methyl-1H-inden-1-yl]dimethylsilane. This is a divisional of U.S. patent application Ser. No. 14/131,588, having a filing date of Jul. 6, 2012 (PCT filing date) and a 371(c) ...

Bimodal Propylene Polymers and Sequential Polymerization

This invention relates to high porosity (≧15%) and/or low pore diameter (PD<165 μm) propylene polymers and propylene polymerization processes using single site catalyst systems with supports having high surface area (SA≧400 m/g), low pore volume (PV≦2 mL/g), a specific mean pore diameter range (PD=1-20 nm), and high average particle size (PS≧30 μm). 122.-. (canceled)23. A propylene polymer comprising:at least 50 mol % propylene;a 1% Secant flexural modulus of at least 1000 MPa, determined according to ASTM D 790 (A, 1.0 mm/min);{'sup': '13', 'more than 5 and less than 200 regio defects per 10,000 propylene units, determined by C NMR;'}a multimodal molecular weight distribution;if comonomer is present, a CDBI of 50% or more; anda matrix having a porosity of 15 percent or more, and median pore diameter less than 165 m, as determined by mercury intrusion porosimetry.24. The propylene polymer of claim 23 , wherein the median pore diameter is from 0.1 up to 160 μm.25. The propylene polymer of claim 23 , further comprising:a total propylene content of at least 75 wt %;if comonomer is present, a total co-monomer content from about 3 wt % up to about 25 wt %;if comonomer is present, a CDBI of at least 60%;a matrix porosity of at least 35%;a matrix median pore diameter greater than 8 m and less than 150 m, as determined by mercury intrusion porosimetry;at least 50% isotactic pentads;{'sup': '13', 'more than 10 regio defects per 10,000 propylene units, determined by C NMR;'}a 1% Secant flexural modulus of at least 1800 MPa;a melting point (Tm, DSC peak second melt) of at least 145° C.;an Mw/Mn as measured by GPC-DRI of greater than 1 up to 5;an overall Mw/Mn of greater than 1 to 20 and at least one mode having an Mw/Mn of greater than 1 to 5;at least 95% by volume having a particle size greater than 150 am up to 10 mm;a melt flow rate (MFR, ASTM 1238, 230° C., 2.16 kg) from about 0.1 dg/min up to about 300 dg/min;an Mw (as measured by GPC-DRI) from 50,000 to 1,000,000 g/mol; ...

Process Using Substituted Metallocene Catalysts and Products Therefrom

This invention relates to a process to produce propylene polymer using a bridged hafnium transition metal metallocene catalyst compounds having two indenyl ligands substituted at the 4 positions with a Cto Calkyl, where the 3 positions are hydrogen (assuming the bridge position is counted as the one position) and the bridging atom is carbon or silicon which is incorporated into a cyclic group comprising 3, 4, 5, or 6 silicon and/or carbon atoms that make up the cyclic ring, where the propylene polymer has 1) greater than 40% vinyl chain ends, relative to the total unsaturated chain ends, 2) a Tm of 70° C. or more; an Mw of 3000 to 300,000 g/mol, and 4) a g′of 0.90 or less. 2. The process of claim 1 , wherein step (i) occurs at a temperature of greater than 60° C.3. The process of claim 1 , wherein the polymer produced has 1) greater than 70% vinyl chain ends claim 1 , relative to total unsaturated chain ends claim 1 , and 2) an Mw of 3000 to 200 claim 1 ,000 g/mol.4. The process of claim 1 , wherein the polymer produced is isotactic polypropylene having a Tm of 115° C. or more.5. The process of claim 1 , wherein the polymer produced is a propylene-ethylene copolymer containing 30 wt % or less of ethylene.6. The process of claim 1 , wherein the polyolefin produced has a g′of 0.85 or less.7. The process of claim 1 , wherein the polyolefin produced has at least X % vinyl chain ends (relative to total unsaturations as measured by H NMR claim 1 , where X=47.8* g′+45.1.8. The process of wherein R claim 1 , Rand Rare claim 1 , independently claim 1 , selected from the group consisting of methyl claim 1 , ethyl claim 1 , propyl claim 1 , butyl claim 1 , pentyl claim 1 , heptyl claim 1 , hexyl claim 1 , octyl claim 1 , nonyl claim 1 , decyl and an isomers thereof.9. The process of wherein Rand Rare claim 1 , independently claim 1 , a Cto Calkyl.10. The process of wherein Rand Rare claim 1 , independently claim 1 , a Cto Calkyl.11. The process of wherein each X is claim 1 , ...

A ZIEGLER-NATTA CATALYST SYSTEM WITH SELF-EXTINGUISHING PROPERTIES SUITABLE FOR OLEFIN POLYMERIZATION

The present disclosure relates to a Ziegler-Natta catalyst system with self-extinguishing properties suitable for olefin polymerization. The catalyst system of the present disclosure comprises a pro-catalyst, a co-catalyst, and an external donor having a mixture of a selectivity control agent and an activity control agent. The catalyst system of the present disclosure is adapted to prevent the temperature of the polymerization reaction to go beyond the softening temperature of the polymer, thereby exhibiting the self-extinguishing properties. 1. A Ziegler-Natta catalyst system with self-extinguishing properties suitable for olefin polymerization , said catalyst system being characterized by having a fluorine derivative of long chain fatty acid with C-Ccarbon atoms an an activity limiting agent.3. The Ziegler-Natta catalyst system as claimed in claim 2 , wherein said activity limiting agent is fluorine derivative of long chain fatty acid selected from the group consisting of trifluoro ethyl myristate and trifluoro ethyl palmitate.4. The Ziegler-Natta catalyst system as claimed in claim 1 , wherein a selectivity control agent is mixed with said activity limiting agent in a weight ratio in the range of 1:5 to 1:10.5. A Ziegler-Natta catalyst system with self-extinguishing properties suitable for olefin polymerization as claimed in claim 1 , wherein said catalyst system comprises:a. a pro-catalyst comprising a magnesium compound, a titanium compound, and an internal donor;b. an organo-aluminum co-catalyst; andc. an external donor being a mixture of a selectivity control agent and said activity limiting agent.6. The Ziegler-Natta catalyst system as claimed in claim 5 , wherein said internal donor is at least one compound selected from the group consisting of monoester claim 5 , diester claim 5 , diether claim 5 , carbonate claim 5 , urea claim 5 , thiourea claim 5 , ether-ester claim 5 , succinates claim 5 , malonates claim 5 , typically diisobutyl phthalate.7. The ...

RESIN COMPOSITE MATERIAL AND METHOD FOR PRODUCING RESIN COMPOSITE MATERIAL

To provide a resin composite material in which aggregation of silane compounds in the resin is suppressed and the linear expansion coefficient is lowered, and a method for producing the resin composite material. A resin composite material containing a resin and a silane compound having a structure of the formula (1), wherein a molecular chain of the resin and a molecular chain of the silane compound form an IPN structure or a semi-IPN structure, and a method for producing a resin composite material including a step of mixing a resin and a silane compound to obtain a resin composition and an IPN structure formation step of allowing a plurality of the silane compounds contained in the resin composition to be condensed with each other. Each of Rs in the formula (1) is independently selected from the group consisting of hydrogen, halogen and an arbitrary organic functional group and at least one thereof is a reactive organic functional group. x represents 1 or 1.5. n represents an integer of 100 or more and 10000 or less. 3. The resin composite material according to claim 1 , wherein each of Rs in the formula (1) is independently selected from the group consisting of hydrogen claim 1 , chlorine claim 1 , a silyl claim 1 , a siloxy claim 1 , an alkoxy claim 1 , a vinyl claim 1 , an aryl claim 1 , an alkyl claim 1 , an alkylamine claim 1 , an ether claim 1 , an ester claim 1 , an amine claim 1 , an amide claim 1 , a thiol claim 1 , a methacryl claim 1 , an acryl claim 1 , an epoxy claim 1 , a ureido claim 1 , a mercapto claim 1 , a sulfide and an isocyanate.4. The resin composite material according to claim 1 , wherein at least one of Rs in the formula (1) is a reactive organic functional group selected from the group consisting of a vinyl claim 1 , an alkylamine claim 1 , an amine claim 1 , a methacryl claim 1 , an acryl claim 1 , an epoxy claim 1 , a ureido claim 1 , a mercapto claim 1 , a sulfide and an isocyanate.5. The resin composite material according to claim 1 , ...

CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS

A solid catalyst component for the (co)polymerization of olefins CH═CHR, in which R is a hydrocarbyl radical with 1-12 carbon atoms, optionally in mixture with ethylene, comprising Ti, Mg, Cu, Cl, and an electron donor compound characterized by the fact that the Cu/Ti weight ratio is lower than 0.5. 1. A solid catalyst component for the (co)polymerization of olefins CH═CHR , in which R is a hydrocarbyl radical with 1-12 carbon atoms , optionally in mixture with ethylene , comprising Ti , Mg , Cu , Cl , and an electron donor compound characterized by the fact that the Cu/Ti weight ratio is lower than 0.5.2. The solid catalyst component of in which the Cu/Ti weight ratio ranges from 0.1 to 0.45.3. The solid catalyst component of in which the amount of Cu is lower than 2% by weight based on the total weight of solid catalyst component.4. The solid catalyst component of in which the Cu/Mg molar ratio ranges from 0.001 to 0.05.5. The solid catalyst component of in which the Cu atoms derive from one or more Cu compounds not having Cu-carbon bonds.6. The solid catalyst component of in which the Cu compounds can be selected from Cu halides claim 5 , Cu acetate claim 5 , Cu oxide.7. The solid catalyst component of in which the Cu atoms have valence +2.8. The solid catalyst component of in which electron donor compound is selected from esters claim 1 , ethers claim 1 , amines claim 1 , silanes and ketones or mixtures thereof.10. A catalyst for the polymerization of olefins CH═CHR claim 1 , in which R is a hydrocarbyl radical with 1-12 carbon atoms claim 1 , optionally in mixture with ethylene claim 1 , comprising the product obtained by contacting:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, '(i) the solid catalyst component according to ;'}(ii) an alkylaluminum compound and,(iii) optionally an external electron donor compound.11. The catalyst of wherein the alkyl-Al compound (ii) is a trialkyl aluminum compound.12. The catalyst of in which the external donor compounds ...

Heterocyclic Amido Transition Metal Complexes, Production and Use Thereof

Heterocyclic amido transition metal complexes are disclosed for use in alkene polymerization to produce polyolefins, preferably multimodal polyolefins. The heterocyclic amido transition metal complexes are formed by the chelation of a tridentate dianionic heterocyclic amido ligand to a group 3, 4, or 5 transition metal, where the tridentate ligand coordinates to the metal forming a five-membered ring and an eight-membered ring. 1. A transition metal compound formed by the chelation of a tridentate dianionic heterocyclic amido ligand to a group 3 , 4 , or 5 transition metal , where the tridentate ligand coordinates to the metal forming a five-membered ring and an eight-membered ring.3. The complex of wherein Qis CH claim 2 , CHMe claim 2 , CHEt claim 2 , CHBu claim 2 , CH(pentyl) claim 2 , CH(hexyl) claim 2 , CH(hexyl) claim 2 , CH(octyl) claim 2 , CH(nonyl) claim 2 , CH(decyl) claim 2 , or CHPh claim 2 , O claim 2 , N(Ph) claim 2 , N(Mesityl) claim 2 , N(2 claim 2 ,6-dimethylphenyl) claim 2 , N(2 claim 2 ,6-diethylphenyl) claim 2 , N(2-methylphenyl) claim 2 , N(2-ethylphenyl) claim 2 , N(butyl) claim 2 , N(propyl) claim 2 , N(isopropyl) claim 2 , N(cyclohexyl) claim 2 , N(t-butyl) claim 2 , or N(2 claim 2 ,6-diisopropylphenyl).4. The complex of claim 2 , wherein Qand Y are each independently CHor CH(hydrocarbyl) claim 2 , where each hydrocarbyl groups contains 1 to 20 carbon atoms.5. The complex of wherein Qis not CH claim 2 , CH(hydrocarbyl) claim 2 , or C(hydrocarbyl) claim 2 , where the hydrocarbyl groups are independently selected from groups that contain 1 to 20 carbon atoms7. The complex of claim 2 , wherein M is Ti claim 2 , Zr claim 2 , or Hf.9. The complex of claim 2 , wherein Ris selected from phenyl groups that are substituted with 0 claim 2 , 1 claim 2 , 2 claim 2 , 3 claim 2 , 4 claim 2 , or 5 substituents selected from the group consisting of F claim 2 , Cl claim 2 , Br claim 2 , I claim 2 , CF claim 2 , NO claim 2 , alkoxy claim 2 , dialkylamino claim ...

Phenolate Transition Metal Complexes, Production and Use Thereof

Phenolate ligands and transition metal complexes are disclosed for use in alkene polymerization, with optional chain transfer agent, to produce polyolefins. 4. The transition metal complex of claim 2 , wherein Rand Rare carbazolyl claim 2 , substituted carbazolyl claim 2 , indolyl claim 2 , substituted indolyl claim 2 , indolinyl claim 2 , substituted indolinyl claim 2 , imidazolyl claim 2 , substituted imidazolyl claim 2 , indenyl claim 2 , substituted indenyl claim 2 , indanyl claim 2 , substituted indanyl claim 2 , fluorenyl claim 2 , or substituted fluorenyl claim 2 , preferably Rand Rare the same.5. The transition metal complex of claim 2 , wherein Q is a neutral donor group comprising at least one atom from Group 15 or Group 16 and the -(-Q-R-Q-)- fragment can form a substituted or unsubstituted heterocycle which may or may not be aromatic and may have multiple fused rings.6. The transition metal complex of claim 2 , wherein each R claim 2 , R claim 2 , R claim 2 , R claim 2 , R claim 2 , R claim 2 , R claim 2 , and Ris independently a hydrogen claim 2 , a C-Chydrocarbyl radical claim 2 , a substituted hydrocarbyl radical claim 2 , a heteroatom claim 2 , or a heteroatom-containing group claim 2 , or may independently form a Cto Ccyclic or polycyclic ring structure with R claim 2 , R claim 2 , or R claim 2 , or a combination thereof.7. The transition metal complex of claim 2 , wherein M is Hf or Zr.8. The transition metal complex of claim 2 , wherein Q is O claim 2 , N claim 2 , S claim 2 , or P.9. The transition metal complex of claim 2 , wherein Rand Rare carbazolyl or substituted carbazolyl.10. The transition metal complex of claim 2 , wherein Ris a divalent C-Chydrocarbyl radical or divalent substituted hydrocarbyl radical comprising a portion that comprises a linker backbone comprising from 1 to 18 carbon atoms linking or bridging between the two Q groups.11. A catalyst system comprising activator and the complex of .12. The catalyst system of claim 11 , ...

CRIMPED MULTI-COMPONENT FIBERS

Disclosed is a curly fiber having a fiber centroid and comprising a first region having a first centroid and a second region wherein the first region comprises an ethylene/alpha olefin interpolymer composition in an amount of at least 75 weight percent based on total weight of the first region and wherein the ethylene/alpha olefin interpolymer composition is characterized by a low temperature peak and a high temperature peak on an elution profile via improved comonomer composition distribution (ICCD) procedure, and a full width at half maximum of the high temperature peak is less than 6.0° C. and the second region is a material comprising a polymer which is different from the ethylene/alpha-olefin interpolymer of the first region and wherein the regions are arranged such that at least one of the first centroid and the second centroid is not the same as the fiber centroid. 1. A curly fiber having a fiber centroid and comprising a first region having a first centroid and a second region having a second centroid wherein the first region comprises an ethylene/alpha olefin interpolymer composition in an amount of at least 75 weight percent based on total weight of the first region and wherein the ethyl ene/alpha olefin interpolymer composition is characterized by a low temperature peak and a high temperature peak on an elution profile via improved comonomer composition distribution (ICCD) procedure , and a full width at half maximum of the high temperature peak is less than 6.0° C. and the second region is a material comprising a polymer which is different from the ethyl ene/alpha-olefin interpolymer of the first region and wherein the regions are arranged such that at least one of the first centroid and the second centroid is not the same as the fiber centroid.2. The fiber of wherein the ethyl ene/alpha olefin interpolymer composition is further characterized by one or more of: a density in the range of 0.930 to 0.965 g/cm3 claim 1 , a melt index (I2) in the range of ...

Processes for Reducing the Loss of Catalyst Activity of a Ziegler-Natta Catalyst

A process for reducing the loss of catalyst activity of a Ziegler-Natta catalyst is provided. The process includes preparing a Ziegler-Natta (ZN) catalyst by contacting the ZN catalyst with at least one aluminum alkyl compound to produce a reduced ZN catalyst and storing and/or transporting the reduced ZN catalyst for at least 20 days at a temperature of 25° C. or less. The reduced ZN catalyst may be used for polymerizing polyolefin polymers. 1. A process for reducing the loss of catalyst activity of a Ziegler-Natta catalyst , the process comprising:a) preparing a Ziegler-Natta (ZN) catalyst by contacting the ZN catalyst with at least one aluminum alkyl compound to produce a reduced ZN catalyst;b) optionally, drying the reduced ZN catalyst; andc) storing and/or transporting the reduced ZN catalyst for at least 20 days at a temperature of 25° C. or less.2. (canceled)3. The process of claim 1 , wherein the reduced ZN catalyst has substantially the same catalyst activity during the storing and/or transporting.4. The process of claim 1 , wherein the reduced ZN catalyst comprises a T0 catalyst activity at the beginning of the storing and/or transporting and a T1 catalyst activity at the end of the storing and/or transporting claim 1 , and wherein the T1 catalyst activity is within 65% of the T0 catalyst activity.5. The process of claim 1 , wherein the reduced ZN catalyst comprises a T0 catalyst activity at the beginning of the storing and/or transporting and a T1 catalyst activity at the end of the storing and/or transporting claim 1 , and wherein the T1 catalyst activity is within 75% of the T0 catalyst activity.6. The process of claim 1 , wherein the reduced ZN catalyst comprises a T0 catalyst activity at the beginning of the storing and/or transporting and a T1 catalyst activity at the end of the storing and/or transporting claim 1 , and wherein the T1 catalyst activity is within 80% of the T0 catalyst activity.7. The process of claim 1 , wherein the storing and/or ...

Method of Preparing Supported Metallocene Catalyst and Method of Preparing Polypropylene Using Catalyst Prepared Thereby

Provided are a method of preparing a supported metallocene catalyst, and a method of preparing polypropylene using the catalyst prepared thereby. According to the present invention, provided is a supported metallocene catalyst capable of preparing an isotactic polypropylene polymer having a low xylene soluble content while having excellent catalytic activity. 2. The method of preparing a supported metallocene catalyst of claim 1 , wherein Rand R in Chemical Formulae 1 and 2 are a tert-butyl-substituted phenyl group.3. The method of preparing a supported metallocene catalyst of claim 1 , wherein R claim 1 , R claim 1 , R claim 1 , R claim 1 , R claim 1 , and R in Chemical Formulae 1 and 2 are each independently hydrogen or an alkyl group having 1 to 20 carbon atoms.4. The method of preparing a supported metallocene catalyst of claim 1 , wherein Rand Rin Chemical Formulae 1 and 2 are a methyl group.5. The method of preparing a supported metallocene catalyst of claim 1 , wherein a weight ratio of the toluene and the hexane in the solvent is 1:0.01 to 1:100.6. The method of preparing a supported metallocene catalyst of claim 1 , wherein the step of dissolving the mixture in the solvent including toluene and hexane is performed at a temperature of −78° C. to 70° C. for 1 hr to 128 hr.7. The method of preparing a supported metallocene catalyst of claim 1 , wherein concentrations of the toluene and the hexane are each independently 0.05 M to 2.0 M.8. The method of preparing a supported metallocene catalyst of claim 1 , wherein the step of dissolving the mixture in the solvent including toluene and hexane includes the step of first adding toluene to the mixture at a first temperature to dissolve the mixture claim 1 , and sequentially claim 1 , adding hexane thereto to dissolve the mixture at a second temperature lower than the first temperature.9. The method of preparing a supported metallocene catalyst of claim 8 , wherein the step of dissolving the mixture in the solvent ...

Process for gas-phase polymerization of olefins

Process for the preparation of heterophasic propylene copolymer compositions (RAHECO) made from or containing a random propylene copolymer (RACO) and an elastomeric propylene copolymer (BIPO), the process being carried out in a reactor having two interconnected polymerization zones, a riser and a downcomer, wherein growing polymer particles: (a) flow through the first polymerization zone, the riser, under fast fluidization conditions in the presence of propylene and of ethylene or an alpha-olefin having from 4 to 10 carbon atoms, thereby obtaining the random propylene copolymer (RACO); (b) leave the riser and enter the second polymerization zone, the downcomer, through which the growing polymer particles flow downward in a densified form in the presence of propylene and of ethylene or an alpha-olefin having from 4 to 10 carbon atoms, wherein the concentration of ethylene or of the alpha-olefin in the downcomer is higher than in the riser, thereby obtaining the elastomeric propylene copolymer (BIPO); and (c) leave the downcomer and are reintroduced into the riser, thereby establishing a circulation of polymer between the riser and the downcomer.

Method of synthesizing hydrocarbon polymers using deoxygenation

The present invention relates to a method of synthesizing hydrocarbon polymers using a deoxygenation reaction, wherein, by deoxygenating polymers including oxygen atom-containing functional groups in side chains thereof to thereby remove the functional groups of the side chains, various block copolymers including polyolefins and hydrocarbon polymers with complex architectures can be synthesized.

PRODUCTION METHOD OF OLEFIN POLYMER AND OLEFIN POLYMERIZATION CATALYST

To provide a method of efficiently affording olefin polymers having a high molecular weight and a high melting point even under industrially advantageous high-temperature conditions. A production method of an olefin polymer to solve the above problem includes polymerizing monomer(s) including at least one α-olefin having 3 or more carbon atoms at 50° C. to 200° C. in the presence of an olefin polymerization catalyst including; (A) a crosslinked metallocene compound represented by General Formula [I] below; and (B) at least one compound selected from (b-1) an organoaluminum oxy-compound, (b-2) a compound that forms an ion pair by reacting with the crosslinked metallocene compound (A), and (b-3) an organoalunimum compound. 2. The production method according to claim 1 , wherein in General Formula [I] claim 1 , Ris a 1-adamantyl group.3. The production method according to claim 1 , wherein in General Formula [I] claim 1 , Rand Rare hydrocarbon groups having 4 to 10 carbon atoms.4. The production method according to claim 1 , wherein in General Formula [I] claim 1 , Rand Rare hydrogen atoms.5. The production method according to claim 1 , where in General Formula [I] claim 1 , Ris a hydrocarbon group having 1 to 20 carbon atoms.6. The production method according to claim 1 , wherein in General Formula [I] claim 1 , Rto Rare hydrogen atoms or hydrocarbon groups having 1 to 20 carbon atoms.7. The production method according to claim 1 , wherein in General Formula [I] claim 1 , Rand Rare hydrogen atoms.8. The production method according to claim 1 , wherein in General Formula [I] claim 1 , Rand Rare hydrocarbon groups having 1 to 20 carbon atoms.9. The production method according to claim 1 , wherein in General Formula [I] claim 1 , n is 1.10. The production method according to claim 1 , wherein at least one of the above α-olefins having 3 or more carbon atoms is propylene.11. The production method according to claim 1 , wherein the olefin polymerization activity under ...

A POLYPROPYLENE COMPOSITION

A polypropylene composition comprising components A), B) and C), wherein component A) is a hindered amine light stabilizer selected from the group consisting of the compounds of formulae (A-I-1), (A-I-2), (A-I-3), (A-III-1) and (A-IV-1) as defined for the present invention, 2. The polypropylene composition according to claim 1 , wherein component A) is a compound of formula (A-I-1) claim 1 , (A-I-3) claim 1 , (A-III-1) or (A-IV-1).3. The polypropylene composition according to claim 1 , wherein component A) is a compound of formula (A-I-1) or (A-IV-1).4. The polypropylene composition according to claim 1 , wherein component B) is at least one magnesium aluminum hydroxide carbonate hydrate or zinc aluminum hydroxide carbonate hydrate.5. The polypropylene composition according to additionally comprising a component D) which is at least one compound selected from the group consisting of phosphites claim 1 , phosphonites claim 1 , hydroxylamines claim 1 , vitamin E and vitamin E acetates.6. The polypropylene composition according to claim 5 , wherein component D) is a phosphite.7. The polypropylene composition according to claim 1 , comprising the components (A) claim 1 , (B) claim 1 , (C) and (D) claim 1 , whereincomponent (A) is a compound of formula (A-I-1),component (B) is a natural or synthetic hydrotalcite,component (C) is 1,3,5-tris(3,5-di-tert-butyl-4-hydroxybenzyl)-2,4,6-trimethylbenzene, andcomponent (D) is tris[2,4-di-tert-butylphenyl]phosphite.8. The polypropylene composition according to which is an article in the form of a pipe claim 1 , cable or geomembrane.9. The polypropylene composition according to which is an article in the form of a pipe or geomembrane.10. The polypropylene composition according to which is an article in the form of a pipe or geomembrane which are in contact with oxidizing media.11. The polypropylene composition according to which is an article in the form of a pipe.12. The polypropylene composition according to which is an article ...

PROPYLENE POLYMER RESINS

Propylene-based polymer resins and related compositions and processes are disclosed. The propylene polymer resins have high isotacticity and moderately high xylene soluble content. The polymer resins provide extruded sheets suitable for thermo-forming that exhibit both sag resistance and ease of draw. 1. A propylene polymer resin comprising:a. a xylene soluble content greater than 2; andb. a mesopentad content in the xylene-insoluble fraction greater than 93.5.2. The propylene polymer resin of claim 1 , having a melt flow rate greater than 0.4 g/10 min.3. The propylene polymer resin of or claim 1 , having a M/Mgreater than 5.5 and a M/Mgreater than 20.4. The propylene polymer resin of claim 1 , having a critical frequency for onset of shear-thinning claim 1 , 1/K claim 1 , less than 1.2 s claim 1 , where K is a Cross model constant claim 1 , and a melt strength greater than 15 cN at 190° C.5. The propylene polymer resin of claim 1 , wherein the propylene polymer resin comprises a propylene homopolymer.6. The propylene polymer resin of claim 1 , wherein the propylene polymer resin comprises a copolymer of propylene and ethylene or other alpha-olefin.7. An article manufactured from a propylene polymer resin comprising:a. a xylene soluble content greater than 2%; andb. a mesopentad content in the xylene-insoluble fraction greater than 93.5%.8. The article of claim 7 , wherein the propylene polymer resin has a melt flow rate greater than 0.4 g/10 min.9. The article of or claim 7 , wherein the propylene polymer resin has a M/Mgreater than 5.5 and a M/Mgreater than 20.10. The article of claim 7 , wherein the propylene polymer resin has a critical frequency for onset of shear-thinning claim 7 , 1/K claim 7 , less than 1.2 s claim 7 , where K is a Cross model constant claim 7 , and a melt strength greater than 15 cN at 190° C.11. An extruded sheet s comprising a propylene polymer resin having:a. a melt flow rate greater than 0.4 grams per 10 minutes;{'sub': w', 'n', 'z', 'n ...

Polypropylene with narrow molecular weight distribution range and processes for preparation thereof

Disclosed herein are a polypropylene with narrow molecular weight distribution and a process for preparing the same in a reactor using a Ziegler-Natta catalyst.

Process for Obtaining a Catalyst Composite

A process for obtaining a catalyst composite comprising the following steps: 135-. (canceled)36. A process for the catalytic cracking of an olefin-rich feedstock which is selective towards light olefins in the effluent , the process comprising: at least 10 wt % of a molecular sieve having pores of 10-or more-membered rings;', 'at least one metal silicate different from said molecular sieve comprising at least one alkaline earth metal, such that the catalyst composite comprises at least 0.1 wt % of silicate to produce an effluent with an olefin content of lower molecular weight than that of the hydrocarbon feedstock., 'contacting a hydrocarbon feedstock containing one or more olefins with a catalyst composite comprising37. The process according to claim 36 , wherein the molecular sieve is a P-modified zeolite claim 36 , and wherein the metal silicate comprises one or more of Ga claim 36 , Al claim 36 , Ce claim 36 , In claim 36 , Cs claim 36 , Sc claim 36 , Sn claim 36 , Li claim 36 , Zn claim 36 , Co claim 36 , Mo claim 36 , Mn claim 36 , Ni claim 36 , Fe claim 36 , Cu claim 36 , Cr claim 36 , Ti claim 36 , and V.38. The process according to claim 36 , wherein the molecular sieve is a zeolite claim 36 , wherein the metal silicate is xonotlite (CaSiO(OH)).39. The process according to claim 36 , wherein the catalyst composite comprises metal phosphate.40. The process according to claim 36 , wherein the catalyst composite comprises matrix material.41. The process according to claim 36 , wherein the catalyst composite comprises binder.42. The process of comprising: at least 10 wt % of a molecular sieve having pores of 10-or more-membered rings;', 'at least one metal silicate, different from said molecular sieve, comprising at least one alkaline earth metal, such that the XTO catalyst composite comprises at least 0.1 wt % of silicate,, 'contacting an oxygen-containing, halogenide-containing or sulphur-containing organic feedstock in an XTO reactor with an XTO catalyst ...

Process for Reducing the Light Oligomer Content of Polypropylene Oils

Disclosed herein are dual catalyst compositions containing an unbridged metallocene compound, a bridged metallocene compound, a chemically-treated solid oxide, and an optional co-catalyst. These catalyst compositions can be used for the oligomerization of propylene to produce an oligomer product. For example, a heavy propylene oligomer can be recovered from the oligomer product, and the heavy propylene oligomer can be characterized by a high flash point and viscosity index, and a low pour point. 1. An oligomerization process comprising: (i) catalyst component I comprising an unbridged zirconium or hafnium based metallocene compound containing two cyclopentadienyl groups, two indenyl groups, or a cyclopentadienyl and an indenyl group;', '(ii) catalyst component II comprising a single atom bridged, zirconium or hafnium based metallocene compound containing two cyclopentadienyl groups;', '(iii) a chemically-treated solid oxide; and', '(iv) optionally, a co-catalyst;, 'contacting an olefin feedstock comprising propylene with a catalyst composition comprisingto form an oligomer product under oligomerization conditions; andisolating a heavy propylene oligomer by removing unreacted propylene and at least a portion of light propylene oligomers from the oligomer product using one or more separation steps, wherein the heavy propylene oligomer is characterized by a pour point in a range from about 0 to about −55° C.2. The process of claim 1 , wherein the heavy propylene oligomer is characterized by:a flash point in a range from about 140 to about 300° C.; anda viscosity index in a range from about 75 to about 200.3. The process of claim 1 , wherein the heavy propylene oligomer is characterized by:a flash point in a range from about 140 to about 260° C.;a viscosity index in a range from about 80 to about 130; anda pour point in a range from about −5 to about −30° C.4. The process of claim 1 , wherein the heavy propylene oligomer is characterized by:a Mw in a range from about ...

Compound composition for vehicle interior material using natural fiber

Disclosed herein is a compound composition for a vehicle interior material using a natural fiber, which has use for enhancing physical properties, such as shock resistance, tensile strength, flexural strength, elongation, flexural modulus of elasticity, and heat deflection temperature, while realizing a reduction in weight of a vehicle. The compound composition is composed of a base resin obtained by mixing a high-fluidity polypropylene resin and a high-impact polypropylene resin, the base resin being a thermoplastic resin, a reinforcing filler that is a lightweight, eco-friendly, and low-density natural fiber, an impact modifier that is ethylene-propylene-octene rubber, an inorganic filler that functions as a nuclear agent, and a maleic-anhydride compatibilizer.

HEAT REFLECTIVE COATING

Cables including a heat-reflective layer are disclosed. The heat-reflective layer includes a polymeric layer and metal particles. The metal particles are on or near the exposed surface of the heat-reflective layer. Methods of making a heat-reflective layer and cables including a heat-reflective layer rare also disclosed. 1. A cable comprising:one or more conductors; anda heat-reflective layer surrounding the one or more conductors, the heat-reflective layer comprising a polymeric layer and metal particles; andwherein the metal particles are disposed on or near the exposed surface of the heat-reflective layer.2. The cable of claim 1 , wherein the metal particles comprise one or more of aluminum claim 1 , copper claim 1 , gold claim 1 , silver claim 1 , tin claim 1 , and alloys thereof.3. The cable of claim 1 , wherein the metal particles comprise one or more metal oxides of titanium claim 1 , iron claim 1 , and cobalt.4. The cable of claim 1 , wherein the metal particles are deposited on the polymeric layer by vacuum deposition or sputtering.5. The cable of claim 1 , wherein the metal particles are dispersed through the polymeric layer.6. The cable of claim 1 , wherein the polymeric layer comprises one or more of polyvinyl chloride (“PVC”) claim 1 , polypropylene claim 1 , polyolefins claim 1 , polyethylene claim 1 , ethylene-vinyl acetate (“EVA”) claim 1 , polyurethanes claim 1 , epoxies claim 1 , tetra-fluoroethylene claim 1 , hexafluoropropylene claim 1 , fluoropolymer claim 1 , acrylic claim 1 , nylon claim 1 , and polyester.7. The cable of claim 1 , wherein the heat-reflective layer further comprises an anti-scuffing coating.8. The cable of claim 1 , wherein the heat-reflective layer is processed with a shim roller.9. The cable of claim 1 , wherein the heat-reflective layer further comprises conductive particles claim 1 , and wherein the conductive particles are within the heat-reflective layer.10. The cable of claim 9 , wherein the conductive particles comprise ...

Olefin Coordination Polymerization Catalyst, And Preparation Method And Application Thereof

The present invention relates to an olefin coordination polymerization catalyst and a preparation method and application thereof. The olefin polymerization catalyst consists of a primary catalyst mainly prepared from a magnesium compound, a transition metal halide, a C-Calcohol and an electron donor in a molar ratio of 1:1-40:0.01-10:0.001-10, and a co-catalyst which is an organoaluminum compound; and the molar ratio of the transition metal halide to the co-catalyst is 1:10-500. The catalyst of the present invention has a good particle morphology, and a spherical shape, and the catalyst particles do not stick to the vessel wall; the catalyst has high activity and excellent hydrogen regulation performance, and the melt index MFR of polyethylene may be adjusted within 0.01 g/10 min-550 g/10 min; and the catalyst is applicable in slurry polymerization process, loop reactor polymerization process, gas phase polymerization process or combined polymerization process. 1. An olefin coordination polymerization catalyst , characterized in that the catalyst consists of a primary catalyst mainly prepared from a magnesium compound , a transition metal halide , a C-Calcohol and an electron donor in a molar ratio of 1:1-40:0.01-10:0.001-10 , and a co-catalyst which is an organoaluminum compound; and the molar ratio of the transition metal halide to the co-catalyst is 1:10-500.2. The olefin coordination polymerization catalyst according to claim 1 , wherein the primary catalyst is prepared from the magnesium compound claim 1 , the transition metal halide claim 1 , the C-Calcohol claim 1 , the electron donor and a silicon-containing substance in a molar ratio of 1:1-40:0.01-10:0.001-10:0.00005-1.3. The olefin coordination polymerization catalyst according to claim 1 , wherein the primary catalyst is prepared from the magnesium compound claim 1 , the transition metal halide claim 1 , the C-Calcohol claim 1 , the electron donor and a succinic acid ester in a molar ratio of 1:1-40:0.01 ...

PRESSURE SENSITIVE FLOW DISTRIBUTION MEDIUM FOR VARTM

A method for manufacturing a fibre reinforced composite by means of a vacuum assisted resin transfer moulding, comprising the steps of placing a fibre material in a mould, placing a flow distribution medium onto the fibre material, and covering the fibre material (1) and the flow distribution medium with a vacuum foil for forming a closed mould cavity between the mould and the vacuum foil is described. It is characterised in using a flow distribution medium with a thickness depending on a pressure gradient over the vacuum foil. 1. A method for manufacturing a fibre reinforced composite by means of vacuum assisted resin transfer moulding , comprising:placing a fibre material in a mould;placing a flow distribution medium onto the fibre material; andcovering the fibre material and the flow distribution medium with a vacuum foil for forming a closed mould cavity between the mould and the vacuum foil wherein the flow distribution medium has a thickness depending on a pressure gradient over the vacuum foil.2. The method as claimed in claim 1 , further comprising:placing a peel ply between the flow distribution medium and the fibre material.3. The method as claimed in claim 1 , wherein the flow distribution medium has a stiffness that enables the flow distribution medium to lift the vacuum foil.4. The method as claimed in claim 1 , wherein the flow distribution medium comprises nonwoven fibre material.5. The method as claimed in claim 1 , wherein the flow distribution medium comprises fibres claim 1 , the fibres having a diameter of at least 10 μm and/or maximal 500 μm.6. The method as claimed in claim 1 , wherein the flow distribution medium comprises thermoplastic material.7. The method as claimed in claim 1 , wherein the flow distribution medium comprises polyester and/or polypropylene and/or polyamide.8. The method as claimed in claim 1 , wherein the flow distribution medium comprises material having a thickness between 2 mm and 10 mm at 1.000 mbar and/or between 0.1 ...

Non explosive bis-sulfonyl azides

The invention relates to a compound of the general formula (I) N 3 O 2 S—Ar-L-Ar′—SO 2 N 3 , wherein: —Ar and Ar′ are aromatic building blocks; and —L is a linking group comprising at least one heteroatom as well as an organic chain denoted as Sp″ and having at least two carbon atoms. The invention also relates to a compound of the general formula (II) wherein: —Ar and Ar′ are aromatic building blocks; —L is a covalent bond or a linking group; —m and n are both 0 or 1, at least one of m and n being 1; —Sp and Sp′ are organic chains having at least two carbon atoms. The invention also relates to the use of these compounds as cross linking agents in the manufacture of polymers

Product By Integrated Process for Producing Propylene Polymers and Copolymers with Reduced Greenhouse Gas Emission

A product made by a substantially zero-carbon-emission (ZCE) process for making propylene polymers and copolymers including: converting alkanes to the olefin monomers ethylene, propylene, and butene or combinations thereof, using renewable electric power and scrubbing the stack gases from any fired heaters or boilers to remove carbon dioxide, in an oxidative-coupling of methane plant including the steps of passing alkanes through an ethylene plant while adding oxygen, passing a portion of the polymerization grade ethylene through a 2-butene plant, and passing the 2-butene stream and a portion of the polymerization grade ethylene stream through a propylene plant. The polymerization grade propylene is polymerized to produce isotactic homopolymer polypropylene, or ethylene-propylene random copolymer, or impact-grade polypropylene containing ethylene-propylene rubber. 1. A product comprising isotactic polypropylene homopolymers or copolymers produced by a substantially zero carbon dioxide emissions process comprising: i. providing an ethylene plant comprising an oxidation reactor and a first fractionation train and converting natural gas and oxygen in the oxidation reactor to produce an oxidation reactor effluent comprising ethylene and passing the oxidation reactor effluent to the first fractionation train to recover a first ethylene stream, a second ethylene stream, and a third ethylene stream;', 'ii. providing a 2-butene plant comprising a dimerization unit and a second fractionation train and converting a portion of the first ethylene stream in the dimerization unit to produce a dimerization unit effluent comprising 2-butene and passing the dimerization unit effluent to the second fractionation train to produce a 2-butene stream;', 'iii. providing a propylene plant comprising a metathesis reactor and a third fractionation train and converting the 2-butene stream and a portion of the second ethylene stream in the metathesis reactor to produce a metathesis reactor ...

Multimodal polypropylene composition for pipe applications

A multimodal propylene copolymer composition suitable for moulding and pipe applications comprising a multimodal propylene copolymer (U).

CATALYST FOR THE POLYMERIZATION OF OLEFINS

A catalyst for the homopolymerization or copolymerization of CH═CHR olefins, made from or containing the product obtained by contacting: 1. A catalyst for the homopolymerization or copolymerization of CH═CHR olefins wherein R is a hydrocarbyl radical with 1-12 carbon atoms , comprising the product obtained by contacting:(A) the product obtained by contacting: (a) Ti,', '(b) Mg,', '(c) Cl, and', '(d) an internal electron donor compound selected from the group consisting of ethers, amines, silanes, carbamates ketones, esters of aliphatic acids, alkyl and aryl esters of optionally substituted aromatic polycarboxylic acids, diol derivatives selected from the group consisting of monoesters monocarbamates and monoesters monocarbonates and mixtures thereof,', 'wherein the solid catalyst component further comprises', '(e) from about 0.1 to about 50 wt % of Bi, based upon the total weight of the solid catalyst component;, '(i) a solid catalyst component comprising'}(ii) an alkyl aluminum compound and, {'br': None, 'sup': 1', '2, 'sub': a', 'b, '(R)Si(OR)'}, '(iii) an external electron donor compound having the formula{'sup': 1', '2, 'wherein Rand Rare independently selected from the group consisting of alkyl radicals with 1-8 carbon atoms, optionally containing heteroatoms, and a is 0 or 1 and a+b=4.'}2. The catalyst according to claim 1 , wherein the amount of Bi ranges from about 0.5 to about 40 wt %.3. The catalyst according to claim 1 , wherein the Bi atoms derive from Bi halides.4. The catalyst according to claim 1 , wherein the internal electron donor compound is selected from the group consisting of alkyl and aryl esters of optionally substituted aromatic polycarboxylic acids claim 1 , esters of malonic acids and esters of glutaric acids.5. The catalyst according to claim 4 , wherein the internal donor is selected from alkyl and aryl esters of optionally substituted aromatic polycarboxylic acids claim 4 , and the Mg/Ti molar ratio is equal to claim 4 , or higher than ...

HYDROHALOGENATION OF VINYL TERMINATED POLYMERS AND THEIR FUNCTIONALIZED DERIVATIVES FOR FOULING MITIGATION IN HYDROCARBON REFINING PROCESSES

A compound useful for reducing fouling in a hydrocarbon refining process is provided. A method for preparing the compound includes hydrohalogenating a polymer having a vinyl chain end to obtain a halogen-containing terminal group, and reacting the terminal group with a polyamine. Methods of using the compound and compositions thereof are also provided. 117.-. (canceled)19. The method of claim 18 , wherein Rcomprises polypropylene.20. The method of claim 19 , wherein the polypropylene is atactic polypropylene claim 19 , isotactic polypropylene claim 19 , or syndiotactic polypropylene.21. The method of claim 19 , wherein the polypropylene is amorphous.22. The method of claim 19 , wherein the polypropylene includes isotactic or syndiotactic crystallizable units.23. The method of claim 19 , wherein the polypropylene includes meso diads constituting from about 30% to about 99.5% of the total diads of the polypropylene.24. The method of claim 18 , wherein the molar ratio of R:polyamine is between about 5:1 and about 1:1.25. The method of claim 18 , wherein Rhas a number-averaged molecular weight of from about 300 to about 30000 g/mol.26. The method of claim 25 , wherein Rhas a number-averaged molecular weight of from about 500 to about 5000 g/mol.27. The method of claim 18 , wherein Rcomprises polyethylene.28. The method of claim 18 , wherein Rcomprises poly(ethylene-co-propylene).29. The method of claim 18 , wherein Rcomprises from about 10 mole % to about 90 mole % of ethylene units and from about 90 mole % to about 10 mole % propylene units.30. The method of claim 29 , wherein Rcomprises from about 20 mole % to about 50 mole % of ethylene units.31. The method of claim 18 , wherein Rcomprises poly(higher alpha-olefin) claim 18 , the higher alpha-olefin including two or more carbon atoms on each side chain.32. The method of claim 18 , wherein Rcomprises poly(propylene-co-higher alpha-olefin) claim 18 , the higher alpha-olefin including two or more carbon atoms on each ...

METHOD FOR PRODUCING POLYOLEFIN AND POLYOLEFIN PRODUCTION SYSTEM

A polyolefin production system is provided. The polyolefin production system includes a plurality of gas-phase polymerization tanks configured to polymerize an olefin gas to form a polyolefin, a compressor comprising an inlet and an outlet and being configured to compress a an olefin-containing gas, an individual gas feed line disposed at each of the gas-phase polymerization tanks and configured to guide the gas fed from the outlet of the compressor to each of the gas-phase polymerization tanks, an individual gas discharge line disposed at each of the gas-phase polymerization tanks and discharging the gas from each of the gas-phase polymerization tanks, and a first valve installed in each of the individual gas feed lines. 1. A polyolefin production system comprising:a plurality of gas-phase polymerization tanks configured to polymerize an olefin gas to form a polyolefin;a compressor comprising an inlet and an outlet and being configured to compress an olefin-containing gas;an individual gas feed line disposed at each of the gas-phase polymerization tanks, configured to guide the gas fed from the outlet of the compressor to each of the gas-phase polymerization tanks;an individual gas discharge line disposed at each of the gas-phase polymerization tanks, configured to discharge the gas from each of the gas-phase polymerization tanks; anda first valve installed in each of the individual gas feed lines.2. The polyolefin production system according to claim 1 , further comprising a particle transfer series line connecting the plurality of the gas-phase polymerization tanks in series.3. The polyolefin production system according to claim 1 , wherein the first valve is a butterfly valve or an eccentric rotary plug valve.4. The polyolefin production system according to claim 1 , further comprising a second valve installed in each of the individual gas discharge lines.5. The polyolefin production system according to claim 4 , wherein the second valve is a butterfly valve or ...

RESIN ADDITIVE COMPOSITION, THERMOPLASTIC RESIN COMPOSITION, AND MOLDED ARTICLE THEREOF

Provided are a resin additive composition which is excellent in fluidity and can impart excellent physical properties to a thermoplastic resin, a thermoplastic resin composition, and a molded article thereof. 2. A thermoplastic resin composition claim 1 , wherein the resin additive composition according to is contained in such a manner that the phosphoric ester compound (A) represented by the general formula (1) is 0.001 to 10 parts by mass based on 100 parts by mass of a thermoplastic resin.3. The thermoplastic resin composition according to claim 2 , wherein the thermoplastic resin is a polyolefin resin.4. The thermoplastic resin composition according to claim 2 , further containing 1 to 80 parts by mass of a thermoplastic elastomer (C) and 1 to 80 parts by mass of a filler (D).5. The thermoplastic resin composition according to claim 4 , wherein the thermoplastic elastomer (C) is a copolymer of ethylene and an α-olefin or a copolymer of ethylene and a vinyl ester.7. A molded article characterized by using the thermoplastic resin composition according to . The present invention relates to a resin additive composition, a thermoplastic resin composition (hereinafter, also simply referred to as “resin composition”), and a molded article thereof, and specifically to a resin additive composition which is excellent in fluidity and can impart excellent physical properties to a thermoplastic resin, a thermoplastic resin composition, and a molded article thereof.The thermoplastic resin is widely utilized for a variety of molded articles such as building materials, automobile materials, household electric and electronic materials, textile materials, packaging materials, agricultural materials, housing materials for home appliances, houseware goods, films, sheets and structural parts depending on a variety of physical properties such as molding processability and low specific gravity. In particular, a polyolefin resin such as polyethylene, polypropylene, or polybutene-1 has ...

METALLOCENE COMPLEX WITH A HETEROATOM-CONTAINING PI-LIGAND AND PREPARATION METHOD THEREFOR, CATALYST SYSTEM CONTAINING THE SAME AND USE THEREOF

The present invention relates to a metallocene complex with a heteroatom-containing π-ligand, having a chemical structure represented by formula (I) as below: 2. The method according to claim 1 , wherein claim 1 , the nucleophilic agent in the reaction equation (2) is an organolithium agent RLi claim 1 , wherein Ris a C-Calkyl group or a C-Caryl group.3. The method according to claim 1 , wherein claim 1 , M is selected from zirconium claim 1 , hafnium or titanium from Group 4.4. The method according to claim 1 , wherein claim 1 , in the structure of —ORO— claim 1 , the combination of the positions of the two oxygen atoms are ortho-α claim 1 ,β-positions or meta-α claim 1 ,γ-positions in the radical.5. The method according to claim 1 , wherein claim 1 , X is selected from chloro claim 1 , bromo claim 1 , a C-Clower alkyl group claim 1 , or an aryl group.6. The method according to claim 1 , wherein claim 1 , R″ is selected from a C-Clinear alkyl claim 1 , phenyl claim 1 , mono- or poly-substituted phenyl claim 1 , benzyl claim 1 , mono- or poly-substituted benzyl claim 1 , 1-naphthyl claim 1 , 2-naphthyl claim 1 , 2-anthryl claim 1 , 1-phenanthryl claim 1 , 2-phenanthryl claim 1 , or 5-phenanthryl.7. The method according to claim 1 , wherein claim 1 , Ris selected from hydrogen claim 1 , methyl claim 1 , ethyl claim 1 , isopropyl claim 1 , t-butyl claim 1 , phenyl claim 1 , benzyl claim 1 , 2-furyl claim 1 , or 2-thienyl.8. The method according to claim 1 , wherein claim 1 , Ris selected from H claim 1 , methyl claim 1 , trifluoromethyl claim 1 , isopropyl claim 1 , t-butyl claim 1 , phenyl claim 1 , p-tert-butylphenyl claim 1 , p-trimethylsilylphenyl claim 1 , p-trifluoromethylphenyl claim 1 , 3 claim 1 ,5-dichloro-4-trimethylsilylphenyl claim 1 , or 2-naphthyl.9. The method according to claim 1 , wherein claim 1 , the heteroatom from Groups 13 to 17 in the periodic table is selected from boron claim 1 , aluminum claim 1 , silicon claim 1 , germanium claim 1 , sulfur ...

CATALYST COMPONENT

The invention relates to a particulate Group 2 metal/transition metal olefin polymerisation catalyst component comprising a special 1,3-diether as internal donor, to a process for preparing same and to the use of such a catalyst component for preparing a catalyst used in the polymerisation of olefins. 2. The solid catalyst component of claim 1 , further comprising a halogen.3. The solid catalyst component of claim 1 , wherein the titanium or magnesium is derived from a chloride.4. The solid catalyst component of claim 1 , having a mean particle size of 2 μm to 500 μm claim 1 , as determined by using a Coulter Counter LS200 at 25° C. in n-heptane.5. The solid catalyst component of claim 1 , containing from 1.0 to 50.0 wt % of the internal electron donor.6. The solid catalyst component of claim 1 , wherein the internal electron donor is 2 claim 1 ,2-di(2-tetrahydrofuryl)-propane.7. The solid catalyst component of claim 1 , having:from 1.0 to 10.0 wt % of titanium, as determined by ICP analysis;from 5.0 to 22.0 wt % of magnesium, as determined by ICP analysis;from 0.0 to 0.8 wt % of aluminum, as determined by ICP analysis; anda mean particle size of 2 μm to 500 μm, as determined by using a Coulter Counter LS200 at 25° C. in n-heptane.8. The solid catalyst component of claim 1 , having:from 2.0 to 7.0 wt % of titanium, as determined by ICP analysis;from 6.5 to 18.0 wt % of magnesium, as determined by ICP analysis;from 0.0 to 0.4 wt % of aluminum, as determined by ICP analysis; anda mean particle size of 10 μm to 100 μm, as determined by using a Coulter Counter LS200 at 25° C. in n-heptane.9. The solid catalyst component of claim 1 , wherein the internal electron donor is 3 claim 1 ,3-bis(methoxymethyl)-2 claim 1 ,6-dimethylheptane; 3 claim 1 ,3-bis(ethoxymethyl)-2-methyldodecane; 3 claim 1 ,3-bis(ethoxymethyl)-2 claim 1 ,6-dimethylheptane; 4-ethoxy-3-(ethoxymethyl)-heptane; 2 claim 1 ,2-diisobutyl-1 claim 1 ,3-dimethoxypropane; 9 claim 1 ,9-bis(methoxymethyl)-fluorene; ...

POLYPROPYLENE COMPOSITION FOR TAPES

The invention relates to a polypropylene composition comprising a propylene homopolymer or propylene-ethylene copolymer having an ethylene content of at most 1.0 wt % based on the propylene-ethylene copolymer, wherein the amount of propylene homopolymer or propylene-ethylene copolymer is at least 98 wt %, for example at least 98.5 wt %, preferably at least 99 wt %, more preferably at least 99.5, for example at least 99.75 wt % based on the polypropylene composition, wherein the polypropylene composition has a melt flow rate in the range of 0.70 to 2.4 dg/min as measured according to IS01 133 (2.16 kg/230° C.), an Mw/Mn in the range from 7.0 to 13.0, wherein Mw stands for the weight average molecular weight and Mn stands for the number average weight, an Mz/Mn is in the range from 20 to 50, wherein Mz stands for the z-average molecular weight and wherein Mw, Mn and Mz are measured according to ASTM D6474-12. 1. A polypropylene composition comprising a propylene homopolymer or propylene-ethylene copolymer having an ethylene content of at most 1.0 wt % based on the propylene-ethylene copolymer ,wherein the amount of propylene homopolymer or propylene-ethylene copolymer is at least 98 wt %, based on the polypropylene composition, a melt flow rate in the range of 0.70 to 2.4 dg/min as measured according to ISO1133 (2.16 kg/230° C.);', 'an Mw/Mn in the range from 7.0 to 13.0, preferably from 8.0 to 13.0, wherein Mw stands for the weight average molecular weight and Mn stands for the number average weight; and', 'an Mz/Mn is in the range from 20 to 50, wherein Mz stands for the z-average molecular weight, and, 'wherein the polypropylene composition has'}wherein Mw, Mn and Mz are measured according to ASTM D6474-12.2. The polypropylene composition according to having a melt flow rate in the range of 0.70 to 2.3 dg/min as measured according to ISO1133 (2.16 kg/230° C.).3. The polypropylene composition according to claim 1 , wherein the composition has an amount of xylene ...

METHOD FOR POLYMERIZING ALPHA-OLEFIN

The purpose of the present invention is to produce an alpha-olefin polymer having excellent production stability utilizing a long-lasting high catalytic activity. Provided is a method for producing an alpha-olefin polymer using a catalyst comprising: 1. A method for producing an alpha-olefin polymer using a catalyst comprising:(A) a solid catalyst component comprising, as essential components, magnesium, titanium, a halogen and an electron donor compound;(B) an organoaluminum compound; and(C) an electron donor compound,the method comprising:(1) pre-polymerizing an alpha-olefin in the presence of the components (A) and (B);(2) bringing the resulting pre-polymerized catalyst into contact with a contact product produced by pre-contact of the components (B) and (C); and(3) adding the pre-polymerized catalyst that has been contacted with the contact product to a polymerization reaction vessel charged with an alpha-olefin to polymerize the alpha-olefin.2. The method according to claim 1 , wherein the duration of the contact in the step (2) is not more than 20 minutes.3. The method according to claim 1 , wherein the component (C) is an organosilicon compound.4. A method for producing an alpha-olefin polymer using a catalyst comprising:(A) a solid catalyst component comprising, as essential components, magnesium, titanium, a halogen and an electron donor compound;(B) an organoaluminum compound; and(C) an electron donor compound,the method comprising:(1) pre-polymerizing an alpha-olefin in the presence of the components (A) and (B);(2) bringing the resulting pre-polymerized catalyst into contact with the component (B); and(3) adding the pre-polymerized catalyst that has been contacted with the component (B) to a polymerization reaction vessel charged with the component (C) and an alpha-olefin to polymerize the alpha-olefin.5. The method according to claim 4 , wherein the duration of the contact in the step (2) is not more than 20 minutes.6. The method according to claim 4 , ...

COMPOSITIONS USEFUL IN PREPARING PLASTICS AND PAINTS

Compositions of matter that are useful in the preparation of plastics and paints. These compositions contain a large number of silanol groups bonded to the silicon atoms that provide water solubility and/or disperseability of such materials in aqueous solutions. In addition, these compositions contain organofunctional groups that are antimicrobial in nature. These compositions, when coupled with plastics and paints, provide antimicrobial properties to such plastics and paints as well as adhesion properties. 1. A composition of matter , said composition of matter being an incipient mixture of(i) at least two alkoxylated organofunctionalsilanes;(ii) a predetermined amount of acid or base, and,(iii) water.2. A composition of matter as claimed in wherein the organofunctionalsilanes are selected from the group consisting of:{'sub': 3', 'd', '2d', 'd', '2d', '2, 'a. (R′O)SiHN(H) (CH)NHwherein R′ is an alkyl radical of from 1 to 4 carbon atoms and d is an integer of 1 or greater,'}{'sub': 3', 'd', '2d', '2, 'sup': +', '4', '−', '4', '−, 'b. (R′O)SiCHS(R)Xwherein R′ is an alkyl radical of from 1 to 4 carbon atoms, Ris independently an alkyl group or aralkyl group wherein there is a total of less than 60 carbon atoms in the molecule, d is an integer of 1 or greater and Xis a water soluble monovalent anion;'}{'sub': 3', 'd', '2d', '2', '2, 'sup': +', '−', '−, 'c. (R′O)SiCHSC(NH)X, wherein R′ is an alkyl radical of from 1 to 4 carbon atoms, wherein d is an integer of 1 or greater and Xis a water soluble monovalent anion;'}{'sub': 3', 'd', '2d', '3, 'sup': +', '6', '−', '6', '−, 'd. (R′O)SiCHP (R)Xwherein R′ is an alkyl radical of from 1 to 4 carbon atoms, Ris independently selected from an alkyl group or aralkyl group wherein there is a total of less than 60 carbon atoms in the molecule, d is an integer of 1 or greater and Xis a water soluble monovalent anion;'}{'sub': 3', '3', '2, 'sup': +', '−, 'e. (R′O)Si—(R″)N (CH)(R′″)Cl, wherein R′ is an alkyl radical of from 1 to 4 ...

BIAXIALLY ORIENTED POLYPROPYLENE FILM

Provided is a biaxially oriented polypropylene film that has high stiffness, has excellent heat resistance at a high temperature of 150° C., easily maintains a bag shape when being made into a packaging bag, and has less pitch shift during printing or fewer wrinkles in a sealed portion when being heat-sealed. A biaxially oriented polypropylene film, wherein a half width of a peak derived from an oriented crystal in a width direction in azimuth dependence of a (110) plane of polypropylene α-type crystal obtained by wide-angle X-ray diffraction measurement is not larger than 27°, and a tan δ area in the width direction obtained from a ratio (E′E″) of a storage elastic modulus (E′) to a loss elastic modulus (E″) obtained by dynamic viscoelasticity measurement is not smaller than 0.2 and not larger than 0.4. 1. A biaxially oriented polypropylene film , wherein a half width of a peak derived from an oriented crystal in a width direction in azimuth dependence of a (110) plane of polypropylene αe crystal obtained by wide-angle X-ray diffraction measurement is not larger than 27° , and a tan δ area in the width direction obtained from a ratio (E′/E″) of a storage elastic modulus (E′) to a loss elastic modulus (E″) obtained by dynamic viscoelasticity measurement is not smaller than 0.2 and not larger than 0.4.2. The biaxially oriented polypropylene film according to claim 1 , wherein a heat shrinkage rate of the biaxially oriented polypropylene film at 120° C. is not higher than 2.0% in the longitudinal direction and not higher than 5.0% in the width direction claim 1 , and the heat shrinkage rate at 120° C. in the longitudinal direction is lower than the heat shrinkage rate at 120° C. in the width direction.3. The biaxially oriented polypropylene film according to claim 1 , wherein a refractive index Ny in the width direction of the biaxially oriented polypropylene film is not lower than 1.5230 claim 1 , and ΔNy of the biaxially oriented polypropylene film is not lower than ...

ETHYLENE AND ALPHA-OLEFIN POLYMERIZATION METHOD

Disclosed is a method for polymerization that copolymerizes ethylene and alpha-olefin. The method includes the steps of: copolymerizing ethylene and alpha-olefin of reaction raw materials in presence of solvents, to produce a polymerization product in which low molecular weight compounds containing unreacted ethylene and alpha-olefin, the solvents, ethylene and alpha-olefin copolymers and ethylene and alpha-olefin oligomers; separating the unreacted ethylene and alpha-olefin contained in the polymerization product by distilling; separating the solvents and the low molecular weight compounds having lower molecular weight than the ethylene and alpha-olefin copolymer and contained in the polymerization product by distilling, to obtain pure polymerization product; and separating the low molecular weight oligomers from the solvents and the low molecular weight compounds previously separated by distilling to recover the solvents, and then reusing the recovered solvents as solvents for polymerization. 1. A method for polymerizing ethylene and alpha-olefin , comprising the steps of:copolymerizing ethylene and alpha-olefin in the presence of a solvent to produce a polymerization product which includes (i) the unreacted ethylene and alpha-olefin, (ii) the solvent, (iii) ethylene and alpha-olefin copolymers and (iv) ethylene and alpha-olefin oligomers;separating (i) the unreacted ethylene and alpha-olefin from the polymerization product by distilling;separating (ii) the solvent and (iv) the ethylene and alpha-olefin oligomers which have lower molecular weight than (iii) the ethylene and alpha-olefin copolymer from the polymerization product by distilling to obtain (iii) the ethylene and alpha-olefin copolymer;separating (iv) the ethylene and alpha-olefin oligomers by distilling from the separated (ii) the solvent and (iv) the ethylene and alpha-olefin oligomers to recover (ii) the solvent; andreusing (ii) the recovered solvent as a solvent for the copolymerizing step of ...

Bridged Phenolate Transition Metal Complexes, Production, and uses Thereof

The present disclosure provides transition metal catalysts and the respective bridged phenolate ligands contained on the catalyst, as well as, catalyst systems and polymerization processes for producing polyolefins. The catalysts and the catalyst systems provide catalytic activity values of greater than 100 kg/mmol-hr, such as greater than 400 kg/mmol-hr or greater than 500 kg/mmol-hr. 3. The transition metal complex of claim 2 , wherein M is Hf or Zr.4. The transition metal complex of claim 2 , wherein Q is O claim 2 , N claim 2 , S claim 2 , or P.5. The transition metal complex of claim 2 , wherein Q is N claim 2 , and wherein each Ris independently a hydrogen or a substituted or unsubstituted C-Chydrocarbyl.6. The transition metal complex of claim 2 , wherein each Ris independently a hydrogen or a substituted or unsubstituted C-Chydrocarbyl.7. The transition metal complex of claim 2 , wherein each Ris independently a hydrogen or a substituted or unsubstituted C-Chydrocarbyl claim 2 , and wherein y is an integer of 2 claim 2 , 3 claim 2 , 4 claim 2 , or 5.8. The transition metal complex of claim 2 , wherein each Ron Land Lis independently a hydrogen or a substituted or unsubstituted C-Chydrocarbyl claim 2 , and wherein y is an integer of 2 or 3.9. The transition metal complex of claim 2 , wherein Lis an unsubstituted methanediyl and Lis an unsubstituted ethanediyl.10. The transition metal complex of claim 2 , wherein each Xand Xis independently a substituted or unsubstituted C-Chydrocarbyl.11. The transition metal complex of claim 2 , wherein each Xand Xis independently a substituted or unsubstituted C-Calkyl claim 2 , a phenyl claim 2 , a benzyl claim 2 , a cyclohexyl claim 2 , or halide-substituted analogues thereof.12. The transition metal complex of claim 2 , wherein each Xand Xis independently a halide.13. The transition metal complex of claim 2 , wherein Ris a substituted or unsubstituted linear claim 2 , branched claim 2 , cyclic claim 2 , polycyclic claim ...

IMPROVED PROCESS AND SYSTEM FOR VAPOR PHASE POLYMERIZATION OF OLEFIN MONOMERS

The present invention relates to a continuous vapor phase olefin polymerization process comprising polymerization of at least one olefin monomer in at least two serial polymerization reactors containing an agitated bed of forming polymer particles, wherein forming polymer particles are transferred from an upstream reactor to a downstream reactor, wherein the upstream reactor is a horizontal stirred reactor containing multiple reaction zones, each reaction zone having at least one inlet for a gaseous stream and optionally additionally an inlet for a liquid stream, wherein said process reduces the carry-over of undesired reactive gases from the upstream reactor to the downstream reactor. The present invention further relates to a system suitable for the present continuous vapor phase olefin polymerization process. The present invention further relates to the use of the present process and system for producing heterophasic polypropylene. 1. A continuous vapor phase olefin polymerization process comprising polymerization of at least one olefin monomer in at least two serial vapor phase polymerization reactors containing an agitated bed of forming polymer particles ,wherein forming polymer particles are transferred from an upstream reactor to a downstream reactor,wherein the upstream reactor is a horizontal stirred reactor containing multiple reaction zones, each reaction zone having at least one inlet for a gaseous stream and optionally additionally an inlet for a liquid stream and,{'sub': 2', 'discharge zone', 'discharge zone', '2', 'receding zone', 'preceding zone, 'wherein one reaction zone comprised in the upstream reactor vessel is a polymer discharge reaction zone from which forming polymer particles are discharged and subsequently transported to the downstream reactor and wherein the ratio of the hydrogen concentration to the olefin monomer concentration in the polymer discharge reaction zone ([H]/[Olefin monomer]) is reduced compared to the ratio of the hydrogen ...

SOLID CATALYST COMPONENT FOR USE IN OLEFIN POLYMERISATION, CATALYST, AND APPLICATION THEREOF

Provided in the present invention is a solid catalyst component for use in olefin polymerisation, comprising Mg, Ti, a halogen, and at least one electron donor, the electron donor being a 2-substituted amino-phenyl ester compound selected from general formula (I). Also disclosed in the present invention are a catalyst comprising the solid catalyst component, and an application for the catalyst in olefin polymerisation, particularly in propylene polymerization. Also provided in the present invention is a high activity catalyst, said catalyst being able to obtain polypropylene of high isotacticity and wide molecular weight distribution, and not requiring an external electron donor to obtain high isotacticity polypropylene; during polymerization, Al/Ti and Al/Si are reduced, the polymerization time is lengthened, and high activity can still be maintained, suitable for producing low-ash polymers. 2. The solid catalyst component according to claim 1 , wherein the electron donor further includes an electron donor B selected from a Lewis base compound containing one or more electronegative groups.3. The solid catalyst component according to claim 2 , wherein the electron donor A and B have a molar ratio of 0.01 to 100.4. The solid catalyst component according to claim 1 , wherein in general formula (I) claim 1 , R claim 1 , R claim 1 , Rand R4 are the same or different and are selected from: H claim 1 , halogen claim 1 , C-C(linear or branched alkyl claim 1 , cycloalkyl claim 1 , alkenyl claim 1 , ester group claim 1 , phenyl claim 1 , alkylphenyl claim 1 , phenylalkyl claim 1 , indenyl claim 1 , benzyl claim 1 , halo or alkyl claim 1 , cycloalkyl claim 1 , phenyl claim 1 , alkylphenyl claim 1 , phenylalkyl claim 1 , indenyl or benzyl group substituted with N claim 1 , O claim 1 , S claim 1 , P claim 1 , Si heteroatoms claim 1 , or a heterocyclic aryl substituent);{'sup': 1', '2', '3', '4, 'wherein two or more of R, R, Rand Rmay be bonded to each other to form a saturated ...

POLYPROPYLENE FOR FOAM AND POLYPROPYLENE FOAM

The present invention is concerned with a polypropylene composition comprising a polypropylene base resin, the polypropylene composition having —a XHU content of less than 1.25 wt.-%; —a F30 melt strength of at least 30 cN, determined in the Rheotens test at 200° C.; and —a melt extensibility v30 of at least 200 m/s, determined in the Rheotens test at 200° C. In another aspect the present invention is concerned with a polypropylene composition having an MFR (2.16 kg, 230° C., ISO 1133) of 1.0 to 5.0 g/10 min comprising a polypropylene base resin, the polypropylene base resin being obtainable by producing an intermediate polypropylene having an MFR (2.16 kg, 230° C., ISO 1133) of 0.5 to 2.5 g/10 min in the presence of an asymmetric catalyst; mixing the intermediate polypropylene with peroxide and at least one diene at a temperature of 20 to 90° C. for at least 2 minutes to form a pre-mixed material; melt mixing the pre-mixed material in a melt mixing device at a barrel temperature in the range of 180 to 300° C., whereby the melt mixing device is a melt mixing device includes a feed zone, a kneading zone and a die zone, whereby an initial barrel temperature T1 is maintained in the feed zone, a barrel temperature T2 is maintained in the kneading zone and a die barrel temperature T3 is maintained in the die zone, whereby the barrel temperatures T1, T2, and T3 satisfy the following relation: T1 Подробнее

NUCLEATING AGENTS, METHODS FOR THEIR PRODUCTION, AND ASSOCIATED POLYMER COMPOSITIONS

A method of manufacture of zinc monoglycerolate containing an incorporated modifier, and the product, the zinc monoglycerolate being in the form of agglomerates of crystallites, wherein the crystallite size based on the average coherence domain length is not more than 30 nm in the <100> direction, and not more than 60 nm in the <011> direction, as determined by the Scherrer equation via powder X-ray diffraction; and the aspect ratio computed by <100>/<011> coherent domain lengths is less than 0.65, preferably less than 0.56, in particular less than 0.44. Polymers containing this nucleating agent and methods for their production are also described. The zinc monoglycerolate is useful as a nucleating agent, and is very effective at low loading levels in polymers such as polypropylene. 1: A zinc monoglycerolate in the form of agglomerates of crystallites , wherein:a crystallite size of the zinc monoglycerolate, based on average coherence domain length, is less than 30 nm in the <100> direction (size along the <100> zone axis), and less than 60 nm in the <011> direction (size along the <100> zone axis), as determined by the Scherrer equation via powder X-ray diffraction; andan aspect ratio of the zinc monoglycerolate, computed by <100>/<011> coherent domain lengths, is less than 0.65.2: The zinc monoglycerolate according to claim 1 , comprising a modifier.3: The zinc monoglycerolate according to claim 2 , wherein the modifier is a glycerol carboxylate ester.4: The zinc monoglycerolate according to claim 3 , wherein the glycerol carboxylate ester is a saturated fatty acid ester of glycerol.5: The zinc monoglycerolate according to claim 4 , wherein the glycerol carboxylate ester is glycerol monostearate.6: The zinc monoglycerolate according to claim 2 , wherein an amount of modifier is between 1.0 and 5.0 mol % with respect to the zinc monoglycerolate.7: A zinc monoglycerolate in the form of agglomerates of crystallites claim 2 , comprising between 1.0 and 5.0 mol % of a ...

CATALYST COMPONENT FOR OLEFIN POLYMERIZATION AND CATALYST CONTAINING CATALYST COMPONENT AND USE THEREOF

A catalyst component for olefin polymerization, comprising Mg, Ti, a halogen and an electron donor, wherein the electron donor is at least one unsaturated ring-substituted diacid ester compound. Also provided is a catalyst containing the catalyst component and the use of the catalyst in an olefin polymerization, e.g., propylene polymerization. 4. The catalyst component for olefin polymerization according to claim 1 , wherein said compounds of the general formula group (I) are selected from the group consisting of the following compounds:diethyl 3,5-di phenyl 2H pyrrole-2,2-dicarboxylate; diethyl 3-(3-chlorophenyl)-5-methyl-pyrrole-2,2-dicarboxylate; diethyl 3-(3-bromophenyl)-5-methyl-pyrrole-2,2-dicarboxylate; diethyl-3-3-(p-chlorophenyl)-5-phenyl-2H-pyrrole-2,2-dicarboxylate; dimethylfluorene-9,9-dicarboxylate; diethylfluorene-9, 9-dicarboxylate; di-n-propyl fluorene-9,9-dicarboxylate; diisopropyl fluorene-9,9-dicarboxylate; di-n-butyl fluorene-9, 9-dicarboxylate; di-isobutyl fluorene-9,9-dicarboxylate; di-n-pentyl fluorene-9,9-dicarboxylate; di-n-hexyl fluorene-9,9-dicarboxylate; di-n-heptyl fluorene-9,9-dicarboxylate; di-n-octyl fluorene-9,9-dicarboxylate; 9-methyl carboxylate-9-ethyl carboxylate-fluorene; 9-methyl carboxylate-9-n-propyl carboxylate-fluorene; 9-methyl carboxylate-9-isopropyl carboxylate-fluorene; 9-methyl carboxylate-9-n-butyl carboxylate-fluorene; 9-methyl carboxylate-9-isobutyl carboxylate-fluorene; 9-ethyl carboxylate-9-n-propyl carboxylate-fluorene; 9-ethyl carboxylate-9-isopropyl carboxylate-fluorene; 9-ethyl carboxylate-9-n-butyl carboxylate-fluorene; 9-ethyl carboxylate-9-isobutyl carboxylate-fluorene-dimethyl 4H-benzo[g]thia<2,3-e> indazole-4,4-dicarboxylate; diethyl-5-phenyl-3 (p-toluene)-2H-pyrrole-2,2-carboxylate; diethyl-3 (p-methoxyphenyl)-5-phenyl-2H-pyrrole-2,2-dicarboxylate; diethyl 5-(p-nitro)-3-phenyl-2H-pyrrole-2,2-dicarboxylate; diethyl-2,3-diphenyl-1H-indene-1,1-dicarboxylate; diethyl-2-phenyl-1H-indene-1,1-dicarboxylate; di ...

Polymerization Using a Spiral Heat Exchanger

This invention relates to a polymerization process for forming polymer comprising: contacting (typically in a solution or slurry phase), a monomer and a catalyst system in a reaction zone comprising at least one spiral heat exchanger and recovering polymer, wherein the monomer, the catalyst system and the polymer flow through the at least one spiral heat exchanger in a cross-flow direction relative to spirals of the at least one spiral heat exchanger.

Catalyst Pretreatment and Feeding System for Polypropylene Production

A process and system for pre-polymerizing propylene are disclosed. A first catalyst suspension is formed by mixing catalyst particles with a hydrocarbon that is a saturated hydrocarbon or propylene. Various other catalyst components are added to the first catalyst suspension, and the first catalyst suspension is then pre-polymerized under pre-polymerization conditions to form a pre-polymerized catalyst suspension that is introduced to a polymerization reactor or a storage tank. The saturated hydrocarbon can be propane, mixed butanes, or mixture thereof.

PROCESS FOR THE POLYMERIZATION OF OLEFINS

The present invention relates to a process for the continuous preparation of a polyolefm in a reactor from one or more α-olefm monomers of which at least one is ethylene or propylene, wherein the reactor comprises a fluidized bed, an expanded section located at or near the top of the reactor, a distribution plate located at the lower part of the reactor and an inlet for a recycle stream located under the distribution plate, wherein the process comprises—feeding a polymerization catalyst to the fluidized bed in the area above the distribution plate—feeding the one or more α-olefm monomers to the reactor—with-drawing the polyolefm from the reactor—circulating fluids from the top of the reactor to the bottom of the reactor, wherein the circulating fluids are cooled using a heat exchanger, resulting in a cooled recycle stream comprising liquid, and wherein the cooled recycle stream is introduced into the reactor using the inlet for the recycle stream wherein a stream comprising a thermal run away reducing agent (TRRA-containing stream) is introduced into the expanded section during at least part of the polymerization process, wherein said TRRA-containing stream is brought into contact with at least part of the interior surface of the expanded section. 1. A process for the continuous preparation of a polyolefin in a reactor from one or more α-olefin monomers of which at least one is ethylene or propylene ,wherein the reactor comprises a fluidized bed, an expanded section located at or near the top of the reactor, a distribution plate located at the lower part of the reactor and an inlet for a recycle stream located under the distribution plate feeding a polymerization catalyst to the fluidized bed in the area above the distribution plate', 'feeding the one or more α-olefin monomers to the reactor', 'withdrawing the polyolefin from the reactor', 'circulating fluids from the top of the reactor to the bottom of the reactor, wherein the circulating fluids are cooled using a ...

PROCESS FOR THE POLYMERIZATION OF A POLYOLEFIN

The present invention relates to a process for the polymerization of a polyolefin, preferably polypropylene, in a polymerization reactor by contacting one or more olefins, preferably propylene, with a catalyst system in said reactor while stirring, said catalyst system comprising: a procatalyst comprising 1) a magnesium-containing support, 2) titanium, 3) a phthalate-free internal electron donor; and 4) optionally an activator; wherein said procatalyst is obtained by the following process: i) contacting a compound R, MgX—, with an alkoxy- or aryloxy-containing silane compound to give a first intermediate reaction product, being a solid Mg(OR)X-x, Ris the same as Rbeing a linear, branched or cyclic hydrocarbyl group independently selected from alkyl, alkenyl, aryl, aralkyl, alkoxycarbonyl or alkylaryl groups, and one or more combinations thereof; wherein said hydrocarbyl group may be substituted or unsubstituted, may contain one or more heteroatoms and preferably has between 1 and 20 carbon atoms; wherein Xand Xare each independently a halide; z is in a range of larger than 0 and smaller than 2, being 0 Подробнее

METHODS FOR PRODUCING GRAPHENE FROM COAL

A method of preparing graphene from coal can include thermally processing raw coal and, after the coal has been at least partially cooled from thermal processing, forming reduced graphene oxide from the coal. 1. A method of producing reduced graphene oxide from coal , the method comprising:thermally processing coal at a temperature of at least about 300° F.;oxidizing the thermally processed coal to form coal oxide; andforming reduced graphene oxide from the coal oxide, the reduced graphene oxide comprising a predetermined concentration of less than about 15 atomic % of one or more impurity atoms.2. The method of claim 1 , wherein forming reduced graphene oxide from the coal oxide comprises:centrifuging the coal oxide;collecting precipitate from the coal oxide after centrifuging, the precipitate comprising graphene oxide; andreducing the graphene oxide to form reduced graphene oxide.3. The method of claim 1 , wherein oxidizing the coal to form a coal oxide comprises mixing the coal with at least one of sulfuric acid claim 1 , nitric acid claim 1 , or potassium permanganate claim 1 , or hydrogen peroxide to form the coal oxide.4. The method of claim 3 , wherein mixing the coal with at least one of sulfuric acid claim 3 , nitric acid claim 3 , potassium permanganate claim 3 , or hydrogen peroxide to form the coal oxide comprises:mixing the coal with at least one of sulfuric acid and nitric acid;stirring the coal mixed with at least one of the sulfuric acid and the nitric acid;mixing potassium permanganate to the coal mixed with at least one of the sulfuric acid and the nitric acid;stirring the coal mixed with the potassium permanganate and at least one of the sulfuric acid and the nitric acid;diluting, with water, the coal mixed with the potassium permanganate and at least one of the sulfuric acid and the nitric acid to form a solution;mixing the solution with hydrogen peroxide;performing a first centrifugation of the solution mixed with the hydrogen peroxide; andafter ...

OXIDATIVE COUPLING OF METHANE FOR OLEFIN PRODUCTION

The present disclosure provides natural gas and petrochemical processing systems, including oxidative coupling of methane reactor systems that may integrate process inputs and outputs to cooperatively utilize different inputs and outputs in the production of higher hydrocarbons from natural gas and other hydrocarbon feedstocks. The present disclosure also provides apparatuses and methods for heat exchange, such as an apparatus that can perform boiling and steam super-heating in separate chambers in order to reach a target outlet temperature that is relatively constant as the apparatus becomes fouled. A system of the present disclosure may include an oxidative coupling of methane (OCM) subsystem that generates a product stream comprising compounds with two or more carbon atoms, and a dual compartment heat exchanger downstream of, and fluidically coupled to, the OCM subsystem. 1. A method for producing butadiene , comprising:{'sub': 4', '2', '4', '2', '2', '2', '4', '2+, '(a) directing methane (CH) and oxygen (O) into an oxidative coupling of methane (OCM) reactor that permits the CHand the Oto react to yield an OCM product stream comprising hydrogen (H), carbon monoxide (CO), carbon dioxide (CO), unreacted CH, and hydrocarbon compounds with two or more carbon atoms (C compounds), including ethylene;'}(b) directing at least a portion of the OCM product stream into a dimerization reactor that permits at least a portion of the ethylene to react to produce a dimerization product stream comprising butene-1; and{'sub': '4', '(c) directing the dimerization product stream into a Cdehydrogenation reactor that converts the butene-1 to butadiene.'}2. The method of claim 1 , further comprising recycling unreacted ethylene to the dimerization reactor.3. The method of claim 1 , wherein the CHis provided by a stream comprising natural gas.4. The method of claim 1 , further comprising directing a stream comprising ethane to a post-bed cracking zone of the OCM reactor.5. The method ...

METHOD OF PREPARING SUPPORTED METALLOCENE CATALYST

A method of preparing a supported metallocene catalyst capable of more effectively preparing a polyolefin which may be preferably used for blow molding, etc., because its molecular weight distribution is such that polymer elasticity is increased to improve swell, is provided. 2. The method of preparing the supported metallocene catalyst of claim 1 , wherein the supporting is performed by mixing the support claim 1 , the metallocene catalyst claim 1 , and the molecular weight modifier composition claim 1 , and stirring a resulting mixture at a temperature of 30° C. to 100° C. for 1 hour to 12 hours.3. The method of preparing the supported metallocene catalyst of claim 1 , wherein the molecular weight modifier composition is supported in an amount of about 1 mol % to 85 mol % claim 1 , based on the total weight of the metallocene compound.4. The method of preparing the supported metallocene catalyst of claim 1 , wherein Rand Rin Chemical Formula 1 are each independently selected from the group consisting of hydrogen claim 1 , methyl claim 1 , ethyl claim 1 , butyl claim 1 , and t-butoxy hexyl.5. The method of preparing the supported metallocene catalyst of claim 1 , wherein R claim 1 , R claim 1 , and Rin Chemical Formula 2 are each independently an isobutyl group.6. The method of preparing the supported metallocene catalyst of claim 1 , wherein Min Chemical Formula 1 is selected from the group consisting of titanium claim 1 , zirconium claim 1 , and hafnium.7. (canceled)9. The method of preparing the supported metallocene catalyst of claim 1 , wherein the support is selected from the group consisting of silica claim 1 , silica-alumina claim 1 , and silica-magnesia.10. The method of preparing the supported metallocene catalyst of claim 1 , wherein the support is one on which a first aluminum-containing cocatalyst of the following Chemical Formula 12 is supported:{'br': None, 'sup': '18', 'sub': 'n', '—[—Al(R)—O—]—\u2003\u2003Chemical Formula 12'}in Chemical Formula 12 ...