ПРОИЗВОДСТВО ПОЛИЭТИЛЕНОВЫХ ИЗДЕЛИЙ С УЛУЧШЕННЫМИ ЖЕСТКОСТЬЮ, УДАРНОЙ ВЯЗКОСТЬЮ И ПЕРЕРАБАТЫВАЕМОСТЬЮ

Изобретение относится к этилен/альфа-олефиновым сополимерам. Полимер содержит этилен и по меньшей мере один альфа-олефин с 4-20 атомами углерода. Полимер имеет отношение индекса расплава (ОИР) больше чем приблизительно 40. Полимер также имеет значение Mw1/Mw2 по меньшей мере приблизительно 2,0, где Mw1/Mw2 представляет собой отношение средневесовой молекулярной массы (Мw) для первой половины кривой фракционирования при элюировании с повышением температуры (TREF) из кросс-фракционной хроматографии (CFC) к Mw для второй половины кривой TREF. Полимер также имеет значение Tw1-Tw2 меньше чем приблизительно -15°С, где Tw1-Tw2 представляет собой разницу средневзвешенной температуры элюирования (Tw) для первой половины кривой TREF и Tw для второй половины кривой TREF. Технический результат – получение полимера с улучшенными физическими свойствами. 9 з.п. ф-лы, 8 ил., 10 табл., 10 пр.

АКТИВАТОРЫ КАТАЛИЗАТОРОВ ПОЛИМЕРИЗАЦИИ, СПОСОБ ИХПРИГОТОВЛЕНИЯ И ИХ ПРИМЕНЕНИЕ В ПРОЦЕССАХ ПОЛИМЕРИЗАЦИИ

Изобретение относится к активаторам для катализаторов полимеризации. Описывается каталитическая система, включающая металлоценовый катализатор полимеризации и активатор, где активатор включает гетероциклическое соединение, которое выбрано из группы, включающей пирролы, имидазолы, пиразолы, пирролины, пирролидины, пурины, карбазолы, индолы, фенилиндолы, 2,5-диметилпирролы, 3-пентафторфенилпиррол, 4,5,6,7-тетрафториндол, 3,4-дифторпирролы и их сочетания, в комбинации с алюминийсодержащим соединением, где алюминийсодержащее соединение представляет собой алюмоксан или соединение алкилалюминия, представленное формулой AlR3, где каждый R независимо обозначает замещенную или незамещенную алкильную группу. Описаны также способ полимеризации с использованием данной каталитической системы и получаемый полимер. 3 н. и 14 з.п. ф-лы, 3 табл.

СПОСОБ ГИДРОГЕНИЗАЦИИ ДИЕНОВОГО ПОЛИМЕРА

Изобретение представляет собой усовершенствование процесса гидрогенизации диенового полимера контактированием полимера в присутствии водорода с титановым катализатором гидрогенизации. Усовершенствование состоит в предотвращении изменения цвета гидрогенизированного полимера, обработанного водой, перекисью или спиртом в отсутствие кислорода, и в добавлении к полимеру нефенольного антиоксиданта. 7 з.п.ф-лы, 4 табл.

ТВЁРДАЯ ПОЛИАЛЮМОКСАНОВАЯ КОМПОЗИЦИЯ, КАТАЛИЗАТОР ПОЛИМЕРИЗАЦИИ ОЛЕФИНОВ, СПОСОБ ПОЛУЧЕНИЯ ОЛЕФИНОВЫХ ПОЛИМЕРОВ И СПОСОБ ПОЛУЧЕНИЯ ТВЁРДОЙ ПОЛИАЛЮМОКСАНОВОЙ КОМПОЗИЦИИ

Изобретение относится к способу получения твердой полиалюмоксановой композиции. Способ включает стадию контактирования раствора полиалюмоксановой композиции (А), включающего полиалкилалюмоксан, триалкилалюминий и углеводородный растворитель, по крайней мере, с одним органическим соединением (В), содержащим элементы 15-17 группы периодической таблицы, и стадию осаждения твердой полиалюмоксановой композиции реакцией соединений с алюминий-углеродной связью, присутствующих в растворе полиалюмоксановой композиции (А), с органическим соединением (В) при нагревании. Нагревание осуществляют от 40°С до 200°С. Органическое соединение (В) представляет собой кислородосодержащее органическое соединение (С). Также предложен способ получения твердой полиалюминоксановой композиции. Изобретение позволяет получить твердые полиалюмоксановые композиции, которые применяют в качестве носителя и сокатализатора полимеризации олефинов, обладающие очень низкой растворимостью в растворителях, что подавляет процесс ...

ПРОИЗВОДСТВО ПОЛИЭТИЛЕНОВЫХ ИЗДЕЛИЙ С УЛУЧШЕННЫМИ ЖЕСТКОСТЬЮ, УДАРНОЙ ВЯЗКОСТЬЮ И ПЕРЕРАБАТЫВАЕМОСТЬЮ

Изобретение относится к этилен/альфа-олефиновым сополимерам. Полимер содержит этилен и по меньшей мере один альфа-олефин с 4-20 атомами углерода. Полимер имеет отношение индекса расплава (ОИР) больше чем приблизительно 40. Полимер также имеет значение Mw1/Mw2 по меньшей мере приблизительно 2,0, где Mw1/Mw2 представляет собой отношение средневесовой молекулярной массы (Мw) для первой половины кривой фракционирования при элюировании с повышением температуры (TREF) из кросс-фракционной хроматографии (CFC) к Mw для второй половины кривой TREF. Полимер также имеет значение Tw1-Tw2 меньше чем приблизительно -15°С, где Tw1-Tw2 представляет собой разницу средневзвешенной температуры элюирования (Tw) для первой половины кривой TREF и Tw для второй половины кривой TREF. Технический результат – получение полимера с улучшенными физическими свойствами. 9 з.п. ф-лы, 8 ил., 10 табл., 10 пр.

СПОСОБ ПОЛУЧЕНИЯ ЭТИЛЕНОВОГО ПОЛИМЕРА

Способ получения этилен/1-бутенового или этилен/1-бутен/диенового эластомера суспензионной полимеризацией мономеров в полимеризационной среде, состоящей в основном из избытка 1-бутена, который удерживают в жидкой форме, осуществляемый в присутствии катализатора на основе металлоценового соединения титана, циркония или гафния. Этот способ свободен от возможности загрязнения реактора, а его осуществление позволает выделять полимер без использования водяного пара в качестве инертного агента, содействующего отпарке. 12 з.п. ф-лы, 2 табл.

СПОСОБЫ РЕГУЛИРОВАНИЯ ВЯЗКОСТИ ПОЛИ-АЛЬФА-ОЛЕФИНОВ

... 1. Способ получения поли-альфа-олефина, причем указанный способ включает стадию полимеризации, по меньшей мере, одного С-C-мономера в присутствии алюмоксана, активатора и металлоцена с получением поли-альфа-олефина, где молярное отношение алюмоксана к металлоцену составляет менее 250:1.2. Способ по п.1, где молярное отношение алюмоксана к металлоцену составляет менее 100:1.3. Способ получения поли-альфа-олефина по п.1, включающий стадию полимеризации, по меньшей мере, одного С-С-мономера в присутствии алкилалюмоксана, борорганического соединения и металлоцена с получением поли-альфа-олефина, где молярное отношение алюмоксана к комбинации борорганического соединения и металлоцена составляет менее 125:1.4. Способ по п.3, где молярное отношение алюмоксана к комбинации борорганического соединения и металлоцена составляет менее 50:1.5. Способ по любому одному из пп.1-4, где поли-альфа-олефин имеет кинематическую вязкость менее 500 сСт при 100°С.6. Способ по любому одному из пп.1-4, где металлоцен ...

Katalysatorsysteme und Verfahren zur Herstellung von Polyolefinen mit breiter Molekulargewichtverteilung

Verfahren zur Herstellung von alpha-Olefinpolymeren

Geträgerte Katalysatoren für die Polymerisation von Olefinen

Katalysatoren, Verfahren zur Herstellung derselben und Verfahren zur deren Anwendung

Katalysator zur Olefinpolymerisation

Geträgertes Katalysatorsystem, seine Herstellung und seine Verwendung zur Polymerisation von Olefinen

BIMETALLISCHE KATALYSATOREN ZUR OLEFIN-POLYMERISATION

CATALYST ON POLYMER CARRIERS FOR THE POLYMERIZATION OF OLEFINEN

TRANSITION METAL CONNECTION

CATALYST AND PREPOLYMERE FOR THE POLYMERIZATION OF OLEFINEN AND FROM THIS AVAILABLE ETHYLS (CO) POLYMER.

COMPONENTS AND CATALYSTS TO OLEFINPOLYMERISATION

CATALYST FOR THE OLEFINPOLYMERISATION, PROCEDURE FOR ITS PRODUCTION AND ITS USE

CATALYST SYSTEM, PROCEDURE FOR ITS PRODUCTION AND ITS USE IN THE OLEFINPOLYMERISATION

POLYMERIZATION PROCEDURE OF HIGH ACTIVITY USING A METALLOCENS

POLYMER COMPOSITION, PROCEDURE FOR YOUR PRODUCTION AND FROM THIS MANUFACTURE OF FILMS

CATALYST TO OLEFINPOLYMERISATION

GETRÄGERTES CATALYST SYSTEM, PROCEDURE FOR ITS PRODUCTION AND ITS USE FOR THE POLYMERIZATION OF OLEFINEN

IONI METALLOCENKATALYSATOREN ON CARRIERS FOR OLEFINPOLYMERISATION

PROCEDURE FOR THE PRODUCTION OF A CATALYTIC SYSTEM AND PROCEDURE FOR OLEFIN (CO) THE POLYMERIZATION

SALT-WELL-BEHAVED CHEMICAL COMPOUND, PROCEDURE FOR THEIR PRODUCTION AND THEIR USE IN CATALYST SYSTEMS FOR THE PRODUCTION OF POLYOLEFINS

PROCEDURE FOR OLEFINPOLYMERISATION, METALLOCENKATALYSATOR FOR IT AND COKATALYSATOR AROUND THE PROMETALLOCENKATALYSATOR FOR ACTIVATING

FIRM ACTIVATION CARRIER FOR THE METALLOCENKATALYSATOREN IN THE OLEFINPOLYMERISATION, MANUFACTURING PROCESSES, CATALYST SYSTEM AND EQUIVALENT POLYMERIZATION PROCEDURE

CATALYST SYSTEMS AND PROCEDURES FOR THE PRODUCTION OF POLYOLEFINS WITH BROAD MOLECULAR WEIGHT DISTRIBUTION

CATALYST COMPOSITION AND PROCEDURE FOR THE PRODUCTION OF POLYOLEFINS

PRODUCING POLYOLEFIN PRODUCTS

Catalyst systems and methods for making and using the same. A method of polymerizing olefins to produce a polyolefin polymer with a multimodal composition distribution, includes 5 contacting ethylene and a comonomer with a catalyst system. The catalyst system includes a first catalyst compound and a second catalyst compound that are co-supported to form a commonly supported catalyst system. The first catalyst compound includes a compound with the general formula (C5HaRIb)(C 5HcR2 d)HfX 2 . The second catalyst compound comprises the following formula: SiR3 2 R4\ Zr X R - SiR 10 4 (A) wherein each R3 or R4 is independently H, a hydrocarbyl group, a substituted hydrocarbyl group, or a heteroatom group, wherein each R3 or R4 may be the same or different, and each X is independently a leaving group selected from a labile hydrocarbyl, a substituted hydrocarbyl, a heteroatom group, or a divalent radical that links to an R group.

Method of producing polyethylene and polyethylene thereof

A system and method of producing polyethylene, including: polymerizing ethylene in presence of a catalyst system in a reactor to form polyethylene, wherein the catalyst system includes a first catalyst and a second catalyst; and adjusting reactor conditions and an amount of the second catalyst fed to the reactor to control melt index (MI), density, and melt flow ratio (MFR) of the polyethylene.

Producing polyolefin products

Catalyst systems and methods for making and using the same are described. A method includes selecting a catalyst blend using a blend polydispersity index (bPDI) map. The polydispersity map is generated by generating a number of polymers for at least two catalysts. Each polymer is generated at a different hydrogen to ethylene ratio. At least one catalyst generates a higher molecular weight polymer and another catalyst generates a lower molecular weight polymer. A molecular weight for each polymer is measured. The relationship between the molecular weight of the polymers generated by each of the catalysts and the ratio of hydrogen to ethylene is determined. A family of bPDI curves for polymers that would be made using a number of ratios of a blend of the at least two catalysts for each of a number of ratios of hydrogen to ethylene. A ratio for the catalyst blend of the catalysts that generates a polymer having a bPDI that matches a polymer fabrication process is selected, and the product ...

Producing polyolefin products

Catalyst systems and methods for making and using the same. A method of polymerizing olefins to produce a polyolefin polymer with a multimodal composition distribution, includes contacting ethylene and a comonomer with a catalyst system. The catalyst system includes a first catalyst compound and a second catalyst compound that are co-supported to form a commonly supported catalyst system. The first catalyst compound includes a compound with the general formula (C ...

A catalyst composition

Fluorenyl-containing metallocenes for use in olefin polymerization

Process for the polymerization or copolymerization of ethylene

PROCESS FOR PRODUCTION OF A HIGH MOLECULAR WEIGHT ETHYLENE -OLEFIN ELASTOMER WITH A METALLOCENE ALUMOXANE CATALYST

Saline chemical composition, method for producing the same and the use thereof in catalyst systems for producing polyolefins

Polymeric supported catalysts

HALOGEN SUBSTITUTED CATALYST SYSTEM FOR OLEFIN POLYMERIZATION

A catalyst system is provided. In one aspect, the catalyst system includes one or more polymerization catalysts and at least one activator. The activator comprises one or more heterocyclic nitrogen-containing ligands coordinated to a Group 13 atom, wherein the activator is a reaction product of one or more alkyl substituted Group 13 atom-containing compounds and one or more heterocyclic nitrogen-containing compounds, the one or more heterocyclic nitrogen-containing ligands represented by: wherein each substituent X2, X3, X4, X5, X6, and X7 is independently selected from the group consisting of hydrogen, chlorine, fluorine, iodine, and bromine. The catalyst system may be supported or non-supported.

SILOXY SUBSTITUTED COCATALYST ACTIVATORS FOR OLEFIN POLYMERIZATION

This description addresses ionic compositions of matter comprising cations [Ct]+ and anions [A]-, in which the anion comprises a central core Group-13 element bound to fluoroaryl ligands. At least one of the fluoroaryl ligands is substituted with a siloxy group represented by the symbols -SiOR3, wherein R is a C1-C30 hydrocarbyl or hydrocarbylsilyl substituent. [Ct]+ may be selected from any cation capable of use with olefin polymerization catalysts and typically will be anilinium or ammonium trityl carbenium cations, Group-11 metal cations, silylium cations, the cations of the hydrated salts of Group-1 or -2 metals, and derivatives of the foregoing anilinium, ammonium, trityl carbenium, and silylium cations containing C1-C20 hydrocarbyl, hydrocarbylsilyl, or hydrocarbylamine substituents for one or more hydrogen atoms of the cations. The ionic compositions described can be used to activate olefin polymerization catalysts, and can be prepared to dissolve in aliphatic solvents. Syntheses ...

POLYMERIZATION CATALYST ACTIVATOR COMPLEXES AND THEIR USE IN A POLYMERIZATION PROCESS

The present invention includes polymerization catalyst activator complexes which include at least Group 13 metals. The activator complexes of the invention are prepared, in general, by reacting a halogenated aryl Group 13 metal compoudn with a diol. The activaor compound is represented in one aspect by Formula (I) wherein each Mi is a Group 13 atom; each R3, R3', R3'', and R3''' group is independently selected from, for example, C1 to C30 alkyls, halogenated C1 to C30 alkyls, C6 to C60 halogenated aryls; with the proviso that at least one R3, R3' R3'', and R3''' is a fluorinated C6 to C60 aryl group; R1 and R2 are independently selected from substituted or unsubstituted C1 to C100 hydrocarbylenes; R, when present, is a substituted or unsubstituted C30 hydrocarbylene; wherein when R is absent, R1 and R2 are bound together; and x is 0 or an integer from 1 to 100.

METALLOCENE RANDOM COPOLYMERS WITH COOL TEMPERATURE IMPACT PROPERTIES

A metallocene random copolymer of propylene and ethylene in which the duc tile/brittle transition temperature of a molded article made from the copoly mer may be in the range of from about 200F (-70C) to about 4O0F (40C). The h aze level of the molded article may be less than about 10 percent for an 80- mil (0.2cm) thick plaque. The metallocene random copolymer may further inclu de a clarifier.

SOLID POLYALUMINOXANE COMPOSITION, OLEFIN POLYMERIZATION CATALYST, OLEFIN POLYMER PRODUCTION METHOD AND SOLID POLYALUMINOXANE COMPOSITION PRODUCTION METHOD

An object of the invention is to provide a solid polyaluminoxane composition suitably used as a cocatalyst and a catalyst carrier in combination with an olefin oligomerization or polymerization catalyst, without the use of solid inorganic carriers such as silica. The solid polyaluminoxane composition of the invention includes a polyalkylaluminoxane and a trialkylaluminum, and has a solubility in n-hexane at 25°C of less than 0.50 mol% as measured by a specific method (i), a solubility in toluene at 25°C of less than 1.0 mol% as measured by a specific method (ii), and a 13 mol% or more molar fraction of alkyl groups derived from the trialkylaluminum moieties relative to the total number of moles of alkyl groups derived from the polyalkylaluminoxane moieties and the alkyl groups derived from the trialkylaluminum moieties as measured with respect to tetrahydrofuran-d8 soluble components by a specific method (iii).

HIGHER DENSITY POLYOLEFINS WITH IMPROVED STRESS CRACK RESISTANCE

Disclosed herein are polymerization processes for the production of olefin polymers. These polymerization processes can employ a catalyst system containing two or three metallocene components, resulting in ethylene-based copolymers that can have a medium density and improved stress crack resistance.

METHOD OF PRODUCING POLYETHYLENE AND POLYETHYLENE THEREOF

A system and method of producing polyethylene, including: polymerizing ethylene in presence of a catalyst system in a reactor to form polyethylene, wherein the catalyst system includes a first catalyst and a second catalyst; and adjusting reactor conditions and an amount of the second catalyst fed to the reactor to control melt index (MI), density, and melt flow ratio (MFR) of the polyethylene.

PRODUCING POLYOLEFIN PRODUCTS

Catalyst systems and methods for making and using the same are described. A method includes selecting a catalyst blend using a blend polydispersity index (bPDI) map. The polydispersity map is generated by generating a number of polymers for at least two catalysts. Each polymer is generated at a different hydrogen to ethylene ratio. At least one catalyst generates a higher molecular weight polymer and another catalyst generates a lower molecular weight polymer. A molecular weight for each polymer is measured. The relationship between the molecular weight of the polymers generated by each of the catalysts and the ratio of hydrogen to ethylene is determined. A family of bPDI curves for polymers that would be made using a number of ratios of a blend of the at least two catalysts for each of a number of ratios of hydrogen to ethylene. A ratio for the catalyst blend of the catalysts that generates a polymer having a bPDI that matches a polymer fabrication process is selected, and the product ...

CATALYST SYSTEM OF ENHANCED PRODUCTIVITY

... 2078665 9114713 PCTABS00007 This invention relates to catalyst systems, and a method for using such system, for the enhanced production of homo and copolymer products of olefin, diolefin and/or acetylenically unsaturated monomers. This invention catalyst system comprises a Group III-A element compound for improving the productivity of an olefin polymerization catalyst which is the reaction product of a metallocene of a Group IV-B transition metal and an ionic activator compound comprising a cation capable of donating a proton and an anion which is bulky, labile and noncoordinateable with the Group IV transition metal cation produced upon reaction of the metallocene and activator compound to form the catalyst component of the catalyst system.

CATALYST SYSTEM PREPARATION PROCESS, OLEFINS (CO)PLYMERISATION PROCESS AND (CO)POLYMERS OF AT LEAST ONE OLEFIN

Procédé de préparation d'un système catalytique, procédé de (co)polymérisation d'oléfines et (co)polymères d'au moins une oléfine Procédé de préparation d'un système catalytique selon lequel on prépare un mélange d'un métallocène neutre halogéné dérivé d'un métal de transition choisi parmi les groupes IIIB, IVB, VB et VIB du tableau périodique et d'un composé organoaluminique et on y ajoute un agent ionisant. Procédé de (co)polymérisation selon lequel on prépare un mélange d'un métallocène neutre halogéné tel que défini ci-dessus et d'un composé organoaluminique, on met l'oléfine en contact avec ce mélange et on y ajoute un agent ionisant. Pas de figure.

Polymerization Process

BRANCHED POLYENE COMPOUNDS AND PRODUCTION THEREOF

A branched polyene compound represented by the formula wherein f is an integer of 1-5; R1 and R2 represent hydrogen atoms or alkyl groups of 1-5 carbons: R3 represents a hydrogen atom or an alkyl group of 1-5 carbons or an alkenyl group represented by the formula wherein n is an integer of 1-5; R4, R5 and R6 represent hydrogen atoms or alkyl groups of 1-5 carbons; all of R1, R2 and R3 are not simultaneously hydrogen atoms; and all of R4, R5 and R6 are not simultaneously hydrogen atoms.

PROCESS FOR THE POLYMERIZATION OR COPOLYMERIZATION OF ETHYLENE

In gas phase polymerizations and copolymerizations of ethylene, regents or cofeeds control the molecular weight, expressed as MI (wherein MI is measured according to ASTM D-1238 Condition E), of the resin product. Use of isopentane and electron donating compounds reduce MI; whereas, water and electron withdrawing compounds increase MI.

POLYMERIZATION CATALYST FOR ALPHA-OLEFIN AND METHOD FOR PREPARING POLY-ALPHA-OLEFIN BY USING IT

CATALYST COMPOSITIONS AND PROCESS FOR PREPARING POLYOLEFINS

Catalyst compositions comprising metallocene complexes having polymerisable groups may be used for the preparation of polyolefins. The catalyst compositions may be in the form of polymers comprising the metallocene complex and may be suitably supported on inorganic supports. Polymers having a broad range of density and melt indices as well as low hexane extractables and excellent powder morphology and flowability may be obtained by use of the catalyst compositions. Preferred metallocene complexes are zirconium complexes in which the polymerisable group is vinyl.

PROCESS FOR PRODUCING POLYMERS OF ALKENES BY SUSPENSION POLYMERISATION

A process for producing polymers of alkenes by suspension polymerisation in the presence of catalyst systems where use is made of supported catalyst systems obtainable by A) reacting an inorganic support material with a metal compound of the general formula (I): M1(R1)r(R2)s(R3)t(R4)u, in which M1 is an alkaline or alkaline earth metal or a metal from main group III or IV of the periodic system; R1 is hydrogen, C1-C10 alkyl, C6-C15 aryl, alkyl aryl or aryl alkyl with 1 to 10 C atoms in the alkyl radical and 6 to 20 C atoms in the aryl radical; R2 to R4 are hydrogen, C1-C10 alkyl, C6-C15 aryl, alkyl aryl or aryl alkyl, alkoxy or dialkylamino with 1 to 10 C atoms in the alkyl radical and 6 to 20 C atoms in the aryl radical; r is a whole number from 1 to 4; and s, t and u are whole numbers from 0 to 3, where the sum r+s+t+u corresponds to the valency of M1; B) reacting the material obtained from A) with a metallocene complex in its metal dihalogenide form and a metallocenium ionforming compound ...

PROCESS FOR THE PRODUCTION OF LONG-CHAIN BRANCHED POLYOLEFINS

A process for making a polyethylene having long chain branching by providing ethylene and optionally an alpha olefin having 3 to 18 carbon atoms in a reaction zone containing a metallocene polymerization catalyst under polymerization conditions in the presence of a hydrocarbon interlinking compound in an amount sufficient to provide chain entanglement or long chain branching.

PREPARATION OF SUPPORTED CATALYST USING TRIALKYLALUMINUM-METALLOCENE CONTACT PRODUCTS

A silica-supported metallocene catalyst made from two components is disclosed. The first component is made from dried silica having hydroxyl groups and an alumoxane scurried together and then dried of its solvent. The second component is made by contacting a group 4 metallocene and a trialkylaluminum in a solvent in which the metallocene is insoluble. The two components are then combined to form the metallocene catalyst.

METHOD FOR POLYMERIZATION OF OLEFINS

OBTAINING OF SOLID CATALYTIC SYSTEM

СПОСОБ ПОЛУЧЕНИЯ ПРОДУКТОВ РОСТА ЦЕПИ

В заявке описан способ получения продуктов роста цепи на цинкалкиле посредством катализируемой реакции роста цепи альфа-олефина на цинкалкиле, в котором используют каталитическую систему роста цепи, включающую атом переходного металла 3-10 групп или металл основной группы 3, или комплексные соединения лантанидов или актиноидов и необязательный приемлемый активатор. Эти продукты в дальнейшем могут быть превращены в альфа-олефины замещением алкилов с удлиненной цепью олефином в виде альфа-олефинов в продукте роста цепи на цинкалкиле или в первичные спирты окислением образовавшегося продукта роста цепи на цинкалкиле с получением алкоксидных соединений с последующим гидролизом этих алкоксидов.

СПОСОБ ПОЛУЧЕНИЯ ПРОДУКТОВ РОСТА ЦЕПИ

В изобретении описан способ получения продуктов роста цепи на цинкалкиле посредством катализируемой реакции роста цепи альфа-олефина на цинкалкиле, в котором используют каталитическую систему роста цепи, включающую атом переходного металла 3-10 групп или металл основной группы 3, или комплексные соединения лантанидов или актиноидов и необязательный приемлемый активатор. Эти продукты в дальнейшем могут быть превращены в альфа-олефины замещением алкилов с удлиненной цепью олефином в виде альфа-олефинов в продукте роста цепи на цинкалкиле или в первичные спирты окислением образовавшегося продукта роста цепи на цинкалкиле с получением алкоксидных соединений с последующим гидролизом этих алкоксидов.

КОМПОЗИЦИЯ ДЛЯ ОБЕСПЕЧЕНИЯ РОСТА ЦЕПИ

Предложена каталитическая система роста цепи, представляющая собой композицию цинкалкильных комплексов, которая включает совокупность цинкалкильных соединений и одного или более комплексов металлов, выбранных из переходного металла 3-10 группы, металла 3 основной группы, комплексного соединения лантанида или актиноида, и необязательно приемлемый активатор, где мольное соотношение указанного комплекса металла к цинкалкилу находится в пределах от примерно 1×10-7 до 1×10-1 и где алкильные группы большей части цинкалкильных соединений распределяются согласно статистическому распределению по длинам цепей. По существу, алкильные группы распределяются согласно статистическому распределению по длинам цепей до примерно 200 углеродных атомов по типу пуассоновского, и композиции цинкалкильных комплексов, где алкильные группы, по существу, распределяются по длинам цепей до примерно 50000 углеродных атомов согласно статистическому распределению, подобному распределению Шульца-Флори.

METHOD OF PREPARING OF POWDER POLYETHYLENE PRODUCT

METHOD OF PRODUCING PRODUCTS OF CHAIN GROWTH

CATALYST SYSTEM COMPOSES FOR THE SYNTHESIS OF (CO) BIMODAL OR BROAD POLYETHYLENE ADISTRIBUTION OF THE MOLAR MASSES, SA PREPARATION AND SONUTILISATION

SUPPORTED HYBRID CATALYST

The present invention relates to a supported hybrid catalyst which enables a user to easily produce an olefin polymer exhibiting improved melting strength for improving bubble stability and providing excellent blown-film processing ability, while maintaining the haze characteristic of high transparency. The present invention also relates to a production method of an olefin polymer using the supported hybrid catalyst. COPYRIGHT KIPO 2018 ...

헤테로상 폴리프로필렌 중합체

... (i) 프로필렌 단독중합체 매트릭스 또는 4 중량% 이하의 에틸렌을 갖는 프로필렌 에틸렌 공중합체 매트릭스; 및 (ii) 상기 매트릭스에 분산된, 에틸렌 프로필렌 고무(EPR) 를 포함하는, 단일 부위 촉매작용을 이용하여 수득되고 0.5 내지 100g/10분의 MFR2를 갖는 헤테로상(heterophasic) 프로필렌 에틸렌 공중합체로서, 상기 헤테로상 프로필렌 에틸렌 공중합체는 20 내지 40%의 자일렌 냉 가용성 함량(xylene cold soluble content, XS)을 갖고; 상기 헤테로상 프로필렌 에틸렌 공중합체의 자일렌 냉 가용성 분획(fraction)의 에틸렌 함량은 70 내지 90 중량%이고; 상기 헤테로상 프로필렌 에틸렌 공중합체의 자일렌 냉 가용성 분획은 3.0 dl/g 이상의 고유 점도(intrinsic viscosity, IV)를 갖고; 상기 헤테로상 프로필렌 에틸렌 공중합체의 용융 엔탈피(ΔHm)는 0 내지 130℃의 온도에서 10 내지 30 J/g인, 헤테로상 프로필렌 에틸렌 공중합체.

PROCESS FOR THE PREPARATION OF A PARTICULATE POLYETHYLENE PRODUCT

담지 메탈로센 촉매, 이의 제조방법, 및 이를 이용한 폴리올레핀의 제조방법

... 본 발명은 담지 메탈로센 촉매, 이의 제조방법, 및 이를 이용한 폴리올레핀의 제조방법에 관한 것으로, 붕소를 포함하는 화합물이 화학적 결합을 통해 고정된 담체; 에, 알루미늄을 포함하는 조촉매;와 메탈로센 화합물을 담지시키는 것을 특징으로 하는 담지 메탈로센 촉매, 이의 제조방법, 및 이를 이용한 폴리올레핀의 제조방법을 제공한다.

METHOD PERFECTED FOR CATALYSER SUPPLY, A FEEDER OF CATALYSER AND THE USE OF THEM IN A POLYMERIZATION PROCESS

Zwitterionic compound for use as a catalyst activator, catalyst composition for polymerization of -olefins and polymerization process

A zwitterionic compound for use as a catalyst activator corresponding to the formula: wherein R5 is methyl, phenyl or a mixture of C14-18 alkyl. L+ is a protonated derivative of an element of group 15 of the periodic table of the elements, additionally bearing two hydrocarbyl substituents of from 1 to 50 carbons each, or a positively charged derivative of an element of group 14 of the periodic table of the elements, said group 14 element being substituted with three hydrocarbyl substituents of from 1 to 50 carbons each; R1 is a divalent linking group of from 1 to 40 non-hydrogen atoms; R2 independently each occurrence is a ligand group of from 1 to 50 nonhydrogen atoms with the proviso that in a sufficient number of occurrences to balance charge in the compound, R2 is L+-R1-; R4 is a bridging hydride or halide group or a divalent linking group of from 1 to 40 non-hydrogen atoms; M1 is boron, aluminum or gallium; Arf independently each occurrence is a monovalent, fluorinated ...

POLYMERIC SUPPORTED CATALYSTS

L'invention se rapporte à un système catalyseur comportant un métallocène indényle ponté et substitué, qui est disposé sur un support polymère. Ledit métallocène est activé aux fins de polymérisation par une réaction d'ionisation et il est stabilisé sous forme cationique avec un anion non coordonnateur. Les polymères de propylène produits à l'aide de ces systèmes catalyseurs supportés possèdent des points de fusion et des microstructures polymères similaires aux polymères de propylène produits à l'aide de systèmes catalyseurs analogues, non supportés.

SUPPORTED CATALYST FOR 1-OLEFIN AND 1,4-DIOLEFIN COPOLYMERIZATION

A process using a high activity supported metallocene-alumoxane catalyst, comprising methylalumoxane and bisindenyl zirconium dichloride on a silica support, for the copolymerization of ethylene and 1,4-hexadiene to produce a copolymer having a high concentration of pendant functionalizable groups which may also be used to cross-link the copolymer.

Activator solid support for metallocene catalysts in the polymerization of olefins, a process for preparing such a support, and the corresponding catalytic system and polymerization process

Activator solid support for metallocenes as catalysts in the polymerization of olefins, characterized in that it consists of a group of support particles for a solid catalytic component, which are formed from at least one porous mineral oxide, the said particles having been modified in order to carry, on the surface, aluminum and/or magnesium Lewis-acid sites of formula:groups coming from a functionalization agent having reacted with -OH radicals carried by the base particles of the support, the functionalization reaction having been followed by a fluorination reaction. The catalytic system according to the invention comprises (a) a metallocene catalyst, which has, if required, been subjected to a prealkylation treatment; (b) a cocatalyst; and (c) an activator solid support for metallocene, as defined above, it being possible for the cocatalyst (b) to be absent if the metallocene catalyst (a) has been prealkylated.

Catalyst olefin polymerization and process for olefin polymerization using the same

Disclosed are a catalyst for olefin polymerization comprising (A) a compound of a transition metal in Group IVB of the periodic table which contains a ligand having a cyclopentadienyl skeleton, (B) an organoaluminum compound and any one of (C1) a Br+526 nsted acid; (C2) a material obtained by contacting (c-1) a magnesium compound with (c-2) an electron donor; and (C3) a material obtained by contacting (c-1) a magnesium compound, (c-2) an electron donor and (c-3) an organometallic compound with each other. Also disclosed are processes for polymerizing an olefin in the presence of the above-mentioned catalysts for olefin polymerization. Such catalysts and processes for olefin polymerization as described above are excellent in olefin polymerization activity and economical efficiency.

Heterogeneous metallocene catalysts and use thereof in olefin polymerization process

This invention is related to a method for the preparation of heterogeneous catalysts, useful for the production of poliolefins. The method is characterized because said catalysts are obtained by supporting onto solids soluble metallocenes possessing one or more functional groups. Said functional groups are characterized because they can react with other reactive groups on the surface of the solids. The reactive groups on the solids can be part of said solids or incorporated by means of chemical modification. These catalyst systems are especially appropiated for the polymerization of one or several 1-olefins having from 2 to 20 carbon atoms in their chain. Further, they are especially appropiated for the copolymerization of ethylene with 1-olefins having from 3 to 20 carbon atoms in their chains. These polymerization processes can be carried out in gas-phase slurry or solution, at high temperatures and pressures.

Carbon and/or silicon bridged binuclear metallocene catalyst for styrene polymerization

An alkylene and/or silylene bridged binuclear metallocene catalyst for styrene polymerization is represented by the following formula (I): where M1 and M2 are the same or different transition metal of Group IVb of the Periodic Table; Cp1 and Cp2 are the same or different cyclopentadienyl; alkyl, alkoxy, silyl or halogen substituted cyclopentadienyl; indenyl; alkyl, alkoxy, silyl or halogen substituted indenyl; fluorenyl; or alkyl, alkoxy, silyl or halogen substituted fluorenyl, which is capable of pi -electron, eta 5-bonding with M1 or M2; each of E1, E2 and E3, independently of one another, is a carbon atom or a silicon atom; m, p and q are integers of 0 to 15 and m+p+q>/=1; each of R1, R2, R3, R4, R5 and R6, independently of one another, is a hydrogen, an alkyl, an aryl, an alkoxy or a halogen; X is a hydrogen, an alkyl, an alkoxy or a halogen; and n is 3. M1 and M2 may also be in cardin form by mixture of (I) with a compound which abstructs an X gray from each metal atom and substitution ...

Polymerization catalyst activator complexes and their use in a polymerization process

The present invention includes polymerization catalyst activator complexes which include at least Group 13 metals. The activator complexes of the invention are prepared, in general, by reacting a halogenated aryl Group 13 metal compound with a diol. The activator compound is represented in one aspect by:wherein each M<1 >is a Group 13 atom; each R<3>, R<3'>, R<3''>, and R<3'''> group is independently selected from, for example, C1 to C30 alkyls, halogenated C1 to C30 alkyls, C6 to C60 halogenated aryls; with the proviso that at least one of R<3>, R<3'>, R<3''>, and R<3'''> is a fluorinated C6 to C60 aryl group; R<1 >and R<2 >are independently selected from substituted or unsubstituted C1 to C100 hydrocarbylenes; R, when present, is a substituted or unsubstituted C30 hydrocarbylene; wherein when R is absent, R<1 >and R<2 >are bound together; and x is 0 or an integer from 1 to 100.

Thermoplastic elastomer composition, use thereof, method for producing same, ethylene/α-olefin/unconjugated polyene copolymer and use thereof

... [Problem] The purpose of the invention is to provide: a thermoplastic elastomer composition capable of providing molded articles that are lightweight, have better oil resistance than those provided by conventional cross-linked thermoplastic elastomers, and have hardness and mechanical properties such as tensile strength and tensile elongation that are equal to or superior to those provided by conventional cross-linked thermoplastic elastomers; and an ethylene/α-olefin/unconjugated polyene copolymer having little compression set at low temperature as well as flexibility and an excellent balance of rubber elasticity at low temperature and tensile strength at normal temperature.[Solution] Produced are: a thermoplastic elastomer composition obtained by dynamically crosslinking a mixture containing a crystalline olefin polymer (A), an ethylene/α-olefin (having 4-20 carbon atoms)/unconjugated polyene copolymer (1B) that satisfies specific requirements, and a phenol resin-based crosslinking agent ...

CATALYST COMPOSITION AND PROCESS FOR PRODUCTION OF OLEFIN POLYMERS USING THE CATALYST COMPOSITION

The present invention provides a catalyst composition and a method for producing an olefin polymer using the catalyst composition. The catalyst composition is prepared by bringing (A) a transition metal compound, (B) a solid boron compound capable of forming an ion pair with the component (A), (C) an organometallic compound and (D) a compound represented by the following general formula (XIV) and/or the following general formula (XV) into contact with each other in a hydrocarbon solvent, and enables a high catalyst concentration. Z5R14R15 (XIV) Z6R14R15R16 (XV) [In the formulae, Z5 represents an oxygen atom, etc.; Z6 represents a nitrogen atom, etc.; R14 to R16 each independently represent an organic group, and at least one of those organic groups is an organic group having at least 3 carbon atoms, and R14 to R16 may bond to each other to form a ring.] ...

METHODS FOR REDUCING STATIC CHARGE OF A CATALYST AND METHODS FOR USING THE CATALYST TO PRODUCE POLYOLEFINS

Catalyst compositions and process for preparing Polyolefins

Catalyst compositions comprising metallocene complexes having polymerisable groups may be used for the preparation of polyolefins. The catalyst compositions may be in the form of polymers comprising the metallocene complex and may be suitably supported on inorganic supports. Polymers having a broad range of density and melt indices as well as low hexane extractables and excellent powder morphology and flowability may be obtained by use of the catalyst compositions. Preferred metallocene complexes are zirconium complexes in which the polymerisable group is vinyl.

Catalyst systems and process for producing broad molecular weight distribution polyolefin

PROCESS FOR THE POLYMERIZATION OR COPOLYMERIZATION OF ETHYLENE

In gas phase polymerizations and copolymerizations of ethylene, temperature controls the molecular weight, expressed as MI (wherein MI is measured according to ASTM D-1238 Condition E), of the resin product. Increase in polymerization temperature produces decrease in MI; whereas, decrease in polymerization temperature produces increase in MI.

Method for making and using a supported metallocene catalyst system

オレフィン重合及び共重合用触媒

... エチレンの気相重合及び共重合において、試薬または同時供給原料が、樹脂生成物のMI(ここでMIはASTM D-1238条件Eによって測定される)として示される分子量を制御する。イソペンタン及び電子供与性化合物はMIを減少させ、一方水及び電子吸引性化合物はMIを増加させる。 ...

СМЕШАННЫЕ МЕТАЛЛОЦЕНОВЫЕ КАТАЛИТИЧЕСКИЕ СИСТЕМЫ, СОДЕРЖАЩИЕ КОМПОНЕНТ, ОБЕСПЕЧИВАЮЩИЙ ПЛОХОЕ ВКЛЮЧЕНИЕ СОМОНОМЕРА, И КОМПОНЕНТ, ОБЕСПЕЧИВАЮЩИЙ ХОРОШЕЕ ВКЛЮЧЕНИЕ СОМОНОМЕРА

Изобретение относится к катализирующим полимеризацию соединения каталитическим системам, включающим эти каталитические соединения, и их применению в полимеризации этилена и по меньшей мере одного сомономера. Описан способ полимеризации олефинов с получением полимерного продукта на этиленовой основе, включающий введение этилена и по меньшей мере одного сомономера в контакт с каталитической системой, где эта каталитическая система включает металлоценовое каталитическое соединение, обеспечивающее включение небольшого количества сомономера, содержащее по меньшей мере один лиганд на основе циклопентадиенила с конденсированными кольцами, и металлоценовое каталитическое соединение, обеспечивающее включение сомономера в большем количестве, чем соединение, обеспечивающее включение небольшого количества сомономера, и где полученный полимерный продукт обладает бимодальным композиционным распределением. Технический результат - получение полимеров, которые просты в переработке в изделия, преимущественно ...

СПОСОБ ПОЛУЧЕНИЯ КАТАЛИТИЧЕСКОЙ СИСТЕМЫ ДЛЯ (СО)ПОЛИМЕРИЗАЦИИ ОЛЕФИНОВ, СПОСОБ (СО)ПОЛИМЕРИЗАЦИИ ОЛЕФИНОВ И (СО)ПОЛИМЕР, ПОЛУЧЕННЫЙ ЭТИМ СПОСОБОМ

Способ получения каталитической системы, по которому готовят смесь нейтрального галогенизированного металлоценового производного переходного металла, выбранного из групп IIIB, IVB, VB и VIB, Периодической таблицы и алюминийорганического соединения и добавляют в нее ионизирующий агент. Способ (со) полимеризации олефинов, по которому готовят смесь галогенизированного нейтрального металлоцена такого, каким он определен выше и алюминийорганического соединения, в смесь вводят олефин и добавляют в нее ионизирующий агент. (Со)-полимер, по крайней мере, одного олефина, полученный выше указанным способом, содержит максимально 0,5%мас.олигомеров, имеющий распределение молекулярной массы с отношением MwMn, равным от 2 до 10, где Mw и Mn обозначают соответственно средневесовой молекулярный вес и среднечисловой молекулярный вес и содержание переходного металла менее 5 ррм мас. Способ позволяет получить ионные каталические системы с использованием металлоценов на носителе, избегая применения негалогенированных ...

ПОЛУЧЕНИЕ ПОЛИОЛЕФИНОВЫХ ПРОДУКТОВ

Описаны каталитические системы и способы их получения. Способ включает выбор каталитической смеси с помощью карты комбинированного коэффициента полидисперсности (bPDI). Карту полидисперсности строят посредством получения множества полимеров для по меньшей мере двух катализаторов. Каждый полимер получают с разными соотношениями водорода к этилену. По меньшей мере один катализатор обеспечивает получение более высокомолекулярного полимера, а другой катализатор обеспечивает получение более низкомолекулярного полимера. Измеряют молекулярную массу каждого полимера. Определяют зависимость между молекулярной массой полимеров, полученных на каждом из катализаторов, и соотношением водорода к этилену. Строят группу кривых bPDI для полимеров, которые будут получены с применением множества соотношений смеси по меньшей мере двух катализаторов для каждого из множества соотношений водорода к этилену. Выбирают соотношение для каталитической смеси катализаторов, которое обеспечивает получение полимера с ...

ТВЁРДАЯ ПОЛИАЛЮМОКСАНОВАЯ КОМПОЗИЦИЯ, КАТАЛИЗАТОР ПОЛИМЕРИЗАЦИИ ОЛЕФИНОВ, СПОСОБ ПОЛУЧЕНИЯ ОЛЕФИНОВЫХ ПОЛИМЕРОВ И СПОСОБ ПОЛУЧЕНИЯ ТВЁРДОЙ ПОЛИАЛЮМОКСАНОВОЙ КОМПОЗИЦИИ

АКТИВАТОРЫ КАТАЛИЗАТОРОВ ПОЛИМЕРИЗАЦИИ, СПОСОБ ИХ ПРИГОТОВЛЕНИЯ, И ИХ ПРИМЕНЕНИЕ В ПРОЦЕССАХ ПОЛИМЕРИЗАЦИИ

... 1. Каталитическая система, включающая катализатор полимеризации, алюминийсодержащее соединение и активатор, где активатор включает гетероциклическое соединение, которое может быть замещенным или незамещенным. 2. Каталитическая система по п.1, дополнительно включающая материал носителя. 3. Каталитическая система по п.1, в которой алюминийсодержащее соединение представляет собой алюмоксан или алюминийалкильное соединение, это алюминийалкильное соединение представлено формулой AlR3, в которой каждый R независимо обозначает замещенную или незамещенную алкильную группу или замещенную или незамещенную арильную группу. 4. Каталитическая система по п.1, в которой гетероциклическое соединение выбирают из группы, включающей пирролы, имидазолы, пиразолы, пирролины, пирролидины, пурины, карбазолы, индолы, фенилиндолы, 2,5-диметилпирролы, 3-пентафторфенилпиррол, 4,5,6,7-тетрафториндол, 3,4-дифторпирролы и их сочетания. 5. Каталитическая система по п.1, в которой гетероциклическое соединение замещают ...

СМЕШАННЫЕ МЕТАЛЛОЦЕНОВЫЕ КАТАЛИТИЧЕСКИЕ СИСТЕМЫ, СОДЕРЖАЩИЕ КОМПОНЕНТ, ОБЕСПЕЧИВАЮЩИЙ ПЛОХОЕ ВКЛЮЧЕНИЕ СОМОНОМЕРА, И КОМПОНЕНТ, ОБЕСПЕЧИВАЮЩИЙ ХОРОШЕЕ ВКЛЮЧЕНИЕ СОМОНОМЕРА

... 1. Способ полимеризации олефина (олефинов) с получением полимерного продукта, включающий введение этилена и по меньшей мере одного сомономера в контакт с каталитической системой, где эта каталитическая система включает каталитическое соединение, обеспечивающее плохое включение сомономера, содержащее по меньшей мере один лиганд на основе циклопентадиенила с конденсированными кольцами, и каталитическое соединение, обеспечивающее хорошее включение сомономера, и где полимерный продукт обладает бимодальным композиционным распределением. 2. Способ по п.1, в котором каталитическое соединение, обеспечивающее плохое включение сомономера, включает по меньшей мере один лиганд на основе циклопентадиенила с конденсированными кольцами, направленный на переднюю часть молекулы под углом α, который превышает 30°. 3. Способ по п.2, в котором α превышает 60°. 4. Способ по п.2, в котором α превышает 80°. 5. Способ по п.1, в котором металлоценовое каталитическое соединение, обеспечивающее плохое включение сомономера ...

Fester Aktivierungsträger für die Metallocenkatalysatoren in der Olefinpolymerisation, Herstellungsverfahren, Katalysatorsystem und entsprechendes Polymerisationsverfahren

Methods for Reducing Static Charge of a Catalyst and Methods for Using the Catalyst to Produce Polyolefins

Catalysts and methods for making and using the same are provided. The method for fabricating a catalyst may includes contacting a supported catalyst with a monomer under conditions that reduce an overall charge of the catalyst to less than about 75% of an initial charge of the catalyst. A method for polymerization may include introducing a pre-polymerized catalyst and one or more olefins into a gas phase fluidized bed reactor, operating the reactor at conditions sufficient to produce a polyolefin, wherein the polymerization is carried out in the substantial absence of any continuity additives. 1. A method for fabricating a catalyst , comprising:contacting a supported catalyst with a monomer under conditions that reduce the overall charge of the catalyst to less than about 75% of an initial charge of the catalyst.2. The method of claim 1 , wherein the overall charge of the catalyst is reduced to less than about 50% of the initial charge of the catalyst.3. (canceled)4. A method for polymerization claim 1 , comprising:injecting a pre-polymerized supported metallocene catalyst into a fluidized bed polymerization reactor system at the start-up of the reactor system, wherein the catalyst has a charge of less than about 0.3 μC/g; andcontacting a monomer with the pre-polymerized metallocene catalyst.5. The method of claim 4 , further comprising claim 4 , after start-up claim 4 , discontinuing injection of the catalyst into the reactor system claim 4 , and injecting a different catalyst into the reactor system.6. The method of claim 4 , wherein no antistatic agents are added to the fluidized bed polymerization reactor system during start-up.7. The method of claim 4 , wherein the polymerization method is a method for gas phase olefin polymerization claim 4 , and the method further comprises:operating the reactor to produce a polyolefin, wherein the polymerization is carried out in the substantial absence of any continuity additives.8. The method of claim 7 , wherein the total ...

CATALYST COMPOSITION AND PROCESS FOR PRODUCTION OF OLEFIN POLYMERS USING THE CATALYST COMPOSITION

The present invention provides a catalyst composition and a method for producing an olefin polymer using the catalyst composition. The catalyst composition is prepared by bringing (A) a transition metal compound, (B) a solid boron compound capable of forming an ion pair with the component (A), (C) an organometallic compound and (D) a compound represented by the following general formula (XIV) and/or the following general formula (XV) into contact with each other in a hydrocarbon solvent, and enables a high catalyst concentration. 1. A catalyst composition prepared by a process comprising contacting components (A) to (D) with each other in a hydrocarbon solvent , wherein the components (A) to (D) are:(A) a transition metal compound comprising a metal atom,(B) a solid boron compound capable of forming an ion pair with the transition metal compound (A),(C) an organometallic compound, and [{'br': None, 'sup': 5', '14', '15, 'ZRR\u2003\u2003(XIV)'}, {'br': None, 'sup': 6', '14', '15', '16, 'ZRRR\u2003\u2003(XV)'}], '(D) a compound capable of coordinating with the metal atom in the transition metal compound (A) and having a general formula (XIV) or a general formula (XV)wherein{'sup': '5', 'Zis an oxygen atom, a sulfur atom or a selenium atom;'}{'sup': '6', 'Zis a nitrogen atom, a phosphorus atom, or an arsenic atom; and'}{'sup': 14', '15', '16', '14', '15', '16, 'R, R, and Reach is an organic group, at least one of these organic groups is an organic group having at least 3 carbon atoms, and R, R, and Roptionally bond to each other to form a ring.'}2. The catalyst composition of claim 1 , wherein:a concentration of the transition metal compound (A) in the hydrocarbon solvent is from 1 to 100 μmol/ml,a ratio of the solid boron compound (B) to the transition metal compound (A) by mol is from 1.0 to 5,a ratio of the organometallic compound (C) to the transition metal compound (A) by mol is from 1.0 to 100, anda ratio of the compound (D) to the transition metal compound (A) ...

Golf ball composition and golf ball

A golf ball having a good rebound and excellent flight performance can be obtained using a golf ball composition which includes a diene polymer containing not more than 1.5% of components having a molecular weight of 30,000 or less.

Golf ball composition and golf ball

A golf ball having a good rebound and excellent flight performance can be obtained using a golf ball composition which contains a diene polymer having a smallest molecular weight value of at least 3,000.

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.

Preparation of a solid catalyst system

Process for the preparation of a solid catalyst system comprising the steps of generating an emulsion by dispersing a liquid clathrate in a solution wherein (i) the solution constitutes the continuous phase of the emulsion and (ii) the liquid clathrate constitutes in form of droplets the dispersed phase of the emulsion, solidifying said dispersed phase to convert said droplets to solid particles and optionally recovering said particles to obtain said catalyst system, wherein the liquid clathrate comprises a lattice being the reaction product of aluminoxane, an organometallic compound of a transition metal of Group 3 to 10 of the Periodic Table (IUPAC 2007) or of an actinide or lanthanide, and a further compound being effective to form with the aluminoxane and the organometallic compound the lattice, and a guest being an hydrocarbon compound, and the solution comprises a silicon fluid and a hydrocarbon solvent.

Transition Metal Compound for a Catalyst for Olefin Polymerization and Catalyst for Olefin Polymerization Comprising the Same

The present invention relates to a transition metal compound for a catalyst for olefin polymerization and to a catalyst for olefin polymerization comprising the same. Specifically, the present invention relates to a transition metal compound for an olefin polymerization catalyst in which an allyltrimethylsilane substituent is introduced into the cyclopentadienyl group and to a catalyst for olefin polymerization comprising the same. 2. The transition metal compound of claim 1 , wherein claim 1 , in Formula 1 claim 1 , n is each 1 or 2 claim 1 , M is zirconium or hafnium claim 1 , X is each halogen or substituted or unsubstituted Calkyl claim 1 , Rto Rand Rto Rare each hydrogen claim 1 , and Rto Rand Rto Rare each substituted or unsubstituted Calkyl or substituted or unsubstituted Caryl.5. A catalyst for olefin polymerization claim 1 , which comprises the transition metal compound of and a cocatalyst compound.7. The catalyst for olefin polymerization of claim 6 , wherein the compound represented by Formula 2 is at least one selected from the group consisting of methylaluminoxane claim 6 , ethylaluminoxane claim 6 , isobutylaluminoxane claim 6 , and butylaluminoxane.8. The catalyst for olefin polymerization of claim 6 , wherein the compound represented by Formula 3 is at least one selected from the group consisting of trimethylaluminum claim 6 , triethylaluminum claim 6 , triisobutylaluminum claim 6 , tripropylaluminum claim 6 , tributylaluminum claim 6 , dimethylchloroaluminum claim 6 , triisopropylaluminum claim 6 , tri-s-butylaluminum claim 6 , tricyclopentylaluminum claim 6 , tripentylaluminum claim 6 , triisopentyaluminum claim 6 , trihexyaluminum claim 6 , trioctyaluminum claim 6 , ethyldimethylaluminum claim 6 , methyldiethylaluminum claim 6 , triphenylaluminum claim 6 , tri-p-tolylaluminum claim 6 , dimethylaluminummethoxide claim 6 , dimethylaluminumethoxide claim 6 , trimethylboron claim 6 , triethylboron claim 6 , triisobutylboron claim 6 , tripropylboron ...

TRANSITION METAL COMPOUND FOR OLEFIN POLYMERIZATION CATALYST, OLEFIN POLYMERIZATION CATALYST INCLUDING SAME, AND POLYOLEFIN POLYMERIZED BY USING OLEFIN POLYMERIZATION CATALYST

The present invention relates to a transition metal compound for an olefin polymerization catalyst, represented by chemical formula 1. The description of chemical formula 1 is as described in the specification. 2. The transition metal compound for an olefin polymerization catalyst of claim 1 ,{'sub': '1-20', 'wherein the X is each independently halogen or Calkyl,'}{'sup': 1', '3', '4, 'wherein the R, Rand Rare each hydrogen,'}{'sup': '2', 'sub': '1-20', 'wherein the Ris Calkyl,'}{'sup': 5', '6, 'sub': 1-20', '6-20', '4-20, 'wherein the Rand Rare each independently Calkyl or Caryl, or linked to each other to form a substituted or unsubstituted aliphatic Cring,'}{'sup': 7', '10, 'sub': '5-20', 'wherein the Rto Rform a substituted or unsubstituted aromatic Cring, in which two adjacent ones are linked to each other.'}3. The transition metal compound for an olefin polymerization catalyst of claim 2 ,{'sup': 5', '6, 'sub': '4-20', 'wherein the Rand Rare each independently methyl, or linked to each other to form an aliphatic Cring.'}4. The transition metal compound for an olefin polymerization catalyst of claim 2 ,{'sup': 7', '10, 'sub': '6', 'wherein the Rto Rform a substituted or unsubstituted aromatic C, in which two adjacent ones are linked to each other.'}8. The olefin polymerization catalyst of claim 7 ,{'sub': '1-20', 'wherein the X is each independently halogen or Calkyl,'}{'sup': 1', '3', '4, 'wherein the R, Rand Rare each hydrogen,'}{'sup': '2', 'sub': '1-20', 'wherein the Ris Calkyl,'}{'sup': 5', '6, 'sub': 1-20', '6-20', '4-20, 'wherein the Rand Rare each independently Calkyl or Caryl, or linked to each other to form a substituted or unsubstituted aliphatic Cring,'}{'sup': 7', '10, 'sub': '5-20', 'wherein the Rto Rform a substituted or unsubstituted aromatic Cring, in which two adjacent ones are linked to each other.'}11. An olefin-based polymer formed by polymerization under the olefin polymerization catalyst according to .12. The olefin-based polymer of claim ...

Bimodal Polypropylene Compositions and Method of Making Same

The present invention relates to a bimodal polypropylene composition comprising a blend of a HMW polypropylene component and a LMW polypropylene component, where the high molecular weight (HMW) component of the bimodal composition has a z-average molecular weight Mz of more than 400,000 g/mole, and a process to make such composition. The composition is suitable for thermoformed articles and injection molded articles. 1. A polypropylene composition comprising at least one high molecular weight (HMW) polypropylene component and at least one low molecular weight (LMW) polypropylene component , wherein the polypropylene composition has any one or more of the following features:{'sup': '−1', 'a) an extensional viscosity of the polypropylene composition of more than 10,000 Pa·s, when measured on an extensional rheometer at a temperature of 172° C., and an extensional rate of 10 secondmeasured at 0.3 seconds;'}b) a zero shear viscosity of the polypropylene composition no less than the zero shear viscosity of the HMW polypropylene component alone, as determined in accordance with Small Angle Oscillatory Shear (SAOS) Rheology Test; and/orc) a relaxation time of the polypropylene composition of more than 0.9 seconds, as determined in accordance with Small Angle Oscillatory Shear (SAOS) Rheology Test;wherein the HMW polypropylene component has a z-average molecular weight Mz of more than 400,000 g/mole, as determined by Gel Permeation Chromatography (GPC), and is in an amount in the range of from 80.0 wt % to 99.9 wt %, based on the total weight of the composition.2. The polypropylene composition of claim 1 , wherein the extensional viscosity of the polypropylene composition is more than 20 claim 1 ,000 Pa·s claim 1 , when measured on an extensional rheometer at a temperature of 172° C. claim 1 , and an extensional rate of 10 secondmeasured at 0.3 seconds.3. The polypropylene composition of claim 1 , wherein the zero shear viscosity of the polypropylene composition is at least ...

Method For Preparing Polyolefin Using Supported Hybrid Metallocene Catalyst

The present disclosure relates to a method for preparing a polyolefin using a supported hybrid metallocene catalyst. According to the present disclosure, a polyolefin having a narrow molecular weight distribution can be prepared very effectively by introducing a cocatalyst in an optimum conent in the presence of a supported hybrid metallocene catalyst containing two or more metallocene compounds having a specific chemical structure. The polyolefin prepared according to the present disclosure exhibits excellent uniformity in chlorine distribution in polyolefin during chlorination, thereby significantly improving elongation of the chlorinated polyolefin, compatibility with PVC and impact reinforcing performance. Thus, it exhibits excellent chemical resistance, weather resistance, flame retardancy, processability and impact strength reinforcing effect, and can be suitably applied as an impact reinforcing agent for PVC pipes and window profiles.

SOLID POLYALUMINOXANE COMPOSITION, OLEFIN POLYMERIZATION CATALYST, OLEFIN POLYMER PRODUCTION METHOD AND SOLID POLYALUMINOXANE COMPOSITION PRODUCTION METHOD

An object of the invention is to provide a solid polyaluminoxane composition suitably used as a cocatalyst and a catalyst carrier in combination with an olefin oligomerization or polymerization catalyst, without the use of solid inorganic carriers such as silica. The solid polyaluminoxane composition of the invention includes a polyalkylaluminoxane and a trialkylaluminum, and has a solubility in n-hexane at 25° C. of less than 0.50 mol % as measured by a specific method (i), a solubility in toluene at 25° C. of less than 1.0 mol % as measured by a specific method (ii), and a 13 mol % or more molar fraction of alkyl groups derived from the trialkylaluminum moieties relative to the total number of moles of alkyl groups derived from the polyalkylaluminoxane moieties and the alkyl groups derived from the trialkylaluminum moieties as measured with respect to tetrahydrofuran-dsoluble components by a specific method (iii). 1. A solid polyaluminoxane composition production method comprising: [{'br': None, 'sup': 12', '13', '14, '(R)Al—X(R)(R)\u2003\u2003(5)'}, {'br': None, 'sup': 12', '13, '(R)Al—YR\u2003\u2003(6)'}, {'br': None, 'sup': '12', '(R)Al—Z\u2003\u2003(7)'}], 'a step of precipitating a solid polyaluminoxane composition by reacting a polyaluminoxane composition solution (A) including a polyalkylaluminoxane, a trialkylaluminum and a hydrocarbon solvent, with at least one component represented by General Formulae (5) to (7) below;'}{'sup': 12', '13', '14, 'in General Formulae (5) to (7), Ris a hydrocarbon group having 1 to 20 carbon atoms or is an oxygen atom, X is a Group 15 element, Y a Group 16 element, Z a Group 17 element, and Rand Rare hydrocarbon groups having 1 to 50 carbon atoms, and are the same as or different from each other.'}2. The solid polyaluminoxane composition production method according to claim 1 , wherein the molar fraction of alkyl groups of the trialkylaluminum moieties being 13 mol % or more relative to the total number of moles of alkyl ...

Olefin Polymer And Preparation Method Thereof

The present disclosure provides an olefin polymer having excellent film processability and physical properties, and a preparation method of the same.

PROCESS FOR PRODUCING OLEFIN POLYMER

To provide a process for producing an olefin polymer, which makes it possible to use, as a solvent for use in the catalyst preparation and the like, an aliphatic hydrocarbon solvent instead of an aromatic hydrocarbon solvent causing large environmental burden, and which has good olefin polymerization activity. A process for producing an olefin polymer, characterized by having a step comprising feeding an olefin polymerization catalyst solution, which is obtained by mixing a metallocene compound, a compound that reacts with the metallocene compound to form an ion pair and at least one compound selected from an organoaluminum compound and an organoaluminum oxy compound with a saturated hydrocarbon solvent, to a polymerization reactor and solution-polymerizing an olefin in the polymerization reactor. 4. The process for producing an olefin polymer as claimed in claim 1 , wherein the reaction solvent used in the solution polymerization is at least one hydrocarbon solvent selected from an aliphatic hydrocarbon solvent and an alicyclic hydrocarbon solvent. The present invention relates to a process for producing an olefin polymer.A large number of reports on using, as a catalyst system capable of producing an olefin polymer, a catalyst system combining a metallocene compound which is a transition metal compound, such as zirconocene, with an organoaluminum oxy compound (also referred to as “aluminoxane” hereinafter) or a catalyst system combining a metallocene compound with a compound which reacts with a metallocene compound to form an ion pair (also referred to as an “ionizing ionic compound” hereinafter), such as N,N-dimethylanilinium tetrakis(pentafluorophenyl)borate, have been already made.Since the ionizing ionic compound has low solubility in aliphatic hydrocarbon solvents, it is usually used by dissolving it in aromatic hydrocarbon solvents such as toluene. However, aromatic hydrocarbon solvents are generally high-boiling, and therefore, there is a possibility of ...

METHODS AND SYSTEMS FOR OLEFIN POLYMERIZATION

Methods and systems for olefin polymerization are provided. The method for olefin polymerization can include flowing a catalyst through an injection nozzle and into a fluidized bed disposed within a reactor. The method can also include flowing a feed comprising one or more monomers, one or more inert fluids, or a combination thereof through the injection nozzle and into the fluidized bed. The feed can be at a temperature greater than ambient temperature. The method can also include contacting one or more olefins with the catalyst within the fluidized bed at conditions sufficient to produce a polyolefin. 1. A method for controlling polymer morphology in olefin polymerization , comprising:flowing a catalyst through a first concentric flow path of an injection nozzle having two or more concentric flow paths and into a fluidized bed disposed within a reactor;flowing a feed comprising one or more monomers, one or more inert fluids, or a combination thereof through a second concentric flow path of the injection nozzle and into the fluidized bed, i) the temperature of the second concentric flow path or', 'ii) the flow rate of the feed through the second concentric flow path; and, 'controlling one or more ofcontacting one or more olefins with the catalyst within the fluidized bed at conditions sufficient to produce a polyolefin.2. The method of claim 1 , wherein the feed is at a temperature of about −35° C. to about 110° C.3. The method of claim 1 , wherein the feed is at a temperature of about 70° C. to about 100° C.4. The method of claim 1 , wherein the feed is at a temperature of about 93° C. to about 110° C.5. The method of claim 1 , wherein the feed is at a temperature within about 140° C. of the temperature of the fluidized bed.6. The method of claim 1 , wherein flowing the feed through the second concentric flow path and into the fluidized bed increases an amount of fines within the fluidized bed by at least 5 wt. % as compared to flowing the feed through the second ...

Ethylene/1-hexene Copolymer Having Excellent Processability And Mechanical Properties

The ethylene/1-hexene copolymer according to the present invention has excellent processability and mechanical properties, and thus can be applied to various fields such as food containers.

Dual Catalyst System for Producing High Density Polyethylenes With Long Chain Branching

Disclosed herein are ethylene-based polymers generally characterized by a melt index of less than 1 g/10 min, a density from 0.93 to 0.965 g/cm, a CY-a parameter at 190° C. of less than 0.2, an average number of short chain branches per 1000 total carbon atoms of the polymer in a molecular weight range of 400,000 to 600,000 g/mol that is greater than that in a molecular weight range of 40,000 to 60,000 g/mol, and an average number of long chain branches per 1000 total carbon atoms of the polymer in a molecular weight range of 400,000 to 600,000 g/mol that is greater than that in a molecular weight range of 4,000,000 to 6,000,000 g/mol. The ethylene polymers can be used to fabricate pipes, blown films, and blow molded products, and the ethylene polymers can be produced with a dual catalyst system containing a single atom bridged or two carbon atom bridged metallocene compound with two indenyl groups or an indenyl group and a cyclopentadienyl group, and a single atom bridged metallocene compound with a fluorenyl group and a cyclopentadienyl group with an alkenyl substituent. 1. An ethylene polymer having:a melt index of less than or equal to about 1 g/10 min;{'sup': '3', 'a density in a range from about 0.93 to about 0.965 g/cm;'}a CY-a parameter at 190° C. of less than or equal to about 0.2;an average number of short chain branches (SCB's) per 1000 total carbon atoms of the polymer in a molecular weight range of 400,000 to 600,000 g/mol that is greater than that in a molecular weight range of 40,000 to 60,000 g/mol; andan average number of long chain branches (LCB's) per 1000 total carbon atoms of the polymer in a molecular weight range of 400,000 to 600,000 g/mol that is greater than that in a molecular weight range of 4,000,000 to 6,000,000 g/mol.2. An article of manufacture comprising the polymer of .3. The polymer of claim 1 , wherein:the average number of SCB's per 1000 total carbon atoms of the polymer in the molecular weight range of 400,000 to 600,000 g/mol ...

Methods for Reducing Static Charge of a Catalyst and Methods for Using the Catalyst to Produce Polyolefins

Catalysts and methods for making and using the same are provided. The method for fabricating a catalyst may includes contacting a supported catalyst with a monomer under conditions that reduce an overall charge of the catalyst to less than about 75% of an initial charge of the catalyst. A method for polymerization may include introducing a pre-polymerized catalyst and one or more olefins into a gas phase fluidized bed reactor, operating the reactor at conditions sufficient to produce a polyolefin, wherein the polymerization is carried out in the substantial absence of any continuity additives.

METHOD FOR PREPARING SUPPORTED METALLOCENE CATALYST AND METHOD FOR PREPARING POLYOLEFIN USING THE SAME

The present invention relates to a method for preparing a supported metallocene catalyst, and a method for preparing polyolefin using the same, in which the supported metallocene catalyst prepared from the simple process according to the method for preparing the supported metallocene catalyst of the present invention can apply to the polymerization of the polyolefin that is polymerized at low pressure or high pressure; the molecular weight distribution of polyolefin prepared can be easily controlled; and there are effects such that its catalyst activity is significantly higher than that of the existed supported metallocene catalyst, and the molecular weight distribution can be easily controlled. 2. The method for preparing the supported metallocene catalyst according to claim 1 , wherein the above step ii) is composed of preparing the support that is supported with the metallocene compounds 1 and 2 claim 1 , and the co-catalyst 1 by reacting the metallocene compound 2 represented by Chemistry Figure 2 or Chemistry Figure 3 and the metallocene compound 1 represented by Chemistry Figure 1 with the support supported with the co-catalyst 1.3. The method for preparing the supported metallocene catalyst according to claim 1 , further comprising preparing the support supported with the metallocene compound 1′ by reacting one or more metallocene compound selected from the group consisting of the compounds represented by Chemistry figure 1 to 3 with the support before the above step i).4. The method for preparing the supported metallocene catalyst according to claim 1 , wherein the compound represented by Chemistry Figure 1 is [A-O—(CH)—CH]ZrClor [A-O—(CH)—CH]ZrCl claim 1 , in which a is an integer of 4˜8 claim 1 , and A is one selected from the group consisting of methoxymethyl claim 1 , t-butoxymethyl claim 1 , tetrahydropyranyl claim 1 , tetrahydrofuranyl claim 1 , 1-ethoxyethyl claim 1 , 1-methyl-1-methoxyethyl and t-butyl.5. The method for preparing the supported ...

POLYMERIZATION OF ETHYLENE IN SOLUTION PROCESSES USING A ZIEGLER-NATTA CATALYST AND A HYDROGENATION CATALYST

The catalyst system includes a heterogeneous procatalyst and a hydrogenation procatalyst. The heterogeneous procatalyst includes a titanium species, an aluminum species, and a magnesium chloride component. The hydrogenation procatalyst has the formula CpTiX, In formula CpTiX, each Cp is a cyclopentadienyl substituted with at least one R, wherein Ris (C-C)alkyl; and each X is independently a halogen atom. 1. A catalyst system comprising:a heterogeneous procatalyst comprising a titanium species, an aluminum species, and a magnesium chloride component; and{'sub': 2', '2', '2', '2', 'n, 'claim-text': [{'sub': 1', '10, 'each Cp is cyclopentadienyl substituted with at least one (C-C)alkyl;'}, {'sub': 1', '40', '1', '40', '1', '40', '1', '40, 'each X is independently monoanionic or neutral, wherein each X is independently (C-C)hydrocarbon, (C-C)heterohydrocarbon, (C-C)hydrocarbyl, (C-C)heterohydrocarbyl, or a halogen atom; and'}, 'n is 1 or 2., 'a hydrogenation procatalyst having the formula CpTiXTiCpor CpTiXwhere2. The catalyst system of claim 1 , wherein the heterogeneous catalyst is an unsupported bulk catalyst.3. The catalyst system of claim 1 , wherein the heterogeneous procatalyst comprises heterogeneous procatalyst particles having an average particle size from 0.1 micron to 10 microns.4. The catalyst system of claim 1 , wherein the heterogeneous procatalyst comprises heterogeneous procatalyst particles with a non-controlled morphology.5. The catalyst system of claim 1 , wherein the heterogeneous procatalyst comprises heterogeneous procatalyst particles claim 1 , wherein greater than or equal to 10% of the heterogeneous procatalyst particles have a particle size less than or equal to 1 micron.6. The catalyst system of claim 1 , wherein the ratio of moles titanium in the hydrogenation procatalyst to moles titanium in the heterogeneous procatalyst is greater than 1:2.7. The catalyst system of claim 1 , further comprising an alkyl aluminum cocatalyst Al(R) claim 1 , ...

Polyethylene and Chlorinated Polyethylene Thereof

The polyethylene according to the present disclosure has a molecular structure having a narrow particle distribution and a low content of ultra-high molecular weight, so that a chlorinated polyethylene having excellent chlorination productivity and thermal stability may be prepared by reacting the polyethylene with chlorine. And, a PVC composition including the same with improved impact strength may also be prepared. 1. A polyethylene having a crystal relaxation temperature of 110° C. or more , and a relaxation time satisfying the following Equation 1:{'br': None, 'i': T<−', 'M+, '0.6622×2\u2003\u2003[Equation 1]'}in Equation 1,T is the relaxation time of the polyethylene in seconds, and{'sub': '5', 'M is a melt index (MI, g/10 min) of the polyethylene measured at a temperature of 190° C. under a load of 5 kg in accordance with ASTM D 1238.'}2. The polyethylene according to claim 1 , wherein the polyethylene is an ethylene homopolymer.3. The polyethylene according to claim 1 , wherein the crystal relaxation temperature is 110° C. to 145° C.4. The polyethylene according to claim 1 , wherein the relaxation time is 2.0 seconds or less.5. The polyethylene according to claim 1 , wherein the melt index (MI) is 0.55 g/10 min or less.6. The polyethylene according to claim 1 , wherein the polyethylene has a melt flow rate ratio (MFRR21.6/5 claim 1 , a value obtained by dividing the melt index measured at 190° C. under a load of 21.6 kg by the melt index measured at 190° C. under a load of 5 kg in accordance with ASTM D 1238) of 10 to 18.7. The polyethylene according to claim 1 , wherein the polyethylene has a density of 0.947 g/cmto 0.954 g/cm.8. The polyethylene according to claim 1 , wherein the polyethylene has a molecular weight distribution (Mw/Mn) of 2 to 10.11. The method for preparing the polyethylene according to claim 9 , wherein each of the Rto Rand R to R is independently hydrogen claim 9 , or Chaloalkyl claim 9 , provided that at least one of Rto Rand Rto Ris ...

Olefin-based Copolymer And Process For Preparing Same

The present invention relates to an olefin-based copolymer having novel crystalline properties and capable of providing a molded article with further improved strength and impact strength when compounded with other resins, and a method for preparing the same. The olefin-based copolymer is an olefin-based copolymer comprising an ethylene repeating unit and an α-olefinic repeating unit. The olefin-based copolymer comprises polymer fractions defined by three different peaks at a predetermined temperature when analyzed by cross-fractionation chromatography. 1. An olefin-based copolymer comprising an ethylene repeating unit and an α-olefin-based repeating unit ,wherein when the olefin-based copolymer is analyzed by cross-fractionation chromatography (CFC), it includesa first fraction defined as a first peak appearing at a first elution temperature (Te1) of −20″C to 50° C.,a second fraction defined as a second peak appearing at a second elution temperature (Te2) of 50° C. to 85° C., anda third fraction defined as a third peak appearing at a third elution temperature (Te3) higher than that of the second elution temperature (Te2), for example, at a temperature of 85° C. to 130° C.,and wherein the fraction ratio of the second fraction defined by the integral area of the second peak is 7 to 75%.2. The olefin-based copolymer according to claim 1 , wherein the central peak temperature of the second peak of the olefin-based copolymer is 50° C. to 85° C.3. The olefin-based copolymer according to claim 1 , wherein the central peak temperature of the first peak of the olefin-based copolymer is −15° C. to 15° C. claim 1 , and the fraction ratio of the first fraction defined by the integral area of the first peak is 50 to 75%.4. The olefin-based copolymer according to claim 1 , wherein the central peak temperature of the third peak is 85° C. to 100° C. claim 1 , and the fraction ratio of the third fraction defined by the integral area of the third peak is 5 to 75%.5. The olefin-based ...

High-density ethylene-based polymer using supported hybrid metallocene catalyst, and manufacturing method therefor

A high-density ethylene-based polymer is provided. The high-density ethylene-based polymer contains an ethylene homopolymer or a copolymer of ethylene and at least one comonomer selected from the group consisting of an α-olefin, a cyclic olefin, and a straight, branched and cyclic diene. The high-density polyethylene resin has a wide molecular weight distribution and excellent comonomer distribution characteristics, has excellent melt flowability due to a long chain branched structure, and has excellent mechanical characteristics since the comonomer distribution is concentrated in a high-molecular-weight body. The high-density ethylene polymer has excellent molding processability during processing such as extrusion, compression, injection and rotational molding by having excellent mechanical characteristics and melt flowability.

Polyethylene formulations for large part blow molding applications

In various embodiments, a polyethylene formulation has a density of greater than 0.940 g/cm 3 when measured according to ASTM D792, and a high load melt index (I 21 ) of 1.0 g/10 min to 10.0 g/10 min when measured according to ASTM D1238 at 190° C. and a 21.6 kg load. Moreover, the polyethylene formulation has a peak molecular weight (M p(GPC) ) of less than 50,000 g/mol, a number average molecular weight (M n(GPC) ) of less than 30,000 g/mol, and a weight fraction (w1) of molecular weight (MW) less than 10,000 g/mol of less than or equal to 10.5 wt %, as determined by Gel Permeation Chromatography (GPC). Articles made from the polyethylene formulation, such as articles made by blow molding processes are also provided.

Catalyst Systems and Processes for Poly Alpha-Olefin Having High Vinylidene Content

A process for making a poly alpha-olefin (PAO) having a relatively high vinylidene content (or combined vinylidene and tri-substituted vinylene content) and a relatively low vinyl and/or di-substituted vinylene content, as well as a relatively low molecular weight. The process includes: contacting a feed containing a C-Calpha-olefin with a catalyst system comprising activator and a bis-cyclopentadienyl metallocene compound, typically a cyclopentadienyl-benzindenyl group 4 transition metal compound. 3. The process of claim 1 , wherein the conversion is about 10% or more and the polymerization reaction exhibits a selectivity toward greater than or equal to about 80 mol % vinylidenes claim 1 , based on total moles of vinyls claim 1 , vinylidenes claim 1 , di-substituted vinylenes claim 1 , and tri-substituted vinylenes in the unsaturated PAO product.4. The process of where in the conversion is 40% or more.5. The process of claim 1 , wherein Ris hydrogen.6. The process of claim 2 , wherein Ris hydrogen and at least one of Rand Ris not hydrogen.7. The process of claim 1 , wherein Ris hydrogen and one of Rand Ris a substituted or unsubstituted linear claim 1 , branched linear claim 1 , or cyclic C-Chydrocarbyl group claim 1 , and the other one of Rand Ris a hydrogen.8. The process of claim 1 , wherein:{'sup': 1', '3, 'sub': 1', '8, 'one of Rand Rcomprise an alpha Group 14 atom directly attached to the indenyl ring, a beta Group 14 atom attached to the alpha atom, and two or more, substituted or unsubstituted linear, branched linear, or cyclic C-Chydrocarbyl groups attached to the beta atom.'}10. The process of claim 2 , wherein Rand R claim 2 , or Rand R claim 2 , or Rand R claim 2 , taken together with the respective carbon atoms in the indenyl ring to which they are directly connected claim 2 , form a ring annelated to the indenyl ring.11. The process of wherein the ring annelated to the indenyl ring comprises one or more saturated carbon atoms.12. The process of ...

METHODS OF MONITORING AND CONTROLLING THE MELT INDEX OF A POLYOLEFIN PRODUCT DURING PRODUCTION

Methods for producing polyolefin polymers may use a predictive melt index regression to estimate the melt index of the polyolefin during production based on the composition of the gas phase and, optionally, the concentration of catalyst in the reactor or reactor operating conditions. Such predictive melt index regression may include multiple terms to account for concentration of ICA in the reactor, optionally concentration of hydrogen in the reactor, optionally concentration of comonomer in the reactor, optionally the catalyst composition, and optionally reactor operating conditions. One or more terms may independently be represented by a smoothing function that incorporates a time constant. 124.-. (canceled)25. A method comprising:contacting in a fluidized bed gas phase reactor an olefin monomer with a catalyst system in the presence of an induced condensing agent (ICA) and optionally hydrogen to produce a polyolefin having a melt index;monitoring a reactor ICA concentration, optionally a reactor hydrogen concentration, and the melt index of the polyolefin;calculating a predictive melt index regression based on an effect of the concentration of the ICA in the reactor and optionally an effect of the hydrogen in the reactor on the melt index of the polyolefin, wherein at least one term of the predictive melt index regression associated with the concentration of the ICA or the concentration of the hydrogen is independently represented by a smoothing function that incorporates a time constant;calculating a predicted melt index using the predictive melt index regression based on a change in the reactor ICA concentration; andadjusting the reactor ICA concentration based on the predicted melt flow index to maintain the melt index within or move the melt index to within a melt index threshold range.26. The method of claim 25 , wherein terms of the predictive melt index regression associated with the concentration of the ICA and the concentration of the hydrogen are each ...

METALLOCENE COMPOUND, METALLOCENE-SUPPORTED CATALYST, AND METHOD OF PREPARING POLYOLEFIN USING THE SAME

Provided are a novel metallocene compound, a metallocene-supported catalyst, and a method of preparing a polyolefin using the same. The metallocene-supported catalyst according to the present disclosure exhibits a high polymerization activity even when the metallocene compound is supported on a support, thereby showing an excellent activity and preparing a polyolefin having a high molecular weight. 2. The metallocene compound of claim 1 , wherein Rto Rof Chemical isopropyl group claim 1 , an n-butyl group claim 1 , a tert-butyl group claim 1 , a pentyl group claim 1 , a hexyl group claim 1 , a heptyl group claim 1 , an octyl group claim 1 , an ethylene group claim 1 , a propylene group claim 1 , a butenyl group claim 1 , a phenyl group claim 1 , a benzyl group claim 1 , a naphthyl group claim 1 , a methoxy group claim 1 , an ethoxy group claim 1 , or a tert-butoxyhexyl group claim 1 , and Rof Chemical Formula 2b is a methyl group claim 1 , an ethyl group claim 1 , a propyl group claim 1 , an isopropyl group claim 1 , an n-butyl group claim 1 , a tert-butyl group claim 1 , a pentyl group claim 1 , a hexyl group claim 1 , a heptyl group claim 1 , an octyl group claim 1 , an ethylene group claim 1 , a propylene group claim 1 , a butenyl group claim 1 , a phenyl group claim 1 , a benzyl group claim 1 , a naphthyl group claim 1 , a trimethylsilyl group claim 1 , a triethylsilyl group claim 1 , a tripropylsilyl group claim 1 , a tributylsilyl group claim 1 , a triisopropylsilyl group claim 1 , a trimethylsilylmethyl group claim 1 , a tert-butyldimethylsilylether group claim 1 , a methoxy group claim 1 , an ethoxy group claim 1 , or a tert-butoxyhexyl group.3. The metallocene compound of claim 1 , wherein Qand Qof Chemical Formula 1 are a methyl group or a tert-butoxyhexyl group.7. A metallocene-supported catalyst claim 1 , comprising the metallocene compound of ;a cocatalyst compound; anda support.9. The metallocene-supported catalyst of claim 7 , wherein the support is ...

METHODS OF STABILIZING HYDROGENATION CATALYSTS

Provided is a hydrogenation catalyst solution comprising a solid catalyst precursor and an activator mixed in a solvent solution where propylene or another alpha-olefin or combination thereof is then added to this solution to prevent the formation of solids and stabilize the solution. The hydrogenation catalyst solution can then be combined with a polymerization catalyst such as Ziegler-Natta catalyst in a polymerization reactor so as to remove excess hydrogen from the reactor during a polymerization process. Hydrogen is eliminated by converting a portion of the olefins (propylene and ethylene) present into alkanes (propane and ethane). 1. A method of preventing formation of solids in a hydrogenation catalyst comprising the steps of:(a) mixing a solid catalyst precursor with a solvent, and optionally with an activator, to form a solvent solution; followed by(b) combining a C3 to C12 α-olefin with the solvent solution to form a hydrogenation catalyst solution.2. The method of claim 1 , wherein the hydrogenation catalyst solution is substantially free of solids.3. The method of claim 1 , wherein the hydrogenation catalyst solution is substantially clear by visual inspection.4. The method of claim 1 , wherein the solid catalyst precursor is a titanocene.5. The method of claim 4 , wherein the C3 to C12 α-olefin is combined with the solvent solution at a pressure of at least 20 psig.6. The method of claim 1 , wherein the activator comprises an alkylaluminum.7. The method of claim 1 , followed by contacting at least a portion of the hydrogenation catalyst solution with a first polymerization medium containing hydrogen (H) to produce a second polymerization medium claim 1 , wherein the second polymerization medium comprises less hydrogen than the first polymerization medium.8. The method of claim 1 , wherein the hydrogenation catalyst solution is added to a reactor in the presence of a polymerization catalyst.9. The method of claim 1 , wherein the solvent is a C3 to C10 ...

BIMETALLIC CATALYTIC COMPOUNDS AND COMPOSITIONS COMPRISING PERMETHYLPENTALENE LIGANDS

Bimetallic catalytic compounds and compositions comprising permethylpentalene ligands, as well as their methods of preparation, are described. The catalytic compounds and compositions are promising catalysts in olefin (e.g. ethylene) polymerisation reactions. 2. The compound of claim 1 , wherein each TM is independently selected from Rh claim 1 , Ir claim 1 , Ti claim 1 , Ni claim 1 , Co claim 1 , Fe and Zr.3. The compound of claim 1 , wherein both TM groups are the same.4. The compound of any of claim 1 , wherein each ring A is independently a 5-8 membered aryl claim 1 , heteroaryl containing 1 claim 1 , 2 or 3 heteroatoms selected from N claim 1 , O and S claim 1 , or partially unsaturated cycloalkyl that is:{'sub': x', 'y', 'x', 'y', '3, '1. optionally substituted with one or more substituents selected from (1-4C)alkyl, (2-4C)alkenyl, (2-4C)alkynyl; (1-4C)alkoxy, aryl, aryloxy, halo, hydroxyl, nitro, —NRR, —C(O)NRRand —Si[(1-4C)alkyl], and/or'}{'sub': x', 'y', 'x', 'y', '3, 'claim-text': {'sub': x', 'y, 'wherein Rand Rare independently selected from H and (1-4C)alkyl.'}, '2. fused to one or more 5- or 6-membered aryl, heteroaryl, or partially unsaturated cycloalkyl rings, either or all of which being optionally substituted with one or more substituents selected from (1-4C)alkyl, (2-4C)alkenyl, (2-4C)alkynyl; (1-4C)alkoxy, aryl, aryloxy, halo, hydroxyl, nitro, —NRR, —C(O)NRRand —Si[(1-4C)alkyl],'}5. The compound of claim 1 , wherein each ring A is independently a 5-8 membered aryl claim 1 , heteroaryl containing 1 or 2 N heteroatoms claim 1 , or partially unsaturated cycloalkyl that is:{'sub': x', 'y', 'x', 'y', '3, '1. optionally substituted with one or more substituents selected from (1-4C)alkyl, (2-4C)alkenyl, (2-4C)alkynyl; (1-4C)alkoxy, aryl, aryloxy, halo, hydroxyl, nitro, —NRR, —C(O)NRRand —Si[(1-4C)alkyl], and/or'}{'sub': x', 'y', 'x', 'y', '3, 'claim-text': {'sub': x', 'y, 'wherein Rand Rare independently selected from H and (1-4C)alkyl.'}, '2. fused to ...

Olefin Polymer And Preparation Method Thereof

The present disclosure provides an olefin polymer having excellent film processability and physical properties, and a preparation method of the same.

METHODS AND SYSTEMS FOR OLEFIN POLYMERIZATION

Methods and systems for olefin polymerization are provided. The method for olefin polymerization can include flowing a catalyst through an injection nozzle and into a fluidized bed disposed within a reactor. The method can also include flowing a feed comprising one or more monomers, one or more inert fluids, or a combination thereof through the injection nozzle and into the fluidized bed. The feed can be at a temperature greater than ambient temperature. The method can also include contacting one or more olefins with the catalyst within the fluidized bed at conditions sufficient to produce a polyolefin. 122.-. (canceled)23. A method for controlling polymer morphology in olefin polymerization , comprising:flowing a catalyst through a first concentric flow path of the injection nozzle having two or more concentric flow paths and into a fluidized bed disposed within a reactor;flowing a first amount of feed comprising one or more olefins, one or more inert fluids, or a combination thereof through a second concentric flow path of the injection nozzle at first flow rate and first temperature and into the fluidized bed; andcontacting the first amount of feed with the catalyst within the fluidized bed at conditions sufficient to produce a polyolefin having a first size distribution;flowing a second amount of the catalyst through the first concentric flow path and into the fluidized bed;flowing a second amount of feed comprising one or more olefins, one or more inert fluids, or a combination thereof through the second concentric flow path at a second flow rate and a second temperature and into the fluidized bed; andcontacting the second amount of feed with the catalyst within the fluidized bed at conditions sufficient to produce a polyolefin having a second size distribution, wherein the first size distribution is different from the second size distribution, wherein the first temperature is different from the second temperature and/or the first flow rate is different from ...

ALKOXY MAGNESIUM SUPPORTED OLEFIN POLYMERIZATION CATALYST COMPONENT, CATALYST AND APPLICATION THEREOF

Provided is an alkoxy magnesium supported olefin polymerization catalyst component, comprising the reaction products of the following components: at least one alkoxy magnesium compound of Mg(OR1′)N(OR2′)2-N, at least one titanium compound of general formula Ti(OR)nX4-n, at least one ortho-phenylene diester electron donor compound a, and at least one diether electron donor compound b, wherein the molar ratio of a to b is 0.05 to 20. The catalyst component has an ultrahigh polymerization activity when used for olefin polymerization, and does not require the use of an external electron donor, but can also obtain a polymer with a high isotacticity, and the resulting polymer has a relatively wide molecular weight distribution and a relatively low ash content. 2. The catalyst component according to claim 1 , wherein the molar ratio of the electron donor a compound to the electron donor b compound is from 0.1 to 15 claim 1 , preferably from 0.2 to 10.3. The catalyst component according to claim 1 , wherein the alkoxymagnesium compound is selected from the group consisting of magnesium dimethoxide claim 1 , magnesium diethoxide claim 1 , magnesium dipropoxide claim 1 , magnesium dibutoxide claim 1 , magnesium ethoxymethoxy claim 1 , magnesium ethoxypropoxy or magnesium butoxyethoxy claim 1 , which is used alone or in combination.4. The catalyst component according to claim 1 , wherein the titanium compound is selected from the group consisting of titanium tetrachloride claim 1 , titanium tetrabromide claim 1 , titanium tetraiodide claim 1 , titanium tetraethoxide claim 1 , titanium tetrabutoxide claim 1 , ethoxy titanium trichloride claim 1 , methoxy titanium trichloride claim 1 , propoxy titanium trichloride claim 1 , n-butoxy titanium trichloride claim 1 , dimethoxy titanium dichloride claim 1 , diethoxy titanium dichloride claim 1 , dipropoxy titanium dichloride claim 1 , di-n-butoxy titanium dichloride claim 1 , trimethoxy titanium chloride claim 1 , triethoxy titanium ...

VISCOSITY MODIFIER FOR LUBRICATING OILS, ADDITIVE COMPOSITION FOR LUBRICATING OILS, AND LUBRICATING OIL COMPOSITIONS

A viscosity modifier for lubricating oils according to the present invention contains a resin (α), wherein the resin (α) satisfies specific requirements, and contains a grafted olefin polymer [R1] which is composed of a main chain and a side chain(s) and which satisfies the following requirements (i) and (ii). (i) The main chain is composed of a copolymer of ethylene and at least one α-olefin selected from α-olefins having from 3 to 12 carbon atoms, and contains the structural units derived from ethylene within the range of from 74 to 86 mol %. (ii) The side chain(s) is/are composed of a copolymer of ethylene and at least one α-olefin selected from α-olefins having from 3 to 12 carbon atoms, and contain(s) the structural units derived from ethylene within the range of from 30 to 65 mol %. 1. A viscosity modifier for lubricating oils , comprising a resin (α) ,wherein the resin (α) satisfies the following requirements (I) and (II), and comprises a grafted olefin polymer [R1] which is composed of a main chain and a side chain(s) and which satisfies the following requirements (i) and (ii):(i) the main chain is composed of a copolymer of ethylene and at least one α-olefin selected from α-olefins having from 3 to 12 carbon atoms, and comprises structural units derived from the ethylene within the range of from 74 to 86 mol %; and(ii) the side chain(s) is/are composed of a copolymer of ethylene and at least one α-olefin selected from α-olefins having from 3 to 12 carbon atoms, and comprise(s) the structural units derived from ethylene within the range of from 30 to 65 mol %;(I) the melting point (Tm) as measured by differential scanning calorimetry (DSC) is within the range of from −20 to 100° C.; and(II) the intrinsic viscosity [η] as measured in decalin at 135° C. is within the range of from 0.5 to 2.5 dl/g.2. The viscosity modifier for lubricating oils according to claim 1 , wherein the resin (α) further satisfies the following requirement (III):(III) the ratio of the ...

Higher Density Polyolefins With Improved Stress Crack Resistance

Disclosed herein are polymerization processes for the production of olefin polymers. These polymerization processes can employ a catalyst system containing two or three metallocene components, resulting in ethylene-based copolymers that can have a medium density and improved stress crack resistance.

Processes to Produce Poly Alpha-Olefin Trimer and Apparatus Therefor

In at least one embodiment, a process to produce a poly alpha-olefin (PAO) includes introducing a first alpha-olefin to a first catalyst system comprising activator and a metallocene compound into a continuous stirred tank reactor or a continuous tubular reactor under first reactor conditions to form a first reactor effluent. The first alpha-olefin is introduced to the reactor at a flow rate of about 100 g/hr or more. The first reactor effluent includes at least 60 wt % of PAO dimer and 40 wt % or less of higher oligomers, where the higher oligomers are oligomers that have a degree of polymerization of 3 or more. The process includes introducing the first reactor effluent and a second alpha-olefin to a second catalyst composition including an acid catalyst in a second reactor to form a second reactor effluent comprising PAO trimer. 1. A process to produce a poly alpha-olefin (PAO) , comprising:a) introducing a first alpha-olefin to a first catalyst system comprising activator and a metallocene compound into a continuous stirred tank reactor or a continuous tubular reactor under first reactor conditions, wherein the first alpha-olefin is introduced to the reactor at a flow rate of about 100 g/hr or more, to form a first reactor effluent comprising at least 60 wt % of PAO dimer and 40 wt % or less of higher oligomers, where the higher oligomers are oligomers that have a degree of polymerization of 3 or more; andb) introducing the first reactor effluent and a second alpha-olefin to a second catalyst composition comprising an acid catalyst in a second reactor to form a second reactor effluent comprising PAO trimer,wherein the higher oligomers in the first reactor effluent are not separated from the first effluent stream prior to introduction into the second reactor.2. The process of claim 1 , wherein the first reactor effluent is not transferred to a separation unit prior to introduction into the second reactor unit.3. The process of claim 1 , further comprising: ...

Dual Catalyst System for Producing High Density Polyethylenes With Long Chain Branching

Disclosed herein are ethylene-based polymers generally characterized by a melt index of less than 1 g/10 min, a density from 0.93 to 0.965 g/cm, a CY-a parameter at 190° C. of less than 0.2, an average number of short chain branches per 1000 total carbon atoms of the polymer in a molecular weight range of 400,000 to 600,000 g/mol that is greater than that in a molecular weight range of 40,000 to 60,000 g/mol, and an average number of long chain branches per 1000 total carbon atoms of the polymer in a molecular weight range of 400,000 to 600,000 g/mol that is greater than that in a molecular weight range of 4,000,000 to 6,000,000 g/mol. The ethylene polymers can be used to fabricate pipes, blown films, and blow molded products, and the ethylene polymers can be produced with a dual catalyst system containing a single atom bridged or two carbon atom bridged metallocene compound with two indenyl groups or an indenyl group and a cyclopentadienyl group, and a single atom bridged metallocene compound with a fluorenyl group and a cyclopentadienyl group with an alkenyl substituent. 1. An ethylene polymer having:a melt index of less than or equal to about 1 g/10 min;{'sup': '3', 'a density in a range from about 0.93 to about 0.965 g/cm;'}a CY-a parameter at 190° C. of less than or equal to about 0.2;an average number of short chain branches (SCB's) per 1000 total carbon atoms of the polymer in a molecular weight range of 400,000 to 600,000 g/mol that is greater than that in a molecular weight range of 40,000 to 60,000 g/mol; andan average number of long chain branches (LCB's) per 1000 total carbon atoms of the polymer in a molecular weight range of 400,000 to 600,000 g/mol that is greater than that in a molecular weight range of 4,000,000 to 6,000,000 g/mol.2. An article of manufacture comprising the polymer of .3. The polymer of claim 1 , wherein:the average number of SCB's per 1000 total carbon atoms of the polymer in the molecular weight range of 400,000 to 600,000 g/mol ...

Catalyst delivery method and catalyst feeder

The present invention relates to an improved catalyst delivery method for introducing a supported bulky ligand metallocene-type catalyst system to a reactor for polymerizing one or more olefin(s). In particular, the invention provides for a method of introducing a supported metallocene-type catalyst system into a polymerization reactor by and in the presence of a carrier solution of an antistatic agent and a liquid diluent. Also, the invention is directed toward a catalyst feeder for use in a polymerization process.

Polymerization process

The present application relates to a process for polymerizing monomer and comonomer(s) utilizing a bulky ligand transition metal metallocene-type catalyst or catalyst system, where the process is operated in the absence of or with a low amount of any of the isomers of the comonomer(s). The level of these isomers in the process of the invention is eliminated or maintained below a threshold level. It has been discovered that removal of certain isomers of the comonomer used in a polymerization process using metallocene-type catalysts results in an improved process.

Catalyst delivery method, a catalyst feeder and their use in a polymerization process

The present invention relates to an improved catalyst delivery method for introducing a supported bulky ligand metallocene-type catalyst system to a reactor for polymerizing one or more olefin(s). In particular, the invention provides for a method of introducing a supported metallocene-type catalyst system into a polymerization reactor by and in the presence of a carrier solution of an antistatic agent and a liquid diluent. Also, the invention is directed toward a catalyst feeder for use in a polymerization process.

método para transferir um sistema de catalisador, processo para a polimerização de olefinas e monÈmeros em um reator, bem como composição de catalisador de polimerização e alimentador de catalisador.

Catalyst delivery method and catalyst feeder

Catalyst delivery method and catalyst feeder

CATALYST ADDING METHOD AND CATALYST ADDING DEVICE

Catalyst delivery method and catalyst feeder

The present invention relates to an improved catalyst delivery method for introducing a supported bulky ligand metallocene-type catalyst system to a reactor for polymerizing one or more olefin(s). In particular, the invention provides for a method of introducing a supported metallocene-type catalyst system into a polymerization reactor by and in the presence of a carrier solution of an antistatic agent and a liquid diluent. Also, the invention is directed toward a catalyst feed er for use in a polymerization process.

METHOD OF CATALYST SUPPLY AND CATALYST FEEDER.

Un método para suministrar un sistema catalítico tipo metaloceno de ligando voluminoso soportado a un reactor de polimerización en fase gas o en suspensión que utiliza una disolución vehículo que comprende un agente antiestático y un diluyente líquido, en el que la disolución vehículo sirve para hacer fluir el sistema catalítico tipo metaloceno de ligando voluminoso soportado dentro del reactor, y en el que la disolución vehículo contiene en el intervalo de 0, 01 a por ciento en peso del agente antiestático basado en el peso total de la disolución vehículo. A method for supplying a metallocene voluminous ligand-type catalyst system supported to a gas or suspension phase polymerization reactor using a vehicle solution comprising an antistatic agent and a liquid diluent, in which the vehicle solution serves to flow the metallocene type system of bulky ligand supported within the reactor, and in which the vehicle solution contains in the range of 0.01 to percent by weight of the antistatic agent based on the total weight of the vehicle solution.

Способы уменьшения статического заряда катализатора и способы применения такого катализатора для производства полиолефинов

1. Способ получения катализатора, включающий контактирование нанесенного катализатора с мономером при условиях, снижающих общий заряд катализатора до менее чем примерно 75% начального заряда.2. Способ по п.1, в котором общий заряд катализатора снижен до менее чем примерно 50% начального заряда.3. Способ по п.1, в котором общий заряд катализатора снижен до менее чем примерно 30% начального заряда.4. Способ полимеризации, включающий следующие стадии:введение предварительно полимеризованного нанесенного металлоценового катализатора в полимеризационную реакторную систему с псевдоожиженным слоем при ее запуске, причем заряд катализатора составляет менее чем примерно 0,3 мкК/г; иконтактирование мономера и предварительно полимеризованного металлоценового катализатора.5. Способ по п.4, дополнительно включающий прекращение введения катализатора в реакторную систему после ее запуска, и введение в реакторную систему другого катализатора.6. Способ по п.4, в котором при запуске полимеризационной реакторной системы с псевдоожиженным слоем в нее не добавляют антистатических агентов.7. Способ по п.4, в котором способ полимеризации представляет собой способ газофазной полимеризации олефинов и дополнительно включающий:осуществление работы реактора с получением полиолефина, причем полимеризацию осуществляют, по существу, в отсутствие каких-либо добавок для повышения сплошности.8. Способ по п.7, в котором общая концентрация всех добавок для повышения сплошности, если они присутствуют, составляет менее чем 5 мас.част./млн. в расчете на производительность по полиолефину.9. Способ по п.7 или п.8, в котором добавки для повышения сплошно� РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2012 128 353 A (51) МПК C08F 2/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2012128353/04, 07.12.2010 (71) Заявитель(и): ЮНИВЕЙШН ТЕКНОЛОДЖИЗ, ЛЛК (US) Приоритет(ы): (30) Конвенционный приоритет: 07.12.2009 US 61/267,208 (85) Дата начала рассмотрения ...

Catalysts, method of preparing these catalysts, and polymerization processes wherein these catalysts are used

A catalyst is prepared by combining a bis(cyclopentadienyl)zirconium compound which may be represented by one of the following general formulae: and wherein: M is a metal selected from the Group consisting of titanium (Ti), zirconium (Zr) and hafnium (Hf); (A-Cp) is either (Cp)(Cp * ) or Cp-A'-Cp * and Cp and Cp * are the same or different substituted or unsubstituted cyclopentadienyl radicals; A' is a covalent bridging group containing a Group IV-A element; L is an olefin, diolefin or aryne ligand; Xi and X 2 are, independently, selected from the Group consisting of hydride radicals, hydrocarbyl radicals, substituted-hydrocarbyl radicals, organo- metalloid radicals and the like; X' 1 and X' 2 are joined and bound to the metal atom to form a metallacycle, in which the metal, X'i and X' 2 form a hydrocarbocyclic ring having from about 3 to about 20 carbon atoms; and R is a substituent on one of the cyclopentadienyl radicals which is also bound to the metal atom. with a second compound comprising a cation capable of donating a proton and a bulky, labile anion comprising a plurality of boron atoms capable of stabilizing the zirconium cation formally having a coordination number of 3 and a valence of +4 which is formed as a result of the combination, said second compound having one of the following general formulae: Wherein: L'-H is either H+, ammonium or a substituted-ammonium radical having up to 3 hydrogen atoms replaced with a hydrocarbyl or substituted-hydrocarbyl radical, a phosphonium or substituted-phosphonium radical having up to 3 hydrogen atoms replaced with a hydrocarbyl or substituted-hydrocarbyl radical and the like; B and C are, respectively, boron and carbon; X, X' and X" are radicals selected, independently, from the Group consisting of hydride radicals, halide radicals, hydrocarbyl or substituted-hydrocarbyl radicals, organo-metalloid radicals and the like; a and b are integers ≧ 0; c is an integer s 1; a + B + c = ...

Catalysts, method of preparing these catalysts and method of using said catalysts

A catalyst is prepared by combining a first compound consisting of a bis(cyclopentadienyl)metal compound having one of the followina aeneral formulae: Wherein: M is a metal selected from the Group consisting of titanium, zirconium and hafnium; (A-Cp) is either (Cp)(Cp * ) or Cp-A'-Cp * and Cp and Cp * are the same or different substituted or unsubstituted cyclopentadienyl radicals; A' is a covalent bridging group; L is an olefin, diolefin or aryne ligand; X 1 and X 2 are, independently, selected from the group consisting of hydride radicals, hydrocarbyl radicals, substituted-hydrocarbyl radicals, organometalloid radicals and the like; X'i and X' 2 are joined and bound to the metal atom to form a metallacycle, in which the metal atom, X'i and X' 2 form a hydrocarbocyclic ring containing from about 3 to about 20 carbon atoms; and R is a substituent on one of the cyclopentadienyl radicals which is also bound to the metal atom. With a second compound which is an ion exchange compound comprising a cation which will irreversible react with a ligand on said first component and an anion which is a single coordination complex comprising a plurality of lipophilic radicals covalently coordinated to and shielding a central charge-bearing metal or metalloid atom, which anion is, bulky and stable to reactions involving the cation of the second component. Upon combination of the first and second components, the cation of the second component reacts with one of the ligands of the first component, thereby generating an ion pair consisting of a Group IV-B metal cation with a formal coordination number of 3 and a valence of +4 and the aforementioned anion, which anion is compatible with and noncoordinating towards the metal cation formed from the first component. Suitable second components may be represented by the following general formula: Wherein: L' is a neutral Lewis base; H is a hydrogen atom; [L'-H] is a Bronsted acid; M' is a metal or ...

Process and catalyst for producing reactor blend polyolefins

Polyolefin reactor blends obtained by polymerization of ethylene and higher alpha-olefins in the presence of a catalyst system comprising two or more metallocenes and alumoxane.

CATALYST FOR $g(a)-OLEFIN POLYMERIZATION AND PRODUCTION OF POLY-$g(a)-OLEFIN THEREWITH

A process for polymerizing α-olefin by using a catalytic system prepared by bringing a reaction product of a halogenated metallocene compound with an organometallic compound into contact with a compound which forms a stable anion when reacted with the reaction product. A polyolefin can be obtained at a high catalytic activity by using an inexpensive catalyst by this process.

Catalyst system of enhanced productivity

This invention relates to catalyst systems, and a method for using such system, for the enhanced production of homo and copolymer products of olefin, diolefin and/or acetylenically unsaturated monomers. This invention catalyst system comprises a Group III-A element compound for improving the productivity of an olefin polymerization catalyst which is the reaction product of a metallocene of a Group IV-B transition metal and an ionic activator compound comprising a cation capable of donating a proton or which will irreversibly react with at least one ligand contained in the Group IV-B metal compound and an anion which is bulky, labile and noncoordinateable with the Group IV transition metal cation produced upon reaction of the metallocene and activator compound to form the catalyst component of the catalyst system.

Catalysts and process for producing olefin polymers

The invention relates to novel catalysts for polymerization of ethylene or α-olefins, comprising a metallocene, an organoaluminum compound an ionic compound, and a boron compound, or comprising an ionic metallocene, an organoaluminum compound and a boron compound, and a process for polymerization of ethylene or α-olefins using the above catalysts.

Process for polymerizing olefins

Process for polymerizing olefins using a catalyst composed of a transition metal catalyst component, a specified concentration of an aluminoxane component and an organoaluminium component. In the process of this invention, the catalyst exhibits excellent polymerization activity with the use of a small concentration of the aluminoxane. The polymerization process gives olefin polymers having a narrow molecular weight distribution, and by the copolymerization of two or more olefins gives olefin copolymers having a narrow molecular weight distribution and a narrow composition distribution.

Process and a catalyst for preventing reactor fouling

A support containing methylalumoxane and derivatives thereof is described which is formed by an incipient impregnation technique. The most preferred support is silica. Incipient impregnation in accordance with the invention provides a supported alumoxane, methylalumoxane, which substantially eliminates the problem of fluid bed reactor fouling when methylalumoxane is introduced into the reactor during its operation. In accordance with the invention, the process comprises providing methylalumoxane activated metallocene compound in particulate form as catalysts in fluid bed gas phase.

High temperature polymerization process using ionic catalysts to produce polyolefins

This invention relates to a process for polymerizing olefins at high pressures in a polymerization medium at high temperature utilizing an ionic olefin polymerization catalyst derived from the reaction of a cyclopentadienyl-containing transition metal compound having a hydrolyzable alkyl or hydride ligand with an ion exchange activator. The ionic catalyst system has been found to be highly active at temperatures of 160° C. or greater, to provide a process capable of producing polymer products of desired chemical and physical properties at high production rates.

Catalyst systems for producing broad molecular weight polyolefin

A catalyst system comprising a bridged fluorenyl-containing metallocene, an unbridged metallocene, and a suitable cocatalyst and the use of such catalyst systems to produce olefin polymers. Also novel olefin polymers produced by those processes.

Monocyclopentadienyl metal compounds for ethylene-α-olefin-copolymer production catalysts

Described are certain mono(cyclopentadienyl) Group IV B metal compounds, catalyst systems comprising such mono(cyclopentadienyl) metal compounds and an activator, and to a process using such catalyst systems for the production of polyolefins, particularly ethylene- alpha -olefin copolymers having a high molecular weight and high level of alpha -olefin incorporation.

Catalyst compositions and process for preparing polyolefins

Catalyst compositions comprising metallocene complexes having polymerisable may be used for the preparation of polyolefins. The catalyst compositions may be in the form of polymers comprising the metallocene complex and may be suitably supported on inorganic supports. Polymers having a broad range of density and melt indices as well as low hexane extractables and excellent powder morphology and flowability may be obtained by use of the catalyst compositions. Preferred metallocene complexes are zirconium complexes in which the polymerisable group is vinyl.

Use of group 13 metal perfluoroaryl fluoro anions in metallocene catalysts for olefin polymerization

A group 13 perfluoroaryl fluoro anion such as tris(2,2',2'-nonafluorobiphenyl)fluoroaluminate (PBA)- and its role as a cocatalyst in metallocene-mediated olefin polymerization is disclosed.

Supported catalyst system, its preparation and its use in olefin polymerisation

Catalyst delivery method, a catalyst feeder and their use in a polymerization process

The present invention relates to an improved catalyst delivery method for introducing a supported bulky ligand metallocene-type catalyst system to a reactor for polymerizing one or more olefin(s). In particular, the invention provides for a method of introducing a supported metallocene-type catalyst system into a polymerization reactor by and in the presence of a carrier solution of an antistatic agent and a liquid diluent. Also, the invention is directed toward a catalyst feeder for use in a polymerization process.

Catalyst delivery method, a catalyst feeder and their use in a polymerization process

The present invention relates to an improved catalyst delivery method for introducing a supported bulky ligand metallocene-type catalyst system to a reactor for polymerizing one or more olefin(s). In particular, the invention provides for a method of introducing a supported metallocene-type catalyst system into a polymerization reactor by and in the presence of a carrier solution of an antistatic agent and a liquid diluent. Also, the invention is directed toward a catalyst feeder for use in a polymerization process.

Catalysts, method of preparing these catalysts, and polymerization processes wherein these catalysts are used

The present invention relates to catalysts, to a method for preparing such catalysts, to a method of using such catalysts and to polymeric products produced with such catalysts. The catalysts are particularly useful in the polymerization of - olefins, diolefins and acetylenically unsaturated monomers. The improved catalysts are prepared by combining at least one first compound which is a bis(cyclopentadienyl) derivative of a metal of Group IV-B of the Periodic Table of the Elements capable of forming a cation formally having a coordination number of 3 and a valence of +4 and at least one second compound comprising a cation capable of donating a proton and a compatible noncoordinating anion comprising a plurality of boron atoms, which anion is both bulky and labile, and capable of stabilizing the Group IV-B metal cation without interfering with said Group IV-B metal cation's or its decomposition product's ability to polymerize α-olefin, diolefins and/or acetylically unsaturated monomers.

Process and a catalyst for preventing reactor fouling

A support containing methylalumoxane and derivatives thereof is described which is formed by an incipient impregnation technique. The most preferred support is silica. Incipient impregnation in accordance with the invention provides a supported alumoxane, methylalumoxane, which substantially eliminates the problem of fluid bed reactor fouling when methylalumoxane is introduced into the reactor during its operation. The process comprises providing methylaluminoxane in particulate form for use as a catalytic component in the fluidized bed gas phase polymerization process. In accordance with the invention, the process comprises providing methylalumoxane activated metallocene compound in particulate form as catalysts in fluid bed gas phase.

Método aperfeiçoado para fornecimento de catalisador, um alimentador de catalisador e o uso deles em um processo de polimerização

Patente de Invenção: <B>"MéTODO APERFEIçOADO PARA FORNECIMENTO DE CATALISADOR, UM ALIMENTADOR DE CATALISADOR E O USO DELES EM UM PROCESSO DE POLIMERIZAçãO"<D>. A presente invenção refere-se a um método de fornecimento de catalisador aperfeiçoado para introduzir um sistema de catalisador do tipo de metaloceno de ligando volumoso suportado para um reator, para a polimerização de uma ou mais olefinas. Em particular, a invenção proporciona um método de introdução de um sistema de catalisador do tipo de metaloceno suportado em um reator de polimerização por e na presença de uma solução em veículo de um agente antiestático e de um diluente líquido. Também, a invenção é direcionada no sentido de um alimentador de catalisador para uso em um processo de polimerização.

Catalyst delivery method and catalyst feeder

The present invention relates to an improved catalyst delivery method for introducing a supported bulky ligand metallocene-type catalyst system to a reactor for polymerizing one or more olefin(s). In particular, the invention provides for a method of introducing a supported metallocene-type catalyst system into a polymerization reactor by and in the presence of a carrier solution of an antistatic agent and a liquid diluent. Also, the invention is directed toward a catalyst feeder for use in a polymerization process.

CATALYST ADDING METHOD AND CATALYST ADDING DEVICE

Catalyst delivery method, a catalyst feeder and their use in a polymerization process

The present invention relates to an improved catalyst delivery method for introducing a supported bulky ligand metallocene-type catalyst system to a reactor for polymerizing one or more olefin(s). In particular, the invention provides for a method of introducing a supported metallocene-type catalyst system into a polymerization reactor by and in the presence of a carrier solution of an antistatic agent and a liquid diluent. Also, the invention is directed toward a catalyst feeder for use in a polymerization process.

Catalyst delivery method and catalyst feeder

The present invention relates to an improved catalyst delivery method for introducing a supported bulky ligand metallocene-type catalyst system to a reactor for polymerizing one or more olefin(s). In particular, the invention provides for a method of introducing a supported metallocene-type catalyst system into a polymerization reactor by and in the presence of a carrier solution of an antistatic agent and a liquid diluent. Also, the invention is directed toward a catalyst feeder for use in a polymerization process.

Mixed metallocene catalyst systems containing a poor comonomer incorporator and a good comonomer incorporator

The present invention provides polymerization catalyst compounds, catalyst systems including these catalyst compounds, and to their use in the polymerization of ethylene and at least one comonomer. In particular, the invention provides a catalyst system comprising a poor comonomer incorporating catalyst compound and a good comonomer incorporating catalyst compound. Preferably, the low comonomer incorporating catalyst compound is a metallocene containing at least one substituted or unsubstituted fused ring cyclopentadienyl based ligand which is substantially directed to the front of the molecule, contains a long bridging group, or which contains a methyl substitution pattern which correlates to poor comonomer incorporation. The invention also provides methods of selecting the poor comonomer incorporating metallocene to pair with the good comonomer incorporating metallocene to produce polymers that are easy to process into a variety of articles, especially polyethylene based film, having enhanced properties.

Methods for reducing static charge of a catalyst and methods for using the catalyst to produce polyolefins

Catalysts and methods for making and using the same are provided. The method for fabricating a catalyst may includes contacting a supported catalyst with a monomer under conditions that reduce an overall charge of the catalyst to less than about 75% of an initial charge of the catalyst. A method for polymerization may include introducing a pre-polymerized catalyst and one or more olefins into a gas phase fluidized bed reactor, operating the reactor at conditions sufficient to produce a polyolefin, wherein the polymerization is carried out in the substantial absence of any continuity additives.

Temperature control of MW in olefin polymerization using supported metallocene catalyst

In gas phase polymerizations and copolymerizations of ethylene, temperature controls the molecular weight, expressed as MI (wherein MI is measured according to ASTM D-1238 Condition E), of the resin product. Increase in polymerization temperature produces decrease in MI; whereas, decrease in polymerization temperature produces increase in MI.

Process and a catalyst for preventing reactor fouling

A support containing methylalumoxane and derivatives thereof is described which is formed by an incipient impregnation technique. The most preferred support is silica. Incipient impregnation in accordance with the invention provides a supported alumoxane, methylalumoxane, which substantially eliminates the problem of fluidized bed reactor fouling when methylalumoxane is introduced into the reactor during its operation. In accordance with the invention, the process comprises providing methylalumoxane activated metallocene compound in particulate form as catalysts in fluidized bed gas phase operation.

Componente e catalisador para a polomerização de olefinas e processo de polimerização

Catalisador e processo para a polimerização de olefinas

ZIEGLER-NATTA CATALYSTS WITH METALOCENES FOR OLEFIN POLYMERIZATION.

ESTA INVENCION SE REFIERE A UN PROCESO PARA PRODUCIR UN CATALIZADOR EN EL CUAL UN METALOCENO ES INCLUIDO EN LA SINTESIS DE UN CATALIZADOR DE ZIEGLER-NATTA Y UN PROCESO PARA USAR EL CATALIZADOR EN LA POLIMERIZACION DE OLEFINAS, ESPECIFICAMENTE, PROPILENO, PARA PRODUCIR UN PRODUCTO POLIMERICO CON POLIDISPERSIBIDAD AMPLIA. THIS INVENTION REFERS TO A PROCESS TO PRODUCE A CATALYST IN WHICH A METALOCENE IS INCLUDED IN THE SYNTHESIS OF A ZIEGLER-NATTA CATALYST AND A PROCESS FOR USING THE CATALYST IN OLEFIN POLYMERIZATION, SPECIFICALLY, A PROPYLENE PROPELLER WITH WIDE POLIDISPERSIBITY.

Catalyst system for olefin polymerization

Process for producing α-olefin polymer

A catalyst for olefin polymerization is provided which comprises, as the components, a) a metallocene compound, b) an ionizing ionic compound, c) an organoaluminum compound, and d) a Lewis base compound. This catalyst has a stable active species and improves productivity of an olefin polymer without deterioration of the catalytic activity.

Catalyst for αE --olefin polymerization containing a Lewis base

A catalyst for olefin polymerization is provided which comprises, as the components, a) a metallocene compound, b) an ionizing ionic compound, c) an organoaluminum compound, and d) a Lewis base compound. This catalyst has a stable active species and improves productivity of an olefin polymer without deterioration of the catalytic activity the metallocene is represented by General Formula (1) or (2) where Cp-containing ligands may be Cp, fluorenyl, indenyl or tetrahydroindenyl and where the metal is a group 4 metal of the periodic table.

Supported metallocene catalyst systems

This invention relates generally to supported metallocene catalyst systems and to methods for their production which comprising combining inorganic porous support material having an average particle size of from about 30μ to about 40μ, metallocene, and alumoxane wherein the amount of metallocene is in the range of 0.005 to 0.06 mmoles transition metal/g support material and the ratio of aluminum to transition metal is in the range of 10:1 to 300:1. Specifically, this invention relates to supported metallocene catalyst systems having improved metallocene loading and optionally reduced support particle size. These catalyst systems are particularly useful for the polymerization of ethylene polymers.

重合方法

(57)【要約】 本願は、嵩高い配位子遷移金属メタロセン型触媒または触媒系を用いてモノマーおよびコモノマーを重合する方法であって、プロセスが、コモノマーの任意の異性体の不存在下または低量の状態で運転される方法に関する。本発明の方法におけるこれらの異性体のレベルは、無しまたは閾値レベル未満に維持される。メタロセン型触媒を用いる重合方法において使用されるコモノマーのある種の異性体の除去が改良された方法をもたらすことが見出された。

Supported ionic metallocene catalysts for olefin polymerization

Polymerization process

Use of Lewis Bases for activity reduction in metallocene catalyzed olefin polymerization reactions

Lewis Bases are used to control the activity of an olefin polymerization reaction and, if need be, to substantially terminate the entire reaction completely. Such activity reduction or termination of the reaction by the one or more Lewis Bases can be completely reversed by the simple introduction of additional co-catalyst. The use of such Lewis Bases to control static is also disclosed.

Process for polymerizing olefins

Method for polymerization of olefines,diolefins and acetylene unsaturated compounds

Catalysts based on derivatives of a bis(cyclopentadienyl)group ivb metal compound,their preparation and their use in polymerization processes

Polymerization catalyst for .alpha.-olefin and method for preparing poly-.alpha.-olefin by using it

The present invention is directed to a method for polymerizing an .alpha.-olefin characterized by using a catalyst system which is obtained by reacting a halogenated metallocene compound with an organometallic compound, and then bringing the resultant reaction product into contact with a compound which will be a stable anion by reaction with the reaction product of the halogenated metallocene compound and the organometallic compound. When the method of the present invention is carried out, a polyolefin can be obtained by the use of the inexpensive catalyst in a high activity per unit amount of the catalyst.

Olefin polymerization catalyst, process for its preparation, and its use

A supported polymerization catalyst which is applicable in all polymerization processes is comprised of the reaction product of (A) a supported organoaluminum compound and (B) a metallocene catalyst component.

Method for making and using a supported metallocene catalyst system

The invention relates to a novel process for producing a supported metallocene catalyst system useful for the polymerization and/or copolymerization of olefins, alpha-olefins, and/or diolefins which results in a catalyst product which during polymerization, produces minimal to no reactor fouling and polymer of controlled morphology. The invention is particularly useful for but not limited to polymerizing propylene or copolymerizing propylene with olefins having two or more carbon atoms. The novel support technique described herein results in a catalyst which will obtain polymer product having controlled, uniform particle size, narrow molecular weight distribution, high bulk density and depending upon the metallocene employed and monomers polymerized, stereoregularity.

Process for producing olefin polymer

Novel catalysts for polymerization of ethylene or α-olefins, comprising a metallocene, an organoaluminum compound an ionic compound, and a boron compound, or comprising an ionic metallocene, an organoaluminum compound and a boron compound. Process for polymerization of ethylene or α-olefins by use of the above catalysts.

Polymerization process and catalyst systems useful therein

This invention relates to polymerization processes and to catalyst systems useful therein. Particularly, the invention relates to metallocene catalysts useful in a continuous gas phase polymerization process for producing high molecular weight polymers.

Catalyst systems and process for producing broad molecular weight distribution polyolefin

A catalyst system comprising a bridged fluorenyl-containing metallocene, an unbridged metallocene, and a suitable cocatalyst and the use of such catalyst systems to produce olefin polymers. Also novel olefin polymers produced by those processes.

Controlled particle size polyolefins from silica supported prepolymerized matallocene catalyst

The invention relates to a novel process for producing a supported metallocene catalyst system useful for the polymerization and/or copolymerization of olefins, alpha-olefins, and/or diolefins which results in a catalyst product which during polymerization, produces minimal to no reactor fouling and polymer of controlled morphology. The invention is particularly useful for but not limited to polymerizing propylene or copolymerizing propylene with olefins having two or more carbon atoms. The novel support technique described herein results in a catalyst which will obtain polymer product having controlled, uniform particle size, narrow molecular weight distribution, high bulk density and depending upon the metallocene employed and monomers polymerized, stereoregularity.

Ziegler-Natta catalysts with metallocenes for olefin polymerization

This invention relates to a process for making a catalyst in which a metallocene is included in the synthesis of a Ziegler-Natta catalyst and a process for using the catalyst in the polymerization of olefins, specifically, propylene, to produce a polymer product with broad polydisperisty.

Polymeric supported catalysts for olefin polymerization

The described invention provides a low fouling, high particle density polymerization process and an olefin polymerization catalyst composition comprising the reaction product of a) an organic polymeric support i) having a surface area of from about 1 to 10 m 2 /g and ii) functionalized with an acidic proton-containing ammonium salt of a non-coordinating anion, and b) an organometallic transition metal compound having ancillary ligands, at least one labile ligand capable of abstraction by protonation by said ammonium salt and at least one labile ligand into which an olefinic monomer can insert for polymerization. In a preferred embodiment, the polymeric support has a surface area of ≦10 m 2 /g and is particularly suitable for use with high activity organometallic, transition metal catalyst compounds.

Polymeric supported catalysts

This invention relates to a catalyst system comprising a substituted, bridged bisindenyl metallocene supported on a polymeric support wherein the metallocene is activated for polymerization by an ionizing reaction and stabilized in cationic form with a noncoordinating anion. A protonated ammonium salt of a noncoordinating amine is covalently bonded to the support. Propylene polymers produced by these supported catalyst systems have melting points and polymer microstructures similar to propylene polymers produced using analogous unsupported catalyst systems.

하이브리드 담지 메탈로센 촉매, 이의 제조방법, 및 이를 이용한 폴리올레핀의 제조방법

본 발명은 하이브리드 담지 메탈로센 촉매, 이의 제조방법, 및 이를 이용한 폴리올레핀의 제조방법에 관한 것으로, 담체;에 알루미늄을 포함하는 유기금속 화합물인 조촉매 성분 1; 붕소를 포함하는 유기금속 화합물인 조촉매 성분 2; 메탈로센 화합물 1; 및 메탈로센 화합물 2가 담지되어 있는 것을 특징으로 하는 하이브리드 담지 메탈로센 촉매, 이의 제조방법, 및 이를 이용한 폴리올레핀의 제조방법을 제공한다. 본 발명의 하이브리드 담지 메탈로센 촉매는 기존의 담지 메탈로센 촉매에 알콕사이드 또는 아릴옥사이 등이 치환된 리간드를 갖는 서로 다른 2종 이상의 메탈로센 화합물을 포함시키고 보레이트 화합물을 제2의 조촉매로 담지시킴으로써 촉매 활성이 기존 메탈로센 담지 촉매에 비교하여 현저하게 높고 분자량분포의 조절이 용이한 효과를 갖는다.

Supported Metallocene Catalyst, Method for Preparing the Same, and Method for Preparing Polyolefin using the Same

본 발명은 담지 메탈로센 촉매, 이의 제조방법, 및 이를 이용한 폴리올레핀의 제조방법에 관한 것으로, 담체;에 알루미늄을 포함하는 유기금속 화합물인 조촉매 성분 1; 붕소를 포함하는 유기금속 화합물인 조촉매 성분 2; 및 메탈로센 화합물이 담지되어 있는 것을 특징으로 하는 담지 메탈로센 촉매, 이의 제조방법, 및 이를 이용한 폴리올레핀의 제조방법을 제공한다. 본 발명의 담지 메탈로센 촉매는 기존의 담지 메탈로센 촉매에 알콕사이드 또는 아릴옥사이 등이 치환된 리간드를 갖는 메탈로센 화합물을 포함시키고 보레이트 화합물을 제2의 조촉매로 담지시킴으로써 촉매 활성이 기존 메탈로센 담지 촉매에 비교하여 현저하게 높은 효과를 갖는다. The present invention relates to a supported metallocene catalyst, a method for preparing the same, and a method for preparing polyolefin using the same, comprising: a promoter; an organic metal compound comprising aluminum on a carrier; Cocatalyst component 2, which is an organometallic compound comprising boron; And a supported metallocene catalyst, a method for preparing the same, and a method for producing a polyolefin using the same, wherein the metallocene compound is supported. The supported metallocene catalyst of the present invention includes a metallocene compound having a ligand substituted with an alkoxide or an aryloxane in the existing supported metallocene catalyst and supports the borate compound as a second cocatalyst. It has a remarkably high effect compared to the metallocene supported catalyst.

다종 메탈로센 담지 촉매의 제조방법 및 이를 이용한 폴리올레핀의 제조방법

본 발명은 다종 메탈로센 담지 촉매의 제조방법, 및 이를 이용한 폴리올레핀의 제조방법에 관한 것으로, 담체에 메탈로센 화합물 1을 반응시켜 메탈로센 화합물 1이 담지된 담체를 제조하는 단계; 메탈로센 화합물 1이 담지된 담체에 알루미늄을 포함하는 유기 금속 화합물인 조촉매 1을 반응시켜 메탈로센 화합물 1과 조촉매 1이 담지된 담체를 제조하는 단계; 메탈로센 화합물 1과 조촉매 1이 담지된 담체에 메탈로센 화합물 2를 반응시켜 메탈로센 화합물 1, 조촉매 1 및 메탈로센 화합물 2가 담지된 담체를 제조하는 단계; 및 메탈로센 화합물 1, 조촉매 1, 및 메탈로센 화합물 2가 담지된 담체에 붕소를 포함하는 유기금속 화합물인 조촉매 2를 반응시켜 메탈로센 화합물 1, 메탈로센 화합물 2, 조촉매 1, 및 조촉매 2가 담지된 담지 메탈로센 촉매를 제조하는 단계;를 포함하는 다종 메탈로센 담지 촉매의 제조방법을 제공한다. 본 발명의 다종 메탈로센 담지 촉매의 제조방법은 담체에 알루미늄을 포함하는 유기금속 화합물을 담지시키는 단계 전후에 알콕사이드 또는 아릴옥사이드 등이 치환된 리간드를 갖는 2종 이상의 메탈로센 화합물을 각각 담지시키고, 이 후에 붕소를 포함하는 보레이트계 화합물을 제2의 조촉매로 담지시킴으로써 촉매 활성이 기존 메탈로센 담지 촉매에 비교하여 현저하게 높고 분자량분포의 조절이 용이한 효과를 갖는다.

Method for preparing supported metallocene catalyst and method for preparing polyolefin using the same

The present invention relates to a method for preparing a supported metallocene catalyst, and a method for preparing polyolefin using the same, in which the supported metallocene catalyst prepared from the simple process according to the method for preparing the supproted metallocene catalyst of the presesnt invention can apply to the polymerization of the polyolefin that is polymerized at low pressure or high pressure; the molecular weight distribution of polyolefin prepared can be easily controlled; and there are effects such that its catalyst activity is significantly higher than that of the existed supported metallocene catalyst, and the molecualr weight distribution can be easily controlled.