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公开(公告)号：EP0361371A3
公开(公告)日：1990-06-20
申请号：EP89117696.8
申请日：1989-09-25
Inventor： Mialki, William Stanley , Noshay, Allen
CPC classification number: C08F10/06 , C08F4/6465
Abstract: A process for homopolymerization or copolymerization comprising contacting propylene or a mixture of alpha-olefins having 2 to 8 carbon atoms containing a major proportion of propylene in the gas phase in at least one reaction zone, under polymerization conditions, with a catalyst system comprising (i) a solid catalyst precursor, which includes magnesium, titanium, a halogen which is chlorine, bromine, or iodine, and a polycarboxylic acid ester containing two ester groups attached to two adjacent carbon atoms wherein the two adjacent carbon atoms and the two carbonyl carbon atoms are coplanar; (ii) a hydrocarbylaluminum cocatalyst; and (iii) a silicon compound having the following formula:
R a Si(OR′) b
wherein
R = a branched chain alkyl having 3 to 20 carbon atoms
R′ = a hydrocarbyl group having 1 to 20 carbon atoms
each R and R′ is alike or different
a = an integer from 1 to 3
b = an integer from 1 to 3
a + b = 4
with the proviso that the atomic ratio of aluminum to silicon is in the range of about 0.5:1 to about 100:1 and the atomic ratio of aluminum to titanium is in the range of about 5:1 to about 300:1.-
2.发明公开Process for the preparation of alphaolefin polymers 失效Verfahren zur Herstellung von alpha-Olefinen。
公开(公告)号：EP0361371A2
公开(公告)日：1990-04-04
申请号：EP89117696.8
申请日：1989-09-25
Inventor： Mialki, William Stanley , Noshay, Allen
CPC classification number: C08F10/06 , C08F4/6465
Abstract: A process for homopolymerization or copolymerization comprising contacting propylene or a mixture of alpha-olefins having 2 to 8 carbon atoms containing a major proportion of propylene in the gas phase in at least one reaction zone, under polymerization conditions, with a catalyst system comprising (i) a solid catalyst precursor, which includes magnesium, titanium, a halogen which is chlorine, bromine, or iodine, and a polycarboxylic acid ester containing two ester groups attached to two adjacent carbon atoms wherein the two adjacent carbon atoms and the two carbonyl carbon atoms are coplanar; (ii) a hydrocarbylaluminum cocatalyst; and (iii) a silicon compound having the following formula:
R a Si(OR′) b
wherein
R = a branched chain alkyl having 3 to 20 carbon atoms
R′ = a hydrocarbyl group having 1 to 20 carbon atoms
each R and R′ is alike or different
a = an integer from 1 to 3
b = an integer from 1 to 3
a + b = 4
with the proviso that the atomic ratio of aluminum to silicon is in the range of about 0.5:1 to about 100:1 and the atomic ratio of aluminum to titanium is in the range of about 5:1 to about 300:1.Abstract translation: 一种均聚或共聚的方法，其包括在聚合条件下，将丙烯或具有2至8个碳原子的含有主要比例丙烯的α-烯烃在气相中在至少一个反应区中与包含（i ）固体催化剂前体，其包括镁，钛，氯，溴或碘的卤素，以及含有两个相邻碳原子上连接的两个酯基的多元羧酸酯，其中两个相邻的碳原子和两个羰基碳原子 是共面的 （ii）烃基铝助催化剂; 和（iii）具有下式的硅化合物：R a Si（OR min）b其中R =具有3至20个碳原子的支链烷基R min =具有1至20个碳原子的烃基，每个R和R min是相同的 或不同的a = 1至3的整数b = 1至3 a + b = 4的整数，条件是铝与硅的原子比在约0.5:1至约100:1的范围内， 铝与钛的原子比在约5:1至约300:1的范围内。
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3.发明公开
公开(公告)号：EP0463609A1
公开(公告)日：1992-01-02
申请号：EP91110483.4
申请日：1991-06-25
Inventor： Baker, Edgar Chapmen , Stakem, Francis Gregory , Noshay, Allen , Lee, Kiu Hee , Marcinkowsky, Arthur Ernest
CPC classification number: C08F10/02 , Y10S526/901 , C08F2/38 , C08F4/68
Abstract: An improved polymerization process for making essentially nonagglomerated ethylene polymers, especially EPR polymers, based on the use of a high activity vanadium catalyst, which utilizes an alkylated metal chain transfer agent to moderate the kinetics of the polymerization reaction so as to avoid formation of an undesirable amount of agglomerated polymer.
Abstract translation: 基于使用高活性钒催化剂，使用烷基化金属链转移剂来抑制聚合反应的动力学，从而避免形成不期望的，改进的基本上非凝聚的乙烯聚合物，特别是EPR聚合物的聚合方法。 附聚聚合物的量。
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