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公开(公告)号：US4380608A
公开(公告)日：1983-04-19
申请号：US347425
申请日：1982-02-10
IPC分类号： C08F297/08
CPC分类号： C08F297/083
摘要： A propylene-ethylene block copolymer in the presence of a catalyst comprises as main components, a solid titanium-containing catalytic component and an organoaluminum compound having the formulaAIR.sub.m.sup.1 Cl.sub.3-m(R.sup.1 represents a C.sub.1-20 hydrocarbon moiety; and m is 3.gtoreq.m>1.5) by producing a homopolymer of propylene or a propylene-ethylene copolymer by polymerizing propylene or both propylene and ethylene at a vapor phase propylene concentration of 90 mol % or higher based on the sum of propylene and ethylene in a first step and producing a propylene-ethylene block copolymer by copolymerizing propylene and ethylene at a vapor phase propylene concentration of less than 90 mol % based on the sum of propylene and ethylene in the presence of the polymer resulted in the first step and the catalyst in a second step is produced by newly adding an aluminum compound having the formulaAlR.sub.n.sup.2 X.sub.3-n(R.sup.2 represents a C.sub.1-20 hydrocarbon moiety; X represents a halogen atom and n is 1.5.gtoreq.n.gtoreq.0) to the components for the copolymerization in the second step.
摘要翻译： 在催化剂存在下的丙烯 - 乙烯嵌段共聚物包含固体含钛催化组分和具有下式的有机铝化合物：其中，式（I 1）表示碳原子数为1〜20的烃部分，m为3 / = m> 1.5），通过在第一步骤中丙烯和乙烯的总和相对于丙烯和乙烯的气相丙烯浓度为90摩尔％以上，通过丙烯或丙烯和乙烯两者聚合来制备丙烯或丙烯 - 乙烯共聚物的均聚物，以及 通过在气相丙烯浓度小于90mol％的丙烯和乙烯下共聚合丙烯 - 乙烯嵌段共聚物，基于丙烯和乙烯的总和在聚合物存在下导致第一步骤，催化剂在第二步中 通过新添加具有式AlRn2X3-n（R2表示C1-20烃部分; X表示卤素原子，n表示1.5> / = n> / = 0）的铝化合物， 用于第二步中的共聚。
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公开(公告)号：US4357452A
公开(公告)日：1982-11-02
申请号：US169453
申请日：1980-07-16
CPC分类号： C08F10/06
摘要： Propylene is polymerized in the presence of a catalytic system of the type which comprises a solid titanium trichloride-based complex serving as a catalyst, said complex having an atomic ratio of aluminum to titanium in the range of below 0.15:1 and containing a complexing agent, and an organic aluminum compound of the general formula, AlR.sup.1.sub.n Cl.sub.3-n wherein R.sup.1 represents an n-propyl group or an n-hexyl group and n is a value of 1.95-2.10. The catalytic system may further comprise an electron-donor compound as a third catalytic component.
摘要翻译： 丙烯在催化体系的存在下聚合，该催化体系包含固体三氯化钛基络合物作为催化剂，所述络合物的铝与钛的原子比在0.15:1以下，并含有络合剂 和通式为AlR1nCl3-n的有机铝化合物，其中R1表示正丙基或正己基，n为1.95-2.10的值。 催化体系还可包括作为第三催化组分的电子给体化合物。
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公开(公告)号：US4258161A
公开(公告)日：1981-03-24
申请号：US5471
申请日：1979-01-22
CPC分类号： C08F10/06
摘要： Propylene is polymerized in the presence of a catalytic system of the type which comprises a solid titanium trichloride-based complex serving as a catalyst, said complex having an atomic ratio of aluminum to titanium in the range of below 0.15:1 and containing a complexing agent, and an organic aluminium compound of the general formula, AlR.sub.n.sup.1 Cl.sub.3-n wherein R.sup.1 represents an n-propyl group or an n-hexyl group and n is a value of 1.95-2.10. The catalytic system may further comprise an electron-donor compound as a third catalytic component.
摘要翻译： 丙烯在催化体系的存在下聚合，该催化体系包含固体三氯化钛基络合物作为催化剂，所述络合物的铝与钛的原子比在0.15:1以下，并含有络合剂 和通式为AlRn1Cl3-n的有机铝化合物，其中R1表示正丙基或正己基，n为1.95-2.10的值。 催化体系还可包括作为第三催化组分的电子给体化合物。
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公开(公告)号：US4229558A
公开(公告)日：1980-10-21
申请号：US71388
申请日：1979-08-30
CPC分类号： C08F10/00
摘要： In a process for preparing polyolefin by polymerizing an olefin in the presence of a catalyst system combining an organoaluminum compound and a titanium-containing solid catalytic component prepared by mixing (a) water and/or a hydroxy compound, (b) a Grignard reagent and (c) a titanium tetrahalide, the components (a) (b) or (c) or the reaction mixture of two or three components thereof is contacted with (d) one or more electron donor selected from the group consisting of amines, carboxylic acid amides, phosphines, phosphine oxides, phosphoric esters, phosphorous esters, phosphoric acid amides, ketones and carboxylic esters. The polyolefin having high isotactic index can be obtained.
摘要翻译： 在通过混合（a）水和/或羟基化合物制备的有机铝化合物和含钛固体催化剂组分的催化剂体系存在下制备聚烯烃的方法中，（b）格氏试剂和 （c）四卤化钛，组分（a）（b）或（c）或其两种或三种组分的反应混合物与（d）一种或多种选自胺，羧酸的电子给体 酰胺，膦，氧化膦，磷酸酯，磷酸酯，磷酸酰胺，酮和羧酸酯。 可获得具有高全同立构指数的聚烯烃。
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