Process for production of olefin polymer
    1.
    发明授权
    Process for production of olefin polymer 失效
    生产烯烃聚合物的方法

    公开(公告)号:US06639030B2

    公开(公告)日:2003-10-28

    申请号:US08545254

    申请日:1995-10-19

    IPC分类号: C08F4642

    摘要: A process for production of an olefin polymer is provided which comprises polymerization of ethylene and/or &agr;-olefin of three of more carbons at a polymerization temperature of not lower than 120° C. with a catalyst comprising a specific metallocene compound having a substituted fluorenyl group, and a compound which reacts with the metallocene compound to form a cationic metallocene compound. The olefin polymer or copolymer produced by the process has narrow composition distribution, narrow molecular weight distribution, and a high molecular weight.

    摘要翻译: 提供一种生产烯烃聚合物的方法,其包括在不低于120℃的聚合温度下聚合具有三个以上碳原子的乙烯和/或α-烯烃与包含具有取代的芴基的特定茂金属化合物的催化剂 和与金属茂化合物反应形成阳离子金属茂化合物的化合物。 通过该方法制备的烯烃聚合物或共聚物具有窄的组成分布,窄的分子量分布和高分子量。

    Process for producing ethylene/&agr;-olefin copolymer
    4.
    发明授权
    Process for producing ethylene/&agr;-olefin copolymer 失效
    生产乙烯/α-烯烃共聚物的方法

    公开(公告)号:US06313240B1

    公开(公告)日:2001-11-06

    申请号:US08198579

    申请日:1994-02-18

    IPC分类号: C08F452

    摘要: A process for producing an ethylene/&agr;-olefin copolymer is provided in which ethylene is copolymerized with an &agr;-olefin having three or more carbons by use of an olefin polymerization catalyst at a polymerization temperature of not lower than 120° C. The olefin polymerization catalyst comprises, as constitutional components, a) a metallocene compound comprising hafnium, b) an ionizing ionic compound, and c) an organoaluminum compound, the ionizing ionic compound (b) being a compound which is capable of changing the metallocene compound (a) into a cationic form and does not further react the cationic form of the metallocene compound.

    摘要翻译: 提供了一种生产乙烯/α-烯烃共聚物的方法,其中乙烯与聚合温度不低于120℃的烯烃聚合催化剂与具有三个或更多个碳的α-烯烃共聚。烯烃聚合 催化剂包含作为构成成分的a)包含铪的茂金属化合物,b)电离离子化合物和c)有机铝化合物,电离化离子化合物(b)是能够改变茂金属化合物(a)的化合物, 成为阳离子形式,不会使阳离子形式的茂金属化合物进一步反应。

    Process for producing ethylene/&agr;-olefin copolymer
    5.
    发明授权
    Process for producing ethylene/&agr;-olefin copolymer 失效
    生产乙烯/α-烯烃共聚物的方法

    公开(公告)号:US06207774B1

    公开(公告)日:2001-03-27

    申请号:US08946857

    申请日:1997-10-08

    IPC分类号: C08F464

    摘要: An ethylene/&agr;-olefin copolymer of a weight-average molecular weight of not less than 40000 is produced by copolymerization of ethylene with an &agr;-olefin having three or more carbons by use of an olefin polymerization catalyst at a polymerization temperature of not lower than 120° C., the olefin polymerization catalyst comprising, as constitutional components, a) a metallocene compound, b) an ionizing ionic compound, and c) an organoaluminum compound, the ionizing ionic compound (b) being a compound which is capable of changing the metallocene compound (a) into a cationic form and does not further react the cationic form of the metallocene compound. This process produces an ethylene/&agr;-olefin copolymer of high molecular weight in high efficiency.

    摘要翻译: 重均分子量不小于40000的乙烯/α-烯烃共聚物是通过使用烯烃聚合催化剂在不低于3的聚合温度下使乙烯与具有3个或更多个碳原子的α-烯烃共聚制备的 作为组成成分的烯烃聚合催化剂包含a)茂金属化合物,b)电离离子化合物和c)有机铝化合物,电离化离子化合物(b)是能够改变的化合物 茂金属化合物(a)成阳离子形式,不会使阳离子形式的茂金属化合物进一步反应。 该方法以高效率产生高分子量的乙烯/α-烯烃共聚物。

    Catalyst for .alpha.E --olefin polymerization containing a Lewis base
    6.
    发明授权
    Catalyst for .alpha.E --olefin polymerization containing a Lewis base 失效
    含有路易斯碱的α-烯烃聚合催化剂

    公开(公告)号:US5817590A

    公开(公告)日:1998-10-06

    申请号:US619884

    申请日:1996-03-20

    摘要: 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.

    摘要翻译: 提供了用于烯烃聚合的催化剂,其包含a)茂金属化合物,b)电离离子化合物,c)有机铝化合物,和d)路易斯碱化合物。 该催化剂具有稳定的活性物质并且提高了烯烃聚合物的生产率,而不降低催化活性,金属茂由通式(1)或(2)表示,其中含Cp的配位体可以是Cp,芴基,茚基或四氢茚基, 金属是周期表的第4族金属。

    Olefin polymerization catalyst and olefin polymerization process
    9.
    发明授权
    Olefin polymerization catalyst and olefin polymerization process 失效
    烯烃聚合催化剂和烯烃聚合方法

    公开(公告)号:US5407882A

    公开(公告)日:1995-04-18

    申请号:US100174

    申请日:1993-08-02

    摘要: A catalyst for polymerization of olefin is provided which comprises (A) a metallocene compound, (B) an organoaluminum compound, and (C) a metal borate or a metal aluminate. The metallocene compound (A) is represented by the general formula (1) below: ##STR1## where Cp.sup.1 and Cp.sup.2 are cyclopentadienyl group; R.sup.1 is an alkylene, arylalkylene, dialkylsilylene, dialkylgermanylene, alkylphosphinediyl, or alkylimino group, R.sup.1 crosslinking Cp.sup.1 and Cp.sup.2 together; m is 0 or 1; M is titanium, zirconium, or hafnium; and R.sup.2 and R.sup.3 are independently hydrogen, halogen, or a hydrocarbon group, an alkoxy group, or an aryloxy group having 1 to 12 carbons, the organic aluminum compound (B) is represented by the general formula (2) below:AlR.sup.4.sub.3 (2)where each R.sup.4 is independently hydrogen, alkyl, alkoxy, or an aryl group, at least one R.sup.4 being an alkyl group, and the metal borate or the metal aluminate (C) being represented by the general formula (3):(C(L).sub.n).sub.b (A).sub.d (3)where C is an alkali metal cation or an alkaline earth metal cation; L is a Lewis base; A is an art ion having elemental boron or elemental aluminum; n is an integer of from 0 to 6; b and d are respectively an integer selected to balance the electric charge.

    摘要翻译: 提供了一种用于烯烃聚合的催化剂,其包含(A)茂金属化合物,(B)有机铝化合物和(C)金属硼酸盐或金属铝酸盐。 金属茂化合物(A)由下述通式(1)表示:二烯基; R1是亚烷基,芳基亚烷基,二烷基亚甲硅烷基,二烷基炔丙基,烷基亚膦酰基或烷基亚氨基,R1交联Cp1和Cp2; m为0或1; M是钛,锆或铪; R2和R3独立地为氢,卤素或烃基,烷氧基或碳数为1〜12的芳氧基,有机铝化合物(B)由下述通式(2)表示:AlR43(2 )其中每个R 4独立地是氢,烷基,烷氧基或芳基,至少一个R 4是烷基,并且金属硼酸盐或金属铝酸盐(C)由通式(3)表示:(C( L)n)b(A)d(3)其中C是碱金属阳离子或碱土金属阳离子; L是路易斯碱; A是具有元素硼或元素铝的艺术离子; n为0〜6的整数。 b和d分别是选择用于平衡电荷的整数。

    Polyethylene composition and process for producing same
    10.
    发明授权
    Polyethylene composition and process for producing same 有权
    聚乙烯组合物及其制备方法

    公开(公告)号:US07678866B2

    公开(公告)日:2010-03-16

    申请号:US10832342

    申请日:2004-04-27

    摘要: A polyethylene composition prepared by polymerizing ethylene and an optional olefin with ≧3 carbon atoms in the presence of a macromonomer, is provided. The macromonomer is a vinyl-terminated ethylene polymer prepared by polymerizing ethylene and an optional olefin with ≧3 carbon atoms, and the macromonomer has (A) Mn≧5,000, and Mw/Mn=2-5. The polyethylene composition comprises (C) branched polyethylene prepared by copolymerizing ethylene, the macromonomer and an optional olefin with ≧3 carbon atoms, and the macromonomer. The polyethylene composition has (D) a density of 0.890-0.980 g/cm3, (E) Mw=30,000-10,000,000, (F) Mw/Mn=2-30, (G) a long chain branch frequency of 0.01-3 per 1,000 C atoms, and (H) a shrinking factor (g′ value) of 0.1-0.9 as measured by GPC/intrinsic-viscosity. The polyethylene composition can be finely divided particles having (P) a powder bulk density of 0.15-0.50 g/cm3.

    摘要翻译: 提供了通过在大分子单体的存在下聚合乙烯和具有≥3个碳原子的任选的烯烃制备的聚乙烯组合物。 大分子单体是通过聚合乙烯和具有≥3个碳原子的任选烯烃制备的乙烯基封端的乙烯聚合物,并且大分子单体具有(A)Mn≥5000,Mw / Mn = 2-5。 聚乙烯组合物包含(C)通过共聚乙烯,大分子单体和任选的具有≥3个碳原子的烯烃制备的支链聚乙烯和大分子单体。 聚乙烯组合物具有(D)密度为0.890-0.980g / cm 3,(E)Mw = 30,000-10,000,000,(F)Mw / Mn = 2-30,(G)长链支化频率为0.01-3 1000个C原子,(H)通过GPC /固有粘度测定的收缩因子(g'值)为0.1-0.9。 聚乙烯组合物可以是具有(P)粉末堆积密度为0.15-0.50g / cm 3的细碎颗粒。