Ethylene copolymer compositions
    4.
    发明授权
    Ethylene copolymer compositions 失效
    乙烯共聚物组合物

    公开(公告)号:US06506866B2

    公开(公告)日:2003-01-14

    申请号:US08857816

    申请日:1997-05-16

    IPC分类号: C08F21002

    摘要: Disclosed is a novel ethylene copolymer by copolymerizing an ethylene and at least one comonomer selected from a compound represented by the formula H2C═CHR wherein R is an alkyl group or an aryl group, and a diene, by slurry polymerization process in the presence of a solid catalyst system comprising a support, a transition metal compound and an activator capable of converting the transition metal compound into a catalytically active transition metal complex. The produced copolymer has a density of from 0.870 to 0.980 and a molecular weight distribution (Mw/Mn) of from 3 to 10, and exhibiting GPC/FT-IR characteristics and CFC characteristics, both of which define a comonomer content distribution, wherein, in one aspect, the lower the molecular weight of a copolymer fraction in a molecular weight distribution of an ethylene copolymer, the lower the comonomer content of the copolymer fraction; and, in the other aspect, the higher the molecular weight of a copolymer fraction, the higher the comonomer content of the copolymer fraction, so that ethylene copolymer exhibits high impact strength and excellent ESCR properties. Further, the ethylene copolymer contains substantially no impurites such as a wax, a gel and the like. Thus, the ethylene copolymer and blend compositions therefrom can be advantageously used for the production of film, fibers, foams or sheets including blown film, cast films, laminate films, blow-molded articles, injection molded articles, pipes, coating materials for cables, and the like.

    摘要翻译: 公开了一种新型乙烯共聚物,其通过在存在下通过淤浆聚合方法将乙烯和至少一种选自式H2C = CHR表示的化合物(其中R为烷基或芳基)和二烯的共聚单体共聚 固体催化剂体系,其包括载体,过渡金属化合物和能够将过渡金属化合物转化为催化活性的过渡金属络合物的活化剂。 制得的共聚物的密度为0.870〜0.980,分子量分布(Mw / Mn)为3〜10,表现出GPC / FT-IR特性和CFC特性,均为共聚单体含量分布, 在一个方面,共聚物部分在乙烯共聚物的分子量分布中的分子量越低,共聚物部分的共聚单体含量越低; 而在另一方面,共聚物部分的分子量越高,共聚物部分的共聚单体含量越高,使得乙烯共聚物表现出高的冲击强度和优异的ESCR性能。 此外,乙烯共聚物基本上不含蜡,凝胶等等。 因此,乙烯共聚物及其共混组合物可有利地用于制造膜,纤维,泡沫或片材,包括吹塑薄膜,流延薄膜,层压薄膜,吹塑制品,注塑制品,管道,电缆用涂料, 等等。

    Supported catalyst component, supported catalyst, their preparation, and
addition polymerization process
    5.
    发明授权
    Supported catalyst component, supported catalyst, their preparation, and addition polymerization process 失效
    负载催化剂组分,负载催化剂,其制备和加成聚合方法

    公开(公告)号:US6043180A

    公开(公告)日:2000-03-28

    申请号:US909236

    申请日:1997-08-11

    摘要: A supported catalyst component prepared from a support material and an alumoxane, containing 15-40 weight percent of aluminum from the alumoxane (based on the total weight of the support material and alumoxane), said supported catalyst component being obtained by heating said support material and alumoxane under an inert atmosphere at a temperature of from about 85 to about 250.degree. C. for a period sufficient to fix said alumoxane to the support material, to provide a supported catalyst component; wherein not more than about 10 percent aluminum from said alumoxane and present in the supported catalyst component is extractable in a one-hour extraction with toluene at 90.degree. C. using 10 ml toluene per gram of supported catalyst component; and a transition metal compound, and a process for the preparation of the supported catalyst.

    摘要翻译: 由支撑材料和铝氧烷制备的负载型催化剂组分,所述铝氧烷包含来自铝氧烷的15-40重量%的铝(基于载体材料和铝氧烷的总重量),所述负载的催化剂组分通过加热所述载体材料和 铝氧烷在惰性气氛下在约85至约250℃的温度下持续足够的时间以将所述铝氧烷固定到载体材料上,以提供负载型催化剂组分; 其中不超过约10%的来自所述铝氧烷并存在于负载型催化剂组分中的铝在90℃下用甲苯萃取1小时,每克载体催化剂组分为10ml甲苯; 和过渡金属化合物,以及制备负载型催化剂的方法。

    Silica supported transition metal catalysts
    7.
    发明授权
    Silica supported transition metal catalysts 失效
    二氧化硅负载的过渡金属催化剂

    公开(公告)号:US5420090A

    公开(公告)日:1995-05-30

    申请号:US21705

    申请日:1993-02-24

    摘要: A transition metal containing catalyst useful for the polymerization of .alpha.-olefins is prepared by (A) forming in an inert atmosphere which excludes oxygen and moisture a slurry of (1) a porous inorganic oxide support material selected from the group consisting of silica, alumina, or a combination of silica and alumina, said support material containing not greater than about 5 millimoles of hydroxyl groups per gram of support material and a particle size not greater than about 10 microns and a surface area of from about 50 to about 800 m.sup.2 /g in an inert organic liquid medium; (B) mixing said slurry with (2) an alkoxide and stirring the resultant mixture at a temperature of from about -20.degree. C. to about 120.degree. C. for a time sufficient to saturate the surface of the support material: (C) mixing the product form (B) with (3) a titanium compound or a combination of a titanium compound and (4) a vanadium compound and stirring the resultant mixture at a temperature of from about -20.degree. C. to about 120.degree. C. for a time sufficient to allow complete reaction of the titanium compound and the vanadium compound with the organomagnesium moieties remaining on the solid support; (D) mixing the product from (C) with an inert organic solution of (5) a Group IIIA metal alkyl halide at a temperature of from about -20.degree. C. to about 120.degree. C. for a time sufficient to complete the reduction of the titanium and vanadium, if present, compounds to their final oxidation state.

    摘要翻译: 用于α-烯烃聚合的含过渡金属的催化剂通过以下步骤制备:(A)在惰性气氛中形成不含氧和水分的淤浆(1)多孔无机氧化物载体材料,其选自二氧化硅,氧化铝 ,或二氧化硅和氧化铝的组合,所述载体材料每克载体材料含有不大于约5毫摩尔羟基,粒度不大于约10微米,表面积为约50至约800平方米/ g在惰性有机液体介质中; (B)将所述浆料与(2)醇盐混合并在约-20℃至约120℃的温度下搅拌所得混合物足以使载体材料表面饱和的时间:(C) 将产品形式(B)与(3)钛化合物或钛化合物和(4)钒化合物的组合混合,并在约-20℃至约120℃的温度下搅拌所得混合物 足以允许钛化合物和钒化合物与残留在固体载体上的有机镁部分完全反应的时间; (D)将来自(C)的产物与(5)IIIA族金属烷基卤的惰性有机溶液在约-20℃至约120℃的温度下混合足以完成还原的时间 的钛和钒(如果存在)化合物达到其最终氧化态。

    Supported olefin polymerization catalyst
    8.
    发明授权
    Supported olefin polymerization catalyst 失效
    负载型烯烃聚合催化剂

    公开(公告)号:US5798314A

    公开(公告)日:1998-08-25

    申请号:US657572

    申请日:1996-06-04

    CPC分类号: C08F10/00 C08F110/02

    摘要: A supported catalyst component for an olefin polymerization catalyst consisting essentially of a solid particulate support and a magnesium halide; and an olefin polymerization catalyst consisting essentially of a solid particulate support and a magnesium halide, a Group 4 or 5 transition metal compound, and a Group 2 or 13 organometallic compound, and wherein a majority of particles of the solid particulate support are in the form of an agglomerate of subparticles.

    摘要翻译: 用于基本上由固体颗粒载体和卤化镁组成的烯烃聚合催化剂的负载催化剂组分; 和基本上由固体颗粒载体和卤化镁,第4或5族过渡金属化合物和第2或13族有机金属化合物组成的烯烃聚合催化剂,并且其中大部分固体颗粒载体的颗粒为 的颗粒聚集体。

    Silica supported transition metal catalyst
    9.
    发明授权
    Silica supported transition metal catalyst 失效
    二氧化硅负载过渡金属催化剂

    公开(公告)号:US5487938A

    公开(公告)日:1996-01-30

    申请号:US336947

    申请日:1994-11-10

    摘要: A transition metal containing catalyst useful for the polymerization of .alpha.-olefins is prepared by (A) forming in an inert atmosphere which excludes oxygen and moisture a slurry of (1) a porous inorganic oxide support material selected from the group consisting of silica, alumina, or a combination of silica and alumina, said support material containing not greater than about 5 millimoles of hydroxyl groups per gram of support material and a particle size not greater than about 10 microns and a surface area of from about 50 to about 800 m.sup.2 /g in an inert organic liquid medium; (B) mixing said slurry with (2) an alkoxide and stirring the resultant mixture at a temperature of from about -20.degree. C. to about 120.degree. C. for a time sufficient to saturate the surface of the support material; (C) mixing the product form (B) with (3) a titanium compound or a combination of a titanium compound and (4) a vanadium compound and stirring the resultant mixture at a temperature of from about -20.degree. C. to about 120.degree. C. for a time sufficient to allow complete reaction of the titanium compound and the vanadium compound with the organomagnesium moieties remaining on the solid support; (D) mixing the product from (C) with an inert organic solution of (5) a Group IIIA metal alkyl halide at a temperature of from about -20.degree. C. to about 120.degree. C. for a time sufficient to complete the reduction of the titanium and vanadium, if present, compounds to their final oxidation state. Ethylene/alpha-olefin copolymers which have greater than 17 percent high density fraction and a M.sub.w /M.sub.n ratio of less than about 3.6 are shown to be useful in making cast films which have good stretchability and good puncture resistance. Copolymers of the present invention having the specified properties are especially useful in making the films.

    摘要翻译: 用于α-烯烃聚合的含过渡金属的催化剂通过以下步骤制备:(A)在惰性气氛中形成不含氧和水分的淤浆(1)多孔无机氧化物载体材料,其选自二氧化硅,氧化铝 ,或二氧化硅和氧化铝的组合,所述载体材料每克载体材料含有不大于约5毫摩尔羟基,粒度不大于约10微米,表面积为约50至约800平方米/ g在惰性有机液体介质中; (B)将所述浆料与(2)醇盐混合并在约-20℃至约120℃的温度下搅拌所得混合物足以使载体材料表面饱和的时间; (C)将产品形式(B)与(3)钛化合物或钛化合物和(4)钒化合物的组合混合并在约-20℃至约120℃的温度下搅拌所得混合物 在足以允许钛化合物和钒化合物与残留在固体载体上的有机镁部分完全反应的时间; (D)将来自(C)的产物与(5)IIIA族金属烷基卤的惰性有机溶液在约-20℃至约120℃的温度下混合足以完成还原的时间 的钛和钒(如果存在)化合物达到其最终氧化态。 显示出具有大于17%的高密度分数和小于约3.6的Mw / Mn比的乙烯/α-烯烃共聚物可用于制备具有良好的拉伸性和良好的耐穿刺性的流延薄膜。 具有特定性质的本发明的共聚物在制备膜中特别有用。

    Supported biscyclopentadienyl metal complexes
    10.
    发明授权
    Supported biscyclopentadienyl metal complexes 失效
    负载双环戊二烯基金属配合物

    公开(公告)号:US5854362A

    公开(公告)日:1998-12-29

    申请号:US570261

    申请日:1995-12-11

    摘要: Metal complexes corresponding to the formula: ##STR1## wherein: L independently each occurrence is a delocalized, .pi.-bonded group that is bound to M, containing up to 50 nonhydrogen atoms; M is a metal of Group 3, 4 or the Lanthanide series of the Periodic Table of the Elements; Z is a covalently bound, divalent substituent of up to 50 non-hydrogen atoms having the formula, --(ER.sub.2).sub.m --, wherein E independently each occurrence is carbon, silicon or germanium, R independently each occurrence is selected from the group consisting of C.sub.1-20 hydrocarbyl, and C.sub.1-20 hydrocarbyloxy, with the proviso that in at least one occurrence R is C.sub.1-20 hydrocarbyloxy, and m is an integer from 1 to 3; X' is a neutral Lewis base ligand having up to 20 non-hydrogen atoms; X" independently each occurrence is a monovalent, anionic moiety selected from hydride, halo, hydrocarbyl, silyl, germyl, hydrocarbyloxy, amide, siloxy, halohydrocarbyl, halosilyl, silylhydrocarbyl, and aminohydrocarbyl having up to 20 non-hydrogen atoms, or two X" groups together form a divalent hydrocarbadiyl or neutral hydrocarbon group; n is a number from 0 to 3; and p is an integer from 0 to 2.

    摘要翻译: 对应于下式的金属络合物:其中:L独立地每次发生是与Mg结合的离域的π键合基团,其含有至多50个非氢原子; M是元素周期表第3,4族金属或镧系元素; Z是具有式 - (ER 2)m - 的多达50个非氢原子的共价结合的二价取代基,其中E独立地每次出现为碳,硅或锗,R各自独立地选自 C 1-20烃基和C 1-20烃氧基,条件是在至少一个出现中R是C 1-20烃氧基,m是1至3的整数; X'是具有至多20个非氢原子的中性路易斯碱配体; X“独立地是选自氢化物,卤素,烃基,甲硅烷基,甲硅烷基,烃氧基,酰胺,甲硅烷氧基,卤代烃基,卤代甲硅烷基,甲硅烷基烃基和具有至多20个非氢原子的氨基烃基的一价阴离子部分,或两个X “一起形成二价烃基或中性烃基; n是从0到3的数字; p为0〜2的整数。