Polyethylene blends
    62.
    发明授权
    Polyethylene blends 失效
    聚乙烯共混物

    公开(公告)号:US5319029A

    公开(公告)日:1994-06-07

    申请号:US48631

    申请日:1993-04-16

    摘要: A composition of matter comprising: (a) 5 to 40 weight percent inclusive of a low molecular weight ethylene resin made using a titanium catalyst system said resin having a density greater than 0.955 grams per cubic centimeter, a melt index greater than 25 grams per 10 minutes, and a heterogeneity index between 2 and 8 inclusive; and (b) 60 to 95 weight percent inclusive of a high molecular weight ethylene copolymer resin made using a chromium catalyst system said resin having a density of at least 0.93 grams per cubic centimeter, a high load melt index between 1.5 and 15 grams per 10 minutes, and a heterogeneity index between 6 and 100 inclusive; wherein said composition of matter has a melt index greater than 0.05 grams per 10 minutes.

    摘要翻译: 一种物质组合物,其包含:(a)5至40重量%,包括使用钛催化剂体系制备的低分子量乙烯树脂,所述树脂的密度大于0.955克/立方厘米,熔体指数大于25克/ 10 分钟,异常指数在2和8之间; 和(b)60至95重量%,包括使用铬催化剂体系制备的高分子量乙烯共聚物树脂,所述树脂的密度至少为0.93克/立方厘米,高负荷熔体指数为1.5至15克/ 10 分钟,6和100之间的异质性指数; 其中所述物质组合物的熔体指数大于0.05克/ 10分钟。

    Stannoxy-substituted metallocene catalysts for olefin and acetylene polymerization
    69.
    发明授权
    Stannoxy-substituted metallocene catalysts for olefin and acetylene polymerization 有权
    用于烯烃和乙炔聚合的烷氧基取代的茂金属催化剂

    公开(公告)号:US06982306B2

    公开(公告)日:2006-01-03

    申请号:US10723350

    申请日:2003-11-26

    IPC分类号: C08F4/58

    摘要: This invention relates to the field of olefin polymerization catalyst compositions, and methods for the polymerization and copolymerization of olefins, including polymerization methods using a catalyst composition. One aspect of this invention is the formation and use of a catalyst composition comprising a stannoxy-substituted half-sandwich metallocene and an activator for olefin polymerization processes. For example, this invention encompasses the preparation of (η5-C5H5)Ti(OSnPh3)Cl2, its contact with an activator, for example, zinc-impregnated chlorided alumina, to form a catalyst composition, and the use of this catalyst composition for polymerizing olefins or acetylenes.

    摘要翻译: 本发明涉及烯烃聚合催化剂组合物领域,以及烯烃聚合和共聚方法,包括使用催化剂组合物的聚合方法。 本发明的一个方面是形成和使用包含苯氧基取代的半夹心金属茂和用于烯烃聚合方法的活化剂的催化剂组合物。 例如,本发明包括制备(η5 -C 5 H 5 H 5)Ti(OSnPh 3 N) )Cl 2,其与活化剂例如浸渍锌的氧化铝接触以形成催化剂组合物,以及使用该催化剂组合物来聚合烯烃或乙炔。

    Polyethylene blends
    70.
    发明授权
    Polyethylene blends 失效
    聚乙烯共混物

    公开(公告)号:US5306775A

    公开(公告)日:1994-04-26

    申请号:US48628

    申请日:1993-04-16

    摘要: A composition of matter comprising: (a) 30 to 70 weight percent inclusive of a low molecular weight ethylene resin made using a chromium catalyst system said resin having a density of at least 0.955 grams per cubic centimeter, a melt index from 25 to 400 grams per 10 minutes, and a heterogeneity index between 2 and 35 inclusive; and (b) 30 to 70 weight percent inclusive of a high molecular weight ethylene copolymer resin made using a titanium catalyst system said resin having a density not greater than 0.955 grams per cubic centimeter, a high load melt index between 0.1 and 50 grams per 10 minutes inclusive, and a heterogeneity index between 2 and 10 inclusive; wherein said composition of matter has a melt index greater than 0.05 grams per 10 minutes.

    摘要翻译: 一种物质组合物,包括:(a)30-70%(重量),包括使用铬催化剂体系制备的低分子量乙烯树脂,所述树脂的密度至少为0.955克/立方厘米,熔体指数为25-400克 每10分钟,异质指数在2和35之间; 和(b)30-70重量%,包括使用钛催化剂体系制备的高分子量乙烯共聚物树脂,所述树脂的密度不大于0.955克/立方厘米,高负荷熔体指数为0.1-50克/ 10 分钟,包括2和10的异质性指数; 其中所述物质组合物的熔体指数大于0.05克/ 10分钟。