Process for the preparation of ethylene copolymers
    6.
    发明授权
    Process for the preparation of ethylene copolymers 有权
    制备乙烯共聚物的方法

    公开(公告)号:US08742042B2

    公开(公告)日:2014-06-03

    申请号:US12226389

    申请日:2007-04-06

    摘要: A polymerization process comprising contacting under polymerization conditions ethylene and at least one alpha olefin of formula CH2=CHA wherein A is a C2-C20 alkyl radical to obtain a copolymer containing from 95% by mol to 50% by mol of ethylene derived units in the presence of a catalyst system obtainable by contacting: b) at least a metallocene compound of formula (I) b) alumoxane or a compound capable of forming an alkyl metallocene cation; and optionally c) an organo aluminum compound; wherein the groups R1-R4, L, M and W are described in the text.

    摘要翻译: 聚合方法,包括在聚合条件下使乙烯和至少一种式CH 2 = CHA的α-烯烃接触,其中A是C 2 -C 20烷基,以获得含有95摩尔%至50摩尔%的乙烯衍生单元的共聚物 存在可通过以下方式获得的催化剂体系:b)至少一种式(I)的茂金属化合物b)铝氧烷或能够形成烷基金属茂阳离子的化合物; 和任选地c)有机铝化合物; 其中在文中描述了基团R1-R4,L,M和W。

    Process for the preparation of ethylene propylene copolymers
    8.
    发明授权
    Process for the preparation of ethylene propylene copolymers 有权
    制备乙烯丙烯共聚物的方法

    公开(公告)号:US08785575B2

    公开(公告)日:2014-07-22

    申请号:US12226385

    申请日:2007-04-06

    摘要: A polymerization process comprising contacting under polymerization conditions ethylene and at least propylene to obtain a copolymer containing from 96% by mol to 71% by mol of ethylene derived units, in the presence of a catalyst system obtainable by contacting: b) at least a metallocene compound of formula (I), b) alumoxane or a compound capable of forming an alkyl metallocene cation; and optionally c) an organo aluminum compound; wherein the groups R1-R4, L, M and W are described in the text.

    摘要翻译: 一种聚合方法,包括在聚合条件下使乙烯和至少丙烯接触,以获得含有衍生自乙烯的单元的96摩尔%至71摩尔%的乙烯衍生单元的共聚物,所述催化剂体系可以通过以下方式获得:b)至少一种茂金属 式(I)化合物,b)铝氧烷或能够形成烷基金属茂阳离子的化合物; 和任选地c)有机铝化合物; 其中在文中描述了基团R1-R4,L,M和W。