公开(公告)号：US06509288B1

公开(公告)日：2003-01-21

申请号：US09443896

申请日：1999-11-19

Applicant: Birgit Angelika Dorer ,  Christopher Sharp ,  Richard Henry Weatherhead

Inventor： Birgit Angelika Dorer ,  Christopher Sharp ,  Richard Henry Weatherhead

IPC: B01J320

CPC classification number: C08F10/00 ,  C08F4/65912 ,  C08F110/06 ,  C08F210/06 ,  Y10S526/943 ,  C08F4/65925 ,  C08F2500/02 ,  C08F2500/03 ,  C08F210/14

Abstract: Catalyst system suitable for preparing substantially terminally unsaturated atactic polymers or copolymers of &agr;-olefins having a molecular weight (Mn) in the range 200-500,000. The catalyst system includes a metallocene of the formula: [RmCpH(5-m)][RnCpH(5-n)]M(Z)Y wherein CpH is a cyclopentadienyl ligand, each R represents an alkyl or an aryl substituent on the CpH ligand or two R's may be joined together to form a ring, or the Rs in each CpH group when taken together represents an Si or C bridging group linking two CpH groups wherein the Si or C group may itself be substituted by hydrogen atoms or C1-C3 alkyl groups, M is a metal selected from hafnium, zirconium and titanium, Z is selected from a hydrogen atom, a trifluoromethane sulphonate, an alkyl and an aryl group, Y is selected from a, 1,3-diketonate and a &bgr;-ketoester arion, and each of m and n is same or different and has a value from 0 to 5.

Abstract translation: 适用于制备基本上末端不饱和的无规立构聚合物或分子量（Mn）范围为200-500,000的α-烯烃的共聚物的催化剂体系。 催化剂体系包括下式的茂金属：其中CpH是环戊二烯基配体，每个R代表CpH配体上的烷基或芳基取代基，或者两个R可以连接在一起形成环，或每个CpH基中的Rs 一起代表连接两个CpH基团的Si或C桥连基团，其中Si或C基团本身可以被氢原子或C 1 -C 3烷基取代，M是选自铪，锆和钛的金属，Z选自 氢原子，三氟甲磺酸盐，烷基和芳基，Y选自1,3-二酮酸酯和β-酮酯酰亚胺，m和n各自相同或不同，并且具有0至5的数值 。