Patent ID: 11919980
Assignee: TOTAL RESEARCH & TECHNOLOGY FELUY
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 0:
1. A catalyst composition comprising:
a catalyst component A comprising a bridged metallocene compound with two tetrahydroindenyl groups, each group being unsubstituted or substituted, wherein catalyst component A comprises a bridged metallocene catalyst of formula (I), wherein, each of R1, R2, R3 and R4, are independently selected from the group consisting of alkyl, alkenyl, cycloalkyl, cycloalkenyl, cycloalkenylalkyl, aryl, alkoxy, alkylaryl, arylalkyl, halogen, Si(R10)3, and heteroalkyl; wherein each R10 is independently selected from the group consisting of hydrogen, alkyl, and alkenyl; and m, n, p, q are each independently an integer selected from 0, 1, 2, 3, or 4;
L1 is —[CR8R9]h—, SiR8R9, GeR8R9, or BR8; wherein h is an integer selected from 1, 2, or 3; each of R8, and R9 are independently selected from the group consisting of hydrogen, alkyl, alkenyl, cycloalkyl, cycloalkenyl, cycloalkenylalkyl, aryl, aminoalkyl, and arylalkyl; or R8 and R9 together with the atom to which they are attached form a cycloalkyl, cycloalkenyl or heterocyclyl;
M1 is a transition metal selected from the group consisting of zirconium, titanium, hafnium, and vanadium; and
Q1 and Q2 are each independently selected from the group consisting of halogen, alkyl, —N(R11)2 , alkoxy, cycloalkoxy, aralkoxy, cycloalkyl, aryl, alkylaryl, aralkyl, and heteroalkyl; wherein R11 is hydrogen or alkyl;
a catalyst component B comprising a bridged metallocene compound with a substituted or unsubstituted cyclopentadienyl group and a substituted or unsubstituted fluorenyl group;
an optional activator; an optional support; and
an optional co-catalyst;
wherein a weight ratio of catalyst component A to catalyst component B is from 1:4 to 4:1.