Patent ID: 6891004

Claim:
A transition metal catalyst component for polymerization, represented by formula (1): wherein, in the formula, A is an unsubstituted or substituted benzindenyl group having the following formula (5), (6) or (7): wherein in the above formulae (5) to (7), each of R1a, R1b, R2a, R2b, R3a and R3b which are independent of each other, is hydrogen, a C 1-20 alkyl group, a C 6-10 aryl group or a C 7-20 alkylaryl group, or each group optionally contains from one to three halogen atoms, silicon atoms, phosphorus atoms, oxygen atoms, boron atoms, nitrogen atoms, sulfur atoms and/or selenium atoms, or each group is optionally substituted by an OSiR 3 group, a SiR 3 group, an NR 2 group, an OH group, an OR group or a PR 2 group, wherein each R represents a C 1-10 hydrocarbon group, wherein the plurality of R1a, R1b, R2a, R3b, R3a and R3b groups, may be the same or different from one another, and adjacent such substituents may together form a single or plural 5- to 8-membered aromatic or aliphatic rings; B is the same unsubstituted or substituted benzindenyl group as described above, or an unsubstituted or substituted cyclopentadienyl group, an unsubstituted or substituted indenyl group, or an unsubstituted or substituted fluorenyl group, which has the following formula (8), (9) or (10): wherein in the above formulae (8) to (10), each of R4a, R4b, R5 and R6 which are independent of each other, is hydrogen, a C 1-20 alkyl group, a C 6-10 aryl group or a C 7-20 alkylaryl group, or each group optionally contains from one to three halogen atoms, silicon atoms, phosphorus atoms, oxygen atoms, boron atoms, nitrogen atoms, sulfur atoms and/or selenium atoms, or each group optionally is substituted by an OSiR 3 group, a SiR 3 group, an NR 2 group, an OH group, an OR group or a PR 2 group, wherein each R represents a C 1-10 hydrocarbon group, and wherein the plurality of R4a, R4b, R5 and R6 groups, may be the same or different from one another; when both A and B are unsubstituted or substituted benzindenyl groups, both may be the same or different; Y is a substituted boron group having bonds to A and B and having hydrogen or a C 1-20 hydrocarbon group, as a substituent, and the substituent in Y may contain from one to three nitrogen, boron, silicon, phosphorus, selenium, oxygen or sulfur atoms or may have a cyclic structure; X is hydrogen, halogen, a C 1-15 alkyl group, a C 3-15 alkenyl group, a C 6-10 aryl group, a C 8-12 alkylaryl group, a silyl group having a C 1-4 hydrocarbon substituent, a C 1-10 alkoxy group, or an amide or amino group having a C 1-22 hydrocarbon substituent, n is an integer of 0, 1 or 2, and when X is two, each X is the same or different; and M is zirconium, hafnium or titanium.