Patent ID: 9556285
Date: 2017-01-31
CPC Classifications: C08F

Claim:
1. A catalyst composition, comprising (i) component (a), (ii) component (b) or (d), and (iii) component (c), wherein: the component (a) is a lanthanoid-aluminum crosslinked complex having a structure represented by the following formula (1) or (2): wherein Ln represents one selected from the group consisting of lanthanoid elements, Sc, and Y; and R 1 to R 4 may be the same or different, and represent one selected from the group consisting of a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, an alkylsilyl group, an alkyloxy group, and a dialkylamide group; the component (b) is an alkylaluminum compound represented by a formula H the component (c) is one or more compounds selected from the group consisting of metal halide compounds and halosilyl compounds; and the component (d) is one or more compounds selected from the group consisting of aluminum oxy compounds represented by the following formula (3) or (4), borane compounds and borate compounds: wherein R