Process for preparing olefin polymer, and ethylenic polymer

摘要

PCT No. PCT/JP94/02251 Sec. 371 Date Jun. 28, 1996 Sec. 102(e) Date Jun. 28, 1996 PCT Filed Dec. 27, 1994 PCT Pub. No. WO95/18158 PCT Pub. Date Jul. 6, 1995An olefin polymer is prepared by homopolymerizing an olefin or copolymerizing two different olefins or an olefin and another polymerizable unsaturated compound in the presence of a polymerization catalyst containing (A) a transition metal compound represented by the formula (I):CpMLx-1(I)wherein M is a metallic element of Groups 3 to 10 of the Periodic Table or a metallic element of the lanthanide series; Cp is a cyclic compound group having a cyclopentadienyl skeleton of 5 to 30 carbon atoms; L is R', OR', SR', SO3R'N'R'R'', PR'R'', wherein R' and R'' are each a C1-20 hydrocarbon group or a silyl group, NO2, a halogen atom, a 1-pyrrolyl group or a 1-pyrrolidinyl group, with the proviso that at least one of the L groups is OR', SR', N'R'R'' or PR'R'', wherein R' and R'' are each a C1-20 hydrocarbon group or a silyl group; and x is a valence number of M, and when a plurality of L's are present, the respective L's may be the same or different, and (B) an aluminoxane, wherein the molar ratio of the component (B)/component (A) (in terms of the metallic atoms) is in the range of 2 to 500.