Process for preparing low molecular weight olefin (co)polymer and polymerizing catalyst used therefor

摘要

A process for preparing a low molecular weight olefin (co)polymer having a narrow molecular weight distribution with the high productivity, by polymerizing or copolymerizing an olefin in the presence of an olefin polymerizing catalyst comprising (A) a Group 4 transition metal compound represented bythe following general formula (1), and (B) at least one compound selected from (B-1) an organometallic compound, (B-2) an organoaluminum compound, (B-3) anorganoaluminum oxy-compound, and (B-4) a compound which reacts with the Group 4 transition metal compound (A) to form an ion pair, and   a novel Group 4 transition metal compound suitable as an olefin polymerizing catalyst component; (R: hydrogen, hydrocarbon group, or silicon-containing group, M: Ti, Zr or Hf, Y: Group 14 atom, Q: halogen, hydrocarbon group, neutral conjugated or non-conjugated diene, anionic ligand, or neutral ligand which can be coordinated with lone electron pair, n: 2 to 4, j : 1 to 4).