Title:
1-ブテンの重合方法
Document Type and Number:
Japanese Patent JP2004530029
Kind Code:
A
Abstract:
A process for polymerizing 1-butene comprising the step of contacting under polymerization conditions 1-butene and optionally from 0 to 20% by mol of an alpha olefin with a catalyst system obtainable by contacting a bridged metallocene compound of formula (I) wherein R1 and R2 are an hydrocarbon radical A is a carbon atom, a germanium atom or a silicon atom; m is 1, 2; M is a metal of group 4 of the Periodic Table of the Elements; X, is hydrogen, a halogen atom, or a group R, OR, OSO2CF3, OCOR, SR, NR2 or PR2, wherein the substituents R are hydrocarbon radical; L is a moiety of formula (IIa) or (IIb) wherein T is an oxygen (O) or sulphur (S) atom or a CH2 group; and R3 and R4 are hydrogen atoms or hydrocarbon radicals; one or more alumoxanes or compounds able to form an alkylmetallocene cation; and optionally an organo aluminum compound.
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Inventors:
Lesconi, Luigi
Application Number:
JP2003503674A
Publication Date:
September 30, 2004
Filing Date:
June 11, 2002
Export Citation:
Assignee:
BASELL POLYOLEFINE GMBH
International Classes:
C08F4/642; C08F4/645; C08F4/659; C08F4/6592; C08F10/08; C08F110/08; C08F210/08; (IPC1-7): C08F4/645; C08F10/08
Domestic Patent References:
| JPH08225605A | 1996-09-03 | |||
| JPH04268307A | 1992-09-24 | |||
| JP2000191854A | 2000-07-11 |
Attorney, Agent or Firm:
Shintaro Nogawa