Title:
POLYMERIZATION OF ALPHA-OLEFIN
Document Type and Number:
Japanese Patent JPH0423811
Kind Code:
A
Abstract:
PURPOSE:To efficiently obtain the subject polymer having excellent granular properties and high stereoregularity in a low cost by using a catalyst consisting of a reaction product of a specific organic Mg component with chlorosilane, a solid catalyst containing Ti compound and an aromatic acid ester, an organic Al compound, and a catalyst comprising an Si compound. CONSTITUTION:(A) A hydrocarbon-soluble organic Mg component expressed by formula I [M is metallic atom of I-III groups in the periodic table; R<1> to R<3> are 2-20C hydrocarbon; 0<=alpha; 0<=beta, 0<=p, 0<=q, 0 is 1-20C hydrocarbon; 0 is 2-10C hydrocarbon; D is halogen; 0<=m<4) into contact with an aromatic carboxylic acid ester in the presence of a chlorinated hydrocarbon solvent, (B) an organic Al compound expressed by formula IV (R<6> is 1-20C hydrocarbon) and (C) a catalyst composed of an alkoxysilane compound expressed by formula V (R<7> and R<8> are 1-20C hydrocarbon; 0<=s<4) to polymerize alpha-olefin.
Inventors:
FUJIWARA AKIO
WATANABE HARUMI
WATANABE HARUMI
Application Number:
JP12542290A
Publication Date:
January 28, 1992
Filing Date:
May 17, 1990
Export Citation:
Assignee:
ASAHI CHEMICAL IND
International Classes:
C08F10/00; C08F4/60; C08F4/658; (IPC1-7): C08F4/658; C08F10/00
Attorney, Agent or Firm:
Takeshi Shimizu (1 person outside)
Next Patent: JPH0423812