CATALYST FOR POLYOLEFIN PRODUCTION AND PROCESS FOR PRODUCING POLYOLEFIN

Title:

CATALYST FOR POLYOLEFIN PRODUCTION AND PROCESS FOR PRODUCING POLYOLEFIN

Document Type and Number:

WIPO Patent Application WO/1997/040075

Kind Code:

A1

Abstract:

A catalyst component for polyolefing production, comprising a metallocene compound of general formula (1) (the characters used in the formula having the meaning as set forth in the text of Description); a catalyst for polyolefin production comprising the component; and a process for producing polyolefins wherein the catalyst is used. The polymerization of an 'alpha'-olefin, especially, propylene in the presence of the catalyst comprising the novel metallocene compound of the invention as a component thereof enables production of an isotactic polyolefin having its stereoregularity and positional regularity highly controlled, especially, an isotactic polypropylene of high positional regularity whose production has been difficult with the use of the conventional metallocen catalysts.

Inventors:

OKUMURA YOSHIKUNI (JP)
SAKURAGI TSUTOMU (JP)
ONO MICHIO (JP)
INAZAWA SHINTARO (JP)

Application Number:

PCT/JP1997/001387

Publication Date:

October 30, 1997

Filing Date:

April 22, 1997

Export Citation:

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Assignee:

JAPAN POLYOLEFINS CO LTD (JP)
OKUMURA YOSHIKUNI (JP)
SAKURAGI TSUTOMU (JP)
ONO MICHIO (JP)
INAZAWA SHINTARO (JP)

International Classes:

C08F4/64; C08F4/642; C08F10/00; C08F4/659; C08F4/6592; C08F110/06; (IPC1-7): C08F4/642; C08F10/06; C08F10/08; C08F10/14

Foreign References:

JPH08333379A	1996-12-17
JPH0892317A	1996-04-09
JPH0625343A	1994-02-01

Other References: