&agr -OLEFIN/UNCONJUGATED CYCLIC POLYENE COPOLYMER, PROCESS FOR PRODUCING THE SAME, AND CROSSLINKABLE COMPOSITION CONTAINING THE COPOLYMER

Title:

&agr -OLEFIN/UNCONJUGATED CYCLIC POLYENE COPOLYMER, PROCESS FOR PRODUCING THE SAME, AND CROSSLINKABLE COMPOSITION CONTAINING THE COPOLYMER

Document Type and Number:

WIPO Patent Application WO/2006/121086

Kind Code:

A1

Abstract:

An &agr -olefin/unconjugated cyclic polyene copolymer (A) which comprises structural units (I) derived from an &agr -olefin and structural units (II) derived from a cycloolefin containing a vinyl group, has a molecular-weight distribution (Mw/Mn) of 2.7 or lower, and is noncrystalline or has low crystallinity with a quantity of heat of crystal fusion (&Dgr H) less than 90 kJ/kg. The copolymer is efficiently produced with a specific transition metal catalyst having a ligand having a phenoxyimine skeleton. The copolymer has a narrower molecular-weight distribution than existing copolymers and has a high vinyl group content. Because of this, the copolymer can give a crosslinked object having excellent tensile properties. When the copolymer is used as a plasticizer for a polymer, e.g., a rubber, the resultant composition shows excellent processability and gives a crosslinked object excellent in mechanical strength, rubber elasticity, etc. Converting vinyl group parts contained in the copolymer to polar groups gives polyolefin materials having various functions imparted thereto.

Inventors:

MATSUI SHIGEKAZU (JP)
MATSUURA SADAHIKO (JP)
MAKIO HARUYUKI (JP)
ISHII SEIICHI (JP)
TERAO HIROSHI (JP)
MURAKAMI HIDETATSU (JP)
HAKUTA TAKASHI (JP)
FUJITA TERUNORI (JP)

Application Number:

PCT/JP2006/309417

Publication Date:

November 16, 2006

Filing Date:

May 10, 2006

Export Citation:

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Assignee:

MITSUI CHEMICALS INC (JP)
MATSUI SHIGEKAZU (JP)
MATSUURA SADAHIKO (JP)
MAKIO HARUYUKI (JP)
ISHII SEIICHI (JP)
TERAO HIROSHI (JP)
MURAKAMI HIDETATSU (JP)
HAKUTA TAKASHI (JP)
FUJITA TERUNORI (JP)

International Classes:

C08F210/00; C08F4/60; C08F236/20; C08K5/54; C08L23/02; C09D123/02; C09J123/02; C09K3/10

Domestic Patent References:

WO2004065435A1	2004-08-05
WO2001098407A1	2001-12-27
WO2001098407A1	2001-12-27
WO2004065435A1	2004-08-05

Foreign References:

JPH09241326A	1997-09-16
JPS6454010A	1989-03-01
JPH0971616A	1997-03-18
JPS6454010A	1989-03-01
JPH0782323A	1995-03-28
EP0874005A1	1998-10-28
EP1203778A1	2002-05-08

Other References: