CYCLOOLEFIN COPOLYMER - SEKISUI CHEMICAL CO LTD

Title:

CYCLOOLEFIN COPOLYMER

Document Type and Number:

WIPO Patent Application WO/2007/060723

Kind Code:

A1

Abstract:

A novel cycloolefin copolymer that can be employed in the production of molding with fewer defects, for example, fewer gel particles (fish eyes). There is provided a cycloolefin copolymer comprising 80 to 20 mol% of repeating units derived from an α-olefin monomer and 20 to 80 mol% of repeating units derived from at least one cycloolefin monomer selected from the group consisting of monomer of the general formula (I), monomer of the general formula (II), monomer of the general formula (III), monomer of the general formula (IV) and monomer of the general formula (V), wherein with respect to the repeating units derived from cycloolefin monomer, the proportion thereof being present in the form of dimer (Rd) is 50 mol% or below and the proportion thereof being present in the form of trimer (Rt) 5 mol% or above.

Inventors:

HATKE WILFRIED (DE)
BRUCH MATTHIAS (DE)
SCHAUWIENOLD ANNE-MEIKE (DE)
STEHLING UDO MANFRED (DE)
KANAI HIROYUKI (JP)
SERIZAWA HAJIME (JP)
HIRAIKE HIROSHI (JP)
SAWADA TAKAHIKO (JP)
YAGI KAZUNARI (JP)
HIGUCHI ISAO (JP)
TOYOSHIMA KATSUNORI (JP)
MORITA TAKEHARU (JP)

Application Number:

PCT/JP2005/021593

Publication Date:

May 31, 2007

Filing Date:

November 24, 2005

Export Citation:

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Assignee:

SEKISUI CHEMICAL CO LTD (JP)
HATKE WILFRIED (DE)
BRUCH MATTHIAS (DE)
SCHAUWIENOLD ANNE-MEIKE (DE)
STEHLING UDO MANFRED (DE)
KANAI HIROYUKI (JP)
SERIZAWA HAJIME (JP)
HIRAIKE HIROSHI (JP)
SAWADA TAKAHIKO (JP)
YAGI KAZUNARI (JP)
HIGUCHI ISAO (JP)
TOYOSHIMA KATSUNORI (JP)
MORITA TAKEHARU (JP)

International Classes:

C08F232/08; C08K5/098; C08K5/101; C08K5/20; C08L45/00

Domestic Patent References:

WO2000046254A1

2000-08-10

Foreign References:

JP2001114837A	2001-04-24
JPH0812712A	1996-01-16

Other References: