NORBORNENE ADDITION COPOLYMER AND MOLDINGS

Title:

NORBORNENE ADDITION COPOLYMER AND MOLDINGS

Document Type and Number:

WIPO Patent Application WO/2006/104049

Kind Code:

A1

Abstract:

A norbornene addition copolymer obtained by addition copolymerization of (A) a norbornene monomer, (B) an aromatic vinyl compound and (C) an &agr -olefin having 2 to 20 carbon atoms, wherein the sum of the content of repeating units derived from the norbornene monomer (A) and that of repeating units derived from the aromatic vinyl compound (B) is 25 to 90 % by mole based on the whole of the repeating units constituting the copolymer and the content of repeating units derived from the aromatic vinyl compound (B) is 0.55 to 10 times (by mole) that of repeating units derived from the norbornene monomer (A); and moldings of the addition copolymer. The invention provides a norbornene addition copolymer having high transparency, a high refractive index, and a low intrinsic birefringence, and moldings of the copolymer.

Inventors:

IKEDA SHINTARO (JP)
NISHII KEI (JP)
TSUNOGAE YASUO (JP)

Application Number:

PCT/JP2006/305995

Publication Date:

October 05, 2006

Filing Date:

March 24, 2006

Export Citation:

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Assignee:

ZEON CORP (JP)
IKEDA SHINTARO (JP)
NISHII KEI (JP)
TSUNOGAE YASUO (JP)

International Classes:

C08F210/00; C08F212/02; C08F232/08

Domestic Patent References:

WO2001030870A1

2001-05-03

Foreign References:

JP2000230024A	2000-08-22
JPH10287713A	1998-10-27
JPH01185307A	1989-07-24

Other References: