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Title:
HYDROGENATED NORBORNENE-BASE COPOLYMER AND ITS USE
Document Type and Number:
Japanese Patent JP3387533
Kind Code:
B2
Abstract:

PURPOSE: To provide a resin excellent in heat resistance, transparency, photo- deterioration resistance, low birefringence, electrical insulation, high-frequency properties, electrical insulation stability, low dissolution of organic materials and mechanical strength, etc., and widely useful, e.g. for an optical material, an electrical insulating material, a hardware for processing an electronic part and a medical hardware.
CONSTITUTION: The hydrogenated norbornene-vinylated unsaturated six- membered cyclic hydrocarbon-based addition type copolymer exhibiting 0.1 to 10dl/g intrinsic viscosity [η]in toluene at 25°C is obtained by saturating unsaturated bonds in the unsaturated six-membered cyclic structure of a copolymer composed of 5 to 95wt.% norbornene-based monomer such as norbornene and 95 to 5 wt.% styrene-based monomer such as styrene or a terpene-based monomer such as l-limonene through hydrogenation.


Inventors:
Masakazu Hashimoto
Toshihide Murakami
Teiji Obara
Io Natsume
Application Number:
JP31418292A
Publication Date:
March 17, 2003
Filing Date:
October 29, 1992
Export Citation:
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Assignee:
Nippon Zeon Co., Ltd.
International Classes:
C08F8/04; C08F12/00; C08F32/00; C08F212/04; C08F232/08; G02B1/04; H01B3/44; (IPC1-7): C08F8/04; C08F232/08; G02B1/04; H01B3/44
Domestic Patent References:
JP480220A