C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
402/296
C08F 22/00 (2006.01) C08G 61/08 (2006.01)
Patent
CA 1042136
Abstract of the Disclosure Polymers or copolymers of acid anhydride type norbornene de- rivatives and a method of preparing the same, said polymers or copolymers being formed with a reduced viscosity of 0.1 to 20 by ring-opening polymerization of acid anhydride type norbornene de- rivatives having at least one carboxylic anhydride group or a mixture of said norbornene derivatives and cycloolefins. These polymers have prominent properties such as heat resistance, tensile strength and hardness. Also, the polymers can be molded into a variety of shaped articles by compression molding, extrusion molding, injection molding, blow molding and casting which are generally applied in manufacturing resin products. Therefore, the polymers can be used in wide fields by being molded into various shapes, for example, as containers like bottles, film, packing material, mechanical parts and parts of electrical appliances.
209850
Kobayashi Shoichi
Tanaka Yasuzi
Ueshima Takashi
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