The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 09, 1976
Filed:
Apr. 22, 1975
Shiro Kokuryo, Yokohama, JA;
Hiroyasu Kawahara, Kawasaki, JA;
Hiroshi Akiyama, Kawasaki, JA;
Takashi Ueshima, Yokohama, JA;
Chutatsu Tsuge, Tokyo, JA;
Showa Denko Kabushiki Kaisha, Tokyo, JA;
Abstract
High stability composition of ring-opening polymerization product which is formed of (A) 100 parts by weight of at least one ring-opening polymerization product selected from the group consisting of (a) ring-opening polymerization homopolymers of norbornene derivatives containing at least one cyano group, (b) ring-opening polymerization homopolymers of norbornene derivatives containing at least one ester group, (c) ring-opening polymerization homopolymers of norbornene derivatives containing at least one ether group, (d) ring-opening polymerization homopolymers containing at least one N-substituted cyclic imide group, (e) ring-opening polymerization interpolymers of the above-mentioned types of norbornene derivatives, and (f) other ring-opening polymerization copolymers obtained by the ring-opening copolymerization of said various types of norbornene derivatives and 50 mol% at most of other unsaturated cyclic compounds; and (B) 0.01 to 10.0 parts by weight of specified phenolic compounds.