Heat curable poly(arylene sulfide) compositions
CA 1061925 A · Owner: Phillips Petroleum Company · Inventors: Edmonds, James T. (Jr.); Hill, Harold W. (Jr.)
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Arylene sulfide copolymer compositions heat curable to products exhibiting improved high temperature properties are provided comprising a minor amount of alkyl-substituted monomeric cyclic repeating units and a major amount of monomeric cyclic repeating units free of alkyl substituents. The copolymers can be blended with arylene sulfide homopolymers free of alkyl substituents in the polymer chain to provide compositions exhibiting improved curing characteristics, as well as being combined with various fillers to provide coating compositions and laminates formed therefrom.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted September 4, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 4, 1996.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.