Catalysis of amine curable polymers by high dielectric constant compounds
CA 1065995 A · Owner: Firestone Tire And Rubber Company (The) · Inventors: Schonfeld, Steven E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A catalyst cured polymer is obtained by adding by weight, 100 parts of an amine curable polymer or prepolymer selected from the group consisting of (a) urethanes containing free isocyanate groups, epoxy resins, polymers containing acid halide and haloformate groups, and polymers containing anhydride groups which on reaction with diamines yield amide-acide, linkages, or (b) halogen containing hydrocarbon polymers chlorosulfonated polymers and organo-polysiloxanes; an amine containing curing agent in an amount of 0.8 to 1.2 equivalents based upon the free active groups of the amine curable polymer or prepolymer of group (a), or of 0.0005 to about 0.05 equivalents based upon the active groups …
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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 November 6, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 6, 1996.
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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.