Imide prepolymer composition comprising unsaturated bis imide, diamine and an inhibitor
CA 1338935 C · Owner: Tomoshige, Toru · Inventors: Tomoshige, Toru; Aoki, Hideya; Kan, Kojiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The imide prepolymer compositions of the present invention, which contain the unsaturated component (A) and diamine component (B) at the (A)/(B) molar ratio of 0.9-1.5 and 0.01-5.0% by weight, based on the sum of said components (A) and (B), of at least one compound selected from the group consisting of radical polymerization inhibitors carboxylic, acids and acid anhydrides. The imide prepolymer compositions of the present invention are tough and have excellent adhesive strength to glass cloths and metals and heat resistance.
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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 February 25, 1997. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 25, 2014.
- 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.