One-can thermosetting resin compositions
CA 1298025 C · Owner: Miyabayashi, Shigeaki · Inventors: Miyabayashi, Shigeaki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
24205-721, One-Can Thermosetting Resin Compositions Abstract of the Disclosure, A one-can thermosetting resin composition comprises (a) a polyester polyol which is obtainable by allowing dicarboxylic acid to react with glycol and polyol having at least three OH groups, either one of the dicarboxylic acid and the glycol being an aliphatic one and the other being a cyclic one whose hydroxyl, value is 20-300, and (b) a blocked diisocyanate or a blocked NCO-terminated prepolymer of the diisocyanate. The diisocyanate is .alpha..alpha..alpha.',.alpha.'-tetramethyl-xylene diisocyanate or 4,4'-methylenebis- (cyclohexyl isocyanate). The resin composition gives coating films excellent in yellowing …
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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 March 24, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 24, 2009.
- 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.