Modified polyester resin composition
CA 1319221 C · Owner: Inoue, Koichi · Inventors: Inoue, Koichi; Tanabe, Hisaki; Umemoto, Hirotoshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A modified polyester resin for coating use, comprising, a polyester resin modified with 5 to 30% by weight of the, total solid content, of isononanoic acid and with 5 to 30% by weight, of the total solid content, of a cyclic ester represented by the formula:, wherein R represents an alkylene group having 4 to 10 carbon atoms, the resin having a hydroxyl value of 70 to 300. The present resin composition is specifically useful as a resinous vehicle in a top coat composition for plastic and other substrates.
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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 June 15, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 15, 2010.
- 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.