Resinous composition for a top coat
CA 1269480 C · Owner: Tanabe, Hisaki · Inventors: Tanabe, Hisaki; Umemoto, Hirotoshi; Togo, Masahiko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A resinous composition for a top coat comprising a polyester resin modified with a laetone, said polyester resin being characterized in that 10 to 80 mole % of acid component is an alicyclic polycarboxylic acid or anhydride thereof and, 10 to 100 mole % of the carboxyl groups capable of developing a resinous acid value is derived from a polycarboxylic acid which will show a potentiometric midpoint potential in a non aqueous potentiometric titration, and the state being incorporated into the resin of -350 mV or more. The coating composition based on said resinous composition is specifically useful as a top coat for automobile bodies in the two-tone-color coating.
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 May 22, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 22, 2007.
- 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.