Coating composition having improved weathering resistance and recoating property and resinous composition to be used therein
CA 1284538 C · Owner: Tanabe, Hisaki · Inventors: Umemoto, Hirotoshi; Takeuchi, Yutaka; Tanabe, Hisaki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A resinous composition for coating use which is obtained by the reaction of base resin having both hydroxyl and carboxyl groups with an organopolysiloxane resin and with an alkylene imine compound in any successive order. The invention also provides a coating composition containing as resinous vehicle the abovesaid silicon and alkylene imine modified resin or a combination of silicon modified resin and polyalkylene imine. The present coating composition is characterized by having excellent recoatability and weathering 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 May 28, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 28, 2008.
- 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.