Electrodeposition coating composition
CA 1290721 C · Owner: Ishikura, Shinichi · Inventors: Kanda, Kazunori; Ishikura, Shinichi; Saito, Koichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electrodeposition coating composition comprising (a) a water-dispersible, electrically depositable binder resin and (b) water-insoluble, internally crosslinked polymer microparticles having a particle size from 0.01 to 2 microns said polymer microparticles bearing on their surfaces physically adhered or covalently bound thereto an amphoionic group of the formula:, wherein R represents an unsubstituted or substituted C1-C6 alkylene or phenylene, A is -COOH or -SO3H.
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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 October 15, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 15, 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.