Composite resin particles, its preparation and resinous composition for coating use containing and same
CA 1269470 C · Owner: Ishikura, Shinichi · Inventors: Ishikura, Shinichi; Muramoto, Hisaichi; Ishii, Keizou
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Composite resin particles each of which comprises a granular body portion of crosslinked polymer having a mean diameter of 0.01 to 10µ and a number of linear polymer chains a part of, the respective chain penetrating into the inside of the granular body portion and the remaining part extending outwardly therefrom. A dispersion of said composite resin particles in an organic solvent is useful as a resinous vehicle for coating compositions.
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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 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.