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Expired Canadian patentCanada

Process for coating an electrically conductive substrate and an aqueous coating composition based on a cationic binder

CA 1283495 C · Owner: Maze, Etienne · Inventors: Guioth Chantal; Trescol, Jean Jacqeus; Maze, Etienne

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Abstract From the Canadian patent

A process is provided for coating an electrically conductive substrate with an aqueous coating composition containing a cationic binder wherein the binder is obtained by polymerization of 100 parts by weight of a specified monomer mixture in the presence of 0,5 to 25 parts by weight of a polyurethane having 2-5 acryloyl groups or methacryloyl groups a molecular weight of, 400-7000 and a molecular weight per (meth)acryloyl group of at least 200. The invention also pertains to the aqueous composition as such.

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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 April 23, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 23, 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.
FiledJuly 4, 1986
GrantedApril 23, 1991
Term endedApril 23, 2008
Patent numberCA 1283495 C
Classification (IPC)H01B3/30 +2 more

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedJuly 4, 1986Patent grantedApril 23, 1991Term endedApril 23, 2008

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.