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Expired Canadian patentCanada

Automotive paint compositions containing pearlescent pigments and dyes

CA 1279425 C · Owner: Basf Corporation · Inventors: Panush, Sol

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Abstract From the Canadian patent

of Disclosure, Automotive Paint Compositions Containing Pearlescent Pigments and Dyes, A transparent topcoat coating compositions is described comprising a thermosetting resin material containing a pigment composition and a soluble dye. The pigment composition contains about 40 weight percent to about 80 weight percent of iron oxide encapsulated mica particles. The composition also contains 0.5 weight percent to about 82.5 weight percent of a soluble 1:2 chrome or 1:2 cobalt metal organic complex dye. When used in a multi-coat coating process as a base coat overcoated with a transparent topcoat, an article is produced having improved pearlescent color effects, improved depth and clarity, …

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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 January 22, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 22, 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.
FiledAugust 15, 1986
GrantedJanuary 22, 1991
Term endedJanuary 22, 2008
Patent numberCA 1279425 C
Classification (IPC)C09D5/36 +1 more

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedAug 15, 1986Patent grantedJan 22, 1991Term endedJan 22, 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.