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Expired Canadian patentCanada

Radiation-curable coating for thermoplastic substrates

CA 1331663 C · Owner: Kerr, Stuart Robert, Iii · Inventors: Kerr, Stuart Robert, Iii

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Abstract of the Disclosure, A novel radiation curable coating composition for thermoplastic substrates contains a polyfunctional acrylic monomer, a monodi- or, trifunctional acrylic monomer, a thermoplastic or elastomeric polymer and a photoinitiator. The coatings can be cured to hard, abrasion resistant coatings, yet retain a significant degree of residual unsaturation. The residual unsaturation and the thermoplastic or elastomeric polymer provide excellent adhesion between the coating and topcoats.

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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 August 23, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 23, 2011.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 22, 1988
GrantedAugust 23, 1994
Term endedAugust 23, 2011
Patent numberCA 1331663 C
Classification (IPC)C08J7/04 +2 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedDec 22, 1988Patent grantedAug 23, 1994Term endedAug 23, 2011

Sources & verification

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