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Expired Canadian patentCanada

Abrasion resistant coating for foamed plastic substrates

CA 1165032 A · Owner: Owens-Illinois, Inc. · Inventors: Santiago, Edgardo

CIPO record

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Abstract From the Canadian patent

A protective coating composition is applied to the decorated and/or printed surface of a foamed plastic substrate to provide abrasion resistance, high gloss and lubricity. Preferably, the composition is comprised of a water-based mixture of polyurethane resin and emulsified polyethylene resin the latter being emulsified with an ionic or non-ionic emulsifier. The composition is especially useful for application over the exterior of foamed plastic surfaces which have been decorated and/or printed with printing inks prior to fabrication of the material into plastic articles.

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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 3, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 3, 2001.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 14, 1979
GrantedApril 3, 1984
Term endedApril 3, 2001
Patent numberCA 1165032 A
Classification (IPC)B32B3/02 +2 more

Timeline

Timeline From CIPO dates

19801983198619891992199519982001Application filedJune 14, 1979Patent grantedApril 3, 1984Term endedApril 3, 2001

Sources & verification

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