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Expired Canadian patentCanada

Thermoplastic compositions and articles made therefrom

CA 1321850 C · Owner: Dis, A Partnership · Inventors: Cherry, David J.; Aleckner, John F. Jr.; Spencer, Lee R. Jr.

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Abstract From the Canadian patent

Thermoplastic compositions and articles made therefore which have a high receptivity toward automotive paints comprises components (a), (b), (c), (d) and (e), wherein, for example, 2% - 25% (a) is a copolymer of an ethylenically unsaturated carboxylic acid and ethylene 3% - 50% (b) is an elastomer comprising an ethylene alpha-olefin copolymer, 0% - 55% (c) is a crystalline homopolymer or copolymer of propylene, 5% - 50% (d) is an inorganic filler and, 10% - 35% (e) is polyethylene or a copolymer of ethylene and an alpha-olifin. Such articles, when injection molded exhibit flexural, moduli in the range of 30,000 to 400,000 psi and have excellent paintability, a broad range of stiffness …

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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 31, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 31, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 16, 1988
GrantedAugust 31, 1993
Term endedAugust 31, 2010
Patent numberCA 1321850 C
Classification (IPC)C08L23/26 +2 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedMarch 16, 1988Patent grantedAug 31, 1993Term endedAug 31, 2010

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