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Expired Canadian patentCanada

Thermoplastic resin composition

CA 1308208 C · Owner: Sumitomo Chemical Co. Ltd. · Inventors: Abe, Hiroomi; Nishio, Taichi; Suzuki, Yasurou

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Abstract From the Canadian patent

A thermoplastic resin composition which comprises, 100 parts by weight of a composition (A) which comprises 5-95% by weight of a polyphenylene ether resin and 95-5% by weight of a polyamide, 5-50 parts by weight of a modified rubber-like material (B) wherein 5-100 parts by weight of an aromatic vinyl compound is graft-polymerized with 100 parts by weight of a rubber-like material, the grafting ratio of the aromatic vinyl compound being 50% by weight or more, and, 0.05-20 parts by weight of an .alpha. .beta.-unsaturated carboxylic acid or its derivative (C).

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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 September 29, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 29, 2009.
  • 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 10, 1988
GrantedSeptember 29, 1992
Term endedSeptember 29, 2009
Patent numberCA 1308208 C
Classification (IPC)C08L77/00 +2 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedJune 10, 1988Patent grantedSep 29, 1992Term endedSep 29, 2009

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