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Expired Canadian patentCanada

Thermoplastic resin composition and method for preparing the same

CA 1332085 C · Owner: Nippon Petrochemicals Co. Ltd. · Inventors: Sakazume, Suehiro; Orikasa, Yuichi

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Overview

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Abstract From the Canadian patent

A novel thermoplastic resin composition is here disclosed which contains (I) 99 to 1% by weight of a polysulfone or polyether sulfone; (II) 1 to 99% by weight of an acrylonitrile-butadiene-styrene resin; (III) 0.1 to 100 parts by weight, based on 100 parts by weight of the aforesaid resins (I) + (II), of a multi-phase structure thermoplastic resin which is composed of 5 to 95% by weight of an epoxy group-containing olefin copolymer and 95 to 5% by weight of a vinyl polymer or copolymer obtained from at least one kind of vinyl monomer, either of the polymer or copolymer being in the state of a dispersion phase having a particle diameter of 0.001 to 10 µm; and (IV) 0 to 150 parts of an …

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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 20, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 20, 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.
FiledSeptember 26, 1989
GrantedSeptember 20, 1994
Term endedSeptember 20, 2011
Patent numberCA 1332085 C
Classification (IPC)C08L81/06 +2 more

Timeline

Timeline From CIPO dates

19901993199619992002200520082011Application filedSep 26, 1989Patent grantedSep 20, 1994Term endedSep 20, 2011

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