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Expired Canadian patentCanada

Resin composition

CA 1313916 C · Owner: Asai, Kuniaki · Inventors: Suzuki, Yasuro; Inoue, Masakazu; Asai, Kuniaki

CIPO record

Overview

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Abstract From the Canadian patent

The present invention is directed to a resin composition which comprises, (A) 60 to 99 % by weight of a polymer selected from a group consisting of a combination of 1 to 99 % by weight of a polyarylene ester and 99 to 1 % by weight of a polycarbonate, and a combination of 1 to 99 % by weight of a polyarylene ester and 99 to 1 % by weight of a polyalkylene terephthalate, and, (B) 40 to 1 % by weight of an ethylene copolymer consisting of 50 to 90 % by weight of ethylene 5 to 49 %, by weight of an .alpha..beta.-unsaturated carboxylic acid alkyl ester and 0.5 to 10 % by weight of maleic anhydride said resin composition having improved impact properties while retaining the excellent original …

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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 February 23, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 23, 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.
FiledAugust 28, 1987
GrantedFebruary 23, 1993
Term endedFebruary 23, 2010
Patent numberCA 1313916 C
Classification (IPC)C08L67/00 +2 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedAug 28, 1987Patent grantedFeb 23, 1993Term endedFeb 23, 2010

Sources & verification

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