Glass fiber-reinforced thermoplastic resin composition
CA 2110285 C · Owner: Jagawa, Yasutoshi · Inventors: Nishio, Takeyoshi; Hirai, Mikio; Ogura, Kiyoshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is directed to a glass fiber-reinforced thermoplastic resin composition comprising (A) 10 to 60 % by weight of a terpolymer which comprises N-phenylmaleimide styrene and, acrylonitrile, (B) 5 to 20 % by weight of a graft polymer which comprises at least one rubber selected from the group consisting of a conjugated diene rubber, an ethylene-propylene rubber and an ethylenebutylene rubber comprising ethylene and butylene to which rubber, styrene and acrylonitrile are graft polymerized (C) 10 to 80 % by, weight of a copolymer which comprises styrene and acrylonitrile and, (D) 5 to 35 % by weight of glass fiber wherein (a) the terpolymer has, an intrinsic viscosity of 0.20 …
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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
- Filed March 30, 1993 and granted November 12, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 30, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 30, 2015.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.