Thermoplastic resin composition
CA 2019883 A1 · Owner: Sumitomo Chemical Co. Ltd. · Inventors: Furuta, Motonobu; Imai, Akio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed herein is a thermoplastic resin composition which contains:, (a) polyphenylene ether or a composition containing polyphenylene ether, and, (b) (i) a modified propylene polymer formed by grafting a propylene polymer with a styrene-based monomer or a mixture of a styrene-based monomer and a monomer copolymerizable with the styrene-based monomer or, (ii) a composition containing said modified propylene polymer and a propylene polymer, and, (c) a rubbery substance which has in its molecule chain-A miscible with all or part of said component (a) and also has chain-B miscible with all or part of said component (b), chain-A and chain-B differing from each other in principal structural …
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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 June 26, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 26, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 26, 2012.
- 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.