Polyphenylene ether resin composition
CA 1302603 C · Owner: Yanagase, Akira · Inventors: Yamamoto, Naoki; Yanagase, Akira; Sasaki, Isao
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A polyphenylene ether resin composition comprising, (A) a polyphenylene ether resin (B) a polystyrene resin, and, (C) a graft copolymer prepared by graftpolymerizing one or more vinyl monomers onto a compound rubber having an average particle diameter of 0.08 to 0.6 µm and a structure wherein 10 to 90% by weight of a polyorganosiloxane rubber component and 90 to 10% by weight of a polyalkyl (meth)acrylate rubber component are tangled with each other so as not to separate the, total amount of the polyorganosiloxane rubber component and the polyalkyl (meth)acrylate rubber component being 100% by weight of the compound rubber. This resin composition provides molded products superior in impact …
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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 June 2, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 2, 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.
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.