Thermoplastic resin composition
CA 2040540 A1 · Owner: Saito, Kouichi · Inventors: Yonaiyama, Rikio; Yoshimitsu, Minoru; Saito, Kouichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A thermoplastic resin composition for molding having, an improved compatibility of polyolefins with aromatic vinyl polymers, superior strength at welded part stiff-, ness, dimensional stability and chemical resistance and, a fiber-reinforced thermoplastic resin composition having inhibited a warpage deformation at the time of molding besides the above superior physical properties are provided, the former composition being obtained by meltkneading the following components (A) and (B) each in, a specified proportion:, (A) a modified polyolefin obtained by graft-reacting a polyolefin with an unsaturated carboxylic acid or its anhydride, alone or a mixture of the above polyolefin with a …
Read the whole patent
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 April 16, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 16, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 16, 2013.
- 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.