Polyolefin resin composition, their moldings and molding process
CA 2301310 A1 · Owner: Toshino, Hiroyuki · Inventors: Aoki, Osamu; Toshino, Hiroyuki; Takahashi, Nobuyuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A polyolefin resin composition which comprises a polyolefin resin a light, stabilizer having tertiary amino group and a fatty acid metal salt. Even if , this composition is injected repeatedly into a mold whose inside surface has a grain, pattern, stable continuous production may be possible without any white powdery, matter being deposited on the mold surface . Since injection-moldings having a surface grain pattern show excellent weather resistance and have a matted appearance having the gloss value (60°) of 1 to 3.5 they are suitable , for use as, automotive trim parts. As the light stabilizer a hindered amine-based light, stabilizer all the hydrogen atoms of the amino group of which …
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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 17, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 17, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 17, 2022.
- 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.