Polyolefin resin composition, process for producing polyolefin resin molding material, molded polyolefin resin, and weatherstrip and process for producing the same
CA 2353065 A1 · Owner: Ishii, Masahiro · Inventors: Omura, Hirofumi; Higashikawa, Kiyoshi; Ishii, Masahiro
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 has satisfactory moldability and gives a molding having an excellent balance between rigidity and impact resistance. The composition comprises a mixture of a polyolefin resin and an inorganic filler having an average particle diameter of 10 µm or smaller wherein the , content of the inorganic filler is 0.5 to 85 wt.% based on the mixture.
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 December 13, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 13, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 13, 2021.
- 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.