Resin composition for capstock
CA 2412646 A1 · Owner: Nishimura, Riichi · Inventors: Nishimura, Riichi; Sugaya, Takahiko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A resin composition for capstock, comprising 100 to 30 parts by weight of an impact resistance modifier having a multilayer structure and 0 to 70 parts by , weight of a methyl methacrylate (co)polymer containing 50 to 100 % by weight of methyl methacrylate and 50 to 0 % by weight of a monomer which is copolymerizable therewith, wherein the total amount of the impact resistance modifier and the methyl methacrylate (co)polymer is 100 parts by weight wherein the outer layer of said impact resistance modifier and/or said methyl methacrylate copolymer is copolymerized with 0.5 to 40 % by weight of a reactive monomer based on the total amount of the impact resistance modifier and the …
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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 April 23, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 23, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 23, 2024.
- 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.