Thermoplastic elastomer composition
CA 2080016 A1 · Owner: Sumitomo Chemical Co. Ltd. · Inventors: Manabe, Kenji; Niwano, Masahiro; Hikasa, Tadashi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a thermoplastic elastomer composition having high thermal resistance. It comprises a thermoplastic graft copolymer of which main chain is constituted by a polymer having a glass transition temperature of 10°C or blow and side chain is constituted by an aromatic oligomer having a flow temperature of 100°C or above, and an olefinic polymer.
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 August 21, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 21, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 21, 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.