Resin composition
CA 2096608 C · Owner: Mitsui Chemicals, Inc. · Inventors: Kato, Tatsuo; Imuta, Shinichi; Kobayashi, Masami
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The improved resin composition that comprises (A) 99 - 40 parts by weight of a 4-methyl-1-pentene based polymer (B), 0 - 30 parts by weight of a butene based liquid polymer having a kinematic viscosity of 2 - 5000 cSt at 100°C and, (C) 1 - 30 parts by weight of a butene-1 based solid polymer with the sum of (A) + (B) + (C) being 100 parts by weight. The resin composition is excellent in heat resistance flexibility, and impact resistance.
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 May 19, 1993 and granted June 25, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 19, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 19, 2015.
- 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.