Thermoplastic resin composition
CA 2028673 C · Owner: Nippon A & L Inc. · Inventors: Shinohata, Masahiro; Sato, Ichiro; Nishikubo, Yoshiaki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a thermoplastic resin composition comprising 1 to 300 parts by weight of a copolymer (A) which is obtainable by polymerizing 0.1 to 400 parts by weight of an unsaturated epoxy monomer and 0 to 1,000 parts by weight of other copolymerizable monomers in the presence of 100 parts by weight of an ethylene-.alpha.-olefin base rubber and, 100 parts by weight of a mixture comprising 90 to 10 % by weight of a polycarbonate resin (B) and 10 to 90 % by weight of a saturated polyester (c). The composition can be used to form a molded article having improved balance among heat resistance, chemical resistance, impact resistance and a shrinkage factor; falling ball impact …
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 October 26, 1990 and granted December 11, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 26, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 26, 2012.
- 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.