Resin composition containing crystalline polyimide
CA 2372573 A1 · Owner: Ishiwata, Toyoaki · Inventors: Ishiwata, Toyoaki; Toyohara, Kiyotsuna; Sadanobu, Jiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A resin composition comprising a blend of a crystalline polyimide e.g. one , represented by formula (1) wherein R1 represents an optionally substituent divalent, C2-30, aromatic or aliphatic organic group; and Ar1 represents an , optionally substituted C6-45 aromatic group, with a thermoplastic polyester. The resin composition is excellent in mechanical properties e.g. high , modulus, and in flowability and heat resistance. It is suitable for use in electronic parts capable of surface mounting.
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 10, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 10, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 10, 2022.
- 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.