Semi-aromatic polyamide resin
CA 2600334 C · Owner: Yamasaki, Hiroki · Inventors: Yamashita, Takashi; Uchida, Koichi; Kashimura, Tsugunori
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A semi-aromatic polyamide resin is provided which has a high level of residence stability hot-water , resistance and chemical resistance and is also excellent in adhesive properties and compatibility with other resins and the like. The semi-aromatic polyamide resin comprises: dicarboxylic acid units in which 50 to 100 mol% of the dicarboxylic acid units are aromatic dicarboxylic acid units; and diamine units in which 60 to 100 mol% of the diamine units are aliphatic diamine units having 9 to 13 carbon atoms. Furthermore, at least 10% of terminal groups of molecular chains of the polyamide resin are blocked with a terminal-blocking agent and the amount of , terminal amino groups of …
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 March 17, 2006 and granted July 23, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 17, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.