Carbon nanotubes coated with aromatic condensation polymer
CA 2513618 C · Owner: Teijin Limited · Inventors: Matsumura, Shunichi; Kuwahara, Hiroaki; Honda, Susumu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Coated carbon nanotubes coated with 0.01-100 parts by weight of at least one type of aromatic condensation polymer selected from the group consisting of wholly aromatic polyamides, wholly aromatic polyesters aromatic polyester , carbonates, aromatic polycarbonates semi-aromatic polyesters , and wholly aromatic azoles with respect to 100 parts by , weight of the carbon nanotubes as well as a process for their , production. Aromatic condensation polymer compositions comprising 0.01-100 parts by weight of the coated carbon nanotubes and 100 parts by weight of an aromatic condensation polymer, and molded articles formed using them.
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 January 19, 2004 and granted February 21, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 19, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 19, 2026.
- 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.