Heat-curable resin mixture
CA 1315443 C · Owner: Tesch, Helmut · Inventors: Gerth, Dale; Tesch, Helmut; Ittemann, Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A heat-curable resin mixture is disclosed which, is based on cyanic esters and thermoplastic polymers and which, on curing, give moldings of good toughness stiffness, and heat resistance. This resin mixture contains 100 parts by weight of a polyfunctional aromatic cyanic ester; from 2 to 100 parts by weight of a monofunctional aromatic cyanic ester; from 5 to 100 parts by weight of a thermoplastic polymer having a glass transition temperature above 100°C and an average molecular weight Mn of 3,000 to 30,000 and containing reactive end groups, from 0 to 50 parts by weight of an optional bismaleimide, and from 0 to 50 parts by weight of an optional epoxy resin.
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
- Granted March 30, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 30, 2010.
- 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.