Conductive thermosetting compositions and process for using same
CA 1269189 C · Owner: W.R. Grace & Co.-Conn. · Inventors: Lin, Shiow Ching; Barber, Craig Scott
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention is directed to a process and a novel composition for forming a conductive thermoset material which comprises admixing, (a) particles of a polymeric material crosslinked to at least its gel point and swellable at its plasticization temperature, (b) at least one liquid reactive plasticizer for (a) (c) optionally and preferably a curing agent for the reactive plasticizer, and, (d) heat or electrically conductive particles and thereafter heating the admixture for a time sufficient to flux and cure same to obtain a conductive thermoset material. The crosslinking of the thermoplastic polymer can optionally be carried out in a solvent for the polymer. Upon heating above the …
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 May 15, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 15, 2007.
- 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.