Fire retardant thermoplastic polyester and polyesterether compositions
CA 1256236 A · Owner: Occidental Chemical Corporation · Inventors: Markezich, Ronald L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Thermoplastic polyester and polyesterether compositions having improved flame retardance smoke, generation and heat aging, reduced blooming and superior high temperature processability comprise a thermoplastic polyester or polyesterether resin derived from 1,4-butanediol and dimethyl terephthalate anti-, mony oxide, optionally fiberglass and a chlorinated bisimide of the formula:, (II)
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 June 20, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 20, 2006.
- 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.