Ductile poly(arylene sulfide) resin compositions
CA 2097024 A1 · Owner: Hoechst Celanese Corporation · Inventors: Sullivan, Vincent J.; Auerbach, Andrew B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A resin composition which comprises: (A) from about 99.5 to about 70 percent by weight based on, the total weight of components (A) and (B) of a poly(arylene, sulfide) having a melt viscosity of from about 300 to about 8,000 poise at 1,200 sec-1 and 310°C;, (B) from about 0.5 to about 30 percent by weight based on, the total weight of components (A) and (B) of an emulsion, cured silicon rubber which is the condensation product of (i) an organopolysiloxane having at least two terminal active hydrogen functional groups per molecule and (ii) an, organohydrogenpolysiloxane having at least two silicon-bonded hydrogen atoms per molecule; and, (C) from about 0.1 to about 2.0 parts by weight based …
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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 May 26, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 26, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 26, 2015.
- 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.