Stabilized thermoplastic molding materials based on polyphenylene ethers and polyamides
CA 2024729 A1 · Owner: Ostermayer, Bertram · Inventors: Muehlbach, Klaus; Muehlbach, Klaus; Ostermayer, Bertram
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
27 - O.Z. 0050/41085, Abstract of the Disclosure: Thermoplastic molding materials containing, as essential components A) from 10 to 89.9 % by weight of a thermoplastic polyamide, B) from 10 to 89.9 % by weight of a modified polyphenylene ether, C) from 0.1 to 8 % by weight of a metal sulfide and in, addition, D) from n to 40 % by weight of a fibrous or particulate filler or a mixture thereof, E) from 0 to 25 % by weight of an impact-modifying rubber and, F) from 0 to 25 % by weight of a flameproofing agent.
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 September 6, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 6, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 6, 2012.
- 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.