Dimensionally stable thermoplastic moulding materials
CA 2309737 A1 · Owner: Weber, Martin · Inventors: Wolf, Peter; Weber, Martin; Grutke, Stefan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to thermoplastic moulding materials containing A) 10 to 97.9 wt.% of a semi-crystalline polyamide B) 0.1 to 50 wt.% of a copolyamide , consisting of B1) 60 to 90 mol.% units derived from .epsilon.-caprolactam and B2) 10 to 40 mol.% units derived from aliphatic dicarboxylic acids and aliphatic diamines,C) 1 to 40 wt.% of a copolymer with a base of styrene or substituted styrenes and unsaturated nitriles D) 1 to 50 wt.% of a fibrous , filler and E) 0 to 30 wt.% of other additives the weight percentages of the , components A) to E) totalling 100 %.
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 November 4, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 4, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 4, 2020.
- 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.