Polyamide thermoplastic compositions with improved impact strength properties
CA 2405157 A1 · Owner: Bussi, Philippe · Inventors: Bussi, Philippe; Montanari, Thibaut; Bouilloux, Alain
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a polyamide thermoplastic composition comprising: 50 to 98 parts of a non-diamine polyamide (A1); 0.2 to 40 parts preferably 0.2 to 9 parts of a diamine polyamide (A2) said polyamide (A2) being different from the polyamide (A1) and the mass ratio (A2)/(A1) being less than 1; 1 to 60 parts preferably 1 to 30 parts of a reactive impact modifier (B) or a mixture of modifiers comprising at least a reactive impact modifier. The invention also concerns an impact modifying composition and the method for preparing said thermoplastic composition using said impact modifying composition.
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 April 3, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 3, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 3, 2023.
- 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.