Molding composition with good capability for blow molding
CA 2365809 A1 · Owner: Hager, Harald · Inventors: Richter, Ralf; Hager, Harald; Schmitz, Guido
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A molding composition imposed of at least 50% by weight of a polyamine-polyamide copolymer which is prepared using from 0.05 to 2.5% by weight of a polyamine having at least 4 nitrogen atoms and which has a viscosity of at least 5 000 Pa~s at 250°C and at a shear rate of 0.1 1/s, and which has a viscosity ratio of at least 7 at 250°C when , the, melt viscosities at shear rates of 0.1 1/s and 100 1/s are compared with one another, has high melt stiffness and is easy to cut and performs well, in blow molding.
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 December 19, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 19, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 19, 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.