Thermoplastic polymer compositions containing meltrheology modifiers
CA 1339699 C · Owner: Memon, Nazir Ahmed · Inventors: Memon, Nazir Ahmed
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Acrylic polymers having a minimum molecular weight of about 500,000, and preferably of about 1,500,000 are blended at levels of from 1 to 25% with thermoplastic resins to improve the melt rheology of the thermoplastic resins and facilitate blow molding thermoforming, extrusion and similar processes.
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
- Granted March 3, 1998. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 3, 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.