Thermoplastic polyurethanes and thermoplastic polyurethane blends containing a processing aid
CA 1111985 A · Owner: Mobay Chemical Corporation · Inventors: Carter, Russell P. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The instant invention is directed to novel thermoplastic polyurethane materials containing a processing aid. More particularly, the instant invention is directed to a thermoplastic polyurethane composition comprising: (A) from 40 to 100 percent by weight of a thermoplastic polyurethane, (B) from 0 to 60 percent by weight of a thermoplastic polymer selected from the group consisting of thermoplastic polycarbonates, thermoplastic polyoxymethylenes thermoplastic acrylonitrile/butadiene/styrene graft copolymers thermoplastic polybutylene terephthalates thermoplastic, polyethylene terephthalates and mixtures thereof and, (C) from 0.5 to 10 percent by weight based on the amount of (A) and (B), of …
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 November 3, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 3, 1998.
- 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.