Thermoplastic polyester molding composition having an improved impact performance
CA 1281827 C · Owner: Markusch, Peter H. · Inventors: Markusch, Peter H.; Witman, Mark W.; Chung, James Y.J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A thermoplastic molding composition comprising a blend of a polyethylene terephthalate an impact, modifying compound having a core/shell struvture and a certain blocked (capped) polyisocyanate prepolymer is disclosed characterized in that it has an improved level of impact strength.
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 19, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 19, 2008.
- 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.