Process for the production of radiation-crosslinked thermoplastic polyurethanes
CA 1313285 C · Owner: Winkler, Jurgen · Inventors: Winkler, Jurgen; Goyert, Wilhelm; Perrey, Hermann
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Mo-2901, LeA 24,492, A PROCESS FOR THE PRODUCTION OF RADIATION- CROSSLINKED THERMOPLASTIC POLYURETHANES ABSTRACT OF THE DISCLOSURE, The invention is directed to a process for the production of polyurethanes suitable for thermoplastic processing comprising mixing I. at least 75 % by weight of preformed thermoplastic polyurethane elastomers, or of a blend of, (A) substantially bifunctional compounds, (B) substantially bifunctional chain-extending agents, (C) organic diisocyanates and optionally (D) lubricants or other known additives said blend characterized in that it contains no peroxides and polymerization initiators which decompose into radicals under the effect of actinic light and …
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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 January 26, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 26, 2010.
- 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.