Process for preparing functionalized polymeric compositions
CA 1321851 C · Owner: Swift, Graham · Inventors: Swift, Graham; Hughes, Kathleen Anne
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Functionallzed polymeric compositions are prepared by polymerizing ethylenically unsaturated functional monomers in a solvent including a reactive compound. The functional groups of the reactive compound and the functional monomer react during or subsequent to the polymerization of the functional monomer to provide a functionalized polymeric composition. The reactive compound can be a hydroxy-terminated, poly(ethyleneoxy)ated hydrophobe-bearing compound and the functional monomer can be a polymerizable carboxylated monomer, the functionalization in this case being a condensation. Removal of the water of condensation by azeotropic distillation drives the reaction to completion. The resulting …
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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 August 31, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 31, 2010.
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Timeline
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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.