Aqueous microemulsions comprising functional perfluoropolyethers
CA 1311983 C · Owner: Lenti, Daria · Inventors: Visca, Mario; Lenti, Daria
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Perfluoropolyether microemulsions of the oil-in-water or water-in-oil type, consisting of perfluoropolyethers exhibiting an average molecular weight from 1,500 to 10,000 the end groups of which being at least partially of the functionalized type, optionally containing peroxide bridges in the chain and consisting of mixtures of products having different molecular weights, of a perfluorinated surfactant and/or a co-surfactant of the alkanol type having 1 to 12 C and of an aqueous liquid optionally comprising an electrolyte.
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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 December 29, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 29, 2009.
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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.