Treating composition containing fluorochemical compound mixture and textiles treated therewith
CA 1264402 C · Owner: Fong, James J. · Inventors: Fong, James J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides a treating composition comprising, (a) a compound having the formula where, Rf is a fluorinated aliphatic radical; A is a divalent radical obtained by, eliminating the carbonyl groups of a dibasic organic acid or an organic anhydride selected from the group consisting of tetrachloro phthalic tetrabromo phthalic and chlorendic; and M is a cation selected from the group, consisting of NH4+ Na+, K+, Li+, H+, or a, protonated alkyl amine having from 1-6 carbon atoms in the alkyl group;, (b) a normally liquid or low melting solid water, soluble or dispersible, fluoroaliphatic radical-containing poly(oxyalkylene) compound; and (c) the balance of 100 parts of a liquid …
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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 16, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 16, 2007.
- 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
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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.