Ethoxylated sulfonium switterionic compounds and detergent compositions containing them
CA 1083170 A · Owner: The Procter & Gamble Company · Inventors: Gosselink, Eugene P.; Richmond, James M.; Wentler, George E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Compounds of the formula wherein R1 and R2 are each straight chain branched chain or, cyclic alkyl, alkenyl aryl, aralkyl or alkaryl moieties having from 1-30 carbon atoms, R3 is a C2-C8 alkylene alkenylene, arylene or alkarylene moiety; R4 is a C1-C8 alkylene. alkenylene arylene or alkarylene moiety: A is watersolubilizing anionic moiety: and n is from 1 to about 100 are useful as surfactants. Compounds wherein groups R1 R2, and R3 and integer n are selectively chosen provide good clay soil detergency performance even in the absence of boulders. The compounds are usefully combined With other organic surfactants to provide detergent compositions having good clay and oily soil removal …
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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 5, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 5, 1997.
- 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.