Zwitterionic compounds having clay soil removal/anti- redeposition properties useful in detergent compositions
CA 1210000 A · Owner: The Procter & Gamble Company · Inventors: Rubingh, Donn N.; Gosselink, Eugene P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Water-soluble zwitterionic compounds having clay soil removal/anti-redeposition properties. The zwitterionic compounds are selected from monozwitterionic compounds dizwitterionic, compounds, polyzwitterionic compounds and zwitterionic polymers. These zwitterionic compounds are useful in detergent compositions at from about 0.05 to about 95% by weight. In addition to the zwitterionic compounds, the detergent compositions further comprise from about 1 to about 75% by weight of a nonionic anionic, ampholytic, zwitterionic, or cationic detergent surfactant or mixture thereof.
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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 19, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 19, 2003.
- 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.