Cationic polydiorganosiloxanes for treating proteinaceous substrates
CA 1234444 A · Owner: Dow Corning Corporation · Inventors: Roth, Charles A.; Ziemelis, Maris J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, New cationic polydiorganosiloxanes are disclosed that are substantive to proteinaceous substrates. These cationic polydiorganosiloxanes have methyl substituents and diaminoalkyl substituents reacted with benzyl chloride. These cationic polydiorganosiloxanes are easily emulsified and are useful for treating human hair human skin, and, animal fur.
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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 March 22, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 22, 2005.
- 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.