Shampoos and conditioning shampoos having increased capacity for incorporation of conditioning agents and removal of hair soil
CA 2046934 A1 · Owner: Martin, Kathleen · Inventors: Martin, Kathleen; Walling, Priscilla L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A shampoo composition comprises an emulsion of water; an anionic cleaning surfactant; and a di-long chain alkyl quaternary nitrogen-containing compound wherein the two, long alkyl chains bonded to the nitrogen atom have from about 12 to about 22 carbon atoms per alkyl chain and wherein the molar ratio of anionic cleaning surfactant to di-long chain alkyl quaternary nitrogen-containing compound is at least about 85 to 1. The invention permits incorporation of unexpectedly high amounts of conditioning agents such as hydro-, carbons including long chain hydrocarbons and silicones; and, removal of oils, greases soils, conditioning agents and the, like from the hair.
Read the whole patent
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
- Filed July 12, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 12, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 12, 2013.
- 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.