Mild cold pearlizing concentrates
CA 2282701 A1 · Owner: Rhodia Inc. · Inventors: Zhang, Chengshuang; Chen, Pu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Cold pearlizing concentrates are described which provide pearlescence to personal care and beauty care products such as shampoos and beauty soaps, giving added luster and sheen. The pearlizing agent consists essentially of a fatty acid based member selected from the group consisting of hydroxyl stearate, polyethylene glycol mono- and di-stearates ethylene glycol mono- , and di-stearates stearic monoethanolamide, and mixtures thereof wherein at , least about 90 % by weight of the fatty acids of said fatty acid based member consists of octadecanoic acid. The pearlizing agent has high temperature stability and is stable in shampoos which also contain a silicone emulsion even at …
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 March 6, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 6, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 6, 2020.
- 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.