Basic aluminum antiperspirant active material having enhanced activity, antiperspirant active composition containing such material, and methods for preparation of such material and composition
CA 1340188 C · Owner: Barr, Morton Lawrence · Inventors: Barr, Morton Lawrence; Vincenti, Paul Joseph
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a basic aluminum material having enhanced antiperspirant activity, the material having the empirical formula Al2(OH)6-a X a, where 0.5 ~ a ~ 5.0 and X is a, univalent complex oxoanion of nitrogen chlorine and other, halogens, which does not form strong coordination compounds with Al3+ so that non-hydrolyzed aqueous monomeric aluminum solutions containing the anion are essentially completely dissociated, and which are readily soluble in water with metallic ions in the solution; and wherein the material is characterized by:, (a) size exclusion high performance liquid chromatography peaks corresponding to peak 3 and peak 4 of size exclusion chromatograms formed by HPLC technique; …
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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 December 15, 1998. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 15, 2015.
- 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
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.