Antiperspirant compositions
AssigneeConopco, Inc., d/b/a UNILEVER
InventorsKarim Mohamed Anwar M. FAWZY, Kevin Ronald FRANKLIN, Philip Christopher WATERFIELD
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Abstract
An aqueous composition comprising basic aluminium chloride salt, water soluble calcium salt, and amino acid, characterised in that the basic aluminium chloride salt is of formula Al2OH4.4Cl1.6 to Al2OH4.9Cl1.1 and methods for making such compositions having enhanced antiperspirancy performance.
Claims15
An aqueous composition comprising basic aluminium chloride salt, water soluble calcium salt, and amino acid, characterised in that the basic aluminium chloride salt is of formula Al2OH4.4Cl1.6 to Al2OH4.9Cl1.1.
A composition according to any of the preceding claims, wherein the water soluble calcium salt is calcium chloride and the amino acid is glycine.
A composition according to any of the preceding claims, wherein the composition is an oil-in-water emulsion comprising an emulsifier.
A composition according to any of the preceding claims wherein the basic aluminium chloride salt is of formula Al2OH4.7Cl1.3 to Al2OH4.9Cl1.1.
A composition according to any of the preceding claims wherein the basic aluminium chloride has a Band III content measured by SEC of greater than 30%.
A method of manufacture of an aqueous antiperspirant composition comprising the steps of:
- (i) mixing basic aluminium chloride salt, water soluble calcium salt, amino acid, and water, (ii) heating the mixture to a temperature of at least 65° C., and (iii) cooling the mixture to ambient temperature, characterised in that the basic aluminium chloride salt used is of formula Al2OH4.4Cl1.6 to Al2OH4.9Cl1.1.
Dependencies are inferred from the claim text.