Antiperspirant compositions
AssigneeUnilever Home & Personal Care USA, Division of Conopco, Inc.
InventorsBeng Sim Chuah, Sarah Jane Clare, Kevin Ronald Franklin, Gordon Charles Hough, Graham Andrew Turner
Life of this patent
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Abstract
Soft solid antiperspirant formulations in which a particulate antiperspirant active material is suspended in a continuous phase containing a water-immiscible liquid which is structured by specified proportions of an organic polymeric thickener and a second structurant selected from fibre-forming structurants and waxes (often other than fatty alcohols) or a mixture of both. Such soft solid formulations avoid or minimise problems inherent in production of many published formulations such as sensitivity to small changes in concentration of the structurant.
Claims20
An antiperspirant soft solid composition having a continuous phase which contains water-immiscible liquid, and contains
- i) 1.5 to 15%, by weight of the composition, of an organic polymer which is effective to increase the viscosity of the water-immiscible liquid;
- ii) second structuring material selected from the group consisting of
- a) 0.5 to 7% by weight of the composition of structurant which forms a network of fibres within the continuous phase,
- b) 0.5 to 15% by weight of the composition of waxes, other than fatty alcohols, which are solid at temperatures of 30 C. and below, but melt below 95 C., and
- c) mixtures thereof;
- iii) from 0 to 3%, by weight of the composition, of fatty alcohol which is solid at 20 C., with the proviso that the total amount of any said fatty alcohol is less than the total of said organic polymer (i) and second structuring material (ii);
- and
- a particulate antiperspirant active in suspension in said continuous phase.
Dependencies are inferred from the claim text.