Occlusive formulations
AssigneeLG Household & Health Care Ltd.
InventorsPallav Arvind Bulsara, Martyn J. Clarke, Anthony V. Rawlings
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Abstract
The invention provides a topical o/w emulsion which moisturizes, and protects, repairs or restores the skin lipid barrier of a mammal. The topical o/w emulsion composition comprises a discontinuous oil phase; a continuous aqueous phase comprising water; a thickening agent; at least one lamellar membrane structure comprising a phospholipid, a fatty alcohol, and a fatty acid; and wherein in use the composition has a water vapor transmission rate of less than about 70 g·m−2·hr−1 measured in vitro using the modWVTR test methodology.
Claims10
A topical oil-in-water emulsion composition comprising:
- (a) a discontinuous oil phase;
- (b) a continuous aqueous phase comprising water;
- (c) a thickening agent;
- (d) at least one lamellar membrane structure comprising (i) a phospholipid which is hydrogenated phosphatidylcholine, (ii) a fatty alcohol which is behenyl alcohol or a mixture of cetyl alcohol and behenyl alcohol, (iii) a fatty acid which is behenic acid, and (iv) an ester of a fatty acid and a fatty alcohol which is isostearyl isostearate,
- wherein the fatty alcohol and the phospholipid are present in a weight ratio of from about 10:1 to about 1:1;
- the fatty alcohol and the fatty acid are present in a weight ratio of from about 10:1 to about 1:1;
- and the fatty alcohol and the ester are present in a weight ratio of from about 10:1 to about 1:1;
- and
- wherein in use the composition has a water vapor transmission rate of less than about 70 g·m−2·hr−1 measured in vitro using the modWVTR test methodology.
Dependencies are inferred from the claim text.