Waterproof high-SPF sunscreen compositions
AssigneeBristol-Myers Squibb Company
InventorSie-Ta R. Han
Life of this patent
Estimating the term…
Abstract
Sunscreen compositions which are waterproof and have high-SPF values comprise a water insoluble film-forming polymer, a polyoxypropylene ether of straight or branched chain alcohol (the emollient/solvent) and a sunscreen component containing at least one UVB type sunscreen and/or at least one UVA type sunscreen in a topical vehicle, preferably in the form of an alcoholic gel. In particular, the combination of a polyoxyalkylene ether of a straight or branched chain alcohol, a carboxylated acrylic copolymer and a sunscreen agent yields waterproof, high-SPF compositions.
Claims15
A waterproof high-SPF Sunscreen composition comprising:
- (a) from about 1 weight % to about 10 weight % based on the total weight of the composition, of a water insoluble carboxylated acrylic copolymer selected from the group consisting of acrylate/t-octylpropenamide, octylacrylamide/acrylate/butylaminoethyl methacrylate copolymer, sand octylacrylamide/acrylates copolymer;
- (b) from about 1 weight % to about 60 weight % of polyoxypropylene (15) stearyl ether;
- (c) from about 1 weight % to about 30 weight % of a sunscreen component containing at least one UVB sunscreen and/or at least one UVA sunscreen.
Dependencies are inferred from the claim text.