Sunscreen formulation containing triethanolamine neutralized 2-hydroxy-4-methoxy-benzophenone-5-sulfonic acid

Claim 2

A sunscreen formulation in the form of an emulsified lotion suitable for application to human skin comprising; an active ingredient consisting essentially of 2-hydroxy-4-methoxybenzophenone-5-sulfonic acid in amounts ranging from 0.1 percent to 30 percent by weight of said formulation, said sulfonic acid being neutralized with triethanolamine, and a compatible vehicle comprising a mixture of, by weight, 3 percent to 5 percent glycerol monostearate, 2 percent cetyl alcohol, 2 percent isopropyl palmitate, 3 percent dimethyl silicone oil, 2 percent light liquid petrolatum, 0.5 percent polyvinyl pyrrolidone, 7 percent sorbitol and up to 100 percent water.

Claim 3

A sunscreen formulation in the form of an emulsified lotion suitable for application to human skin comprising; an active ingredient of 2-hydroxy-4methoxy-benzophenone-5-sulfonic acid in an amount of 10 percent by weight of said formulation, said sulfonic acid being neutralized with triethanolamine, and a compatible vehicle comprising a mixture of, by weight, 5 percent glycerol monostearate, 2 percent cetyl alcohol, 2 percent isopropyl palmitate, 3 percent dimethyl silicone oil, 2 percent light liquid petrolatum, 0.5 percent polyvinyl pyrrolidone, 7 percent sorbitol and up to 100 percent water.

Claim 4

A sunscreen formulation in the form of an emulsified lotion suitable for application to human skin comprising; an active ingredient consisting essentially of 2-hydroxy-4-methoxybenzophenone-5-sulfonic acid in amounts ranging from about 3 percent to 10 percent by weight of said formulation, said sulfonic acid being neutralized with triethanol-amine, and a compatible vehicle comprising a mixture of, by weight, 3 percent glycerol mono- and di-stearate, 19 percent sorbitol, 1 percent ceresin wax, 1 percent beeswax, 11 percent mineral oil and up to 100 percent water.

Claim 5

A sunscreen formulation in the form of a liquid suitable for application to human skin comprising; an active ingredient of 2-hydroxy-4-methoxy-benzophenone-5-sulfonic acid in an amount of 10 percent by weight of said formulation, said sulfonic acid being neutralized with triethanolamine, and a compatible vehicle comprising a mixture of, by weight, 20 percent denatured alcohol, 3 percent dimethyl silicone oil and up to 100 percent water.

Claim 6

A sunscreen formulation in the form of a liquid suitable for application to human skin comprising; an active ingredient of 2-hydroxy-4-methoxy-benzophenone-5-sulfonic acid in an amount of 10 percent by weight of said formulation, said sulfonic acid being neutralized with triethanolamine, and a compatible vehicle comprising a mixture of, by weight, 30 percent denatured alcohol, 3 percent dimethyl silicone oil, 0.5 percent glycerol monostearate and up to 100 percent water.