Improved sunscreen or sunblock composition

Claim 2

In an improved sunscreen or sunblock composition comprising from about 50 to about 90% by weight water, from about 1 to about 20% by weight of at least one emollient, from about 1 to about 10% by weight of at least one emulsifier, from about 0.05 to about 2% by weight of at least one preservative and wherein the improvement comprises including a tri(hydroxyalkyl)rutoside in an amount within the range of from about 0.2 to about 3% by weight based on the total composition to impart moisturizing properties to said composition and enhance sunscreening properties thereof.

Claim 3

The composition as defined in claim 1 wherein said tri(hydroxyalkyl)rutoside is troxerutin.

Claim 4

The composition as defined in claim 1 in the form of a moisturizing sun screen composition and includes from about 1 to about 15% by weight of at least one UV-B ultraviolet absorbing agent.

Claim 5

The composition as defined in claim 3 wherein said UV-B ultraviolet absorbing acid is 4-(dimethylamino)benzoic acid, 2-ethyl hexyl ester.

Claim 6

The composition as defined in claim 1 further including one or more UV-A absorbing and one or more UV-B absorbing agents.

Claim 7

The composition as defined in claim 5 wherein the UV-A absorbing agent or agents are present at from about 0.5% to about 10% by weight and the UV-B absorbing agent or agents are present at from about 3% to about 10% by weight.

Claim 8

The composition as defined in claim 6 wherein the UV-A absorbing agent is one or more selected from the group consisting of 2-(2'-hydroxy-5'-methylphenyl)benzotriazole; 2-(2'-hydroxy-5'-t-octylphenyl)benzotriazole; 2,4-dihydroxybenzophenone; 2-hydroxy-4-methoxybenzophenone; 2,2', 4,4'-tetrahydroxybenzophenone; 2,2'-dihydroxy-4,4'-dimethoxybenzophenone; 2,2'-dihydroxy-4-methoxybenzophenone; 2-ethylhexyl-4-phenylbenzophenone carbonate; 2-hydroxy-4-methoxy-4'-methylbenzophenone; 2-hydroxy-4-(n-octyloxy)benzophenone; butyl methoxydibenzoyl methane; benzphthalide; 4-phenylbenzophenone; and 2-ethylhexyl-2-cyano-3,3'-diphenylacrylate and the UV-B absorbing agent is one or more selected from the group consisting of 4-(dimethylamino)benzoic acid, ethyl ester; 4-(dimethylamino)benzoic acid, 2-ethylhexyl ester; 4-(dimethylamino)benzoic acid, pentyl ester; glyceryl p-aminobenzoate; isobutyl p-aminobenzoate; 2-ethylhexyl methoxy cinnamate; phenylbenzimidazole sulfonic acid; homomenthyl salicylate, ethyl hexyl salicylate and isopropyl p-aminobenzoate.

Claim 9

The composition as defined in claim 6 wherein the UV-A absorbing agent is 2-hydroxy-4-methoxybenzophenone alone or in combination with 2,2'-dihydroxy-4-methoxybenzophenone and the UV-B absorbing agent is 4-(dimethylamino)benzoic acid, 2-ethylhexyl ester.

Claim 10

The composition as defined in claim 4 wherein the tri(hydroxyalkyl)rutoside is present in an amount within the range of from about 0.3 to about 3% by weight.

Claim 11

The composition as defined in claim 9 wherein the tri(hydroxyalkyl)rutoside is troxerutin.

Claim 12

The composition as defined in claim 1 wherein water is present in an amount of from about 50 to about 90% by weight, emollients are present in an amount of from about 1 to about 5% by weight, emulsifiers are present in an amount of from about 1 to about 10% by weight, thickeners are present in an amount of from about 0.1 to about 1% by weight, humectants are present in an amount of from about 1 to about 5% by weight, preservatives are present in an amount of from about 0.5 to about 1% by weight.

Claim 13

The composition as defined in claim 4 offering maximum ultraviolet protection comprising from about 60% to about 80% by weight of water, from about 0.5 to 2% by weight of troxerutin, from about 0% to about 5% by weight of 2-hydroxy-4-methoxybenzophenone alone or in combination with 2,2'-dihydroxy-4-methoxybenzophenone, from about 2% to about 10% by weight of 4-(dimethylamino)benzoic acid, 2-ethylhexyl ester, from about 1% to about 5% by weight of emollients, from about 1% to about 10% by weight of emulsifiers, and up to about 1% by weight of combined preservatives, antioxidants and fragrances.

Claim 14

The composition of claim 12 comprising about 73% by weight of deionized water, about 2% to about 4% by weight of 2-hydroxy-4-methoxy-benzophenone, up to about 1% by weight of 2,2'-dihydroxy-4-methoxybenzophenone, about 3 to 5% by weight of 4-(dimethylamino)benzoic acid, 2-ethylhexyl ester, from about 2% to about 4% by weight of emollients, from about 3% to about 8% by weight of emulsifiers, and up to about 1% by weight of combined preservatives, antioxidants and fragrances.

Claim 15

In a method of enhancing the sunscreen properties of a sunscreen composition which contains from about 2 to about 15% by weight of one or more ultraviolet absorbing agents, the improvement which comprises including at least about 0.5% by weight of troxerutin within the composition.

Claim 16

In a method of enhancing the sunscreen properties of a sunscreen composition which contains from about 2 to about 15% by weight of one or more ultraviolet absorbing agents, the improvement which comprises including at least about 0.5% by weight of troxerutin within the composition.

Claim 17

The method as defined in claim 14 wherein the sun screen composition contains from about 3% to about 15% by weight of ultraviolet absorbing agents by weight of the composition.

Claim 18

The composition as defined in claim 1 wherein said tri(hydroxyalkyl) rutoside is troxerutin and said sunscreen agent is 4-(dimethylamino)benzoic acid, 2-ethylhexyl ester, wherein the troxerutin is present in a weight ratio to the 2-ethyl hexyl ester of within the range of from about 0.04:1 to about 3:1.

Claim 19

The composition as defined in claim 16 wherein the troxerutin is present in a weight ratio to the 4-(dimethylamino)benzoic acid, 2-ethylhexyl ester of within the range of from about 0.1:1 to about 2:1.

Claim 20

The composition as defined in claim 1 further including a thickener in an amount within the range of from about 0.05 to about 1% by weight.