UV-protection formulation
AssigneeCiba Specialty Chemicals Corporation
InventorsHelmut Luther, Albert Stehlin, Bernd Herzog
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Abstract
The present invention provides, as a first aspect, a sun protection agent, which is especially suitable for use in pharmaceutical or cosmetic applications, comprising a) a micronized organic UV absorber; and one, or preferably both of; b) an oil-soluble, non-micronized UV absorber and/or an inorganic micropigment; and c) a polymeric hollow sphere additive and/or a polymer selected from xanthan and/or polyvinylpyrrolidone. The present invention also provides a sunscreen composition comprising A) 0.1 to 15%, preferably 0.5 to 10% by weight, based on the total composition of a sun screen agent according to the present invention; and B) a cosmetically acceptable carrier.
Claims24
A sun protection agent comprising
- a) a micronised organic UV absorber;
- b) an oil-soluble, non-micronised UV absorber selected from the group consisting of p-aminobenzoic acid derivatives, salicylic acid derivatives, benzophenone derivatives, dibenzoylmethane derivatives, diphenylacrylate derivatives, benzofuran derivatives, polymeric UV absorbers containing one or more silico-organic residues, cinnamate esters, camphor derivatives, trianilino-s-triazine derivatives, urocanic acid (3-imidazol-4-yl-acrylic acid) or its ethyl ester, menthyl anthranilate, benzotriazoles and hydroxyphenyltriazine derivatives;
- and
- c) a styrene/acrylic acid copolymer hollow sphere material.
Dependencies are inferred from the claim text.