A - Human Necessities – 61 – K
Patent
A - Human Necessities
61
K
A61K 8/11 (2006.01) A61K 8/29 (2006.01) A61K 8/42 (2006.01) A61K 8/49 (2006.01) A61K 8/73 (2006.01) A61K 8/81 (2006.01) A61Q 17/04 (2006.01)
Patent
CA 2243553
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 micronised organic UV absor.ber; and one, or preferably both of; b) an oil-soluble, non-micronised 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 to15%, 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.
L'invention fournit, comme premier aspect, un agent de protection contre le soleil, convenable particulièrement pour l'utilisation dans des applications pharmaceutiques ou cosmétiques, comprenant a) un absorbeur UV organique micronisé et b) un absorbeur UV non micronisé soluble dans l'huile ou un micropigment inorganique, mais les deux de préférence et c) un additif en forme de sphère creuse polymère et/ou un polymère choisi entre le xanthane et/ou la polyvinylpyrrolidone. L'invention fournit aussi une composition d'écran solaire comprenant A) de 0,1 à 15 %, de préférence entre 0,5 et 10 % en poids, d'après la composition totale d'un agent d'écran solaire conforme à la présente invention et B) un excipient utilisable dans les cosmétiques.
Herzog Bernd
Luther Helmut
Stehlin Albert
Ciba Specialty Chemicals Holding Inc.
Fetherstonhaugh & Co.
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