Concentrated solutions of a 1,3,5-triazine derivative sunscreen and their use for the preparation of cosmetic compositions
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United States of America Patent
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Jun 2, 1998
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N/A
app pub date -
Dec 26, 1996
filing date -
Dec 26, 1996
priority date (Note) -
Expired
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Abstract
It is disclosed a solution consisting of from 15 to 60% by weight of a compound of formula (I) ##STR1## and from 40 to 85% by weight of at least an ester of formula (II) A-(COO-B).sub.n (II) wherein: n is the number 1 or 2; A, when n is 1, is a C.sub.6 -C.sub.20 straight or branched alkyl group, phenyl, optionally substituted with one or more C.sub.1 -C.sub.4 straight or branched alkyl groups, hydroxy, C.sub.1 -C.sub.4 straight or branched alkoxy, or when n is 2, A is a saturated or unsaturated C.sub.2 -C.sub.12 alkylene chain, optionally substituted with one or more hydroxy groups or A is a phenylene group, B is a C.sub.3 -C.sub.18 straight or branched alkyl group; C.sub.5 -C.sub.12 cycloalkyl optionally substituted with one or more C.sub.1 -C.sub.4 straight or branched alkyl groups. Said solution is useful for the preparation of sun protecting cosmetic compositions as well as for their stabilization against photoinduced degradation.
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