摘要:
Topically applicable sunscreen/cosmetic compositions well suited for enhanced photoprotection of human skin and/or hair against the damaging effects of UV-A and UV-B irradiation, particularly solar radiation, comprise a photoprotecting effective amount of a novel benzotriazole-substituted polyorganosiloxane/polyorganosilane having one of the formulae (1) to (3): ##STR1## wherein A is a monovalent benzotriazole radical bonded directly to a silicon atom and having the formula (4): ##STR2## the compounds of formulae (1) to (3) are prepared, e.g., via hydrosilylation, from novel intermedates, per se also exhibiting sunscreen activity, and having the formula (4a): ##STR3##
摘要:
Topically applicable sunscreen/cosmetic compositions well suited for enhanced photoprotection of human skin and/or hair against the damaging effects of UV-A and UV-B irradiation, particularly solar radiation, comprise a photoprotecting effective amount of a novel cinnamonitrile-substituted polyorganosiloxane/polyorganosilane.
摘要:
Topically applicable sunscreen/cosmetic compositions well suited for enhanced photoprotection of human skin and/or hair against the damaging effects of UV-A and UV-B irradiation, particularly solar radiation, comprise a photoprotecting effective amount of a novel cinnamonitrile-substituted polyorganosiloxane/polyorganosilane having one of the formulae (1) to (3): ##STR1## wherein A is a monovalent cinnamonitrile radical which comprises an alkylene or alkyleneoxy bridging group, which is bonded directly to a silicon atom, and which has the formula (4): ##STR2##
摘要:
The invention relates to novel compounds of the organosiloxane and organosilane type, bearing at least one function derived from salicylic acid. These novel products have, in particular, desquamating and/or anti-aging properties and may be used in topical application.
摘要:
A photostable cosmetic filter composition for protecting human skin against UV radiation at wavelengths between 280 and 380 nm comprises, in a cosmetically acceptable support medium containing at least one oily phase, 1 to 3% by weight of a dibenzoylmethane derivative and at least 1% by weight of a substituted dialkylbenzalmalonate having formula I: ##STR1## R.sub.1 and R.sub.3 may be identical or different and represent H or a straight- or branched-chain C.sub.1 -C.sub.8 alkoxy radical. R.sub.2 and R.sub.4 represent a straight- or branched-chain C.sub.1 -C.sub.8 alkyl radical. The molar ratio of compound (I) to the dibenzoylmethane derivative is greater than or equal to 0.6.
摘要:
A photostable cosmetic filter composition for protecting human skin against UV radiation at wavelengths between 280 and 380 nm comprises, in a cosmetically acceptable support medium containing at least one oily phase, 1 to 3% by weight of a dibenzoylmethane derivative and at least 1% by weight of a substituted dialkylbenzalmalonate having formula I: ##STR1## R.sub.1 and R.sub.3 may be identical or different and represent H or a straight- or branched-chain C.sub.1 -C.sub.8 alkoxy radical.R.sub.2 and R.sub.4 represent a straight- or branched-chain C.sub.1 -C.sub.8 alkyl radical.The molar ratio of compound (I) to the dibenzoylmethane derivative is greater than or equal to 0.6.
摘要:
A photostable cosmetic screening composition and process for protection of the human epidermis against UV rays of wavelengths between 280 and 380 nm, the composition having, in a cosmetically acceptable vehicle containing at least one fatty phase, 1 to 5% by weight of a dibenzoylmethane derivative and at least 1% by weight of an alkyl .beta.-.beta.-diphenylacrylate or .alpha.-cyano-.beta.-.beta.-diphenylacrylate of formula (I), the mole ratio of the compound of formula (I) to the dibenzoylmethane derivative being not less than 0.8.
摘要:
The cosmetic use is described, for use as a UV filter, of dibenzoylmethane diorganopolysiloxanes having either formula: ##STR1## where R is C.sub.1 -C.sub.10 alkyl, phenyl or 3,3,3-trifluoropropyl, B is R or A, r=0-200, s=0-50, or formula: ##STR2## where u=1-20, t=0-20 and t+u.gtoreq.3. A and/or B represent an alkylene or alkyleneoxy-dibenzoylmethane which may be substituted.
摘要:
A compound of formula: ##STR1## wherein: x is oxygen, sulphur or an --NR--group, wherein R is hydrogen or a C.sub.1 -C.sub.6 alkyl group;R.sub.1 is hydrogen or a C.sub.1 -C.sub.6 alkyl, a C.sub.1 -C.sub.6 alkoxy, an -- SO.sub.2 Cl or -- SO.sub.2 NR.sub.4 R.sub.5 group wherein R.sub.4 and R.sub.5, which may be identical or different, are hydrogen, a C.sub.1 -C.sub.12 alkyl or C.sub.2 -C.sub.4 hydroxyalkyl group, or R.sub.1 is an --SO.sub.3 H or --SO.sub.3.sup..crclbar. M.sup..sym. group wherein M is potassium or sodium or an N(R.sub.6).sub.4.sup..sym. group, wherein each R.sub.6, which may be identical or different, is hydrogen, a C.sub.1 -C.sub.6 alkyl or C.sub.2 -C.sub.4 hydroxyalkyl group;R.sub.2 is hydrogen, a C.sub.1 -C.sub.6 alkyl or C.sub.1 -C.sub.6 alkoxy group, or R.sub.1 and R.sub.2 together are a methylenedioxy group;R.sub.3 is hydrogen or an --SO.sub.3 H, --SO.sub.3.sup..crclbar. M.sup..sym. or --SO.sub.2 NR.sub.4 R.sub.5 group wherein M, R.sub.4 and R.sub.5, which may be the identical or different to the M, R.sub.4 and R.sub.5 groups respectively above, have the same meanings as above is useful in cosmetics for protection against ultra-violet rays.
摘要翻译:下式的化合物:其中:x是氧,硫或-NR-基,其中R是氢或C1-C6烷基; R 1是氢或C 1 -C 6烷基,C 1 -C 6烷氧基,-SO 2 Cl或-SO 2 NR 4 R 5基团,其中R 4和R 5可以相同或不同,是氢,C 1 -C 12烷基或C 2 -C 4羟基烷基, 或R 1是-SO 3 H或-SO 3( - )M(+)基团,其中M是钾或钠或N(R 6)4(+)基团,其中每个可以相同或不同的R 6是氢, C 1 -C 6烷基或C 2 -C 4羟烷基; R2是氢,C1-C6烷基或C1-C6烷氧基,或R1和R2一起是亚甲二氧基; R 3为氢或-SO 3 H,-SO 3( - )M(+)或-SO 2 NR 4 R 5基团,其中M,R 4和R 5可以与上述M,R 4和R 5基团相同或不同,具有相同含义 如上所述在化妆品中可用于防紫外线。