Abstract:
4,4-Diarylbutadienes of the formula I, where the variables have the meanings explained in the description, are used as photostable UV filters in cosmetic and pharmaceutical preparations to protect the human skin or human hair from the sun's rays, alone or together with compounds which absorb in the UV region and are known per se for cosmetic and pharmaceutical preparations.
Abstract:
A cosmetic or pharmaceutical composition which comprises at least one polymer or copolymer which is obtainable by free-radical emulsion or suspension polymerization in the presence of at least one chain-transfer reagent, has a glass transition temperature above -35.degree. C. and a content of organic volatile constituents .ltoreq.0.5% by weight, and is at least 20% by weight composed of a (meth)acrylic ester.
Abstract:
A method of using compounds of formula I ##STR1## in which the C.dbd.C double bond is present in E and/or Z configuration and the variables have the following meanings:R.sup.1 denotes COOR.sup.5, COR.sup.5, CONR.sup.5 R.sup.6, CN, O.dbd.S(--R.sup.5).dbd.O, O.dbd.S(--OR.sup.5).dbd.O, R.sup.7 O--P(--OR.sup.8).dbd.O;R.sup.2 denotes COOR.sup.6, COR.sup.6, CONR.sup.5 R.sup.6, CN, O.dbd.S(--R.sup.6).dbd.O, O.dbd.S(--OR.sup.6).dbd.O, R.sup.7 O--P(--OR.sup.8).dbd.O;R.sup.3 denotes hydrogen, an optionally substituted aliphatic, cycloaliphatic, araliphatic or aromatic radical having in each case up to 18 carbon atoms;R.sup.4 denotes an optionally substituted aromatic or heteroaromatic radical containing from 5 to 12 ring atoms;R.sup.5 toR.sup.8 independently denote hydrogen, an open-chain or branched-chain aliphatic, araliphatic, cycloaliphatic or optionally substituted aromatic radical containing in each case up to 18 carbon atoms,where the variables R.sup.3 to R.sup.8 may also form, together with the carbon atoms to which they are attached, a 5-membered or 6-membered ring, which may be anellated if desired,as UV filters, particularly UV-A filters, in cosmetic and pharmaceutical formulations for the protection of the human skin or human hair from solar radiation, alone or together with compounds known per se in cosmetic and pharmaceutical formulations and capable of absorbing radiation in the UV range.
Abstract:
A process for the preparation of low-hydrazine polymers based on basic vinyl monomers by free-radical solution polymerization in aqueous medium in the presence, as compound which forms free radicals, of an azo compound which has alkoxycarbonyl groups on the carbon atoms adjacent to the azo group.
Abstract:
The invention provides a conjugate comprising a hyperbranched polymer covalently bonded to at least three UV absorbing chromophores having an UV absorption maximum λmax≧270 nm.The conjugate is an effective and safe sunscreen which can advantageously be used in cosmetic compositions.
Abstract:
The present invention relates to crosslinked, water-soluble or water-dispersible polyurethanes of A) at least one water-soluble or water-dispersible polyurethane prepolymer having terminal isocyanate groups of a) at least one compound having a molecular weight in the range from 56 to 300 which contains two active hydrogen atoms per molecule, b) at least one polymer containing two active hydrogen atoms per molecule, c) at least one compound which contains two active hydrogen atoms and at least one ionogenic or ionic group per molecule, d) at least one diisocyanate, B) at least one polymer containing groups which are reactive toward isocyanate groups, chosen from hydroxyl, and primary and secondary amino and/or carboxyl groups, or the salts thereof.
Abstract:
The invention relates to the use of resveratrol, a derivative, metabolite or analogue thereof for promoting the wellness state of a mammal or for changing gene expression profiles in older adult mammals towards conformity with expression profiles found in younger adult mammals as well as to their use for the manufacture of corresponding nutraceutical compositions.
Abstract:
The invention provides a conjugate comprising a hyperbranched polymer covalently bonded to at least three UV absorbing chromophores having an UV absorption maximum λmax>270 nm.The conjugate is an effective and safe sunscreen which can advantageously be used in cosmetic compositions.
Abstract:
The invention relates to a method of enhancing the photostability of an encapsulated cinnamate derivative in a topical sunscreen composition which comprises introducing into such sunscreen composition an effective amount of at least one additional non-encapsulated sunscreen.
Abstract:
Isoindolinone derivatives of the formula I, in which the variables have the following meanings: R1 is hydrogen, COOR4, COR4, CONR4R5, CN, C1-C20-alkyl, C2-C10-alkenyl, C3-C10-cycloalkyl, C3-C10-cycloalkenyl, aryl or heteroaryl, substituted or unsubstituted; R1 and R2 together are C7-C10-bicycloalkyl or C7-C10-bicycloalkenyl; R3 is hydrogen, C1-C20-alkyl, C2-C10-alkenyl, C3-C10-cycloalkyl, C3-C10-cycloalkenyl, C1-C12-alkoxy, C1-C20-alkoxycarbonyl, C1-C12-alkylamino, C1-C12-dialkylamino, aryl or heteroaryl, substituted or unsubstituted, substituents which confer solubility in water, selected from the group consisting of carboxylate, sulfonate or ammonium radicals; R4 and R5 independently of one another are hydrogen, C1-C20-alkyl, C2-C10-alkenyl, C3-C10-cycloalkyl, C3-C10-cycloalkenyl; aryl or heteroaryl, substituted or unsubstituted; are used as stabilizers for organic materials.