7 results about "Merocyanine" patented technology

The invention therefore relates to the use of (i) one or more merocyanine(s) of formula (3) below and also the E / E or E / Z geometric isomer forms thereof, and the tautomers thereof, the salts thereof, and the solvates thereof such as hydrates, in which formula (3): A is -O- or -NH; R is a C1-C22 alkyl group, a C2-C22 alkenyl group, a C2-C22 alkynyl group, a C3-C22 cycloalkyl group or a C3-C22 cycloalkenyl group, it being possible for said groups to be interrupted by one or more O; for (photo)stabilizing (ii) resveratrol, a derivative thereof and also the geometric isomer forms thereof, the salts thereof and the solvates thereof such as hydrates, or mixtures thereof.

The invention provides a composition, a resin composition, a liquid composition, a dye compound and an optical material. The composition contains a dye represented by formula 1 and a compound selected from the group consisting of benzotriazole compounds, triazine compounds, benzophenone compounds, merocyanine compounds, cyanine compounds, acrylate compounds, and benzoxazinone compounds. And at least one ultraviolet absorber selected from the group consisting of a benzoxazole compound and a benzodithiol compound. In formula 1, R1 and R2 each independently represent an alkyl group or an aryl group, R3, R4, R5, and R6 each independently represent a hydrogen atom or a substituent, and R5 and R6 may be bonded to each other to form a 6-membered ring.

Use of a merocyanin for photostabilizing resveratrol and / or one of its derivatives. The invention therefore relates to the use of (i) one or more merocyanins of the following formula (3) and their isomeric geometric forms E / E or E / Z, and their tautomers, salts, and solvates such as hydrates: [Formula 3] Formula 3 wherein: A is –O- or –NH; R is a C1-C22 alkyl group, a C2-C22 alkenyl group, a C2-C22 alcinyl group, a C3-C22 cycloalkyl group, or a C3-C22 cycloalkenyl group, said groups being able to be interrupted by one or more O groups, for (photo)stabilizing (ii) resveratrol, one of its derivatives, and their isomeric geometric forms, salts, and solvates such as hydrates or their mixtures.

A cosmetic or dermatological composition comprising a merocyanin, a triazine UV filter, and a polysaccharide modified by hydrophobic chains. The present invention relates to a composition, preferably cosmetic or dermatological, comprising: a) at least one merocyanin of the following formulas (1) or (2): [Formula 1] and [Formula 2]; b) at least one triazine UV filter; and c) at least one polysaccharide modified by hydrophobic chains. The present invention also relates to the use of at least one such merocyanin of formula (1) or (2) to reduce staining of fabrics, particularly clothing, after washing.

Use of a merocyanin for photostabilizing resveratrol and / or one of its derivatives. The invention therefore relates to the use of (i) one or more merocyanins of the following formula (3) and their isomeric geometric forms E / E or E / Z, and their tautomers, salts, and solvates such as hydrates: [Formula 3] Formula 3 wherein: A is –O- or –NH; R is a C1-C22 alkyl group, a C2-C22 alkenyl group, a C2-C22 alcinyl group, a C3-C22 cycloalkyl group, or a C3-C22 cycloalkenyl group, said groups being able to be interrupted by one or more O groups, for (photo)stabilizing (ii) resveratrol, one of its derivatives, and their isomeric geometric forms, salts, and solvates such as hydrates or their mixtures.

The present invention relates to a cosmetic or dermatological composition comprising at least one aqueous phase, at least one merocyanine of formula (3), which will be defined in detail hereinbelow, and at least one compound of formula (I) or (I'), (I), (I') as described hereinbelow, and / or optical isomers thereof, geometrical isomers thereof, and also organic or mineral acid or base salts thereof, and / or solvates thereof such as hydrates.

The present invention relates to an aqueous cosmetic or dermatological composition comprising: a) at least one merocyanine corresponding to the following formula (3) and also the geometric isomer form thereof, in particular E / E-or E / Z-geometric isomer form: formula (I) wherein: A is-O-or-NH-; r is a C1-C22 alkyl group, a C2-C22 alkenyl group, a C2-C22 alkynyl group, a C3-C22 cycloalkyl group or a C3-C22 cycloalkenyl group, said group being possibly intercalated with one or more O; the amount is less than 3% by weight relative to the total weight of the composition; and b) at least one water-soluble organic UV screening agent.