| 摘要 |
Personal care compositions comprising a polymer-bound UV absorber are described that provide enhanced properties, including customizable UV spectrum protection, broad-spectrum UV spectrum protection, water resistance, and labile UV stabilization. The polymer comprises anhydride functionality, such as maleic anhydride or a derivative thereof, and the UV absorber contains at least one hydroxyl, primary amine, or secondary amine group.;The personal care compositions may be used to treat and/or protect against burns, cancers, erythema, lentigo (“liver spots”), keratotic lesions, wrinkles, and cellular changes of the skin; and/or color changes, embrittlement, lack of luster, tangles, split ends, and/or unmanageability of the hair.; |
| 主权项 |
1. A personal care composition comprising at least one cosmetic or pharmaceutical ingredient selected from the group comprising: actives, anti-oxidants, colorants, defoamers, emollients, fragrances, humectants, labile UV absorbers, lower monoalcohols, lower polyols, oils, pigments, preservatives, propellants, surfactants, thickeners, UV absorbers, waxes, and blends thereof and in the form of an aerosol, conditioner, cream, dispersion, emulsion, foundation, gel, lotion, mist, moisturizer, mousse, paste, powder, roll-on, shampoo, stick, spray, suspension, or wipe and from 0.01% to about 100% of a polymer-bound UV absorber comprising at least one unit having the structure:wherein
(a) Chr-X is the residue of a UV absorber, wherein X is a constituent of said absorber and is selected from the list comprising O and NH; (b) R1 and R2 are independently selected from the group consisting of: hydrogen, halogen atoms, alkyl groups, alkenyl groups, cycloalkyl groups, and aryl groups; (c) R3 is selected from the group consisting of: hydrogen, metal atoms, and organic amine groups, and (d) wherein C— indicates a covalent bond to a polymer backbone or side chain. |
