Stabilization of sunscreens in cosmetic compositions
    42.
    发明授权
    Stabilization of sunscreens in cosmetic compositions 有权
    化妆品组合物中防晒剂的稳定化

    公开(公告)号:US06869598B2

    公开(公告)日:2005-03-22

    申请号:US10385914

    申请日:2003-03-11

    CPC classification number: A61Q17/04 A61K8/347 A61K8/35 A61K8/37 A61K8/375

    Abstract: Cosmetic compositions containing organic sunscreens along with a 4-substituted resorcinol derivatives of general formula I exhibit improved storage stability and oxidative stability: where each R1 and R2, independently, represents a hydrogen atom, —CO—R (acyl group), —COO—R CONHR; where R represents saturated or unsaturated, linear, branched or cyclic C1-C18 hydrocarbon groups; and R3 represents (1) an alkyl group, having from 1 to 18 carbon atoms, preferably having from 2 to 12 carbon atoms, with or without substitution of one or more hydrogen atoms of a linear alkyl group with a methyl or ethyl group; e.g., R3 constitutes linear or branched chain alkyls, or (2) a group of the general formula formula (II) Where X is preferably H, n is 0 to 3 and the dashed lines represents an optional double bond.

    Abstract translation: 含有有机防晒剂的化妆品组合物与通式I的4-取代间苯二酚衍生物具有改进的储存稳定性和氧化稳定性:其中每个R 1和R 2独立地表示氢原子,-CO-R(酰基),-COO- R CONHR; 其中R表示饱和或不饱和的直链,支链或环状的C 1 -C 18烃基; 和R 3表示(1)具有1至18个碳原子,优选具有2至12个碳原子的烷基,具有或不具有直链烷基的一个或多个氢原子与甲基或乙基的取代; 例如,R 3构成直链或支链烷基,或(2)通式(II)的基团其中X优选为H,n为0至3,虚线表示任选的双键。

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