Process for the preparation of a cosmetic active
    42.
    发明授权
    Process for the preparation of a cosmetic active 有权
    化妆品活性物质的制备方法

    公开(公告)号:US06911562B2

    公开(公告)日:2005-06-28

    申请号:US10887396

    申请日:2004-07-08

    CPC classification number: C07C37/002 C07C39/08

    Abstract: A process for the preparation of a compound of formula I: wherein R is a hydrogen or a C1-6 alkyl group which is straight chain, branched or cyclic, with or without an oxygen, nitrogen or sulphur heteroatom anywhere in the chain or ring by reacting a compound of formula II: with a source of hydrogen selected from either hydrogen or water in the presence of a mixture of at least two catalysts selected from nickel, raney nickel, and palladium, at a pH below 7.0 in a solvent medium comprising an alcohol having a carbon chain length of up to 3.

    Abstract translation: 制备式I化合物的方法:其中R是直链,支链或环状的氢或C 1-6烷基,具有或不具有氧,氮或硫 通过在选自镍,雷尼镍和钯的至少两种催化剂的混合物存在下,使式II化合物与选自氢或水的氢源反应,在链或环中的任意位置处的杂原子, 在包含碳链长度高达3的醇的溶剂介质中低于7.0。

    Sunscreen composition with polyhydroxy quaternary ammonium salts
    49.
    发明授权
    Sunscreen composition with polyhydroxy quaternary ammonium salts 有权
    具有多羟基季铵盐的防晒组合物

    公开(公告)号:US08496916B2

    公开(公告)日:2013-07-30

    申请号:US13477564

    申请日:2012-05-22

    CPC classification number: A61K8/416 A61Q17/04

    Abstract: A cosmetic composition is provided including a water-insoluble UV-A organic sunscreen agent having a max ranging from 330 to 380 nm, a UV-B organic sunscreen agent having a max ranging from 280 to 400 nm, and a photoprotective enhancing agent which is a polyhydroxy quaternary ammonium salt such as bis(dihydroxypropyl)dimethylammonium chloride, in a cosmetically acceptable carrier, and wherein the composition exhibits an SPF value which is 1 to 30 units higher than in the absence of the photoprotective enhancing agent.

    Abstract translation: 提供一种化妆品组合物,其包含最大范围为330-380nm的水不溶性UV-A有机防晒剂,最大范围为280-400nm的UV-B有机防晒剂,以及光保护增强剂 多羟基季铵盐,例如双(二羟丙基)二甲基氯化铵,在化妆品上可接受的载体中,并且其中所述组合物表现出比不存在光保护性增强剂时高出1至30单位的SPF值。

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