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    • 4. 发明申请
    • A COSMETIC COMPOSITION
    • 化妆品组合物
    • WO2010020668A1
    • 2010-02-25
    • PCT/EP2009/060754
    • 2009-08-20
    • UNILEVER NVUNILEVER PLCHINDUSTAN UNILEVER LIMITEDGADGIL, Vijay, RamchandraGAURAV, KumarKUNJUPILLAI, Balu
    • GADGIL, Vijay, RamchandraGAURAV, KumarKUNJUPILLAI, Balu
    • A61K8/35A61Q17/04
    • A61Q17/04A61K8/368A61K8/40A61K8/416
    • The present application relates to a composition which includes water-soluble 1,3-diketone sunscreens, more particularly, water-soluble dibenzoylmethane sunscreens, where the sunscreens exhibit relatively low photodegradation; and a method for reducing the photodegradation of the water-soluble 1,3-diketone sunscreens. It is an object of the present application to provide a composition, which includes a water-soluble 1,3-diketone sunscreen, where the photodegradation of 1,3-diketone sunscreen is relatively low. The present inventors have found that water-soluble dibenzoylmethanes too suffer from the problem of photodegradation. It has been found that use of conventional stabilizers do not provide adequate stability. It has also been found that the stability of water-soluble 1,3-diketones is affected in the presence of conventional emulsifiers/surfactants, which are often included in cosmetic compositions.
    • 本申请涉及包含水溶性1,3-二酮防晒剂,更具体地说是水溶性二苯甲酰甲烷防晒剂的组合物,其中防晒剂显示相对低的光降解; 以及降低水溶性1,3-二酮防晒剂的光降解的方法。 本申请的目的是提供一种组合物,其包含水溶性1,3-二酮防晒剂,其中1,3-二酮防晒剂的光降解相对较低。 本发明人发现,水溶性二苯甲酰甲烷也遭受光降解的问题。 已经发现使用常规的稳定剂不能提供足够的稳定性。 还已经发现,在常规的乳化剂/表面活性剂的存在下,水溶性1,3-二酮的稳定性受到影响,这常常包括在化妆品组合物中。