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Process for the photostabilisation of sunscreens derived from dibenzoylmethane by an insoluble organic filter
Process for the photostabilisation of sunscreens derived from dibenzoylmethane by an insoluble organic filter
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机译:通过不溶性有机滤光剂对二苯甲酰甲烷制得的防晒霜进行光稳定化的方法
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摘要
A process for improving UV stability of at least one dibenzoylmethane derivative comprises addition of at least one insoluble organic UV filter in micronized form with average particle size 0.01-2 microns (preferably 0.03-1.0 microns) which can be obtained by grinding insoluble organic filter with larger particle size in presence of surfactant. An Independent claim is also included for use of insoluble organic UV-filter, in micronized form, in preparation of cosmetic or dermatological composition containing at least one dibenzoylmethane derivative, to improve UV-stability of this component.
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