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    WATER BASED CONCENTRATED PRODUCT FORMS OF OIL-SOLUBLE ORGANIC UV ABSORBERS
    2.
    发明申请
    WATER BASED CONCENTRATED PRODUCT FORMS OF OIL-SOLUBLE ORGANIC UV ABSORBERS 审中-公开

    公开(公告)号：US20200337974A1

    公开(公告)日：2020-10-29

    申请号：US16642999

    申请日：2018-08-28

    Applicant: BASF SE

    Inventor： Brigitte LINDEMANN ,  Stefan BUSCH ,  Frank PIRRUNG

    IPC: A61K8/49 ,  A61K8/46 ,  A61K8/362 ,  A61K8/37 ,  A61K8/60 ,  A61K8/81 ,  A61Q17/04

    Abstract: An aqueous polymer dispersion with an average particle size of less than 1000 nm comprising a) a polymer carrier prepared by heterophase radical polymerization of at least one ethyleni-cally unsaturated monomer in the presence of b) an oil-soluble organic UV absorber selected from the class of p-aminobenzoic acid derivatives; salicylic acid derivatives; benzophenone derivatives; diphenyl acrylate derivatives; benzofuran derivatives; polymeric UV absorbers, comprising one or more organosilicon radicals; cinnamic acid derivatives; camphor derivatives; s-triazine derivatives; trianilino-striazine derivatives; menthyl anthranilates; and benzotriazole derivatives; wherein the weight ratio of the oil-soluble organic UV absorber (b) to polymer carrier (a) is greater than 50 parts UV absorber per 100 parts of carrier; and c) a surfactant selected from c1) a nonionic surfactant selected from c11) the condensation product of a C6 to C18 fatty alcohol or C6 to C18 fatty acid and a mono- or disaccharide; and c2) an anionic surfactant selected from c21) sulfosuccinates and sulfosuccinamates; c22) fatty alcoholates; and c23) mixtures of phosphoric acid esters and fatty alcohols having from 6 to 18, preferably from 8 to 10, carbon atoms. The aqueous polymer dispersions show unexpectedly high sunscreen effects and a positive skin feeling. They have excellent anti-pollen, ant-dust and anti-oxidant performances in sun screen compositions.

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