Production of nanoscale ultraviolet absorbers
作者： Herzog Bernd , ミュラー，シュテファン , ヘルツォーク，ベルント , Mueller Stefan
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摘要: PROBLEM TO BE SOLVED: To provide a method for preparing new formulations of ultraviolet (UV) absorbers, and using the same in sunscreen compositions.SOLUTION: In preparation method, an insoluble organic UV absorber coarse particle form is ground within grinding apparatus comprising yttrium-stabilized zirconium oxide beads, presence alkyl polyglucoside having formula CHO(CHO)H, where n integer ranging from 8 to 16 x mean polymerization level glucoside moiety (CHO) ranges 1.4 1.6, or ester thereof antifoam agent as dispersing auxiliary, into ultrafine particles size 0.01 2.0 μm.SELECTED DRAWING: None
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