STEFAN MUELLER,ミュラー,シュテファン,BERND HERZOG,ヘルツォーク,ベルント
申请号:
JP2016093296
公开号:
JP2016188213A
申请日:
2016.05.06
申请国别(地区):
JP
年份:
2016
代理人:
摘要:
PROBLEM TO BE SOLVED: To provide a method for preparing new formulations of ultraviolet (UV) absorbers, and a method of using the same in sunscreen compositions.SOLUTION: In a preparation method, an insoluble organic UV absorber in a coarse particle form is ground within a grinding apparatus comprising yttrium-stabilized zirconium oxide grinding beads, in the presence of alkyl polyglucoside having the formula CnH2n+1O(C6H10O5)xH, where n is an integer ranging from 8 to 16 and x is the mean polymerization level of the glucoside moiety (C6H10O5) and ranges from 1.4 to 1.6, or an ester thereof and in the presence of an antifoam agent as a dispersing agent auxiliary, into ultrafine particles having a mean particle size ranging from 0.01 to 2.0 μm.SELECTED DRAWING: NoneCOPYRIGHT: (C)2017,JPO&INPIT【課題】紫外線(UV)吸収剤の新しい処方物の調製方法ならびにサンスクリーン(日焼け防止)組成物でのその使用方法の提供。【解決手段】粗粒状の不溶性有機UV吸収剤を、イットリウム安定化酸化ジルコニウム粉砕ビーズを含む粉砕装置内で、式CnH2n+1O(C6H10O5)xH(nは8~16の整数;xはグルコシド部分(C6H10O5)の平均重合度で、1.4~1.6の範囲)を有するアルキルポリグルコシド又はそのエステルの存在下及び分散剤助剤としての消泡剤の存在下に、0.01~2.0μmの平均粒子径を有する超微粒子に迄、粉砕する調製方法。【選択図】なし