PROBLEM TO BE SOLVED: To provide an alkoxysilane containing a sulfur atom and a specific hydrophilic group in the molecule, to provide a hydrophilization-treated aqueous composition using the same and to provide a cosmetic, a skin external preparation, a coating material and an ink each containing them.SOLUTION: The alkoxysilane contains a sulfur atom and a hydrophilic group in the molecule of the following formula (1) or (2) [each of R1 and R2 represent a monovalent hydrocarbon group R3 represents a divalent hydrocarbon group R4 represents a divalent hydrocarbon group R5 represents a hydrogen atom, a monovalent hydrocarbon group or an acyl group R6 represents a hydrogen atom or a hydroxy group R7 represents a hydrogen atom or a methyl group a represents an integer of 1-3 and b and c represents 0 or either one of b and c represents an integer of 1 or greater].COPYRIGHT: (C)2014,JPO&INPIT【課題】分子内に硫黄原子及び特定の親水性基を含有するアルコキシシラン、これを用いた親水化処理水系組成物、更にそれらを含有する化粧料、皮膚外用剤、塗料及びインクを提供する。【解決手段】下式(1)又は(2)の分子内に硫黄原子及び親水性基を含有するアルコキシシラン。[R1、R2は一価炭化水素基、R3は二価炭化水素基、R4は二価炭化水素基、R5は水素原子、一価炭化水素基、又はアシル基、R6は水素原子又はヒドロキシ基、R7は水素原子又はメチル基、aは1~3、b,cは0又は一方が1以上の整数を表す。]【選択図】なし
