| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an anionic surfactant composition containing a sulfate ester salt excellent in both foamability and defaomabity in a high concentration, and being excellent in flowability and appearance. <P>SOLUTION: The anionic surfactant composition contains 60 to 80 mass% of (a) a sulfate ester salt represented by formula (a1): RO-(PO)<SB POS="POST">n</SB>-SO<SB POS="POST">3</SB>M, and 0.1 to 3 mass% of (b) a compound represented by formula (b1): ZO-(PO)<SB POS="POST">n1</SB>-SO<SB POS="POST">3</SB>M (provide that in the formula (b1), the content of a compound of n1 of 2 and the content of a compound of n1 of 3 are each selected from 0 to 2.5 mass%), and (c) water. In the formula (a1), R is an 8-12C linear or branched alkyl group or alkenyl group; PO is a propyleneoxy group; n is an average addition molar number and 0<n≤1; and M is an alkaline metal or NH<SB POS="POST">4</SB>. In the formula (b1), Z is a hydrogen atom or SO<SB POS="POST">3</SB>M; PO is a propyleneoxy group; n1 is an integer of 1 to 4; and M is an alkaline metal or NH<SB POS="POST">4</SB>. <P>COPYRIGHT: (C)2013,JPO&INPIT |
