SURFACTANT COMPOSITION WITH LOW DYNAMIC SURFACE TENSION

摘要

Provided are surfactant compositions that are useful as wetting agents in aqueous formulations. The compositions comprise (a) a dialkyl sulfosuccinate compound of formula (I); and (b) a secondary alcohol alkoxylate compound of formula (II): wherein R, M, R1, R2, and n are as defined herein.

主权项

1. A composition comprising:
(a) a dialkyl sulfosuccinate compound of formula I: wherein R at each occurrence is C7-C9 alkyl, and M+ is a monovalent or divalent cation; and (b) a secondary alcohol alkoxylate compound of formula II-A; wherein R3 is selected from H and isopropyl and n is selected from 2, 3, 5 and 8;and the weight ratio of the dialkyl sulfosuccinate compound to the secondary alcohol alkoxylate compound is from 9:1 to 1:9, and wherein an aqueous solution of the dialkyl sulfosuccmate compound and the secondary alcohol alkoxylate compound has a dynamic surface tension of 45 mN/m or less at a concentration of 0.1. wt. % at a temperature of 21 to 22° C. and 15 bubble/second according to the maximum-bubble-pressure method.