Patent ID: 7208458
Filing Date: 2007-04-24
Classification: C11D

Abstract:
1. A free-flowing surfactant composition consisting of a) 30 to 80 weight percent of a nonionic surfactant consisting of fatty alcohol alkoxylate and optionally a compound selected from the group consisting of alkoxylated fatty acid alkyl ester, polyethoxylated sorbitol ester, polyethoxylated fatty acid amide, polyhydroxy fatty acid amide, alkylglycoside, and mixtures thereof, b) 10 to 30 weight percent amorphous silica having an internal surface area ranging from 450 to 500 m 2 /g, c) a carrier material and d) 0 to 45 weight percent of an assistant, wherein a ratio of nonionic surfactant to amorphous silica ranges from 2:1 to 2.8:1.