Patent ID: 7018963

Claim:
A water-soluble surfactant composition comprising: (A) 10 to 90 wt % of at least one aliphatic diol selected from among compounds of formula (1) wherein R 1 and R 2 are each an alkyl of 1 to 5 carbons, and compounds of formula (2) wherein R 3 and R 4 are each an alkyl of 1 to 5 carbons, and (B) 10 to 90 wt % of at least one polyoxyalkylene alkyl ether having a hydrophilic-lipophilic balance of 8 to 19 selected from among compounds of formula (3) R 5 O(C 2 H 4 O) a (C 3 H 6 O) b (C 2 H 4 O) c (C 3 H 6 O) d H (3), wherein R 5 is an alkyl of 1 to 20 carbons, the letter a is an integer from 1 to 20, and b, c and d are each 0 or an integer from 1 to 20, and compounds of formula (4) R 5 O(C 3 H 6 O) w (C 2 H 4 O) x (C 3 H 6 O) y (C 2 H 4 O) z H (4), wherein R 5 is as defined above, the letter w is an integer from 1 to 20, and x, y and z are each 0 or an integer from 1 to 20; which composition, when prepared as a 0.1 wt % aqueous solution thereof, has a contact angle 30 seconds after droplet deposition of at most 60 degrees and a dynamic surface tension at 1 Hz and 10 Hz of at most 50 mN/m each.