ng the formula (R(OC2 H4)y (OC4 H9)x OH where R is a C8-18 alkyl group and y is from about 3.5 to 10 and x is an integer from about 0.5 to 1.5; benzyl ethers of polyoxyethylene and condensates of alkyl phenols having the formula R(C6 H4) (OC2 H4)x OCH2 C6 H5 wherein R is a C6-20 alkyl group and x is an integer of from 5 to 40; and alkyl phenoxy polyoxyethylene ethanols having the formula R(C6 H4)