Patent ID: 6852781

Claim:
A surfactant mixture comprising: (a) polymeric surfactant of the formula wherein represent a bond in a polymerizable or polymer chain; R, R 1 and R 2 are each independently hydrogen or alkyl of 1 to 4 carbon atoms; R 3 is at least one or more straight or branched alkylene-oxy groups, linked together and having 2 to 6 carbon atoms, or a straight or branched alkylene group having 12 to 20 carbon atoms; n is an integer from 2 to 10; and x,y and z are integers of at least 1, and (b) a compound of the formula wherein R is hydrogen or alkyl of 1-4 carbon atoms; R a is hydrogen or alkyl of 1 to 4 carbon atoms; and r is an integer of 2 to 20.