Nonionic gemini surfactants

Details Nonionic gemini surfactants Nonionic gemini surfactants

1997-11-26

1998-09-22

Hertzog, Ardith

Cleaning compositions for solid surfaces, auxiliary compositions

Cleaning compositions or processes of preparing

Liquid composition

510421, 510423, 510433, 510479, 510480, 510492, 510497, 510498, 510499, 510500, 510501, 510506, 554101, 554102, 554116, 544399, C11D 172, C11D 1722, C11D 1755

Patent

active

058113843

ABSTRACT:
Novel nonionic gemini surfactants are extremely effective emulsifiers for oil-in-water emulsions that provide improved detergency at even low concentration levels. The surfactants are characterized by the formula: ##STR1## wherein R.sub.1 is independently H or a C.sub.1 to C.sub.22 alkyl, R.sub.2 is H or C.sub.1 to C.sub.22 alkyl and R.sub.3 is D.sub.1 --R.sub.4 --D.sub.1 or R.sub.4 --D.sub.1 --R.sub.4 wherein R.sub.4 is independently (PO).sub.b !--, --O--R.sub.5 --O--, or aryl, e.g. phenyl, and D.sub.1 is independently --O--, --S--, --S--S--, --SO.sub.2 --, --C(O)--, a polyether (PO).sub.b is a polyether group and Z is a C.sub.1 -C.sub.4 alkyl, or an alkylaryl or hydrogen wherein EO represents ethyleneoxy radicals, PO represents propyleneoxy radicals, a and b are numbers of from 0 to 100, a is preferably from about 0 to about 30 and b is preferably from about 0 to 10, and wherein a plus b is at least one.

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