Nonionic gemini surfactants

Details Nonionic gemini surfactants Nonionic gemini surfactants

1997-11-07

1999-08-31

Lovering, Richard D.

Cleaning compositions for solid surfaces, auxiliary compositions

Cleaning compositions or processes of preparing

Liquid composition

510421, 510535, 516 68, 516 76, 516916, 516920, 568583, 568607, 568606, 568619, 544401, 564123, 564201, C11D 172, C11D 1722, C07C 43205, C07D24104

Patent

active

059453931

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 C.sub.6 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 a C.sub.1 -C.sub.10 alkyl group, --O--R.sub.5 --O--, or aryl, e.g. phenyl, and (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, wherein a plus b is at least one, and the EO and PO alkyl or alkylaryl.

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patent: 5643854 (1997-07-01), Li et al.
patent: 5710121 (1998-01-01), Tracy et al.

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