Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – Specific organic component
Patent
1997-06-09
1998-12-08
Lieberman, Paul
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
Specific organic component
564 85, 568 23, 568 28, 568 48, 568332, 568609, C11D 1722, C07C 4311, C07C 4976, C07C31700, C07C32100
Patent
active
058469265
ABSTRACT:
A novel class of nonionic gemini surfactants and methods for their preparation consist of compounds with three hydrophilic heads and two lipophilic tails of the general formula: ##STR1## wherein R.sub.1 and R.sub.3 independently represents a C.sub.1 to C.sub.22 straight or branched chain alkyl, alkylene, aryl or alkylaryl, or hydrogen, with the proviso that both cannot be hydrogen; R.sub.2 represents a C.sub.1 to C.sub.5 straight or branched chain alkyl, alkylene or hydrogen, (Y) represents ##STR2## wherein R.sub.4 represents C.sub.1 to C.sub.3 alkyl or hydrogen and may be the same or different; X represents --(CH.sub.2).sub.a -- wherein a is a whole number of from 1 to 5; --S--, --S--S--, --SO.sub.2, --(CH.sub.2).sub.a SO.sub.2 (CH.sub.2).sub.a --,--O--, --C.dbd.O, or --CH.sub.2 --NR--CH.sub.2 -- wherein R is a C.sub.1 to C.sub.3 straight or branched chain alkyl, alkylene or hydrogen and x, y, and z are whole numbers of from about 6 to about 300. The surfactants exhibit excellent surface active functionality, low cmc and pC.sub.20 values and provide superior efficacies when combined with conventional single chain surfactants.
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Li Ruoxin
Tracy David James
Yang Jiang
Bell Craig M.
Hardee John R.
Lieberman Paul
Rhodia Inc.
Wood John Daniel
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