Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – Specific organic component
Patent
1997-11-26
1999-09-14
Gupta, Yogendra
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
Specific organic component
510467, 510492, 510494, 510501, 510506, 510536, 554 97, C11D 900, C11D 338, C11D 100, C11D 1000
Patent
active
059522909
ABSTRACT:
The present invention comprises a new, improved class of anionic gemini surfactants consisting of two hydrophilic groups and two hydrophobic moieties joined by a bridge that possess improved surfactant functionalities yet may be characterized as mild for use in personal care products and environmentally benign. These compounds may be represented by the general structural formula as follows: ##STR1## wherein R, R.sub.1, R.sub.2, and R.sub.3 are selected from the group consisting of straight or branched chain C.sub.1 to C.sub.22 alkyl, aryl or hydrogen, and each R moiety can be the same or different; R.sub.4 and R.sub.5 are selected from the group comprising a straight or branched chain C.sub.1 to C.sub.6 alkyl with the further proviso that when either is a C.sub.6 it may exist as a cyclohexyl ring; R.sub.6 and R.sub.7 are selected from the group consisting of straight or branched chain C.sub.2 to C.sub.6 alkyl or aryl with the further proviso that R.sub.6 and R.sub.7 may be the same or different and wherein X is selected from the group comprising --S--, --S--S--, --D.sub.1 --R.sub.8 --D-- or --R.sub.8 --D.sub.1 --R.sub.8 -- wherein R.sub.8 is a straight or branched chain C.sub.1 to C.sub.10 alkyl or aryl and D.sub.1 is selected from the group consisting of --O--, --S--, --S--S--, --SO.sub.2 --; Y is --PO.sub.4 or --SO.sub.3 and can be the same or different and Z is selected from the group consisting of Na, K, alkali or alkaline earth metals, ammonium, their salts and mixtures thereof.
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Li Ruoxin
Tracy David James
Bell Craig M.
Gupta Yogendra
Petruncio John M
Rhodia Inc.
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