Surfactants
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United States of America Patent
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Jun 23, 1998
Grant Date -
N/A
app pub date -
Feb 22, 1996
filing date -
Aug 23, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Surfactants of the general formula (I): Y.A.sup.1.OC.(HR)C.C(HR.sup.1).CO.A.(C.sub.m H.sub.2m O).sub.n.R.sup.2 or (II): Y.A.sup.1.OC.(HR)C.C(HR.sup.1).CO.A.(C.sub.m H.sub.2m O).sub.n.C.sub.p H.sub.2p.A.CO.(HR.sup.1)C.C(HR)CO.A.sup.1.Y; where R, R.sup.1, R.sup.2, A, A.sup.1, n, m, Y and p have defined meanings are effective in single phase aqueous surfactant compositions with high electrolyte loading, especially of or including alkali, particularly for hard surface cleaning applications. These surfactants do not need hydrotropes to give stable single phase compositions even with high electrolyte loadings and are resistant to hydrolytic degradation e.g. by strong alkali in such compositions.
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