Adducts of alcohols and olefin oxides, suitable for reducing the interfacial surface tension of oily phases with respect to water
AssigneeChemische Werke Huls Aktiengesellschaft
InventorsKurt Kosswig, Ekkehard Wienhoefer
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Abstract
Compounds of the following formula are suitable for reducing the interfacial surface tension of oily phases with respect to water: ##STR1## wherein z is 1 or 2, R, for z=1, is alkyl, aralkyl, or alkylaryl of 8-22 carbon atoms in the alkyl chain, or hydroxyalkyl of 2-22 carbon atoms, and, for z=2, is (aryl)alkylene of 4-18 carbon atoms, R' and R" each independently is hydrogen or C.sub.1 -C.sub.20 -alkyl wherein R' and R" are not simultaneously hydrogen and R' and R" together have 8-20 total carbon atoms, x is 10-40 and y is 1.2-5.
Claims11
A compound of the formula ##STR7## wherein z is 1 or 2,
- R is, for z=1, alkyl, aralkyl, or alkylaryl, each of 8-22 carbon atoms in the alkyl chain, or hydroxyalkyl of 2-22 carbon atoms, and, for z=2, alkylene or arylalkylene, each of 4-18 carbon atoms in the alkyl chain, wherein, aryl in each case is phenyl or phenyl substituted by methoxy, acetoxy, cyano, nitro, chloro or fluoro,
- R' and R" each independently is hydrogen or C.sub.1 -C.sub.20 -alkyl wherein R' and R" are not simultaneously hydrogen and R' and R" together have a total of 8-20 carbon atoms,
- x is 10-40, and
- y is 1.2-5,
- said compound being essentially water insoluble, possessing essentially no cloud point and being effective to lower the interfacial surface tension of an oil phase with respect to water when present in the oil phase in a small concentration.
Dependencies are inferred from the claim text.