Surface active lactams
AssigneeISP Investments Inc.
InventorsRobert B. Login, Ratan K. Chaudhuri, Rama K. Haldar, Mohamed M. Hashem, Michael W. Helioff, David J. Tracy
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Abstract
The invention relates to properties and uses of N-hydrocarbon substituted lactams, particularly N-alkyl substituted lactams having the formula ##STR1## wherein R' is a hydrophobic radical such as linear or branched chain alkyl group containing from 8 to 27 carbon atoms, most preferably micelle forming pyrrolidones having 12 to 16 carbon atoms in the R' group. The invention particularly relates to the uses of the N-hydrocarbon substituted lactams which involve surfactant properties, such as solubility, wetting, viscosity building, emulsifying and/or complexing properties.
Claims2
A composition comprising an N-hydrocarbon-substituted lactam having the formula ##STR8## wherein n is an integer having a value of from 1 to 3 and R' is a hydrophobic radical consisting of a linear, branched chain or cyclic alkyl radical containing from 12 to 22 carbon atoms;
- a naphthyl or alkyl substituted naphthyl radical containing from 10 to 26 carbon atoms and an alkylphenyl or phenylalkyl radical containing from 9 to 26 carbon atoms;
- which lactams are capable of forming micelles in neutral, basic or acidic aqueous media and have a critical micelle concentration of between about 1.times.10.sup.-3 and about 5.times.10.sup.-5 moles per liter and a phenolic compound.
Dependencies are inferred from the claim text.