Compositions
AssigneeGivaudan SA
InventorsVenkateswara Kumar VEDANTAM, Janardhanan Mahalingam, Jee Ting Nicholas Wong, Markus Gautschi
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Abstract
A surfactant composition comprising: (a) a surfactant material; (c) a polyethylene imine of the general formula —(CH2CH2NH)n—; and (d) an aromatic, monoethylenically-unsaturated carboxylic acid ester of the formula where R1 is selected from the group consisting of hydrogen, C1-C16 alkyl, C1-C16 alkoxy, aryl and substituted aryl, and R2 is selected from the group consisting of aryl, substituted aryl and C6-C16 alkyl; the materials (b)-(d) each having an odour value of 10,000 maximum. The problem of rancidity, commonly encountered when low-grade surfactant materials are used, especially in soaps, is considerably reduced.
Claims14
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A method of reducing rancidity in a surfactant material prone thereto, comprising the addition thereto of a composition consisting essentially of
- a polyethylene imine of the general formula —(CH2CH2NH)n— wherein n has value such that the polyethylene imine has a molecular weight of from 800 to 2 mio. Da.;
- ;
- and
- an aromatic, mono ethylenically-unsaturated carboxylic acid ester of the formula
- where R1 is selected from the group consisting of hydrogen, C1-C16 alkyl, C1-C16 alkoxy, aryl and substituted aryl, and R2 is selected from the group consisting of aryl, substituted aryl and C6-C16 alkyl;
- and optionally, a fragrant aldehyde,
- the polyethylene imine, the aromatic, monoethylenically-unsaturated carboxylic acid ester and, when present, the fragrant aldehyde, each having an Odour Value of 10,000 maximum.
Dependencies are inferred from the claim text.