prov:value
| - di-, or tri-carboxylic acid of 3 to 6 carbon atoms, a higher alkyl ether poly-lower alkoxy carboxylic acid of the formula R2 O(X)n YCOOH, wherein R2 is a C9-15 alkyl, n is from 4 to 12, and Y is CH2, C(O)R3 or ##STR2## wherein R3 is a C1-3 alkylene, or a lower alkyl mono-, di-, or tri-ester of phosphoric acid, wherein the lower alkyl is of 1 to 4 carbon atoms, or any mixture thereof.
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