| 摘要 |
A water soluble salt of an aliphatic polycarboxylic acid useful as a detergent builder, and having the formula: [X(l-m-n)YmZn]p WHEREIN EACH OF M AND N CAN BE ZERO OR A POSITIVE NUMBER, IT BEING PROVIDED THAT THE SUM OF M AND N IS ALWAYS LESS THAN ONE; P IS AN INTEGER THE UPPER LIMIT OF WHICH IS DETERMINED BY THE SOLUBILITY OF THE SALTS IN AN AQUEOUS SYSTEM; X is derived from the monomer 1-butene-2,3,4-tricarboxylic acid and Y and Z are each derived from a monoethylenically unsaturated monomer containing 1 to 3 substituents selected from the class consisting of carboxy, lower carboxyalkyl, lower alkyl, lower chloroalkyl, hydroxy, non-gem. dihydroxy, lower acyloxy, chloro, and lower alkoxy, it being provided that any one of the carboxy groups can be esterified with a lower aliphatic radical. Detergent compositions containing water soluble salts of the aliphatic polycarboxylic acid aforesaid are described. |
