| 摘要 |
<p>A liquid laundry detergent formulation is desribed including a surfactant, a polycarboxylate builder and 2-methyl-1,3-propanediol as a carrier solvent. A preferred builder comprises a non-hydrophobically modified, acrylic/polyether comb-branched copolymer, wherein the polyether portion comprises moieties derived from at least two constituents selected from ethylene oxide, propylene oxide, and butylene oxide. Preferably, the comb-branched copolymer is made with a process selected from: (i) copolymerizing an unsaturated macromonomer with at least one ethylenically unsaturated comonomer selected from carboxylic acids, carboxylic acid salts, hydroxyalkyl esters of carboxylic acids, and carboxylic acid anhydrides, and (ii) reacting a carboxylic acid polymer and polyether prepared by polymerizing a C2-C4 epoxide, wherein the carboxylic acid polymer and the polyether are reacted under conditions effective to achieve partial cleavage of the polyether and esterification of the polyether and cleavage products thereof by the carboxylic acid polymer.</p> |
