| 摘要 |
<p>LOW SUDSING DETERGENT COMPOSITIONS The invention relates to novel suds-depressants and to detergent compositions containing them, (a) a nonionic, zwitterionic or anionic detergent or a mixture thereof, and (b) a sudsdepressing surface active agent having the general formula R - Z - (AO)? - Ac, wherein R is a hydrophobic group comprising between 8 and 24 carbon atoms and being free of ionic or potentially ionic moieties; Z is a direct or a heteroatom linkage; AO is an alkylene oxide unit comprising up to 4 carbon atoms; Ac is an acyl moiety comprising between 1 and 10 carbon atoms being attached to the terminal alkylene oxide unit through an ester linkage; and ? represents the average degree of alkoxylation of the surface active agent; wherein the ratio of the weight of alkoxylated components of the sudsdepressant with HLB values of less than 7.5 to the weight of detergent (a) is at least 1:1000.</p> |
