C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
134/3
C11D 1/02 (2006.01) C11D 1/00 (2006.01) C11D 1/44 (2006.01) C11D 1/62 (2006.01) C11D 1/66 (2006.01) C11D 1/74 (2006.01) C11D 1/78 (2006.01) C11D 3/00 (2006.01)
Patent
CA 1063905
LOW SUDSING DETERGENT COMPOSITIONS Abstract of the Disclosure The invention relates to novel suds-depressants and to detergent compositions containing them, (a) a nonionic, zwitter- ionic or anionic detergent or a mixture thereof, and (b) a suds- depressing 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 suds- depressant with HLB values of less than 7.5 to the weight of detergent (a) is at least 1:1000.
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