C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
C11D 3/60 (2006.01) C11D 1/74 (2006.01) C11D 1/82 (2006.01) C11D 1/825 (2006.01) C11D 3/16 (2006.01) C11D 3/37 (2006.01)
Patent
CA 2144781
Disclosed are detergent compositions comprising a suds inhibiting amount of a synergistic antifoaming combination, and preferably further comprising a high- sudsing surfactant such as an amine oxide surfactant. The antifoaming combination consists of a carboxylated poly(oxyalkylated) alcohol cosurfactant and a silicone antifoaming agent in a weight ratio of from about 1:50 to about 1000:1. Both individual elements of the antifoaming combination are known. The carboxylated poly(oxyalkylated) alcohol has the formula (see fig. I) wherein R is a hydrocarbon-containing group having from about 6 to about 18 carbon atoms; each R' is independently selected from the group of hydrogen, methyl and carboxylic acid-containing groups having from 1 to 6 carbon atoms wherein the cosurfactant contains at least one such carboxylic acid-containing group; M is selected from the group of hydrogen and sulfate; x is a number from about 3 to about 75.
Dimock Stratton Llp
The Procter & Gamble Company
LandOfFree
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