Patent ID: 6693065
Filing Date: 2004-02-17
Classification: C11D

Abstract:
A detergent composition for industrial or household cleaning, which is non-foaming and stable in a highly alkaline NaOH medium, comprising, in a solution of a highly alkaline medium of at least about 13% of sodium hydroxide,25 to 45 parts by weight of a non-foaming detergent agent, 15 to 25 parts by weight of a stablizer, 30 to 60 parts by weight of alkenylsuccinic acid or anhydride, the non-foaming detergent agent being a compound of formulaR1(O-CH2-CH2)n-R2 in whichR1 is an alkyl chain of 8-20 carbon atoms, or an octylphenyl or nonylphenyl radical, n is from 8 to 15, R2 is an alkoxy radical of 3-5 carbon atoms, a poly (oxyalkylene) radical of formula: in whichR1-is an alkyl radical containing 1 or 2 carbon atoms, and p is from 1 to 10, a benzyloxy radical, or chlorine; the stabilizer being a phosphoric mono- or diester obtained by reaction of phosphorus pentoxide with an aliphatic alcohol containing from 4 to 12 carbon atoms; the alkenylsuccinic acid being a compound of formula where n is from 4 to 12, or an anhydride thereof.