Process for cleaning vehicles and composition therefor

Abstract

Abstract 1. Process for cleaning vehicles, by putting into operation, in an acid medium, notably at a pH less than 3, in the presence of at least one surface-active agent, preferably non-ionic or anionic, notably at ordinary temperature, an effective quantity of a mono- or dialkylphosphoric ester the alkyl group or groups of which each contain from one to three carbon atoms, characterized by the fact that simultaneously an effective quantity of at least one compound chosen from the alkanephosphonic acids and their esters with the formula : see diagramm : EP0027083,P5,F3 in which R1 is an alkyl radical containing from one to eight carbon atoms, possibly substituted by at least one of the substituents of the group containing the halogens, the hydroxyl radical, other phosphonic groups and amino groups with the formula : see diagramm : EP0027083,P6,F1 in which each of R2 and R3 , which can be identical or different from one another, represents a hydrogen atom or the significances of R1 , and each of R4 and R5 , which are identical or different from one another, represents a lower alkyl radical containing from one to four carbon atoms, or a hydrogen atom, is put into operation.

Inventors

• 👤 Joseph Schapira
• 👤 Victor Ken
• 👤 Patrick Hilaire
• 👤 Alain Erkiet

Bibliographic Details