Patent ID: 7482315
Filing Date: 2009-01-27
Classification: C09G,C11D

Abstract:
1. A process for cleaning a surface comprising applying at least two separate applications of aqueous liquids to a surface to be cleaned, at least one of the aqueous liquids applied to said surface comprising an aqueous solution having a pH of between 2.0 and 13 and comprising: (a) anionic surfactant comprising at least one of linear alkyl benzyl sulfonates, alpha olefin sulfonates, alkyl sulfates or secondary alkane sulfonates, (b) propoxylated ammonium cationic surfactant comprising a surfactant having the formula: wherein R, R 1 , and R 2 are independently selected from lower alkyl groups, R 3 comprises a polyoxyropylene chain, and X comprises an anion, and (c) an alkaline agent or an acidulating agent.