Patent ID: 6660698
Filing Date: 2003-12-09
Classification: A62D,B01F,C09K,C11D,Y10S

Abstract:
A method for cleaning a surface contaminated with petroleum and/or petroleum-based product, comprising applying to said surface a composition comprising:(a) a nonionic primary surfactant comprising an ethoxylated sorbitol oleate; (b) a nonionic secondary surfactant selected from the group consisting of linear ethoxylated secondary alcohols, polyoxyethylene aryl ethers, ethoxylated sorbitan monolaureates, ethoxylated fatty acid amides, and ethoxylated fatty acids and containing about 7 moles to about 26 moles of ethylene oxide and comprising from about 20 to about 36 weight percent of said composition, and wherein said nonionic secondary surfactant is capable of stabilizing and solubilizing said nonionic primary surfactant such that said composition has a hydrophilic/lipophilic balance between about 12.0 and about 13.5; and (c) water.