Patent ID: 6946037

Claim:
A method of removing silicone-containing residues from a surface comprising contacting a surfactant cleaning solution with a surface to be cleaned, the cleaning solution comprising a hydrophilic component, the hydrophilic component comprising: a) at least one non-ionic surfactant having a general formula (I) R 1 —(OC 2 H 4 ) n —OH (I) in which R 1 is a straight-chain or branched alkyl or alkenyl radical having from 8 to 22 carbon atoms and a mean degree of ethoxylation n is from 14 to 40; b) at least one non-ionic surfactant having a general formula (III) R 3 —(OC 2 H 4 ) r —OH (III) in which R 3 is a straight-chain or branched alkyl or alkenyl radical having from 8 to 22 carbon atoms and a mean degree of ethoxylation r is from 1 to 7; and c) at least one nonionic surfactant having a general formula (II) in which R 2 is a straight-chain or branched alkyl or alkenyl radical having from 8 to 22 carbon atoms, Z x and Z y are hydroxyl groups, and a mean degree of ethoxylation (x+y) is from 5 to 25, wherein, when x or y is 0, the corresponding Z x or Z y is H.