Patent ID: 6544350
Filing Date: 2003-04-08
Classification: C11D

Abstract:
A method for cleaning fine stoneware tile comprising: applying an aqueous detergent concentrate to fine stoneware tile needing cleaning, wherein said aqueous detergent concentrate comprises at least one surfactant selected from the group consisting of nonionic, anionic, amphoteric/zwitterionic and mixtures thereof, and from 0.1 to 5 parts by weight of a quaternary alkoxylated amine cleaning enhancer having the general formula [R1, R2, R3, R4N]+Xâˆ’ where R1 is a straight-chain, optionally branched, alkyl radical, optionally containing multiple bonds and having from 8 to 22 carbon atoms, R2 is. â€”(CH2CHR5O)nâ€”R6 where R5=H, â€”CH3, or â€”CH2H5; R6=H, â€”CH3, C2H5, â€”C3H7 or â€”C4H9 and n=1 to 25, R3 is R1 or R2, R4 is â€”CH3 or â€”C2H5 and Xâˆ’ is an anionic radical.