Washing or cleaning agents with electrochemically activatable anionic mediator compounds
AssigneeHenkel AG & Co. KGaA
InventorsIwona Spill, Mareile Job, Peter Schmiedel, Thomas Gerke, Guido Grundmeier, Markus Voigt
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Abstract
The aim of the invention is to improve the cleaning power of washing and cleaning agents, especially with regard to bleachable stains, while avoiding any damage to the textile treated with said washing and cleaning agents. This is substantially achieved by using an electrolytically bleachable species generated by a redox reaction from an anionically substituted 1-hydroxy-2,2,6,6-tetramethylpiperidine, 2,2,6,6-tetramethylpiperidine-N-oxide, or (2,2,6,6-tetramethylpiperidine-1-yl)oxyl.
Claims5
A method for washing textiles or for cleaning hard surfaces, wherein the textiles or hard surfaces are contacted with a bleaching-active species, generated electrolytically by a redox reaction in an electrolysis device from anionically substituted 1-hydroxy-2,2,6,6-tetramethylpiperidine, 2,2,6,6-tetra-methylpiperidine-N-oxide, or (2,2,6,6-tetramethylpiperidin-1-yl)oxyl, wherein the anionic substitutent comprises an ester or amide at position 4 of the piperidine ring, in an aqueous bath.
Dependencies are inferred from the claim text.