Method for brightening surfaces and composition therefor

Details Method for brightening surfaces and composition therefor Method for brightening surfaces and composition therefor

C - Chemistry, Metallurgy

11

D

134/5.4

C11D 3/395 (2006.01)

Patent

CA 1197158

Abstract The disclosed method for brightening the stains on a stained surface involves the spraying of a combined multi- part system typically made up from three separately prepackaged parts: (a) a nonionic surfactant of the ethoxy- late type (e.g. a surfactant of the formula Image , wherein R is a hydrophobic organic radical and n ranges from 3 to 40), typically diluted with water, (b) a solid, particu- late mass of water soluble persulfate salt, and (c) a concentrated aqueous solution of H2O2. A proper balance between the relative amounts of the three parts provides an adequate pot life before spraying, good brightening and cleaning, and a modest, sustained rate of decomposition of the H2O2.

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