Peroxygen bleaching and compositions therefor

Details Peroxygen bleaching and compositions therefor Peroxygen bleaching and compositions therefor

D - Textiles, Paper

06

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8/87

D06L 3/02 (2006.01) C07C 303/00 (2006.01) C11D 3/39 (2006.01) D06L 3/04 (2006.01) C07C 309/04 (2006.01) C07C 309/30 (2006.01)

Patent

CA 1111610

ABSTRACT: A process of removing soil and/or stains from fabrics by immersing the fabrics in a peroxygen bleach bath con- taining as a peroxygen activator, an anhydride of a carboxylic acid with a sulfonic acid selected from the formulae consisting of R1-(SO2OC(O)-R2)n and (R1-SO2OC(O))nR2 wherein n is an integer of 1 to 3; each of R1 and R2, which may be alike or different, is selected from the class consisting of a 1 to 3 valent hydrocarbon radical derived from an alkane of 1 to 16 carbon atoms, a cyclo- alkane of 3 to 7 carbon atoms and an arene of 6 to 12 aromatic carbon atoms, while taken together R1 and R2 can complete an o-phenylene or an o-naphthalene ring, said hydrocarbon radicals optionally bearing 1 to 3 sub- stituents selected from the class consisting of alkoxy of 1 to 16 carbon atoms on the arene, aliphatic carboxamido of 1 to 16 carbon atoms on the arene, alkyl of 1 to 16 carbon atoms on the arene, benzamido on the arene, nitro, chlorine, bromine and fluorine. Also described are dry blend compositions containing the activator and peroxygen.

310772

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