C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
134/5.4
C11D 3/395 (2006.01) C11D 3/39 (2006.01)
Patent
CA 2035790
ABSTRACT An aqueous liquid bleaching composition is described having a pH of from 1 to 6.5 and comprising a surfactant, an electrolyte and an organic peroxyacid having the formula: Image wherein X is H, alkyl, halogen, a carboxyl group, or the same peroxycarboxylic acid group: Image in symmetrical position to the first peroxyacid group on the aromatic ring; R is a straight or branched chain lower alkylene having 1-4 carbon atoms, preferably -CH2-; and n is an integer from 1-12, preferably from 3-8. A preferred peroxyacid is phthaloylaminoperoxycaproic acid.
Barnes Stephen G.
Finch Timothy D.
Thompson Ian
Bereskin & Parr
Plc Unilever
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