C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
8/83
C11D 3/395 (2006.01) C11D 3/10 (2006.01) C11D 3/39 (2006.01) D06L 3/02 (2006.01)
Patent
CA 2029262
A stable and highly effective bleaching composition comprising (a) from 10% to 90%, preferably from 30% to 85% by weight of sodium percarbonate; (b) from 4% to 40%, preferably from 5% to 30% by weight of a bleach activator; and (c) from 5% to 85%, preferably from 10% to 70% by weight of an alkali metal bicarbonate, sesquicarbonate or dihydrogen orthophosphate, is disclosed. The composition can be used for admixing with a detergent composition or, preferably, for use as a bleach additive. Preferred compositions contain sodium bicarbonate and tetraacetyl ethylene diamine.
Barber Alan Don
Emmons Stuart Albert
Fry Alan John
Bereskin & Parr
Plc Unilever
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