C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
134/5, 8/87
C11D 3/395 (2006.01) C11D 3/39 (2006.01) C11D 7/18 (2006.01) C11D 17/00 (2006.01) D06L 3/06 (2006.01)
Patent
CA 1053858
ABSTRACT OF THE DISCLOSURE A coated stabilized bleaching assistant suitable for use in pulverulent washing and bleaching compositions comprising drop-shaped to globular-shaped particles having an average dia- meter of 0.01 mm to 2.5 mm, and at least 70% of which have a dia- meter within the range of 0.1 mm to 1 mm consisting of 10% to 70% by weight of at least one activator for active oxygen derived from compounds yielding H2O2 in aqueous solution, substantially surrounded by from 30% to 90% by weight of a mixture of (a) from 2 to 10 parts of substantially saturated fatty acids having 12 to 24 carbon atoms, (b) 1 part of aliphatic alcohols having 10 to 20 carbon atoms or their lower alkoxylated products having 1 to 5 alkoxy units, and (c) from 5% to 25% by weight said mixture of water-soluble sulfates of aliphatic alcohols having from a to 18 carbon atoms or their lower alkoxylated products having 1 to 5 alkoxy units. The particles are obtained by spraying a fluid mix- ture of the components through a nozzle or by a spray disc, and cooling. The coated stabilized bleaching assistant can be incor- porated with percompounds and other washing composition components. -A-
233124
Hachmann Klaus
Puchta Rolf
Sperling Gerhard
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