C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
C11D 3/08 (2006.01) C11D 3/02 (2006.01) C11D 3/10 (2006.01) C11D 3/12 (2006.01) C11D 3/386 (2006.01) C11D 3/39 (2006.01) C11D 3/42 (2006.01) C11D 3/50 (2006.01) C11D 17/06 (2006.01)
Patent
CA 2177677
Granular laundry detergents are formulated with percarbonate bleach and oxidation-sensitive ingredients such as brighteners, enzymes. perfumes and the like. The storage stability of such compositions is improved by the presence of silicate. For example, the tendency of stilbene-type brighteners to form undesirable yellow shades in the presence of percarbortate is diminished by the incorporation of silicate materials into the granules,
Des compositions de détergents granulaires pour lessives comprennent un percarbonate de blanchiment et des ingrédients sensibles à l'oxydation, tels que des agents avivant les couleurs, des enzymes, des parfums et analogues. La stabilité au stockage de ces compositions est améliorée par la présence de silicate. Par exemple, la tendance des agents avivant les couleurs, du type stilbène, à produire un jaunissement indésirable en présence du percarbonate est réduite par l'incorporation de silicates dans les granules.
Baillely Gerard Marcel
Hartshorn Richard Timothy
Kirby Eades Gale Baker
The Procter & Gamble Company
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