Bleach activator granules and preparation thereof

Details Bleach activator granules and preparation thereof Bleach activator granules and preparation thereof

1981-12-04

1983-12-27

Gluck, Irwin

Compositions

Oxidative bleachant, oxidant containing, or generative

Contains activator admixed with inorganic peroxide

8111, 252 95, 252 99, 2521863, 25218631, 25218639, 2521864, C11D 3395, C11D 754

Patent

active

044229500

ABSTRACT:
Effervescent bleach activator granules for use in washing and/or bleaching compositions comprising a bleach activator, a peroxoborate and a binding material are disclosed. Preferred granules include an alkali metal perborate monohydrate, preferably in a proportion at least equal to the amount of the bleach activator. These granules have the advantage that the reduction of mechanical loss when used in washing machines combined with a fast dissolution of and reaction between the bleach activator and the percompound in close proximity at a high local pH should improve the bleach performance, particularly in the low/medium temperature range, to a substantial degree.

REFERENCES:
patent: 3163606 (1964-12-01), Viveen et al.
patent: 3338839 (1967-08-01), MacKellar et al.
patent: 3661789 (1972-05-01), Corey et al.
patent: 3671439 (1972-06-01), Corey et al.
patent: 3779931 (1973-12-01), Fries et al.
patent: 3945936 (1976-03-01), Lucas et al.
patent: 4003841 (1977-01-01), Hachmann et al.
patent: 4064062 (1977-12-01), Yurko

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