Bleach activator granules

Details Bleach activator granules Bleach activator granules

D - Textiles, Paper

06

L

8/83

D06L 1/00 (2006.01) C11D 3/39 (2006.01)

Patent

CA 1102966

Abstract of the Invention Bleach activator granules for use in or with washing and bleaching compositions having a size of from 0.2 mm to 2.5 mm and being composed of: 55% to 90% by weight of at least one bleach activator for percompounds, having a titre in the peracid formation test of at least 1.5 ml 0.1N sodium thiosulphate; and 10% to 45% by weight of a binding material comprising essentially a mixture of at least two hydratable inorganic salts. The first hydratable salt is either sodium triphosphate, borax or mixtures thereof, the second hydratable salt being a salt having solubility in water of more than 30 grams anhydrous salt per 100 ml at 60°C, a pH of around 7 up to about 11 for 10% solution, and no transition point below 35°C. The bleach activator granules have satisfactory stability during storage, are of satisfactory mechanical strength and satisfactory disintegrating properties in contact with water.

318448

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