Patent ID: 6358902
Filing Date: 2002-03-19
Classification: C11D

Abstract:
A laundry detergent tablet comprising:a bleach activator having the general formula wherein R is an alkyl group containing from 5 to 18 carbon atoms wherein the longest linear alkyl chain extending from and including the carbonyl carbon contains from 6 to 10 carbon atoms and L is a leaving group, the conjugate acid of which has a pK&agr; in the range of from 6 to 13;said bleach activator being in particulate form and having a particle size in a range of from 100 microns to 4000 microns; said bleach activator being present in a range of from 0.1% to 15% by weight of said non-particulate detergent product; from about 0.1% to about 75% by weight of a peroxygen bleaching compound, wherein said bleach activator is dispersed within a matrix of said detergent tablet, said matrix having a density of at least 1000 g/l, further wherein said tablet is coated with a water-insoluble material selected from the group consisting of C12-C22 fatty acids, adipic acid, C8-C13 dicarboxylic acids and mixtures thereof.