Patent ID: 7332464

Claim:
A process for preparing a bleach activator cogranulate, said process comprising: a) spraying an aqueous solution consisting of one or more ammonium nitrile compounds and water onto a solid particle consisting of a further bleach activator other than an ammonium nitrile to moisten the solid particle to provide a moist solid particle; wherein an acidic additive, a binder, or mixtures thereof are optionally added to the aqueous solution and/or further bleach activator, said acidic additive selected from the group consisting of an acidic component, a salt thereof or an acidic polymer further selected from the group consisting of sulfuric acid, sodium hydrogen sulfate, phosphoric acid, sodium hydrogen phosphate, phosphonic acid, polyphosphonic acid, glycolic acid, succinic acid, succinic anhydride, glutaric acid, glutaric anhydride, adipic acid, adipic anhydride, maleic acid, maleic anhydride, lactic acid, and mixtures thereof; and said binder selected from the group consisting of cellulose, an ether or ester of starch, a film-forming polymer, an alkane sulfonate, an arylsulfonate, an alkylarylsulfonate, an alkyl ether sulfate, an alkylsulfate, an alpha-olefinsulfonate, a soap, and mixtures thereof; b) granulating the moist solid particle to provide a moist granulate; and c) drying and sieving the moist granulate to provide the bleach activator cogranulate.