Patent ID: 8486881
Filing Date: 2013-07-16
Classification: C11D

Abstract:
1. A cogranule comprising a granule core and a shell layer or coating layer surrounding the granule core, wherein the granule core comprises a) at least one bleach activator, and c) at least one binder and wherein the shell layer or coating layer comprises d) at least one transition metal bleach catalyst and e) at least one coating agent selected from the group consisting of fatty acids, alcohol ethoxylates, and polymers, and the weight ratio of granule core to shell layer or coating layer is from 95:5 to 50:50, further wherein 0% by weight of the total amount of the at least one transition metal bleach catalyst in the cogranule is present in the core, and 100% by weight of the total amount of the at least one transition metal bleach catalyst in the cogranule is present in the shell layer or coating layer.