Birch Stewart Kolash & Birch
Process for producing granular bleach activator composition and granular bleach activator composition
 A granular bleach activator composition and a process for producing a granular bleach activator composition having excellent solubility and storability, which comprises using at least one member selected from the group consisting of substances (a), (b), (c) and (d) as a core particle and granulating the core particle and a powdery bleach activator in the presence of a water-soluble organic binder to give granules having a weight-average particle diameter of 100 to 3,000 .mu.m: PA1 (a) a water-soluble substance having a pH in a 3 wt. % aqueous solution thereof, of 2 to 10, PA1 (b) a borate-coated sodium percarbonate, the particle of which has an inner surface and/or an outer surface coated with the borate, PA1 (c) a borate-coated sodium perborate, the particle of which has an inner surface and/or an outer surface coated with the borate, and PA1 (d) sodium perborate other than the borate-coated sodium perborate (c). 
Kao Corporation
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inventional inventional inventional inventional
Hiroshi Tomonori Muneo Hiroyuki Koichiro Takeshi
Noro Oyashiki Aoyagi Yamashita Suzuki Ishikawa