Woodhams, Blanchard and Flynn
Foaming bleaching composition
 A bleaching composition is disclosed characterized by containing sodium percarbonate which was treated by subjecting it to heating at a temperature of 75.degree. to 135.degree.C, for a heating time ranging (1) from 2 to 6 hours at 75.degree.C to (2) 5 to 30 minutes at 135.degree.C. 
Kao Soap Co., Ltd.
C C C C
C11D C01B C01B C11D
inventional inventional inventional inventional
Makoto Takashi Masaaki
Yamanaka Fujino Nishimura