Blanchard, Flynn, Thiel, Boutell & Tanis
Dispersant for aqueous slurry of coal powder
 A dispersant for forming an aqueous slurry of coal powder having a good flowability, which comprises as the active ingredient at least one member selected from sulfonation products of polycyclic aromatic compounds which may have a hydrocarbon group as a substituent, salts thereof and formaldehyde condensates thereof. 
Kao Soap Co., Ltd.
C C
C10L C09K
inventional inventional
Shin-ichi Noboru Masaaki
Watanabe Moriyama Yamamura