Pitch-containing composition
AssigneesNikka Chemical Industry Co., Ltd., Chiyoda Chemical Enginrng & Constrct. Co. Ltd.
InventorsOsamu Ohzeki, Katsuhiko Shimakawa, Zenichi Mashino
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AssigneesNikka Chemical Industry Co., Ltd., Chiyoda Chemical Enginrng & Constrct. Co. Ltd.
InventorsOsamu Ohzeki, Katsuhiko Shimakawa, Zenichi Mashino
Estimating the term…
A composition in the form of a dispersion or a slurry, which comprises an aqueous medium, a finely divided pitch, and a specific dispersant of an amount sufficient for maintaining the pitch in the dispersed state. The dispersant is selected from (A) a compound of the formula shown below, (B) a polymeric material obtained by crosslinking the compound (A) with a crosslinking agent, (C) a salt of the sulfuric ester of the compound (A) and (D) a salt of the sulfuric ester of the polymeric material (B). The compound (A) is expressed as follows: Z--(Y--X).sub.p wherein Z is an organic radical capable of forming, together with p number of hydrogen atom, an active hydrogen-containing organic compound of the formula Z--(H).sub.p where H is the active hydrogen and p is a positive integer; Y is a polyoxyalkylene group consisting essentially of a plurality of monomer units, the monomer unit being at least one member selected from an ethylene oxide monomer unit (--CH.sub.2 --CH.sub.2 --O--) and a propylene oxide monomer unit (--CH.sub.2 --CHCH.sub.3 --O--); X is a hydrogen atom; and p has the same meaning as above. The composition is suitable as a fuel.
A composition in the form of a slurry which is stable at 25.degree. C. for at least 24 hours, comprising
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