Dispersible surface-modified carbon black
AssigneeTokai Carbon Co., Ltd.
InventorsTomoaki Kirino, Makoto Sekiyama
Life of this patent
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Abstract
Dispersible surface-modified carbon black that is surface-modified by causing a functional group on the surface of the carbon black to be bonded to a diol-modified end-containing polymer through a triisocyanate compound exhibits excellent dispersibility in a non-polar solvent, a low-polar solvent, and a resin. The dispersible surface-modified carbon black is characterized in that a surface functional group of the carbon black is bonded to one isocyanate end group of a triisocyanate compound having three isocyanate end groups, and the remaining two isocyanate end groups are respectively bonded to hydroxyl groups of a diol-modified end-containing polymer.
Claims6
A dispersible surface-modified carbon black having an excellent dispersibility in a non-polar solvent, a low-polar solvent or a resin, said surface-modified carbon black comprising:
- a carbon black post-treated to have a surface functional group provided thereon which is bonded to an isocyanate end group of a triisocyanate compound having three isocyanate end groups and a polymer having diol-modified end groups bonded to two isocyanate end groups of the triisocyanate compound, wherein the polymer is propene -1,2-diol-poly(2-ethylhexylcarbonylethene) sulfide.
Dependencies are inferred from the claim text.