CPC C09K 8/035 (2013.01) [C04B 24/18 (2013.01); C04B 24/20 (2013.01); C04B 28/14 (2013.01); C08H 6/00 (2013.01); C09K 8/467 (2013.01); C04B 2103/408 (2013.01)] | 14 Claims |
1. A liquid composition, comprising:
a lignin sulfonic acid-based compound;
an aromatic water-soluble compound; and
a reaction product of the lignin sulfonic acid-based compound with the aromatic water-soluble compound,
wherein a peak area ratio represented by the following formula is at least 70%,
([b]−[a])/[b],
wherein [b] is a gel permeation chromatography (GPC) peak area, at detection wavelength of 280 nm, of the aromatic water-soluble compound before the reaction and [a] is a GPC peak area of the aromatic water soluble compound after the reaction; and
when the liquid composition is dried using a fan dryer at 100° C. for 24 hours to obtain a nonvolatile content, and dissolving the nonvolatile content in water to obtain a first aqueous solution in which a concentration of the nonvolatile content is from 28 to 32% by mass, a B type viscosity of the first aqueous solution is from 30 to 100 mPa·s.
|