| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a dispersant exhibiting high dispersing performance using a lignin derivative obtained by using kraft lignin discharged during production of pulp as a raw material. <P>SOLUTION: The dispersant containing the lignin derivative comprises: a structural unit (A) derived from kraft lignin and/or the salt; a structural unit (B) derived from a polyalkylene oxide chain; and a structural unit (C) derived from a monomer having an anionic functional group. In the lignin derivative, the ratio of (A)/[(B)+(C)] is from 100/0.1 to 100/1,000 wt.% and the ratio of (B)/(C) is from 100/0 to 95/5 wt.%. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
