| 摘要 |
PROBLEM TO BE SOLVED: To provide a poly(meth)acrylic acid partially neutralized compound excellent in solubility in water and dispersibility. SOLUTION: The poly(meth)acrylic acid partially neutralized compound has a specific ratio of the amount of a poly(meth)acrylic acid to a poly(meth)acrylic acid salt, a viscosity of a 0.2 wt.% aqueous solution of within a specific range, and a non-soluble substance concentration in a 0.2 wt.% aqueous solution of not greater than 0.1 wt.%. COPYRIGHT: (C)2008,JPO&INPIT |
