| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a rapid production method for a high-performance cement dispersant having high concentration and low unreacted monomer contents. SOLUTION: In this method for producing a (meth)acrylic acid-based cement dispersant, a monomer mixture containing a polyalklylene glycol mono(meth) acrylate monomer and (meth)acrylic acid is polymerized in a reactor at a polymerization concentration of 50-90 wt.%, at 50-70 deg.C, and at a neutralization degree of (meth)acrylic acid of 0%.</p> |
