| 摘要 |
PROBLEM TO BE SOLVED: To provide a dispersant for a self-leveling material capable of suppressing the generation of bleeding water resulting from high-fluidity and exhibiting dispersion performance with a small amount of addition than a conventional dispersant. SOLUTION: A (meth)acrylic acid-based polymer containing a structural unit derived from a monomer (A) being an alkenyl ether derivative having a polyoxyalkylene group and a specific monomer (B) such as (meth)acrylic acid is used as the dispersant for the self-leveling material. A dispersant obtained by copolymerizing a monomer (C)copolymerizable with these monomers is preferable. The dispersant can be used by premixing with a hydraulic composition (self-leveling material) such as cement and gypsum, and an aggregate is further added as necessary. COPYRIGHT: (C)2007,JPO&INPIT |
