| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a dispersant firstly showing a sufficient fluidization effect both in concrete compositions and in gypsum compositions, and secondly introducing a small amount of air voids into hydraulically setting systems, or suitable for achieving a sufficient fluidization effect of the hydraulically setting systems without introducing an excess amount of air. <P>SOLUTION: The dispersant is a polymer P including at least one acid unit, at least one ester unit, at least one unit containing a compound of formula (V), and optionally at least one amide unit. <P>COPYRIGHT: (C)2013,JPO&INPIT |
