发明名称 |
PROCESS FOR PRODUCING DISPERSANT FOR POWDERY HYDRAULIC COMPOSITION |
摘要 |
The present invention relates to a process for producing a powdery dispersant for preparing hydraulic compositions, which process includes adding an reducing agent to a solution predominantly containing a polycarboxylate polymer compound having a polyalkylene glycol chain, drying the resultant mixture, and pulverizing the dried product; the resultant powdery dispersant for preparing hydraulic compositions; and a hydraulic composition containing the dispersant. According to the present invention, there can be provided a powdery dispersant for preparing a hydraulic composition, which has excellent fluidity and dispersibility. The dispersant can be added to cement in advance. |
申请公布号 |
EP1052232(A4) |
申请公布日期 |
2003.03.19 |
申请号 |
EP19990973010 |
申请日期 |
1999.11.29 |
申请人 |
TAIHEIYO CEMENT CORPORATION |
发明人 |
ISOMURA, HIROTAKA;HAYASHI, HIROSHI;TSUKADA, KAZUHISA;SOEDA, KOICHI;MAKINO, KENJIRO;TAKIMOTO, MASAKI |
分类号 |
C04B24/16;C04B24/26;C04B24/32;C04B28/06;C04B40/00 |
主分类号 |
C04B24/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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