发明授权
- 专利标题： Cement dispersants and method of producing concrete by using same
- 专利标题（中）： 水泥分散剂及其使用方法
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申请号： US09251927申请日： 1999-02-17
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公开(公告)号： US06176921B1公开(公告)日： 2001-01-23
- 发明人: Mitsuo Kinoshita , Kazuhisa Okada , Masahiro Iida
- 申请人： Mitsuo Kinoshita , Kazuhisa Okada , Masahiro Iida
- 优先权： JP10-069482 19980303; JP10-267319 19980904
- 主分类号： C04B2416
- IPC分类号： C04B2416
摘要：
A cement dispersant composed of water-soluble vinyl copolymers which include specified kinds of constituent units at specified ratios and of which the weight average molecular weight pullulan converted by GPC method is 15000-150000 and the ratio of weight average molecular weight to number average molecular weight is 2-7 is used together with cement, aggregates and water to produce concrete with the water-to-cement ratio of 20-45%.