专利名称：Method of grinding a hydraulic cement发明人：Frank G. Serafin申请号：US07/004356申请日：19870116公开号：US04711401A公开日：19871208
摘要：Hydraulic cements such as Portland cement are interground with diestersformed by reacting a polyol (e.g. alkylene glycol) with a monobasic carboxylic acid (e.g.acetic acid) to enhance the efficiency of the grinding operation.
申请人：W. R. GRACE & CO.
代理人：Bart G. Newland,William L. Baker
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