B - Operations – Transporting – 02 – C
Patent
B - Operations, Transporting
02
C
241/136, 261/50
B02C 23/00 (2006.01) B02C 23/06 (2006.01) C04B 24/04 (2006.01)
Patent
CA 1253523
GRINDING AIDS FOR HYDRAULIC CEMENT Abstract Hydraulic cements such as Portland cement are interground with diesters formed by reacting a polyol (e.g. alkylene gylcol) with a monobasic carboxylic acid (e.g. acetic acid) to enhance the efficiency of the grinding operation.
522826
Smart & Biggar
W.r. Grace & Co.,-Conn.
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