Cement dispersant, its production process, and cement...

Details Cement dispersant, its production process, and cement... Cement dispersant, its production process, and cement...

2007-07-24

2007-07-24

Harlan, Robert D. (Department: 1713)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

C524S005000, C524S556000, C524S558000, C526S079000, C526S240000, C526S318410

Reexamination Certificate

active

11137228

ABSTRACT:
Disclosed are the following: a cement dispersant which is excellent in initial dispersibility and further in flow retainability of cement, because of using a polymer having a proper molecular weight distribution; a process for producing this cement dispersant; and a cement composition using this cement dispersant. The cement dispersant comprises a water-soluble polymer (P) as a main component, and is characterized by displaying an area proportion (a value (A−B) given by subtracting an area ratio B of a lower molecular weight side portion from an area ratio A of a higher molecular weight side portion) in the range of 13 to 60%.

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