Cement dispersion agents

Details Cement dispersion agents Cement dispersion agents

1992-12-16

1994-03-01

Jagannathan, Vasu S.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525296, 525303, 525308, 524 3, C08F26504, C04B 1604

Patent

active

052908690

ABSTRACT:
Cement dispersion agents containing a graft copolymer composed of four kinds of constituent unit each having a specified structure can provide improved fluidity to cementing compositions, prevent slump loss after the kneading process and reduce the drying shrinkage of hardened concrete produced at the same time.

REFERENCES:
patent: 4962173 (1990-10-01), Kinoshita et al.
patent: 5180760 (1993-01-01), Oshibe et al.

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