Hydraulic cement composition

Details Hydraulic cement composition Hydraulic cement composition

1977-02-02

1978-04-11

Poer, J

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 90, 106314, C04B 735

Patent

active

040837297

ABSTRACT:
An improved hydraulic cement composition having an almost constant air content, which is incorporated with an organic phosphoric acid ester of the formula ##STR1## Wherein R.sub.1 is a group of the formula: R.sub.4 --O--(CH.sub.2 CH.sub.2 O).sub.n -- wherein R.sub.4 is an alkyl having 4 to 18 carbon atoms, an alkenyl having 4 to 18 carbon atoms or an aryl substituted with an alkyl having 4 to 18 carbon atoms and n means an average addition molar number of ethylene oxide and is an integer of 0 to 15 in average, and R.sub.2 and R.sub.3 are the same or different and are each hydroxy or a group of the formula: R.sub.4 --O--(CH.sub.2 CH.sub.2 O).sub.n -- wherein R.sub.4 and n are as defined above, or a salt thereof with an inorganic or organic base, as an air entraining agent, optionally together with a dispersing agent and an accelerator.

REFERENCES:
patent: 2776902 (1957-01-01), Scripture
patent: 2848340 (1958-08-01), Haldas
patent: 3033889 (1962-05-01), Chiddix et al.
patent: 3351478 (1967-11-01), Dodson et al.

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