Compositions: coating or plastic – Coating or plastic compositions – Metal-depositing composition or substrate-sensitizing...
Patent
1983-08-29
1985-05-28
Bell, Mark L.
Compositions: coating or plastic
Coating or plastic compositions
Metal-depositing composition or substrate-sensitizing...
106 97, 106104, 106314, C04B 735
Patent
active
045198420
ABSTRACT:
A hydraulic cement mix including hydraulic cement, aggregate, sufficient water to effect hydraulic setting of the cement, and an additive comprising a poly(hydroxyalkylated)polyethyleneamine or a poly(hydroxyethyl)polyethyleneimine or mixtures of each or both, the additive being present in an amount sufficient to increase the compressive strength of the hardened mix. Generally, the additive is present in a total amount of up to about 0.25% by weight based upon the weight of the cement, usually in an amount of between about 0.01% and about 0.25% by weight based upon the weight of the cement, preferably in an amount in the range of about 0.02% to about 0.07% by weight.
REFERENCES:
patent: 3674522 (1972-07-01), Brants et al.
patent: 4401472 (1983-08-01), Gerber
Bell Mark L.
Chin Gay
Martin Marietta Corporation
Mylius Herbert W.
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