Styrene-butadiene interpolymer latex based cement additives

Details Styrene-butadiene interpolymer latex based cement additives Styrene-butadiene interpolymer latex based cement additives

1977-07-15

1978-04-25

Rzucidlo, Eugene C.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 291SB, 260 297E, 260 297SQ, 260 4213, C08K 300

Patent

active

040862011

ABSTRACT:
This invention is directed to cement additives consisting essentially of (1) a styrene-butadiene interpolymer latex, (2) a nonionic surfactant, (3) a polyelectrolyte comprising the product obtained by copolymerizing methylmethacrylate and a sulfoester of .alpha.-methylene carboxylic acid or its salt, and (4) a polyorganosiloxane foam depressant, which additives provide portland cement compositions having excellent strength properties, workability and adhesion to cementitious substrates.

REFERENCES:
patent: RE28722 (1976-02-24), Sanders
patent: 2817128 (1957-12-01), Wickett
patent: 3043790 (1962-07-01), Sanders
patent: 3640912 (1972-02-01), Reinhard et al.
patent: 3895953 (1975-07-01), Mehta
patent: 3917574 (1975-11-01), Gibbs et al.
patent: 3936408 (1976-02-01), Adams et al.
patent: 3965032 (1976-06-01), Gibbs et al.
patent: 4015991 (1977-04-01), Persinskiet al.

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