Method of treating magnesium oxchloride and magnesium oxysulfate

Details Method of treating magnesium oxchloride and magnesium oxysulfate Method of treating magnesium oxchloride and magnesium oxysulfate

1978-08-18

1980-01-22

Thomas, Earl C.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

264333, 264DIG43, 106106, 423472, 423544, B32B 1702, C04B 902

Patent

active

041850661

ABSTRACT:
A method of improving the surface characteristics of a formed article of magnesium oxychloride or magnesium oxysulfate cement is shown in which molded articles of magnesium oxychloride or magnesium oxysulfate are treated with water at temperatures of 90.degree. F. to 212.degree. F. (32.2.degree. C. to 100.degree. C.) for periods of 1 to 30 minutes or longer to prevent the formed article from efflorescing.

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patent: 1853521 (1932-04-01), Stewart
patent: 2712512 (1955-07-01), Biefeld et al.
patent: 2939799 (1960-06-01), Chisholm
patent: 2944291 (1960-07-01), Prior et al.
patent: 3275724 (1966-09-01), Klingel
patent: 3320077 (1967-05-01), Prior et al.
patent: 3327032 (1967-06-01), Adams
patent: 3634567 (1972-01-01), Yang

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