Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1973-09-17
1976-04-20
Ivy, C. Warren
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
106107, 260 25AJ, 260 25B, 260 25BE, 260 25F, 260 25FP, 260 25R, C08K 318, C08G 1814, C08G 822
Patent
active
039518850
ABSTRACT:
A method of making a foamed fireproof product of magnesium oxychloride cement and the resulting product. A porous substrate is impregnated with a foaming mixture of magnesium chloride, magnesium oxide, and frothing agent in water. The mixture hardens with small voids throughout the porous substrate, thus providing a fireproof product of low density. The cement mixture may be co-foamed with polyurethane foam. The fireproof products of relatively low density are particularly valuable for building and construction purposes. Magnesium powder is the preferred frothing agent which, in combination with a surfactant, induces a large volume of small bubbles that remain in the composition as it is set.
REFERENCES:
patent: 3130174 (1964-04-01), Lloyd
patent: 3211675 (1965-10-01), Johnson
patent: 3238155 (1966-03-01), Harrell
patent: 3354099 (1967-11-01), Stegeman
patent: 3502610 (1970-03-01), Thompson
patent: 3607797 (1971-09-01), Rubens
patent: 3763070 (1973-10-01), Shearing
patent: 3778304 (1973-12-01), Thompson
Ivy C. Warren
Thompson Chemicals, Inc.
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