Fireproof product using magnesium oxychloride cement

Details Fireproof product using magnesium oxychloride cement Fireproof product using magnesium oxychloride cement

1973-09-17

1976-06-15

Van Balen, William J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Nonplanar uniform thickness material

106 15FP, 252 81, 260 25FP, 260 25AJ, 427244, 428184, 428313, 428314, 428316, 428318, 428423, 428426, 428432, 428537, 428539, 428920, 428921, B32B 328, B32B 518, B32B 1700

Patent

active

039638499

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 foamed product may be formed in a mold with fibrous elements inroduced into the foaming mixture. 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.

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patent: 3133830 (1964-05-01), Jochinke
patent: 3522069 (1970-07-01), Checko
patent: 3573941 (1971-04-01), Edwards

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