Simultaneously foamed resin and magnesium oxychloride cement
AssigneeHenry Clark Thompson
InventorHenry Clark Thompson
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Abstract
A method is described for making a fire-resistant product of simultaneously foamed magnesium oxychloride cement and synthetic resin. An example is polyurethane foam which, in the process of formation, generates sufficient heat to cure the cement-forming components. The relatively low density products have high heat resistance, unlike resin foams, making them particularly useful for building and construction purposes.
Claims8
In a method of preparing a fireproof material, the steps of mixing
- a. between 1 and 9 parts by weight on a dry basis of
- 1. aqueous magnesium chloride having a specific gravity between 21.5 and 22.5.degree. Baume,
- 2. between 5 and 6.5 pounds magnesium oxide per gallon of aqueous magnesium chloride, and
- 3. a surfactant with
- b. one part of the ingredients for synthetic resin foam and reacting the ingredients simultaneously to form a co-foamed product wherein the foam forming ingredient of the resin component is relied upon to produce all of the bubbles in the cofoam.
Composition of matter comprising simultaneously co-foamed (a) magnesium oxychloride cement formed by mixing magnesium chloride in 21.5 to 22.5.degree. Baume solution, 5 to 6.5 pounds magnesium oxychloride per gallon of magnesium chloride, and surfactant, and (b) synthetic resin in which the cement ingredients are present in an amount between 1 to 9 parts by weight on a dry basis per part of synthetic resin and wherein the foam forming ingredient of the resin component is relied upon to produce all of the bubbles in the cofoam.
In a method of preparing a fire-resistant material, the steps of
- 1. preparing a mixture of
- a. aqueous magnesium chloride having a specific gravity between 21.5 and 22.5.degree. Baume,
- b. a polyol or polyester precursor for polyurethane foam,
- 2. preparing a mixture of magnesium oxide in an amount between 5 and 6.5 pounds per gallon of magnesium chloride, a surfactant, and an isocyanate-containing precursor for polyurethane foam,
- 3. reacting the two mixtures to form a co-foamed fire-resistant product.
Dependencies are inferred from the claim text.