Construction board with carbonate

Details Construction board with carbonate Construction board with carbonate

2011-01-11

2011-01-11

Speer, Timothy M (Department: 1784)

Stock material or miscellaneous articles

Sheet including cover or casing

Encased layer derived from inorganic settable ingredient

C428S703000

Reexamination Certificate

active

07867597

ABSTRACT:
A construction board is formed from a composition comprising one or more of the following ingredients: magnesium oxide, magnesium chloride, a binding agent (e.g., perlite), wood shavings, recycled board scraps, and water. The construction board further includes fiberglass and polyester paper sheets on opposite sides of the construction board. A method of fabricating the construction board is also disclosed to include mixing magnesium chloride with water to form a solution, mixing the solution with magnesium oxide, perlite and a binding agent to form a paste, and pouring the paste onto a mold to form a construction board. The paste is poured onto a mold which is then passed through a series of rollers to spread out the paste evenly across the mold and to form the paste into the desired thickness. The resulting construction board is fire and water resistant and much more durable than conventional Sheetrock® brand plaster wallboard.

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