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US 11,498,872 B2Granted
Gypsum board and gypsum slurry formed using a phosphorus containing compound
AssigneeGold Bond Building Products, LLC
InventorsR. G. Iyer, Eli Stav, Ma-Ikay Miatudila, Joseph J. Bailey
Life of this patent
Estimating the term…
Abstract
In general, the present invention is directed to the use of particular phosphorus containing compounds for making a gypsum board. The phosphorus containing compound may be a phosphite or a phosphate having a certain formula. In this regard, the present invention is directed to a slurry for making a gypsum board wherein the slurry includes such phosphorus containing compound. The present invention is also directed to a method of making a gypsum board from the slurry as well as a resulting gypsum board.
Claims17
A slurry for making a gypsum board, the slurry comprising
- stucco,
- water, and
- a phosphorus containing compound comprising a phosphite, a phosphate having the formula P(O)n(X)m wherein n is from 0 to 4, m is from 1 to 6, the sum of n and m is from 3 to 6, and X is halogen, sulfur, or selenium, a salt thereof, or a mixture thereof.
Dependencies are inferred from the claim text.