Patent ID: 8076006

Claim:
A composite panel prepared using a moisture resistance additive useful for preparing composite panels, the composite panel comprising: gypsum, cellulose, or combinations thereof; and the moisture resistance additive, wherein the moisture resistance additive was provided as an emulsion comprising: from 10 to 50 weight percent of a triglyceride having a saponification value of at least 150 and an iodine value of at least 35; from 0.5 to 20 weight percent of a hydrocarbon wax; from 0.5 to 3 weight percent of a linear C 12 to C 22 fatty acid; and a compound or compounds selected from the group consisting of an amine, an inorganic base, and mixtures thereof, wherein the amine, when present, comprises from 0.5 to 3 weight percent of the emulsion, and wherein the inorganic base, when present comprises from 0.5 to 6 weight percent of the emulsion, and water; and wherein the emulsion is prepared under conditions sufficient to disperse components of the formulation and at least partially saponify the triglyceride.