US 7,465,412 B2
Calcium hypochlorite composition
Stanley R. Pickens, Monroeville, Pa. (US); Fred Abraham, Wheeling, W. Va. (US); and Donald W. DuBois, Magnolia, Tex. (US)
Assigned to PPG Industries Ohio, Inc., Cleveland, Ohio (US)
Filed on Feb. 24, 2005, as Appl. No. 11/65,231.
Claims priority of provisional application 60/622736, filed on Oct. 28, 2004.
Prior Publication US 2006/0091356 A1, May 04, 2006
Int. Cl. C01B 11/06 (2006.01)
U.S. Cl. 252—187.28  [252/187.1; 252/187.23; 252/187.24; 252/187.27] 20 Claims
 
1. A solid calcium hypochlorite composition consisting essentially of an admixture of particulate calcium hypochlorite, particulate metaboric acid, and optionally an inert hygroscopic inorganic material, wherein said metaboric acid is present in said composition in an amount such that the composition is classified as a Packing Group III Division 5.1 oxidizer or as a non-Division 5.1 oxidizer, and wherein said calcium hypochlorite is present in an amount and is of a concentration such that calcium hypochlorite composition would be classified as a Packing Group II Division 5.1 oxidizer in the absence of said particulate metaboric acid.