Ppg Industries, Inc.

Robert H Juda

Paritosh M Chakrabarti

Roger A Crawford

Halophors of a complex of bromine or iodine, a tertiary amide, e.g., dialkylformamide or dialkyl acetamide, and a halide, e.g., alkali metal or alkaline earth metal bromide or iodide, are described. The alkyl groups of the tertiary amide are typically lower alkyl groups, i.e., groups containing from 1 to 4 carbon atoms. Also described are solid biocidal compositions, e.g., fumigants, of particulate, free-flowing inert amorphous siliceous carrier having at least a biocidal amount of halophor admixed with said carrier.

Halophor composition

Halophors, e.g., bromophors, comprising a complex of sulfone, e.g., sulfolane, halide ion, e.g., sodium bromide, and halogen, e.g., bromine, are described. Solid, free-flowing halophor compositions of the aforesaid complex and an amorphous siliceous carrier are also described.

Described are free-flowing particulate bromophor compositions of a siliceous carrier having absorbed therein from 1 to 80 weight percent of a bromophor that is a complex of (a) bromine, (b) alkali metal halide and (c) nonionic, anionic or cationic surfactant-type organic material.

Bromophor composition

Halophor biocidal compositions, e.g., bromophors, comprising a complex of N-alkyl substituted-2-pyrrolidone, e.g., N-methyl pyrrolidone, halide ion, e.g., sodium bromide, and halogen, e.g., bromine, are described.

Halophor biocidal compositions

Complexes of bromine and/or iodine, the dihalide of poly(ethylene glycol) and alkali metal or alkaline earth metal halide are described. In particular, complexes of bromine with poly(ethylene glycol) dichloride and alkali metal halide, e.g., lithium or sodium bromide, are described.

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Akron, OH, United States of America

Robert H Juda