Patent ID: 9392789
Filing Date: 2016-07-19
CPC Classification: A01N

Claim Text:
1. A synergistic biocidal composition comprising: synergistically effective amounts of 2,2-dibromomalonamide and an oxidizing biocide selected from the group consisting of monochloramine, bromochlorodimethylhydantoin, hypobromite ion or hypobromous acid, hydrogen peroxide, dichloroisocyanurate, trichloroisocyanurate, and chlorine dioxide; wherein when the oxidizing biocide is monochloramine, the weight ratio of 2,2-dibromomalonamide to monochloramine is between 32:1 and 1:4; wherein when the oxidizing biocide is bromochlorodimethylhydantoin the weight ratio of the 2,2dibromomalonamide to the bromochlorodimethylhydantoin is between 4:1 and 1:16; wherein when the oxidizing biocide is hypobromite ion or hypobromous acid the weight ratio of the 2,2dibromomalonamide to the hypobromite ion or hypobromous acid is between 4:1 and 1:32; wherein when the oxidizing biocide is hydrogen peroxide the weight ratio of the 2,2-dibromomalonamide to the hydrogen peroxide is between 1:20 and 1:80; wherein when the oxidizing biocide is dichloroisocyanurate the weight ratio of the 2,2-dibromomalonamide to the dichloroisocyanurate is between 32:1 and 1:1; wherein when the oxidizing biocide is trichloroisocyanurate the weight ratio of the 2,2-dibromomalonamide to trichloroisocyanurate is between 16:1 and 1:4; wherein when the oxidizing biocide is chlorine dioxide the weight ratio of the 2,2-dibromomalonamide to the chlorine dioxide is between 16:1 and 1:16.