Abstract: The effectiveness of a bromine-based biocide in combating formation of biofilm infestation and/or growth of biofilm on a surface is potentiated by use therewith of a biodispersant. The biocide is a bromine based-biocide comprising (i) a sulfamate-stabilized, bromine-based biocide or (ii) at least one 1,3-dibromo-5,5-dialkylhydantoin in which each of the alkyl groups, independently, contains in the range of 1 to about 4 carbon atoms, the total number of carbon atoms in these two alkyl groups not exceeding 6, or both of (i) and (ii).

Abstract: The present invention relates to liquid mixtures and compositions having high bromine concentrations that find use as biocides and processes for preparing them.

Abstract: Described is a process of producing a concentrated liquid biocide formulation. Mixed together are (a) bromine chloride or bromine and (b) an aqueous solution of alkali metal salt of sulfamic acid having a pH of at least about 7, in amounts such that (i) the active bromine content of the solution is at least about 100,000 ppm (wt/wt), and (ii) the atom ratio of nitrogen to active bromine from (a) and (b) is greater than 1 when bromine is used and is greater than 0.93 when bromine chloride is used. Use of bromine chloride as the source of the active bromine in the process is preferred because in the resulting aqueous compositions, all of the bromine of the bromine chloride is made available as active bromine in solution. In other words, the chlorine of the bromine chloride is converted in the process to dissolved alkali metal chloride salt, thereby liberating all of the bromine in the biocidal composition as active bromine capable of providing biocidal activity.

Abstract: The effectiveness of a bromine-based biocide in combating formation of biofilm infestation and/or growth of biofilm on a surface is potentiated by use therewith of a biodispersant. The biocide is a bromine based-biocide comprising (i) a sulfamate-stabilized, bromine-based biocide or (ii) at least one 1,3-dibromo-5,5-dialkylhydantoin in which each of the alkyl groups, independently, contains in the range of 1 to about 4 carbon atoms, the total number of carbon atoms in these two alkyl groups not exceeding 6, or both of (i) and (ii).