SYNERGISTIC MICROBICIDAL COMPOSITIONS

摘要

Antimicrobial compositions based on the synergistic combination of an amino acid derivative having at least one chiral center and selected commercial microbicides are disclosed. Particularly preferred are combinations of ethylenediaminedisuccinic acid and salts thereof together with 5-chloro-2- methyl-3-isothiazolone, 2-methyl-3-isothiazolone, 2-n-octyl-3-isothiazolone, benzisothiazolone, 2-bromo-2-nitro-1,3-propanediol, imidazolidinyl urea, 1,3-dimeth- ylol-5,5-dimethylhydantoin, phenoxyethanol or methyl parahydroxybenzoate, that provide enhanced antimicrobial efficacy at a combined active ingredient level lower than that of the combined individual amino acid derivative and commercial microbicide effective use levels.