Abstract: A composition comprises (a) halogenated aromatic 1,2- or 1,3- dinitrile, (b) a substituted urea and (c) a halogen-containing aromatic alkyl sulphoxide or sulphone. The composition may include other materials for example inorganic diluents such as silica, alumina, titanium, dioxide, zinc oxide, etc. and may also include other anti-microbial agents such are anti-bacterial agents. The composition has anti-microbial properties, particularly anti-fungal and anti-algal properties. The composition can be incorporated into materials such as paint or plastics to provide anti-microbial properties.

Abstract: A composition comprises (a) halogenated aromatic 1,2- or 1,3-dinitrile, (b) a substituted urea and (c) a halogen-containing aromatic alkyl sulphoxide or sulphone. The composition may include other materials for example inorganic diluents such as silica, alumina, titanium, dioxide, zinc oxide, etc. and may also include other anti-microbial agents such as anti-bacterial agents. The composition has anti-microbial properties, particularly anti-fungal and anti-algal properties. The composition can be incorporated into materials such as paint or plastics to provide anti-microbial properties.

Abstract: A particulate composition comprising an isothiazolinone or isothiazolothione or a salt or complex thereof and a water soluble metal salt. The salt is typically a metal salt, for example the sodium salt of 1,2-benzisothiazolin-3-one and the water soluble metal salt is particularly an alkali metal salt such as disodium hydrogen phosphate. A preferred composition can be obtained by stirring together an isothiazolinone or isothiazolothione, a base and an alkali metal phosphate in the presence of water until a dry particulate product is obtained. The particulate product is typically highly and rapidly soluble in water and may be stored in a container formed from a water soluble material, for example a bag formed from polyvinyl alcohol.

Abstract: A particulate composition comprising an isothiazolinone or isothiazolothione or a salt or complex thereof and a water soluble metal salt. The salt is typically a metal salt, for example the sodium salt of 1,2-benzisothiazolin-3-one and the water soluble metal salt is particularly an alkali metal salt such as disodium hydrogen phosphate. A preferred composition can be obtained by stirring together an isothiazolinone or isothiazolothione, a base and an alkali metal phosphate in the presence of water until a dry particulate product is obtained. The particulate product is typically highly and rapidly soluble in water and may be stored in a container formed from a water soluble material, for example a bag formed from polyvinyl alcohol.

Abstract: Concentrated aqueous formulations of isothiazolin-3-ones containing 5-30% urea are stable down to -13 deg C. at pH>9.