Bag containing three component biocidal composition
AssigneeImperial Chemical Industries PLC
InventorsBryan S. Backhouse, William A. Fern
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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.
Claims12
A package comprising:
- a particular solid comprising (a) from 10 to 45 weight percent of an isothiazolinone or an isothiazolothione derivative, or a salt or complex thereof, (b) from 10 to 50 weight percent of a water-soluble inorganic salt which does not form a water insoluble salt or water insoluble complex with the said isothiazolinone or isothiazolothione or salt or complex thereof;
- and (c) from 10 to 45 percent of absorbed water, contained in a bag formed of a water-soluble material.
Dependencies are inferred from the claim text.