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US 5,668,083 AGranted
Composition containing 3-isothiazolone and stabilizer
AssigneeRohm and Haas Company
InventorMasahiro Matsumoto
Life of this patent
Estimating the term…
Abstract
3-Isothiazolone compositions which are stable, free from turbidity, and do not corrode metal storage containers are disclosed. These compositions further have no possibility of coagulating latex or generating nitrosamine.
Claims8
Composition comprising:
- (a) at least one 3-isothiazolone biocide having the general formula:
- ##STR2## wherein X and X' are independently selected from the group consisting of hydrogen or halogen;
- and Y is hydrogen or an alkyl group;
- (b) hexamethylenetetramine;
- (c) 5-bromo-5-nitro-1,3-dioxane;
- and
- (d) solvent selected from the group consisting of a water miscible organic solvent and a mixture of water and said water miscible organic solvent;
- wherein the ingredients (b) and (c) are present in an effective amount so that there is substantially no precipitate formation in said composition upon storage and wherein the composition is non-corrosive to metal storage containers.
5 more elements
Method of stabilizing a solution of 3-isothiazolone having the general formula ##STR3## wherein X and X' are independently selected from the group consisting of hydrogen or halogen;
- and Y is hydrogen or an alkyl group;
- in a solvent selected from the group consisting of water miscible organic solvent and a mixture of water and said water miscible organic solvent comprising introducing in said solution an effective stabilizing amount of hexamethylenetetramine and 5-bromo-5-nitro-1,3-dioxane wherein the ingredients (b) and (c) are present in an effective amount so that said solution does not form a precipitate upon storage and is non-corrosive to metal storage containers.
Dependencies are inferred from the claim text.