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US 5,312,841 AGranted
Water based biocide
AssigneeBetz PaperChem, Inc.
InventorDonald J. Paterson
Life of this patent
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Abstract
The present invention relates to trihalo alkyl sulfone and mixtures of bis(trichloro methyl) sulfone (BTCMS), a non-ionic surfactant and a cationic quaternary ammonium halide surfactant formulated as a stable solution in water. The method of formulation comprises adding the BTCMS to an aqueous system containing a nonionic surfactant and a cationic quaternary ammonium halide surfactant. These formulations are useful as biocides and present advantages over organic solvent based formulations.
Claims7
A biocidal formulation comprising a water based, stable solution of:
- a) about 1-20% by weight of bis(trichloro methyl) sulfone or bis(tribromo methyl) sulfone;
- b) about 2-20% by weight of a nonionic surfactant;
- and
- c) about 5-40% by weight of a cationic quaternary ammonium halide surfactant.
1 more element
Dependencies are inferred from the claim text.