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US 2008/0306301 A1Published application
Broad spectrum antimicrobial purification materials and methods for purifying fluids
AssigneeWater Visions International, Inc.
InventorsJan W. Gooch, Arthur W. Johnston, Arthur F. Johnston
Life of this patent
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Abstract
An antimicrobial composition for use in water, air, and other fluid treatment applications is provided. The composition includes a biguanide dihydrate compound, such as a chlorhexidine dihydrate, which exhibits broad spectrum antimicrobial activity.
Claims20
An antimicrobial composition comprising a compound of the formula
- wherein R1 comprises a straight chained, branched, or cyclic alkyl, or aryl group;
- wherein R2 and R3, independent of one another, comprise a hydrogen, halogen, hydroxyl, amino, amido, alkylamino, arylamino, alkoxy, aryloxy, nitro, acyl, alkenyl, alkynyl, cyano, sulfo, sulfato, mercapto, imino, sulfonyl, sulfenyl, sulfinyl, sulfamoyl, phosphonyl, phosphinyl, phosphoryl, phosphino, thioester, thioether, anhydride, oximno, hydrazino, carbamyl, phosphonic acid, phosphonato, or a straight, chained, branched, or cyclic alkyl, alkenyl, alkynyl, aryl, heteroaryl, or heterocyclic group;
- and
- wherein x is a number from 1 to 8 and y is a number from 1 to 4.
1 more element
An antimicrobial composition comprising a water-insoluble compound of the formula
- wherein R1 comprises a straight chained, branched, or cyclic alkyl, or aryl group;
- wherein R2 and R3, independent of one another, are electron-withdrawing groups;
- and
- wherein x is a number from 1 to 8 and y is a number from 1 to 4.
1 more element
Dependencies are inferred from the claim text.