Rapidly-dissolving halogenated hydantoin powders having improved flow, reduced dust, improved wetability, and increased bulk densities
AssigneeBioLab Services, Inc.
InventorsAlan D. Harrison, J. Patrick Sisk
Life of this patent
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Abstract
A powdered halogenated hydantoin product having the following size distribution: (a) 70-100% halogenated hydantoin particles sized between 80 mesh and 200 mesh; (b) 0-20% particles sized larger than 80 mesh; and (c) 0-10% particles sized smaller than 200 mesh. The powdered product has superior dissolution and flow characteristics, while avoiding dusting where the product is used. Bromochlorodimethylhydantoin is the preferred halogenated hydantoin.
Claims8
A powdered halogenated hydantoin product consisting essentially of:
- (a) 70-100% halogenated hydantoin particles sized between 80 mesh and 200 mesh;
- (b) 0-20% halogenated hydantoin particles sized larger than 80 mesh;
- and
- (c) 0-10% halogenated hydantoin particles sized smaller than 200 mesh.
A method of treating water, said method comprising adding to the water a water treatment composition comprising powdered halogenated hydantoin;
- wherein said halogenated hydantoin consists essentially of:
- (a) 70-100% halogenated hydantoin particles sized between 80 mesh and 200 mesh;
- (b) 0-20% halogenated hydantoin particles sized larger than 80 mesh;
- and
- (c) 0-10% halogenated hydantoin particles sized smaller than 200 mesh.
Dependencies are inferred from the claim text.