Clump-free liquid dispersible powder compositions and process for making the same

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Title: Clump-free liquid dispersible powder compositions and process for making the same
United States Patent: 6,361,799
Inventors: Palkhiwala; Burgise F. (East Windsor, NJ)
Assignee: Accumed Inc. (Lawrenceville, NJ)
Appl. No.: 691441
Filed: October 18, 2000
Abstract
A powder composition which is readily dispersible in a liquid such as water without clumping, comprises a powder the particles of which are uniformly coated with an effective amount of a surfactant, preferably Polysorbate-80, sufficient to enable the powder composition to readily disperse in the liquid. A process for making the powder composition that disperses readily in a liquid without clumping, comprises the step of continuously mixing a powder with an amount of a surfactant for a time sufficient to uniformly coat at least substantially all of the particles of the powder with the surfactant.