Ultrafine sodium bicarbonate powder
AssigneeChurch & Dwight Co., Inc.
InventorsM. Stephen Lajoie, Anthony E. Winston
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Abstract
This invention provides alkali metal bicarbonate powder consisting of a narrow size distribution range of ultrafine particles. The ultrafine powder has a large surface area, and provides enhanced reactivity in applications such as deodorization or neutralization, and exhibits increased antibacterial/antifungal activity. The ultrafine powder also has an exceptional capability to form a homogenous solid-phase suspension in a liquid medium which has long term stability.
Claims5
Alkali metal bicarbonate powder which consists of monoclinic crystalline particles having an average particle size between about 20-150 microns, and having surfaces coated with between about 0.5-20 weight percent of adherent ultrafine alkali metal bicarbonate particles having an average particle size between about 0.5-10 microns.
Alkali metal bicarbonate powder which consists of monoclinic crystalline particles having an average particle size between about 20-150 microns, and having surfaces coated with between about 0.5-20 weight percent of adherent submicron zinc oxide or zinc sulfide particles having an average particle size between about 10-500 nanometers.
Dependencies are inferred from the claim text.