Encapsulated co-micronized bicarbonate salt compositions

Details Encapsulated co-micronized bicarbonate salt compositions Encapsulated co-micronized bicarbonate salt compositions

1994-10-11

1996-01-09

Kishore, Gollamudi S.

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Particulate form

424 69, 424401, 424405, 424409, 424493, 424641, 424642, 424717, 424719, 424722, 514951, 514770, A01N 5900, A61K 914

Patent

active

054827205

ABSTRACT:
This invention provides an encapsulated co-micronized bicarbonate salt powder composition which is a blend of crystalline ingredients having a particle size between about 0.1-30 microns. The composition is produced by mill co-micronization of a crystalline bicarbonate ingredient and a crystalline inorganic compound ingredient having a Mohs hardness value between about 3-7, and then surface coating the particles with a polymer. A blend of crystalline particles such as sodium bicarbonate and zinc oxide is free-flowing and essentially free of agglomerated solids after co-micronization, and the discrete crystalline particles are coated with a polymer to form a present invention encapsulated co-micronized bicarbonate salt powder composition.

REFERENCES:
patent: 4302347 (1981-11-01), Straw et al.
patent: 5338551 (1994-08-01), Lajoie
patent: 5376362 (1994-12-01), Murphy et al.

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