Effervescent granules with delayed effervescent effect
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United States of America Patent
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Aug 13, 2002
Grant Date -
N/A
app pub date -
Sep 6, 2000
filing date -
Sep 9, 1999
priority date (Note) -
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Abstract
The effervescent granules with delayed effervescent effect consist of at least one acid component and one component evolving gas under the action of acid, as well as of active substances, fragrances, plant extracts, vitamins, minerals etc. admixed as needed, the particles of the acid component being coated with--preferably 1 to 30% by weight of--at least one carbonate compound--possibly including a partial reaction--and/or a hydrocolloid. The gas-evolving component consists of alkali hydrogen carbonate, alkali carbonate, and/or alkaline-earth carbonate particles which are coated with at least one further substance, particularly with a melt of polyethylene glycol 6000. The particles preferably have a grain size above 0.2 mm.
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