Compositions and Methods for the Controlled Release of Active Ingredients
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United States of America Patent
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Issued Date -
Sep 18, 2014
app pub date -
Mar 13, 2014
filing date -
Mar 13, 2013
priority date (Note) -
Abandoned
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Abstract
This invention discloses articles, in the form of particles to small granules to macro sized objects, capable of the controlled release of active ingredients (AI) from a mixture as a solid solution, a matrix or an encapsulated system containing AI and one or more of polymers, additives and/or carriers. The invention also covers additional surface coatings on those articles to further reduce the rate of release of AI. Finally, methods for producing these articles and treating the oil field well and other segments of the oil industry, for example piping, storage tank, and refinery locations, are introduced. The claimed articles can be used as is or mixed with other oil filed components or system, for example proppant fluid, in oil field applications.
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