NANOPARTICLES HAVING AT LEAST ONE ACTIVE INGREDIENT AND AT LEAST TWO POLYELECTROLYTES
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United States of America Patent
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Issued Date -
Jun 21, 2012
app pub date -
Dec 16, 2011
filing date -
Dec 17, 2010
priority date (Note) -
Abandoned
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Abstract
The present invention relates to novel nanoparticles formed by at least one active ingredient and by at least two polyelectrolytes of opposite polarity, in particular characterized in that at least one of the two polyelectrolytes bears hydrophobic side groups and at least one of the two polyelectrolytes bears side groups of the polyalkylene glycol type, said nanoparticles having an average diameter ranging from 10 to 100 nm and comprising a quantity of groups of the polyalkylene glycol type such that the mass ratio wPAG of polyalkylene glycol relative to the total polymer is greater than or equal to 0.05.
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