Aqueous Silicone Dispersions And Films And Their Preparation
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United States of America Patent
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Jul 9, 2015
app pub date -
Jul 15, 2013
filing date -
Aug 1, 2012
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Abstract
An aqueous dispersion, useful for forming a film, comprises a silicone composition dispersed in an aqueous phase. The silicone composition comprises a product of a reaction of (a) an alkenyl-containing organopolysiloxane having an average per molecule of at least 2 alkenyl groups and (b) an Si H containing siloxane having an average per molecule of at least 2 Si H moieties. The dispersion also comprises a hydrosilylation catalyst and polyvinyl alcohol. The composition is stabilised in dispersion form by the polyvinyl alcohol dissolved in the aqueous phase. The dispersion is an effective method of delivering a pharmaceutically or cosmetically active ingredient by topical application.
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