POLYMERIC MICROPARTICLES
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United States of America Patent
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Issued Date -
Dec 28, 2017
app pub date -
Feb 17, 2016
filing date -
Feb 18, 2015
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Abstract
The present invention relates to microparticles having a polymeric shell, and also to aqueous dispersions comprising these microparticles. The microparticles having a polymeric shell comprise:
- a) at least one acrylic copolymer of HASE type;b) at least one solid/liquid phase change material having a phase transition temperature Tf1 of greater than or equal to 20° C.;c) at least one solid/liquid phase change material having a phase transition temperature Tf2 of less than or equal to 30° C., provided that Tf2 is less than Tf1;d) optionally at least one active agent.
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