Process for preparing silicone microparticles cured by a...

Details Process for preparing silicone microparticles cured by a... Process for preparing silicone microparticles cured by a...

B - Operations, Transporting

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B01J 13/02 (2006.01) A61K 9/16 (2006.01) B01J 13/18 (2006.01) C08J 3/02 (2006.01) C08J 3/16 (2006.01) C08J 3/24 (2006.01) C08L 83/14 (2006.01)

Patent

CA 1299304

PROCESS FOR PREPARING SILICONE MICROPARTICLES CURED BY A MICHAEL ADDITION REACTION ABSTRACT Microparticles, such as microspheres and micro- capsules, comprising a solid organopolysiloxane are prepared by curing a dispersion of discrete entities by means of a Michael-type addition reaction. The discrete entities are dispersed in a fluid continuous phase and are sphere-like particles of a curable liquid organopolysiloxane composition, or such a liquid organopolysiloxane composition containing a material to be encapsulated. The microparticles may be elastomeric or resinous and are useful as filler particles and time-release capsules.

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