Process for preparing silicone microparticles

Details Process for preparing silicone microparticles Process for preparing silicone microparticles

C - Chemistry, Metallurgy

08

J

204/91.38

C08J 3/16 (2006.01) B01J 13/18 (2006.01) C08J 3/28 (2006.01)

Patent

CA 1301109

PROCESS FOR PREPARING SILICONE MICROPARTICLES ABSTRACT Microparticles, such as microspheres and microcapsules, comprising a solid organopolysiloxane are prepared by curing a dispersion of discrete entities by means of ultraviolet radiation. The discrete entities are dispersed in a fluid continuous phase and are sphere-like particles of a curable liquid organopolysiloxane which contains reactive acryloxy, methacryloxy or acrylamide functionality, or such a liquid organopolysiloxane 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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