Process for preparing silicone microparticles

Details Process for preparing silicone microparticles Process for preparing silicone microparticles

1978-06-27

1983-01-25

Lovering, Richard D.

Chemistry: fertilizers

Processes and products

Forms or conditioning

71DIG1, 252316, 252358, 424 33, 424 94, 424327, 427 541, 524862, A01N 3738, B01J 1302, B05D 306, C08F 3008

Patent

active

043701604

ABSTRACT:
Microparticles, such as microspheres and microcapsules, comprising a solid organopolysiloxane are prepared by irradiating a dispersion of discrete entities with ultraviolet light. The discrete entities are dispersed in a UV-transparent fluid continuous phase and are sphere-like particles of a UV-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.

REFERENCES:
patent: 3257330 (1966-06-01), Burzynski et al.
patent: 3551346 (1970-12-01), Breen et al.
patent: 3576760 (1971-04-01), Gould et al.
patent: 3726710 (1973-04-01), Berger et al.
patent: 3816282 (1974-06-01), Viventi
patent: 3873499 (1975-03-01), Michael et al.
patent: 4052529 (1977-10-01), Bokerman et al.
patent: 4064027 (1977-12-01), Gant
patent: 4118389 (1978-10-01), Magee

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