US PATENT SUBCLASS 264 / 4.6
.~.~ Solid-walled microcapsule formed by physically removing a constituent (e.g., evaporation, extraction, etc.)

Current as of: June, 1999
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264 /   HD   PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES

4  DF  ENCAPSULATING NORMALLY LIQUID MATERIAL {1}
4.1  DF  .~ Liquid encapsulation utilizing an emulsion or dispersion to form a solid-walled microcapsule (includes liposome) {4}
4.6.~.~ Solid-walled microcapsule formed by physically removing a constituent (e.g., evaporation, extraction, etc.)

DEFINITION

Classification: 264/4.6

Solid-walled microcapsule formed by physically removing a constituent (e.g., evaporation, extraction, etc.):

(under subclass 4.1) Subject matter wherein solid-walled material is obtained by physically removing a constituent of the colloidal emulsion or dispersion, e.g., evaporation, distillation, extraction, precipitation, etc.