US PATENT SUBCLASS 427 / 213.34
.~.~ Solid-walled microcapsule formed by in situ polymerization

Current as of: June, 1999
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427 /   HD   COATING PROCESSES

212  DF  PARTICLES, FLAKES, OR GRANULES COATED OR ENCAPSULATED {5}
213.3  DF  .~ Solid encapsulation process utilizing an emulsion or dispersion to form a solid-walled microcapsule (includes liposome) {4}
213.34.~.~ Solid-walled microcapsule formed by in situ polymerization

DEFINITION

Classification: 427/213.34

Solid-walled microcapsule formed by in situ polymerization:

(under subclass 213.3) Subject matter wherein the solid-walled microcapsule is obtained by the polymerization of one or more reactants contained in the colloidal emulsion or dispersion system.

(1) Note. A patent which claims an in situ generated polymer which subsequently reacts with a material; e.g., a crosslinking agent is not classified here but in subclass 213.31.