US PATENT SUBCLASS 427 / 213.32
.~.~.~ Hardening

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}
213.31  DF  .~.~ With post-treatment of encapsulant or encapsulating material (e.g., further coating, hardening, etc.) {1}
213.32.~.~.~ Hardening {1}
213.33  DF  .~.~.~.~> Using crosslinking agent

DEFINITION

Classification: 427/213.32

Hardening:

(under subclass 213.31) Subject matter wherein the after treatment comprises hardening of the microsphere, e.g., chilling, chemically crosslinking etc.