US PATENT SUBCLASS 516 / 7
.~.~ The discontinuous phase contains a solid phase (e.g., seed nucleus, microcapsules, smokey fog)

Current as of: June, 1999
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516 /   HD   COLLOID SYSTEMS AND WETTING AGENTS; SUBCOMBINATIONS THEREOF; PROCESSES OF

1  DF  CONTINUOUS GAS OR VAPOR PHASE: COLLOID SYSTEMS; COMPOSITIONS CONTAINING AN AGENT FOR MAKING OR STABILIZING COLLOID SYSTEMS; PROCESSES OF MAKING OR STABILIZING COLLOID SYSTEMS; PROCESSES OF PREPARING THE COMPOSITIONS (E.G., SMOKE, FOG, AEROSOL, CLOUD, MIST) {4}
6  DF  .~ Discontinuous phase primarily liquid (e.g., mist, fog) {2}
7.~.~ The discontinuous phase contains a solid phase (e.g., seed nucleus, microcapsules, smokey fog)

DEFINITION

Classification: 516/7

The discontinuous phase contains a solid phase (e.g., seed nucleus, microcapsules, smokey fog):

(under subclass 6) Subject matter in which the primarily liquid discontinuous phase further contains solid phase material such as droplets of liquid surrounding a solid seed nucleus, solid walled microcapsules, smoke (solid colloid-sized particles) mixed with the liquid colloid-sized particles.

SEE OR SEARCH THIS CLASS, SUBCLASS:

10+, for colloid systems of continuous liquid phase and a discontinuous gas or vapor phase (i.e., foam), and propellant, per se, therefor.