US PATENT SUBCLASS 516 / 11
.~.~ With particulate solid

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

9  DF  CONTINUOUS LIQUID OR SUPERCRITICAL 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., THICKENING AGENT; PROTECTIVE COLLOID AGENT; COMPOSITION CONTAINING AN EMULSIFYING AGENT WITH NO DISPERSANT* DISCLOSED; ORGANIC LIQUID EMULSIFIED IN ANHYDROUS HF) {5}
10  DF  .~ Having discontinuous gas or vapor phase, i.e., foam {6}
11.~.~ With particulate solid

DEFINITION

Classification: 516/11

With particulate solid:

(under subclass 10) Subject matter in which the colloid system contains a particulate solid.

(1) Note. When classifying foam colloid systems, the agent should not be confused with the gas phase. The (colloid system making or stabilizing) agent is the component which tends to aggregate at the boundary between the gas phase and the liquid phase to facilitate or assist in the persistence of the system for the degree of time sufficient for its intended use.

SEE OR SEARCH CLASS

73, Measuring and Testing,

53.01+, for liquid analysis or analysis of the suspension of solids in a liquid (particularly subclass 60.11 for determining cleaning or foaming ability).