US PATENT SUBCLASS 516 / 142
.~.~.~.~ The agent contains both organic and inorganic (except water) material

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

113  DF  COMPOSITIONS CONTAINING AN AGENT FOR BREAKING (RESOLVING) OR INHIBITING COLLOID SYSTEMS; PROCESSES OF BREAKING (RESOLVING) OR INHIBITING COLLOID SYSTEMS (E.G., GEL BREAKING OR INHIBITING, COAGULATING, FLOCCULATING); PROCESSES OF PREPARING THE COMPOSITIONS {3}
135  DF  .~ Continuous liquid phase colloid system and discontinuous liquid phase (e.g., breaking an emulsion) {4}
139  DF  .~.~ The agent contains material which is different from the primary components of both liquid phases of the emulsion colloid system (i.e., more than only diluting) {2}
141  DF  .~.~.~ Aqueous-petroleum, petroleum-aqueous, aqueous-hydrocarbon, or hydrocarbon-aqueous emulsion systems {2}
142.~.~.~.~ The agent contains both organic and inorganic (except water) material

DEFINITION

Classification: 516/142

The agent contains both organic and inorganic (except water) material:

(under subclass 141) Subject matter in which the breaking (resolving) or inhibiting agent* contains both organic* material* and inorganic* (except water) materials*.

(1) Note. "Inorganic* (except water)" means water is not considered in the assessment of the composition of the inorganic* material*.

SEE OR SEARCH THIS CLASS, SUBCLASS:

116+, for similar subject matter related to breaking (resolving) or inhibiting of foams.

137, for similar subject matter in which the emulsion breaking (resolving) or inhibiting agent* contains a solid material*, e.g., solid adsorbent, absorbent, differential adherence surface, filter media, sharp edged particles.

SEE OR SEARCH CLASS

166, Wells, 244.1+, for processes of preventing emulsification or of breaking emulsions in a well, which includes significantly claimed process steps of well treating or well operation. See also the Notes and SEARCH CLASS references in Class 166 subclass 244.1.

210, Liquid Purification or Separation,

708, for processes in which an emulsion is treated by a chemical or physical agent to cause the discontinuous phase to coalesce, and cross-reference art collections 922+ for oil spill cleanup (e.g., cross-reference art collection 925 for using chemical agent).