US PATENT SUBCLASS 516 / 145
.~.~.~.~.~ The compound contains phosphorus (e.g., sulfonated lecithin)


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}
143  DF  .~.~.~.~ The agent contains organic compound {5}
145.~.~.~.~.~ The compound contains phosphorus (e.g., sulfonated lecithin)


DEFINITION

Classification: 516/145

The compound contains phosphorus (e.g., sulfonated lecithin):

(under subclass 143) Subject matter in which the organic* compound contains phosphorus.

SEE OR SEARCH THIS CLASS, SUBCLASS:

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

SEE OR SEARCH CLASS

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).