US PATENT SUBCLASS 516 / 148
.~.~.~.~.~.~ The compound contains nitrogen, except if present solely as NH4+


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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}
146  DF  .~.~.~.~.~ The compound contains sulfoxy* (e.g., sulfonate terpene) {7}
148.~.~.~.~.~.~ The compound contains nitrogen, except if present solely as NH4+ {3}
149  DF  .~.~.~.~.~.~.~> The nitrogen is a ring member (e.g., imidazoline salt of an organosulfonic acid)
150  DF  .~.~.~.~.~.~.~> The compound contains -C(=O)NH or -S(O2)NHH where substitution may be made for the Hydrogen
151  DF  .~.~.~.~.~.~.~> The nitrogen is part of the cation of a salt formed with the organic compound containing sulfoxy* (e.g., triethanol amine salt, quaternary amine salt) {2}


DEFINITION

Classification: 516/148

The compound contains nitrogen, except if present solely as NH 4+:

(under subclass 146) Subject matter in which the organic* compound containing sulfoxy* also contains nitrogen, except for when the nitrogen is present solely as the cationic ammonium group, NH 4+.

SEE OR SEARCH THIS CLASS, SUBCLASS:

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