US PATENT SUBCLASS 516 / 150
.~.~.~.~.~.~.~ The compound contains -C(=O)NH or -S(O2)NHH where substitution may be made for the Hydrogen


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}
146  DF  .~.~.~.~.~ The compound contains sulfoxy* (e.g., sulfonate terpene) {7}
148  DF  .~.~.~.~.~.~ The compound contains nitrogen, except if present solely as NH4+ {3}
150.~.~.~.~.~.~.~ The compound contains -C(=O)NH or -S(O2)NHH where substitution may be made for the Hydrogen


DEFINITION

Classification: 516/150

The compound contains -C(=O)NHH or -S(O 2)NHH where substitution may be made for the hydrogen:

(under subclass 148) Subject matter in which the organic* compound contains -C(=O)NHH group or -S(O 2)NHH group where substitution may be made for the hydrogen.

(1) Note. This subclass includes amido and sulfonamido group containing compounds, such as, imido, sulfonimido, urea, sulfonated succinimide, condensation of ammonium, amine, or quaternary amine with an organic* acid, its ester or anhydride, or acyl halide.

SEE OR SEARCH THIS CLASS, SUBCLASS:

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