US PATENT SUBCLASS 516 / 60
.~.~.~.~ The nitrogen is a ring member

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}
53  DF  .~ Aqueous continuous liquid phase and discontinuous phase primarily organic liquid (e.g., organosilicon* oil- or mineral-oil*-in-water, o/w emulsion) {6}
58  DF  .~.~ The agent contains organic compound containing sulfoxy* (e.g., sodium lauryl sulfate) {5}
59  DF  .~.~.~ The compound contains nitrogen, except if present solely as NH4+ (e.g., isopropylammonium dodecylbenzene sulfonate) {3}
60.~.~.~.~ The nitrogen is a ring member

DEFINITION

Classification: 516/60

The nitrogen is a ring member:

(under subclass 59) Subject matter in which the nitrogen containing organic* compound contains a ring structure which includes nitrogen.

(1)

Note: In order to be considered a ring, nonionic bonding must exist between all ring members. Inner salt compounds such as betaines, sulfobetaines, etc., wherein two ring members are attached to each other by ionic bonding, are not regarded as rings for purposes of this subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

14, for a similar colloid system making or stabilizing agent* used in foam colloid system.

20, for a similar colloid system making or stabilizing agent* used in organic* liquid continuous phase with organic* liquid discontinuous phase (e.g., oil-in-oil emulsion).

26, for a similar colloid system making or stabilizing agent* used in organic* liquid continuous phase with inorganic* liquid discontinuous phase (e.g., water-in-oil emulsion). 31+, for a similar colloid system making or stabilizing agent* used in organic* liquid continuous phase with discontinuous phase primarily solid or semisolid.

41+, for a similar colloid system making or stabilizing agent* used in bituminous-in-aqueous emulsion.

77+, for a similar colloid system making or stabilizing agent* used in aqueous continuous phase with discontinuous phase primarily (nonbituminous) solid.