US PATENT SUBCLASS 516 / 26
.~.~.~.~ The organic compound contains nitrogen, except if present solely as NH4+

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


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}
20  DF  .~ Primarily organic continuous liquid phase (e.g., organic liquid emulsified in an organic liquid) {2}
21  DF  .~.~ Discontinuous phase primarily inorganic liquid (e.g., water-in-oil emulsion, w/o) {6}
25  DF  .~.~.~ The agent contains organic compound containing sulfoxy* {1}
26.~.~.~.~ The organic compound contains nitrogen, except if present solely as NH4+

DEFINITION

Classification: 516/26

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

(under subclass 25) Subject matter in which said 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:

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).

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.

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