US PATENT SUBCLASS 516 / 916
.~.~ The compound contains repeating -(OCnH2n)- (i.e., repeating unsubstituted oxyalkylene)

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516 /   HD   COLLOID SYSTEMS AND WETTING AGENTS; SUBCOMBINATIONS THEREOF; PROCESSES OF

905  DF  AGENT COMPOSITION, PER SE, FOR COLLOID SYSTEM MAKING OR STABILIZING (E.G., FOAMING, EMULSIFYING, DISPERSING, GELLING; FOR WETTING AGENTS SEE 516/198+) {5}
914  DF  .~ The agent contains organic compound containing nitrogen, except if present solely as NH4+ {2}
916.~.~ The compound contains repeating -(OCnH2n)- (i.e., repeating unsubstituted oxyalkylene)

DEFINITION

Classification: 516/916

The compound contains repeating -(OC nH 2n)- (i.e., repeating unsubstituted oxyalkylene):

A collection of art under cross-reference art collection 914 in which the colloid system making or stabilizing agent* which contains organic* compound containing nitrogen also contains repeating -(OC nH 2n)- (i.e., repeating unsubstituted oxyalkylene), except for when the nitrogen is present solely as the cationic ammonium group, NH 4+.

(1) Note. "Repeating -(OC nH 2n)-" means 2 or more, bonded directly to each other. Thus, this subclass requires at least two ether linkages; monoether derivatives are located elsewhere.

SEE OR SEARCH THIS CLASS, SUBCLASS:

1+, for colloid system having a continuous gas or vapor phase (such as, smoke, fog, aerosol, cloud, mist) or method of making or stabilizing which employs as an agent* an organic* compound which contains nitrogen and also contains repeating -(OC nH 2n)- (i.e., repeating unsubstituted oxyalkylene), except for when the nitrogen is present solely as the cationic ammonium group, NH 4+.

15+, for colloid system of continuous liquid phase and a discontinuous gas or vapor phase (i.e., foam) or method of making or stabilizing which employs as an agent* an organic*

compound which contains nitrogen and also contains repeating -(OC nH 2n)- (i.e., repeating unsubstituted oxyalkylene), except for when the nitrogen is present solely as the cationic ammonium group, NH 4+.

27, for colloid system of primarily organic* continuous liquid phase and a discontinuous phase primarily inorganic* liquid (e.g., water-in-oil emulsion) or method of making or stabilizing which employs as an agent* an organic* compound which contains nitrogen and also contains repeating -(OC nH 2n)- (i.e., repeating unsubstituted oxyalkylene), except for when the nitrogen is present solely as the cationic ammonium group, NH 4+.

31+, for colloid system of primarily organic* continuous liquid phase and a discontinuous phase primarily solid or semisolid material* or method of making or stabilizing which employs as an agent* an organic* compound which contains nitrogen and also contains repeating -(OC nH 2n)- (i.e., repeating unsubstituted oxyalkylene), except for when the nitrogen is present solely as the cationic ammonium group, NH 4+. 43+, for colloid system of aqueous continuous liquid phase and a discontinuous phase primarily bituminous or method of making or stabilizing which employs as an agent* an organic* compound which contains nitrogen and also contains repeating -(OC nH 2n)- (i.e., repeating unsubstituted oxyalkylene), except for when the nitrogen is present solely as the cationic ammonium group, NH 4+.

67+, for colloid system of aqueous continuous liquid phase and a discontinuous phase primarily organic* liquid (e.g., oil-in-water emulsion) or method of making or stabilizing which employs as an agent* an organic* compound which contains nitrogen and also contains repeating -(OC nH 2n)- (i.e., repeating unsubstituted oxyalkylene), except for when the nitrogen is present solely as the cationic ammonium group, NH 4+.

77+, for colloid system of aqueous continuous liquid phase and a discontinuous phase primarily (non-bituminous) solid (e.g., water based suspensions, dispersions, sols) or method of making or stabilizing which employs as an agent* an organic* compound which contains nitrogen and also contains repeating -(OC nH 2n)- (i.e., repeating unsubstituted oxyalkylene), except for when the nitrogen is present solely as the cationic ammonium group, NH 4+.

98+, for subject matter relating to colloid system having a continuous or semicontinuous solid phase (i.e., systems which exhibit plasticity, elasticity, or rigidity), such as gel, paste, gelled emulsion, floc.

113+, for subject matter relating to breaking (resolving) or inhibiting a colloid system which employs as an agent* an organic* compound which contains nitrogen and also contains

repeating -(OC nH 2n)- (i.e., repeating unsubstituted oxyalkylene), except for when the nitrogen is present solely as the cationic ammonium group, NH 4+.