US PATENT SUBCLASS 516 / 905
AGENT COMPOSITION, PER SE, FOR COLLOID SYSTEM MAKING OR STABILIZING (E.G., FOAMING, EMULSIFYING, DISPERSING, GELLING; FOR WETTING AGENTS SEE 516/198+)

Current as of: June, 1999
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516 /   HD   COLLOID SYSTEMS AND WETTING AGENTS; SUBCOMBINATIONS THEREOF; PROCESSES OF

905AGENT COMPOSITION, PER SE, FOR COLLOID SYSTEM MAKING OR STABILIZING (E.G., FOAMING, EMULSIFYING, DISPERSING, GELLING; FOR WETTING AGENTS SEE 516/198+) {5}
906  DF  .~> The agent contains organic compound containing silicon
907  DF  .~> The agent contains organic compound containing phosphorus (e.g., lecithin) {1}
909  DF  .~> The agent contains organic compound containing sulfoxy* {2}
914  DF  .~> The agent contains organic compound containing nitrogen, except if present solely as NH4+ {2}
917  DF  .~> The agent contains organic compound containing oxygen {3}

DEFINITION

Classification: 516/905

AGENT COMPOSITION, PER SE, FOR COLLOID SYSTEM MAKING OR STABILIZING (E.G., FOAMING, EMULSIFYING, DISPERSING, GELLING; FOR WETTING AGENTS SEE 516/198+):

(under the class definition) A collection of art which discloses a per se composition containing a colloid system making or stabilizing agent* (e.g., foaming, emulsifying, dispersing, gelling), i.e., a composition containing said agent* and lacking both dispersant* and dispersand*.

SEE OR SEARCH THIS CLASS, SUBCLASS:

1+, for subject matter relating to colloid systems having a continuous gas or vapor phase, such as smoke, fog, aerosol, cloud, mist, aerosolizing.

9+, for subject matter relating to colloid systems based on continuous liquid phase (e.g., foams, emulsions, suspensions, dispersions).

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.

SEE OR SEARCH CLASS 252, Compositions, for all those compositions for which there is no provision elsewhere in the USPCS; including those compositions (or appropriate methods) which are claimed as specifically intended for a special use or function, but which, if only generically claimed, would be proper for Class 516, provided that subject matter is hierarchically superior within Class 252. Areas known to have documents related to colloid systems or wetting agents include:

3, 6.5, 8.05 for fire extinguishing foams, subclasses 610+ for fire retarding compositions in the form of dispersion or colloid system, subclasses 8.57, 8.61+, 8.81+, and 8.91+ for various specialized compositions for leather, fur, or textile treating, subclass 61 for froth flotation compositions used in physical separation, subclasses 182.11+ for compositions containing a single reactant or plural reactants specialized or designed for use in subsequent reactions with other materials, but not with each other (e.g., for producing foams), subclasses 186.1+ for compositions for bleaching by oxidation, or in other oxidation of extraneous substances, or in generating oxygen, subclasses 175+ for compositions for treating water to soften or purify it, to precipitate impurities in it, or to inhibit formation of scale or incrustation in steam boilers or other water containers, subclass 194 for a composition which is designed to remove or bind water which may be in the form of a gel or which forms a

gel, subclass 363.5 for finely divided solids combined with an agent to facilitate dispersion, subclass 367.1 for soap containing compositions (these are alkali-metal (i.e., Li, Na, K, Rb, or Cs) salts of unsubstituted or hydroxy-substituted, saturated or unsaturated, higher fatty acids, or of rosin (abietic) acids) which are of general utility and lack any shape or structure to adapt them for use as cleaning agents, subclasses 610+ for fire retarding compositions in the form of dispersion or colloid system, subclasses 634+ for radioactive compositions in the form of sol solution or gel.

507, Earth Boring, Well Treating, and Oil Field Chemistry,

90, for compositions for addition to petroleum oils during transportation through conduits to prevent fouling or clogging of the conduits due to components of the petroleum oils precipitating out during the transportation (e.g., suspending agents, antiflocculants), subclasses 100+ for earth boring compositions which may contain colloid systems (e.g., dispersions, suspensions, emulsions) or wetting agents (especially subclass 102 for compositions which may contain foam), subclasses 200+ for well treating compositions which may contain colloid systems (e.g., dispersions, suspensions, emulsions) or wetting agents (especially subclass 202 for compositions which may contain foam), cross-reference art collection 922+ for fracture fluids which may be gels.

510, Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions, appropriate subclasses for claimed or solely disclosed cleaning compositions for cleaning or removing foreign matter from solid surfaces which may be gel or paste. Although various subclasses specifically provide for colloid systems or wetting agents, such subject matter may be placed based upon another criterion, such as its chemical constitution (i.e., as though it has no colloid system characteristic). Areas known to have documents related to the per se surfactants used in colloid systems or wetting agents include:

405+, for liquid cleaning compositions, especially for chemically specified surfactants (particularly subclass 406 for gas-propelled, subclass 417 for plural immiscible liquid phases (e.g., emulsion, oily and aqueous layers), subclass 418 for liquid and solid phases (e.g., suspension, slurry)), subclass 514 for dishwasher rinse composition which may be a wetting agent, subclasses 535 for surfactant compositions (other that raw soap) which are specialized for use in cleaning compositions together with other auxiliary components (particularly subclass 537 for liquid or paste).

530, Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof, appropriate subclasses for colloid systems such as gel-like proteins; Areas known to have documents related to colloid systems or wetting agents include:

200+, for natural resin derivatives which are not pure compounds, and processes of treating natural resins or derivatives (e.g., wood, gum, and tall oil rosin; wood or pine tar or pitch; shellac; copals from various sources, both recent and fossil, such as Congo, Manila, etc.; amber; dammar; kauri; coal resin; gum accroides; sandarac; cativo resin).