US PATENT SUBCLASS 516 / 22
.~.~.~ Three or more phases (e.g., w/o emulsion also containing solid particle suspension)

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}
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}
22.~.~.~ Three or more phases (e.g., w/o emulsion also containing solid particle suspension)

DEFINITION

Classification: 516/22

Three or more phases (e.g., w/o emulsion also containing solid particle suspension):

(under subclass 21) Subject matter in which the colloid system contains three or more phases of matter, for example a water-in-oil emulsion further containing solid particulates, colloid-sized or otherwise.

SEE OR SEARCH THIS CLASS, SUBCLASS:

54, for emulsions containing three or more liquid phases where the outermost continuous phase is aqueous.

SEE OR SEARCH CLASS

73, Measuring and Testing,

53.01+, for liquid analysis or analysis of the suspension of solids in a liquid (particularly subclasses 61.44+ for determining content or effect of a constituent of a mixture of plural liquids (e.g., multiphase liquid)).

106, Compositions: Coating or Plastic, appropriate subclasses for coating or plastic compositions, and materials or ingredients used in the making of coating or plastic compositions, which may be emulsions, dispersions, suspensions, which are not elsewhere classified. 430, Radiation Imagery Chemistry: Process, Composition, or Product Thereof,

113, for image developing composition or product which is a multiple phase liquid carrier medium, such as an emulsion, for electric or magnetic imagery, subclasses 377+ for emulsifier in a coupling compound with silver compound sensitizer in a process of color imaging using a radiation sensitive composition, and subclass 493 for surfactant or emulsifier processing additive in a developer for nonradiation sensitive image processing compositions or process of making.

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, and subclasses 200+ for well treating compositions which may contain colloid systems (e.g., dispersions, suspensions, emulsions) or wetting agents.

508, Solid Antifriction Devices, Material Therefor, Lubricant or Separant Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions, appropriate subclasses for claimed or solely disclosed lubricants composed of water-in-oil emulsions. This class is organized based upon the chemical constituents or chemical reactants of the composition or device; no subclass specifically provides for colloid systems or wetting agents, therefore such subject matter would be placed based upon its constituents as though it were a solution or mixture having no colloid system characteristic.

524, Synthetic Resins or Natural Rubbers--Part of the Class 520 Series,

457+, for polymerizing an ethylenic monomer in the presence of a preformed SICP or solid polymer and in the presence of a nonreactive material so as to form an aqueous dispersion,

latex, suspension, or emulsion therewith, or product thereof, subclass 801 for process of preparing water-in-oil emulsion or dispersion, or product thereof.