US PATENT SUBCLASS 516 / 54
.~.~ Three or more liquid phases (e.g., water-in-oil-in-water, w/o/w emulsion)

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}
54.~.~ Three or more liquid phases (e.g., water-in-oil-in-water, w/o/w emulsion)

DEFINITION

Classification: 516/54

Three or more liquid phases (e.g., water-in-oil-in-water, w/o/w emulsion):

(under subclass 53) Subject matter in which the colloid system contains three or more liquid phases of matter, such as water-in-oil-in-water emulsions.

SEE OR SEARCH THIS CLASS, SUBCLASS:

22, for a similar colloid system containing organic*-in-water-in-organic*.

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)).

210, Liquid Purification or Separation, 634+, for liquid/liquid solvent or colloid dispersion extraction.

366, Agitating,

108+, for apparatus wherein the agitation is effected by vibratory device, and subclasses 176.1+ for apparatus for forming suspensions or emulsions by agitation, cross-reference art collection 605 for mixing apparatus for stirring of paint. Processes which form colloid systems, such as emulsifying or foaming, are proper for compositions classes for the claimed specified use compositions, and for Class 516 for nonspecified use compositions (generic).

422, Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing,

41+, for processes of storage of liquid which may involve use of a colloid system such as an emulsion or foam spread on the surface of the liquid.

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.

504, Plant Protecting and Regulating Compositions, appropriate subclasses for a plant stimulating or eradicating composition; including colloid systems, wetting agents, subcombination compositions therefor, or appropriate methods which are claimed as specifically intended for such use.

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.

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.