US PATENT SUBCLASS 516 / 183
.~.~.~.~.~.~ The compound contains polymer of substituted or unsubstituted phenol and substituted or unsubstituted aldehyde

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

113  DF  COMPOSITIONS CONTAINING AN AGENT FOR BREAKING (RESOLVING) OR INHIBITING COLLOID SYSTEMS; PROCESSES OF BREAKING (RESOLVING) OR INHIBITING COLLOID SYSTEMS (E.G., GEL BREAKING OR INHIBITING, COAGULATING, FLOCCULATING); PROCESSES OF PREPARING THE COMPOSITIONS {3}
135  DF  .~ Continuous liquid phase colloid system and discontinuous liquid phase (e.g., breaking an emulsion) {4}
139  DF  .~.~ The agent contains material which is different from the primary components of both liquid phases of the emulsion colloid system (i.e., more than only diluting) {2}
141  DF  .~.~.~ Aqueous-petroleum, petroleum-aqueous, aqueous-hydrocarbon, or hydrocarbon-aqueous emulsion systems {2}
143  DF  .~.~.~.~ The agent contains organic compound {5}
181  DF  .~.~.~.~.~ The compound contains oxygen (e.g., cresylic acid) {5}
183.~.~.~.~.~.~ The compound contains polymer of substituted or unsubstituted phenol and substituted or unsubstituted aldehyde {1}
184  DF  .~.~.~.~.~.~.~> The compound contains carboxylic acid ester group

DEFINITION

Classification: 516/183

The compound contains polymer of substituted or unsubstituted phenol and substituted or unsubstituted aldehyde:

(under subclass 181) Subject matter in which the organic* compound which contains oxygen contains the polymeric or resinous reaction product of substituted or unsubstituted phenol with substituted or unsubstituted aldehyde.

SEE OR SEARCH THIS CLASS, SUBCLASS:

132+, for similar subject matter related to breaking (resolving) or inhibiting of foams.

SEE OR SEARCH CLASS

520, Synthetic Resins or Natural Rubbers, appropriate subclasses for (1) synthetic resins, per se, or (2) resin containing compositions, the use or utility of which is not specifically provided for elsewhere. As set forth in the section LINES WITH OTHER CLASSES AND WITHIN THIS CLASS in Class 252 definition, the subject matter of the Class 520 series is hierarchically superior to Class 516 for placement of ORs (original reference).

1, of Class 520 is the residual subclass for solid resin containing subject matter. See various subclasses for

aqueous or organic dispersions, latexes, or gels, of a polymer or natural or synthetic rubber, and methods of making or treating same.

521, Synthetic Resins or Natural Rubbers, 28, for a mixture of a synthetic ion exchange resin which may be in gel form, subclasses 50+ for cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, and subclasses 53+ for the gel of a porous synthetic resin.

523, Synthetic Resins or Natural Rubbers,

100, 181 for nonporous synthetic polymeric materials with specified functions or uses and for intentional composition, or process of preparing same, of specifically provided for special use, application, or property (e.g., subclass 171 for composition having opalescent, pearlescent, or variegated color or subclass 175 for liquid-solid drag reduction composition).

524, Synthetic Resins or Natural Rubbers,

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, cross-reference art collection 903 for art collection disclosing aerosol compositions, cross-reference art collection 916 for art collection disclosing hydrogel compositions, and cross-reference art collection 922 for art collection disclosing flocculating, clarifying, or fining compositions.

528, Synthetic Resins or Natural Rubbers--Part of the Class 520 Series, cross-reference art collections 934+ for subject matter relating to recovery and physical processing of natural rubber latex (particularly cross-reference art collection 936 for coagulating).