US PATENT SUBCLASS 516 / 186
.~.~.~.~.~.~.~ The compound contains -C(=O)OH or salt thereof (e.g., partial ester, fractional ester, 'blown fatty acid'*)

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}
185  DF  .~.~.~.~.~.~ The compound contains carboxylic acid ester group (e.g., lactone, natural (glyceride) oil, oxyalkylated 'blown fatty acid'*) {2}
186.~.~.~.~.~.~.~ The compound contains -C(=O)OH or salt thereof (e.g., partial ester, fractional ester, 'blown fatty acid'*) {1}
187  DF  .~.~.~.~.~.~.~>.~ The compound contains ether group {1}

DEFINITION

Classification: 516/186

The compound contains -C(=O)OH or salt thereof (e.g., partial ester, fractional ester, blown fatty acid *):

(under subclass 185) Subject matter in which the organic* compound which contains carboxylic acid ester group also contains -C(=O)OH group or salt thereof, such as, partial ester, fractional ester, blown fatty acid *.

(1) Note. -C(=O)OH group or salt thereof does NOT include carboxylic acid esters (-C(=O)OR where R is an organic* group).

(2) Note. Blown fatty acid * is oxidized fatty acids which have increased saponification value and acid value, and therefor are assumed to contain both acid and ester groups, which combination of groups is provided for in this subclass and its indents.

SEE OR SEARCH THIS CLASS, SUBCLASS:

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