US PATENT SUBCLASS 516 / 155
.~.~.~.~.~.~.~ The compound contains -C(=O)OH or salt thereof (e.g., partial ester, mixed ester, product of Twitchell process)


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}
146  DF  .~.~.~.~.~ The compound contains sulfoxy* (e.g., sulfonate terpene) {7}
154  DF  .~.~.~.~.~.~ The compound contains carboxylic acid ester group {2}
155.~.~.~.~.~.~.~ The compound contains -C(=O)OH or salt thereof (e.g., partial ester, mixed ester, product of Twitchell process)


DEFINITION

Classification: 516/155

The compound contains -C(=O)OH or salt thereof (e.g., partial ester, mixed ester, product of Twitchell process):

(under subclass 154) Subject matter in which the sulfoxy* containing organic* compound which contains a carboxylic acid ester group also contains -C(=O)OH or salt thereof, such as, partial ester, mixed ester, products of Twitchell process.

(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. Sulfonated glycerides are proper for this subclass since natural glycerides are mixed esters (contain acid group and ester group) and the sulfonation conditions typically do not alter these moieties.

SEE OR SEARCH THIS CLASS, SUBCLASS:

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