US PATENT SUBCLASS 516 / 160
.~.~.~.~.~.~ The compound contains substituted or unsubstituted benzene ring (e.g., sulfonated nonylphenol, ammonium salt of butylated naphthalene sulfonic 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}
146  DF  .~.~.~.~.~ The compound contains sulfoxy* (e.g., sulfonate terpene) {7}
160.~.~.~.~.~.~ The compound contains substituted or unsubstituted benzene ring (e.g., sulfonated nonylphenol, ammonium salt of butylated naphthalene sulfonic acid)

DEFINITION

Classification: 516/160

The compound contains substituted or unsubstituted benzene ring (e.g., sulfonated nonylphenol, ammonium salt of butylated naphthalene sulfonic acid):

(under subclass 146) Subject matter in which the sulfoxy* containing organic* compound also contains substituted or unsubstituted benzene ring, such as, sulfonated nonyl phenol, ammonium salt of butylated naphthalene sulfonic acid.

(1) Note. The agent* may be a mixture of sulfonated benzene ring containing compounds. However, if the feedstock for sulfonation was a mineral-oil* (see glossary definition) then the subject matter is located elsewhere.

SEE OR SEARCH THIS CLASS, SUBCLASS:

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

159, for subject matter wherein the agent* was derived from sulfonation of mineral-oil* feedstock.