US PATENT SUBCLASS 208 / 335
.~.~.~.~ Aromatic

Current as of: June, 1999
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208 /   HD   MINERAL OILS: PROCESSES AND PRODUCTS

308  DF  FRACTIONATION {5}
311  DF  .~ Liquid extraction with solvents {11}
322  DF  .~.~ Organic solvent containing {8}
333  DF  .~.~.~ Oxy compound {2}
335.~.~.~.~ Aromatic

DEFINITION

Classification: 208/335

(under subclass 333) Processes wherein an aromatic oxy compound is employed.

(1) Note. This subclass contains, for example, extraction processes using phenols or phenolates.