US PATENT SUBCLASS 585 / 409
.~.~.~ Aromatic or carbonyl-containing reactant

Current as of: June, 1999
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585 /   HD   CHEMISTRY OF HYDROCARBON COMPOUNDS

400  DF  AROMATIC COMPOUND SYNTHESIS {15}
407  DF  .~ By ring formation from nonring moiety, e.g., aromatization, etc. {7}
408  DF  .~.~ Nonhydrocarbon feed {1}
409.~.~.~ Aromatic or carbonyl-containing reactant

DEFINITION

Classification: 585/409

Aromatic or carbonyl-containing reactant:

(under subclass 408) Subject matter in which material sent into the process, which supplies carbon atoms for the desired product, has a keto or aldehyde moiety and/or an aromatic ring or ring structure.