US PATENT SUBCLASS 585 / 266
.~ Hydrocarbon is aromatic

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

250  DF  ADDING HYDROGEN TO UNSATURATED BOND OF HYDROCARBON, I.E., HYDROGENATION {10}
266.~ Hydrocarbon is aromatic {3}
267  DF  .~.~> Using alkaline metal material
268  DF  .~.~> To produce polycyclic
269  DF  .~.~> Using Group VIII metal-containing catalyst with additional nonhydrocarbon agent {1}

DEFINITION

Classification: 585/266

Hydrocarbon is aromatic:

(under subclass 250) Subject matter which is directed to the hydrogenation of aromatic compounds, e.g., the hydrogenation of benzene to cyclohexane or cyclohexene, or of naphthalene to form 1,2,3,4-tetrahydronaphthalene and/or dechydro-naphthalene.

SEE OR SEARCH THIS CLASS, SUBCLASS:

940, for a hydrogenation or other process which results in the opening of a hydrocarbon ring.