US PATENT SUBCLASS 585 / 462
.~.~ Using halogen-containing catalyst

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

400  DF  AROMATIC COMPOUND SYNTHESIS {15}
446  DF  .~ By condensation of entire molecules or entire hydrocarbyl moieties thereof, e.g., alkylation, etc. {13}
462.~.~ Using halogen-containing catalyst {3}
463  DF  .~.~.~> Alumina containing
464  DF  .~.~.~> HF
465  DF  .~.~.~> B trifluoride in a complex or with additional nonhydrocarbon agent

DEFINITION

Classification: 585/462

Using halogen-containing catalyst:

(under subclass 446) Subject matter catalyzed by a material containing fluorine, chlorine, bromine, or iodine in free or combined form.