US PATENT SUBCLASS 585 / 500
UNSATURATED COMPOUND SYNTHESIS

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

500UNSATURATED COMPOUND SYNTHESIS {14}
501  DF  .~> With measuring, sensing, testing, or synthesis operation control responsive to diverse condition
502  DF  .~> By addition of entire unsaturated molecules, e.g., polymerization, etc. {8}
534  DF  .~> Triple-bond product {3}
600  DF  .~> Product having more than two double bonds
601  DF  .~> Diolefin product {4}
634  DF  .~> With heat conservation or using solid or molten inert heat carrier, e.g., regenerative furnace, etc. {1}
636  DF  .~> Using apparatus of recited composition
637  DF  .~> By displacement of hydrocarbon radical by hydrocarbon molecule
638  DF  .~> From nonhydrocarbon feed {2}
643  DF  .~> By alkyl transfer, e.g., disproportionation, etc. {4}
648  DF  .~> By C content reduction, e.g., cracking, etc. {3}
654  DF  .~> By dehydrogenation {5}
664  DF  .~> By double-bond-shift isomerization {6}
671  DF  .~> By skeletal isomerization

DEFINITION

Classification: 585/500

UNSATURATED COMPOUND SYNTHESIS:

(under the class definition) Subject matter in which a hydrocarbon molecule is produced which has no ring configuration and is less than saturated with hydrogen, that is, is having less hydrogen than the formula CnH2n+2, which molecule was not present as the same structurally or empirically identical molecule at the beginning of the process.

SEE OR SEARCH CLASS

204, Chemistry: Electrical and Wave Energy,

157.15+, for chemical synthesis of a hydrocarbon compound by utilizing wave energy and subclasses 168+ for chemical

synthesis of a hydrocarbon compound by utilizing an electrostatic field or electrical discharge.

520, Synthetic Resins or Natural Rubbers, for processes of manufacturing synthetic resins which may be hydrocarbons.