US PATENT SUBCLASS 585 / 469
.~ From nonhydrocarbon feed


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

400  DF  AROMATIC COMPOUND SYNTHESIS {15}
469.~ From nonhydrocarbon feed


DEFINITION

Classification: 585/469

From nonhydrocarbon feed:

(under subclass 400) Subject matter wherein a reactant which contributes atoms to the final product contains elements other than carbon and hydrogen.

SEE OR SEARCH THIS CLASS, SUBCLASS:

408, for an aromatic synthesis process involving a nonhydrocarbon feed and ring formation from a nonring moiety, e.g., cyclic polymerization of benzophenone to produce 1,3,5-triphenyl benzene, etc.