US PATENT SUBCLASS 585 / 268
.~.~ To produce polycyclic

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


585 /   HD   CHEMISTRY OF HYDROCARBON COMPOUNDS

250  DF  ADDING HYDROGEN TO UNSATURATED BOND OF HYDROCARBON, I.E., HYDROGENATION {10}
266  DF  .~ Hydrocarbon is aromatic {3}
268.~.~ To produce polycyclic

DEFINITION

Classification: 585/268

To produce polycyclic:

(under subclass 266) Subject matter wherein the product material has more than one ring in its molecule.

SEE OR SEARCH THIS CLASS, SUBCLASS:

360+, for a process in general for synthesizing polycyclic material having no aromatic ring.

400+, especially subclasses 406, 410+, 422+, and 431 for synthesis of polycyclic materials in which at least one ring is aromatic.