US PATENT SUBCLASS 570 / 199
.~.~.~ Bonding benzene rings to the same acyclic carbon or to an acyclic carbon chain

Current as of: June, 1999
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570 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {1}
101  DF  .~ HALOGEN CONTAINING {21}
190  DF  .~.~ Processes of preparing, purifying, or recovering benzene ring containing compound {9}
199.~.~.~ Bonding benzene rings to the same acyclic carbon or to an acyclic carbon chain

DEFINITION

Classification: 570/199

Bonding benzene rings to the same acyclic carbon or to an acyclic carbon chain:

(under subclass 190) Process wherein plural benzene rings are bonded to the same carbon atom which is not part of any ring or are bonded to each other through a chain of two or more carbon atoms, none of which is a part of any ring.