US PATENT SUBCLASS 534 / 643
.~.~.~.~ Alkylene, alkenyl or alkenylene bonded directly to carboxamido, urea or -C(=X)-, wherein X is chalcogen, which group is between a ring and the alkylene, alkenyl or alkenylene

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

*  DD  ORGANIC COMPOUNDS (CLASS 532, SUBCLASS 1) {8}
573  DF  .~ Azo {51}
617  DF  .~.~ Fiber- or substrate-reactive azo compound {5}
640  DF  .~.~.~ Alkylene, alkenyl, alkenylene, alkynyl or alkynylene attached directly or indirectlyto a ring by nonionic bonding {3}
643.~.~.~.~ Alkylene, alkenyl or alkenylene bonded directly to carboxamido, urea or -C(=X)-, wherein X is chalcogen, which group is between a ring and the alkylene, alkenyl or alkenylene

DEFINITION

Classification: 534/643

(under subclass 640) Compounds wherein an alkylene, alkenyl or alkenylene chain is bonded directly to a -- group, wherein X is chalcogen (i.e., oxygen, sulfur, selenium or tellurium), to a -C, group or to a N--N group, which group is between the chain and a ring.

(1) Note. Examples of compounds provided for herein are: [figure] [figure]