US PATENT SUBCLASS 534 / 617
.~.~ Fiber- or substrate-reactive azo compound

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.~.~ Fiber- or substrate-reactive azo compound {5}
618  DF  .~.~.~> Formazan containing (i.e., HNH-N=CH-N=NH, wherein substitution may be made for hydrogen only)
619  DF  .~.~.~> Heavy metal or aluminum containing {2}
630  DF  .~.~.~> Halogen attached directly to a hetero ring or to an alicyclic ring by nonionic bonding {2}
639  DF  .~.~.~> Aziridine containing (including unsaturated)
640  DF  .~.~.~> Alkylene, alkenyl, alkenylene, alkynyl or alkynylene attached directly or indirectlyto a ring by nonionic bonding {3}

DEFINITION

Classification: 534/617

(under subclass 573) Compounds which are azo compounds having a group capable of reacting with a group of a fiber or a substrate to form a nonionic bond, e.g., reacting with a hydroxy group of cellulose or an amino group of a polyamide, etc.

(1) Note. Included herein are only those patents which distinctly disclose that an azo compound is "fiber - or substrate-reactive" or that a reaction occurs between a fiber or substrate and an azo dye.

(2) Note. An example of a compound provided for herein is: [figure]