US PATENT SUBCLASS 8 / 667
.~.~.~ Nitroaromatic component

Current as of: June, 1999
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8 /   HD   BLEACHING AND DYEING; FLUID TREATMENT AND CHEMICAL MODIFICATION OF TEXTILES AND FIBERS

636  DF  DYE OR POTENTIAL DYE COMPOSITION, ADDITIVE, TREATMENT, PROCESS, PRODUCT, OR ANCILLARY DYE OPERATION {12}
662  DF  .~ Azo, acridone, or quinone dye {15}
666  DF  .~.~ Azo developed on the fiber {5}
667.~.~.~ Nitroaromatic component

DEFINITION

Classification: 8/667

Nitroaromatic component:

(under subclass 666) Subject matter wherein one azo dye component contains a nitro group directly bonded to a carbon of an aromatic ring.