US PATENT SUBCLASS 8 / 694
.~.~ Aryl-(O=)S(=O)-N-

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}
694.~.~ Aryl-(O=)S(=O)-N-

DEFINITION

Classification: 8/694

Aryl-(O=)S(=O)-N-:

(under subclass 662) Subject matter wherein the dye contains an aryl-SO2-N- group.