US PATENT SUBCLASS 8 / 665
.~.~.~ Nitrosamine or N-diazo

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}
664  DF  .~.~ Stabilized or potential diazo compound {1}
665.~.~.~ Nitrosamine or N-diazo

DEFINITION

Classification: 8/665

Nitrosamine or N-diazo:

(under subclass 664) Subject matter in which the diazo derivative is a nitrosamine or a diazo-N-amino (includes imino) compound.

(1) Note. For example, nitrosamine is -N-N=O and N-diazo is-N-N=N-.

SEE OR SEARCH CLASS

534, Organic Compounds,

550, 555 for the compounds, per se.