US PATENT SUBCLASS 8 / 416
.~.~.~ Aryldiamine dye

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

404  DF  DYEING INVOLVING ANIMAL-DERIVED NATURAL FIBER MATERIAL (OTHER THAN SOLELY WOOL OR SILK), E.G., LEATHER, FUR, HAIR, FEATHERS, ETC., COMPOSITION, PROCESS, OR PRODUCT {2}
405  DF  .~ Hair dyeing {7}
406  DF  .~.~ Oxidation dye {7}
416.~.~.~ Aryldiamine dye

DEFINITION

Classification: 8/416

Aryldiamine dye:

(under subclass 406) Subject matter wherein an aryldiamine dye is used.

(1) Note. Included herein are, e.g., N-phenyl diaminobenzene (indoaniline), indamine, etc.

SEE OR SEARCH THIS CLASS, SUBCLASS:

410, for in situ synthesis of indoanilines and for in situ synthesis of indamine by the oxidation of a mixture of p-phenylene diamine and aniline.