US PATENT SUBCLASS 8 / 595
.~.~ Tannins or tannic acid

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

550  DF  ORGANIC ADDITIVE FOR DYE COMPOSITION, DYE COMPOSITION CONTAINING ORGANIC ADDITIVE, PROCESS OR PRODUCT; OTHER THAN EMULSIFIER, PH ADJUSTER OR STARCH OR GUM PRINT PASTE THICKENER {24}
594  DF  .~ Carboxylic acid or salt thereof {3}
595.~.~ Tannins or tannic acid {1}
596  DF  .~.~.~> Contains heavy metal

DEFINITION

Classification: 8/595

Tannins or tannic acid:

(under subclass 594) Subject matter wherein the organic additive includes tannins or tannic acid.

(1) Note. Nutgall contains tannic acid and is classified herein.