US PATENT SUBCLASS 8 / 634
.~ Halogen acids

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

618  DF  INORGANIC ADDITIVE FOR DYE COMPOSITION, DYE COMPOSITION CONTAINING INORGANIC ADDITIVE, PROCESS OR PRODUCT; OTHER THAN EMULSIFIER, PH ADJUSTER, WATER, NITROUS ACID FOR AZO COUPLING OR SULFUR REDUCING AGENT FOR VAT OR SULFUR DYE {17}
634.~ Halogen acids

DEFINITION

Classification: 8/634

Halogen acids:

(under subclass 618) Subject matter wherein the inorganic additive is a halogen containing acid.

(1) Note. Use merely as a pH adjuster is excluded herefrom.