US PATENT SUBCLASS 8 / 627
.~ Group VB metal (V, Nb, Ta)

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}
627.~ Group VB metal (V, Nb, Ta)

DEFINITION

Classification: 8/627

Group VB metal (V, Nb, Ta):

(under subclass 618) Subject matter wherein the inorganic additive contains at least one Group VB metal ( V, nb, Ta) atom.