US PATENT SUBCLASS 8 / 571
.~.~ Hetero N ring contains a sulfur atom (including hydrogenated)


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



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}
570  DF  .~ Five-membered hetero ring having two or more ring hetero atoms of which at least one is nitrogen {3}
571.~.~ Hetero N ring contains a sulfur atom (including hydrogenated)


DEFINITION

Classification: 8/571

Hetero N ring contains a sulfur atom (including hydrogenated):

(under subclass 570) Subject matter wherein the organic additive is a hetero compound having a five-membered ring with at least one nitrogen atom and at least one sulfur atom in the ring, e.g., a thiazole, etc., including hydrogenated compounds.