US PATENT SUBCLASS 8 / 195
.~.~.~.~ Urea or thiourea

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

115.51  DF  CHEMICAL MODIFICATION OF TEXTILES OR FIBERS OR PRODUCTS THEREOF {7}
116.1  DF  .~ Cellulose fibers {8}
181  DF  .~.~ Treatment with nitrogen-containing organic compound {6}
194  DF  .~.~.~ Amide {1}
195.~.~.~.~ Urea or thiourea

DEFINITION

Classification: 8/195

(under subclass 194) Processes wherein the amide contains the grouping, shown below, where X=O or S. [figure]