US PATENT SUBCLASS 8 / 532
.~ Polyester fiber and cellulose fiber

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

529  DF  MULTIPLE CHEMICALLY DIVERSE FIBERS OR FIBERS WITH DIFFERENT CROSS SECTION, PROCESS OF DYEING OR PRODUCT {5}
532.~ Polyester fiber and cellulose fiber

DEFINITION

Classification: 8/532

Polyester fiber and cellulose fiber:

(under subclass 529) Subject matter involving dyeing a blend of polyester fiber and cellulose fiber.

(1) Note. Polyester fiber is made by the reaction of a polyol and a poly-carboxylic acid or derivative.