US PATENT SUBCLASS 8 / 116.4
.~.~ Treatment with aldehyde or ketone

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}
116.4.~.~ Treatment with aldehyde or ketone

DEFINITION

Classification: 8/116.4

(under subclass 116.1) Processes wherein the cellulose base is chemically modified by an aldehyde or ketone or substance liberating the same.

(1) Note. Where methylol compounds are employed for coating purposes and no chemical modification is stated to take place or apparently does so, the patents are placed in Class 427, Coating Processes.