Description
Class D01F : CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES, OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
Subclass 2/18: Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from viscose (preparation of alkali cellulose C08B) Composition of the spinning solution or the bath (preparing or dissolving cellulose xanthate C08B) Addition to the spinning solution of substances to influence ripening