Butyrylation of viscose fibers with retention of fibrous structure; macro-homogeneous partially butyrylated fibers can be obtained by preliminary activation of original viscose fibers by 35 to 38% aqueous urea solution followed by acylation by mixture of butyric anhydride and potassium acetate or butyrate catalyst; optimal process conditions are -- activation of original fibers for 30 to 60 min at 20 C, followed by butyrylation for 10 min at 140 C under atmospheric pressure. (See also Zhurnal Prikladnoi Khimii v 41 n 2 Feb 1968 p 351-7) (03800)
Butirilirovanie viskoznogo volokna s sokhraneniem voloknistoi struktury
Butirilirovanie viskoznogo volokna s sokhraneniem voloknistoi struktury
Journal of Applied Chemistry of the USSR ; 41 , n 2
1968
5 pages
Aufsatz (Zeitschrift)
Englisch
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