Dry spinning process for producing zein fibers

Details Dry spinning process for producing zein fibers Dry spinning process for producing zein fibers

1997-01-16

1998-05-12

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

D01F 400

Patent

active

057500649

ABSTRACT:
The disclosed invention relates to a process wherein zein fibers are prepared by contacting zein with a volatile solvent system and dry spinning into a gaseous atmosphere. This process obviates the need for environmentally unfriendly alkaline solutions and acid coagulating baths.

REFERENCES:
patent: 2156929 (1939-05-01), Swallen
patent: 2211961 (1940-08-01), Meigs
patent: 2429214 (1947-10-01), Biehn et al.
Y. Yang et al., "Formaldehyde-Free Zein Fiber-Preparation and Investigation", J. of Applied Polymer Science, vol. 59, 433-441 (1996).
C. B. Croston et al., "Zein Fibers . . . Preparation by Wet Spinning", Industrial and Engineering Chemistry, vol. 37, No. 12, 1194-1198 (1945).
C.D. Evans et al., "Solvents for Zein, Primary Solvents", Industrial and Engineering Chemistry, vol. 33, 1416-1417 (1941).
R. H. Manley et al., "Binary Solvents for Zein", Industrial and Engineering Chemistry, vol. 35, No. 6, 661-665 (1943).
C. D. Evans et al., Ternary Solvents for Zein:, INdustrial and Engineering Chemistry, vol. 36, No. 5, 408-410 (1944).

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