Process of making polypeptide fibers

Details Process of making polypeptide fibers Process of making polypeptide fibers

2006-03-21

2006-03-21

Tentoni, Leo B. (Department: 1732)

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

C264S211120, C264S234000

Reexamination Certificate

active

07014807

ABSTRACT:
Process of making polypeptide fibers including the steps of contacting a polypeptide with a solution of formic acid a divalent metal ion salt, or contacting a decrystallized polypeptide with formic acid having a water content less than 3 wt % and concentrating the resulting solution to a polypeptide concentration greater than 10 wt %.

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S. S. Raje, Rekha V. D. and M. R. Mathur, Regeneration of Silk fibroin from Silk waste and its applications, Man-made Textiles in India (Apr. 1998), pp. 160-167.
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Steven Arcidiacono, Charlene M. Mello, Michelle Butler, Elizabeth Welsh, Jason W. Soares, Alfred Allen, David Ziegler, Thomas Laue and Susan Chase, Aqueous Processing and Fiber Spinning of Recombinant Spider Silks, Macromolecules, 35 (4), 1262-1266, 2002.

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