Method of preparing polyvinyl alcohol fibers having improved pro

Details Method of preparing polyvinyl alcohol fibers having improved pro Method of preparing polyvinyl alcohol fibers having improved pro

1973-04-11

1976-10-19

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

With prevention of equipment fouling accumulations or deposits

264185, D01D 110

Patent

active

039871401

ABSTRACT:
Disclosed is a method for preparing polyvinyl alcohol fibers which comprises spinning an aqueous solution of polyvinyl alcohol containing boric acid or a borate and from about 0.01-5 weight per cent based on said polyvinyl alcohol of an additive comprising an amino acid, an amine, salicylic acid and derivatives thereof or a derivative of pyridine into an alkaline coagulation bath, and subsequently treating the resultant spun fiber by roller drawing, neutralizing with acid, wet hot drawing, washing with water, drying and dry hot drawing.

REFERENCES:
patent: 2345570 (1944-04-01), Bley
patent: 2878208 (1959-03-01), Holmes et al.
patent: 2888318 (1959-05-01), Parker
patent: 2962476 (1960-11-01), Verburg
patent: 3063787 (1962-11-01), Rynkiewicz et al.
patent: 3660556 (1972-05-01), Ashikaga et al.
patent: 3776994 (1973-12-01), Yoshioka et al.
Hackh's Chemical Dictionary, Fourth Ed., p. 605.

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