Process for manufacturing filaments from an optically anisotropi

Details Process for manufacturing filaments from an optically anisotropi Process for manufacturing filaments from an optically anisotropi

1998-04-21

1999-08-31

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

D01D 506

Patent

active

059450541

ABSTRACT:
The invention pertains to a process for manufacturing filaments from an optically anisotropic spinning solution in which the spinning solution is extruded through spinning orifices grouped in at least one spinning section and the extrudates are passed through an inert gas and a coagulation bath in succession, with the ratio of the spacing of the spinning orifices to the width of the spinning section being more than 0.15 and less than 0.7, and the width of the spinning section being less than 5 mm. The invention makes it possible to spin a plurality of filaments of good physical properties at a high speed and a comparatively high acid concentration in the coagulant without widespread sticking.

REFERENCES:
patent: 4308374 (1981-12-01), Vollbracht et al.
patent: 4320081 (1982-03-01), Lammers
Derwent Patent Abstract 85-126242/21 (1985).
Translation of Japan 61-239,012 (1986).

Affiliated with

Also associated with

Rating

Process for manufacturing filaments from an optically anisotropi does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for manufacturing filaments from an optically anisotropi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for manufacturing filaments from an optically anisotropi will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2425845