Process for preparing polyacrylonitrile filaments having high te

Details Process for preparing polyacrylonitrile filaments having high te Process for preparing polyacrylonitrile filaments having high te

1987-07-08

1990-04-03

Lorin, Hubert C.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

264206, 2642106, 2642108, 264203, 264211, 26421116, D01F 618

Patent

active

049138707

ABSTRACT:
Polyacrylonitrile articles, such as filaments, tapes and films, having high tensile strength and modulus, and prepared by adding to a solution of polyacrilonitrile with a molecular weight above 3.times.10.sup.5, preferably above 5.times.10.sup.5, a minor amount of a bivalent metal compound, converting the solution into a solvent containing article, cooling this article to form a gel article, removing from this gel the solvent and metal compound, and stretching the resulting article at increased temperature. With this process filaments with a tensile strength above 1.2 GPa and a modulus above 16 GPa can be obtained.

REFERENCES:
patent: 4173606 (1979-11-01), Stoy et al.
patent: 4352852 (1982-10-01), DeMaria

Affiliated with

Also associated with

Rating

Process for preparing polyacrylonitrile filaments having high te 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 preparing polyacrylonitrile filaments having high te, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing polyacrylonitrile filaments having high te will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1356233