Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO1991018133) MELT SPINNING OF ULTRA-ORIENTED CRYSTALLINE FILAMENTS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/018133 International Application No.: PCT/US1991/003384
Publication Date: 28.11.1991 International Filing Date: 15.05.1991
Chapter 2 Demand Filed: 13.12.1991
IPC:
D01D 5/088 (2006.01) ,D01F 6/62 (2006.01)
D TEXTILES; PAPER
01
NATURAL OR ARTIFICIAL THREADS OR FIBRES; SPINNING
D
MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES, OR RIBBONS
5
Formation of filaments, threads, or the like
08
Melt-spinning methods
088
Cooling filaments, threads or the like, leaving the spinnerettes
D TEXTILES; PAPER
01
NATURAL OR ARTIFICIAL THREADS OR FIBRES; SPINNING
F
CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES, OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
6
Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
58
from homopolycondensation products
62
from polyesters
Applicants:
NORTH CAROLINA STATE UNIVERSITY [US/US]; 103 Holladay Hall Campus Box 7003 Raleigh, NC 27695-7003, US
Inventors:
CUCULO, John, A.; US
TUCKER, Paul, A.; US
CHEN, Gao-Yuan; US
LUNDBERG, Ferdinand; US
Agent:
LINKER, Raymond, O., Jr. ; Bell, Seltzer, Park & Gibson P.O. Drawer 34009 Charlotte, NC 28234, US
Priority Data:
525,87418.05.1990US
Title (EN) MELT SPINNING OF ULTRA-ORIENTED CRYSTALLINE FILAMENTS
(FR) FILATURE EN FUSION DE FILAMENTS CRISTALLINS ULTRA-ORIENTES
Abstract:
(EN) Ultra-oriented, crystalline synthetic filaments (2) with high tenacity are produced by extrusion of a fiber-forming synthetic polymer melt into a liquid isothermal bath (3) maintained at a temperature of at least 30 °C above the glass transition temperature of the polymer, withdrawing the filaments from the bath and then winding up the filaments. Polyethylene terephthalate filaments so produced at 3000-5000 m/min exhibit a crystalline structure and possess birefringence of 0.20-0.22, tenacity of 7-9 g/d, break elongation of 14-30 % and boil-off shrinkage of 5-10 %.
(FR) On produit des filaments synthétiques cristallins ultra-orientés (2) présentant une ténacité élevée, par extrusion d'une fusion de polymère synthétique fibrogène dans un bain isotherme liquide (3) maintenu à une température d'au moins 30 °C au-dessus de la température de transition du verre du polymère, par retrait des filaments du bain puis par enroulement de ces derniers. Les filaments de téréphtalate de polyéthylène ainsi produits entre 3000 et 5000 m/min présentent une structure cristalline et possèdent une biréfringence comprise entre 0,20 et 0,22, une ténacité comprise entre 7 et 9 g/d, un allongement de rupture compris entre 14 et 30 % ainsi qu'un rétrécissement de perte par évaporation compris entre 5 et 10 %.
Designated States: AT, AU, BB, BG, BR, CA, CH, DE, DK, ES, FI, GB, HU, JP, KP, KR, LK, LU, MC, MG, MW, NL, NO, RO, SD, SE, SU
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, ML, MR, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0528992CA2083291KR1001335620000*AU1991079961