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1. (WO2007038597) HIGH MODULUS POLYAMIDE FIBERS
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2007/038597 International Application No.: PCT/US2006/037674
Publication Date: 05.04.2007 International Filing Date: 27.09.2006
IPC:
D01D 1/00 (2006.01) ,D01D 5/06 (2006.01) ,C08G 73/02 (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
1
Treatment of filament-forming or like material
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
06
Wet spinning methods
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
73
Macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen, with or without oxygen or carbon, not provided for in groups C08G12/-C08G71/238
02
Polyamines
Applicants:
JUNG, Dongwook [KR/US]; US (UsOnly)
KOTEK, Richard [US/US]; US (UsOnly)
TONELLI, Alan, E. [US/US]; US (UsOnly)
VASANTHAN, Nadarajah [US/US]; US (UsOnly)
NORTH CAROLINA STATE UNIVERSITY [US/US]; 920 Main Campus Drive Suite 400 Campus Box 8210 Raleigh, NC 27695-8210, US (AllExceptUS)
Inventors:
JUNG, Dongwook; US
KOTEK, Richard; US
TONELLI, Alan, E.; US
VASANTHAN, Nadarajah; US
Agent:
JENKINS, Richard, E.; JENKINS, WILSON, TAYLOR & HUNT, P.A. Suite 1200, University Tower 3100 Tower Boulevard Durham, NC 27707, US
Priority Data:
60/721,83728.09.2005US
Title (EN) HIGH MODULUS POLYAMIDE FIBERS
(FR) FIBRES EN POLYAMIDE A HAUT MODULE
Abstract:
(EN) A process for preparing high initial modulus and high tensile strength polyamide fibers is described. The process comprises complexing the polyamide with a Lewis acid, dry-jet wet spinning the complexed fibers, drying the spun fibers for a period of time, drawing the fibers, and soaking the fibers in solvent to remove the Lewis acid. High molecular weight nylon 6,6 fibers prepared according to the described process show initial moduli of up to 30.1 GPa and tenacities of up to 2.5 GPa.
(FR) L'invention concerne un procédé de préparation de fibres en polyamide à module initial haut et à résistance à la traction élevée. Le procédé consiste à complexer le polyamide avec un acide de Lewis, à filer au mouillé par jets à sec les fibres complexées, à sécher les fibres filées pendant une certaine durée, à étirer les fibres et à les tremper dans un solvant afin d'éliminer l'acide de Lewis. Des fibres de nylon 6,6 à poids moléculaire élevé préparées selon le procédé selon l'invention présentent un module initial allant jusqu'à 30,1 GPa et des résistances à la rupture allant jusqu'à 2,5 GPa.
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Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)