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1. (WO1997016596) METHOD FOR PREPARING WHOLLY AROMATIC POLYAMIDE PULP
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1997/016596 International Application No.: PCT/KR1995/000175
Publication Date: 09.05.1997 International Filing Date: 27.12.1995
IPC:
C08G 69/32 (2006.01) ,D01F 6/60 (2006.01)
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
69
Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
02
Polyamides derived from amino carboxylic acids or from polyamines and polycarboxylic acids
26
derived from polyamines and polycarboxylic acids
32
from aromatic diamines and aromatic dicarboxylic acids with both amino and carboxylic groups aromatically bound
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
60
from polyamides
Applicants:
KOLON INDUSTRIES, INC. [KR/KR]; 45, Mugyo-dong Jung-gu Seoul 100-170, KR (AllExceptUS)
CHOE, Won, Jun [KR/KR]; KR (UsOnly)
RHIM, Moo, San [KR/KR]; KR (UsOnly)
CHUNG, Hoon, Ki [KR/KR]; KR (UsOnly)
Inventors:
CHOE, Won, Jun; KR
RHIM, Moo, San; KR
CHUNG, Hoon, Ki; KR
Agent:
RO, Wan, Goo; Kyongwon Building, 3rd floor 823-6, Yeocksam-dong Gangnam-gu Seoul 135-080, KR
Priority Data:
1995/3963103.11.1995KR
Title (EN) METHOD FOR PREPARING WHOLLY AROMATIC POLYAMIDE PULP
(FR) PROCEDE DE PREPARATION DE PATE DE POLYAMIDE TOTALEMENT AROMATIQUE
Abstract:
(EN) A method for preparing wholly aromatic polyamide pulp which comprises conferring an orientation to the polymer just before gelation of the polymer and ageing the gel, wherein the polymerization solvent is used as a heating medium for the ageing, can improve the physical properties of the pulp, such as molecular weight, crystallinity and development of fibril, as well as bring remarkable effects economically including exclusion of the processes for regenerating nitrogen and removing moisture, and low production cost. In addition, there is no danger of explosion of the liquid heating medium.
(FR) Cette invention concerne un procédé de préparation de pâte de polyamide totalement aromatique qui consiste à conférer au polymère une certaine orientation juste avant sa gélatinisation et le vieillissement du gel. Ce procédé, selon lequel le solvant de polymérisation sert de milieu caloporteur lors du vieillissement, peut améliorer les caractéristiques physiques de la pâte, telles que son poids moléculaire, sa cristallinité et son aptitude au développement de fibrilles. Ce procédé a également des conséquences économiques remarquables, notamment en ce qu'il permet d'exclure les processus de régénération d'azote et d'extraction d'humidité, et il entraîne une réduction des coûts de production. Il n'existe en outre aucun danger d'explosion du liquide caloporteur.
Designated States: BR, CN, JP, US
European Patent Office (DE, ES, FR, GB, IT, NL)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0801699CN1171828