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1. (WO1997019207) PROCESS FOR THE PREPARATION OF REGENERATED CELLULOSE FILAMENTS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1997/019207 International Application No.: PCT/EP1996/004662
Publication Date: 29.05.1997 International Filing Date: 25.10.1996
Chapter 2 Demand Filed: 17.04.1997
IPC:
D01F 2/00 (2006.01) ,D01F 2/28 (2006.01)
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
2
Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
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
2
Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
24
from cellulose derivatives
28
from organic cellulose esters or ethers, e.g. cellulose acetate
Applicants:
MICHELIN RECHERCHE ET TECHNIQUE S.A. [CH/CH]; Route Louis Braille, 10-12 CH-1763 Granges-Paccot, CH (AllExceptUS)
VOS, Gerardus, Johannes, Hendricus [NL/NL]; NL (UsOnly)
KOENDERS, Bernardus, Maria [NL/NL]; NL (UsOnly)
BOERSTOEL, Hanneke [NL/NL]; NL (UsOnly)
Inventors:
VOS, Gerardus, Johannes, Hendricus; NL
KOENDERS, Bernardus, Maria; NL
BOERSTOEL, Hanneke; NL
Agent:
HIEBEL, Robert; Service SGD/LG/PI Ladoux F35 F-63040 Clermont-Ferrand Cedex 09, FR
Priority Data:
100169220.11.1995NL
Title (EN) PROCESS FOR THE PREPARATION OF REGENERATED CELLULOSE FILAMENTS
(FR) PROCEDE DE PREPARATION DE FILAMENTS DE CELLULOSE REGENERES
Abstract:
(EN) Process for the preparation of regenerated cellulose filaments from an anisotropic solution comprising cellulose formate, phosphoric acid, and formic acid in which the formed cellulose formate filaments are dried to a moisture content of not more than 15 % prior to regeneration and after regeneration the filaments are washed and dried under low tension. In this manner cellulose multifilament yarns of high breaking load and high elongation at break can be obtained, which in addition have a very regular linear density.
(FR) Ce procédé de préparation de filaments de cellulose régénérés, à partir d'une solution anisotrope comprenant du formiate de cellulose, de l'acide phosphorique ainsi que de l'acide formique, consiste à sécher les filaments de formiate de cellulose produits, afin d'obtenir une teneur en vapeur d'eau qui n'est pas supérieure à 15 % avant régénération, et après régénération, à laver et sécher les filaments sous basse tension. De cette manière on peut obtenir des fils à plusieurs filaments cellulosiques présentant une charge de rupture élevée, un fort allongement à la rupture, ainsi qu'en outre une densité linéaire très régulière.
Designated States: CN, JP, RU, US
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0864005RU02171866US5997790US6114037JP3929073 JP2000500535
CN1205746DE000069611539