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1. WO1996004413 - PROCESS OF MAKING POLYBENZAZOLE NONWOVEN FABRIC

Publication Number WO/1996/004413
Publication Date 15.02.1996
International Application No. PCT/US1995/009818
International Filing Date 02.08.1995
Chapter 2 Demand Filed 12.02.1996
IPC
D01D 5/12 2006.01
DTEXTILES; PAPER
01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF MAN-MADE FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
5Formation of filaments, threads, or the like
12Stretch-spinning methods
D01F 6/74 2006.01
DTEXTILES; PAPER
01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
FCHEMICAL FEATURES IN THE MANUFACTURE OF MAN-MADE FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
6Monocomponent man-made filaments or the like of synthetic polymers; Manufacture thereof
58from homopolycondensation products
74from polycondensates of cyclic compounds, e.g. polyimides, polybenzimidazoles
D04H 3/009 2012.01
DTEXTILES; PAPER
04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING
3Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
005Synthetic yarns or filaments
009Condensation or reaction polymers
CPC
D01F 6/74
DTEXTILES; PAPER
01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
6Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
58from homopolycondensation products
74from polycondensates of cyclic compounds, e.g. polyimides, polybenzimidazoles
D04H 3/10
DTEXTILES; PAPER
04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL
3Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
08characterised by the method of strengthening or consolidating
10with bonds between yarns or filaments made mechanically
Applicants
  • THE DOW CHEMICAL COMPANY [US/US]; 2030 Dow Center Abbott Road Midland, MI 48640, US (AllExceptUS)
  • YABUKI, Kazuyuki [JP/JP]; JP (UsOnly)
Inventors
  • YABUKI, Kazuyuki; JP
Agents
  • GALBRAITH, Ann, K.; The Dow Chemical Company Patent Dept. P.O. Box 1967 Midland, MI 48641-1967, US
Priority Data
6/18242003.08.1994JP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) PROCESS OF MAKING POLYBENZAZOLE NONWOVEN FABRIC
(FR) PROCEDE DE FABRICATION D'UNE ETOFFE NON TISSEE DE POLYBENZAZOLE
Abstract
(EN)
A continuous process for preparing nonwoven fabrics of polybenzazole filaments, which comprises spinning at least two polybenzazole dope filaments from a spinning head (1) simultaneously, through a quench chamber (2), over godet rolls (3), through an aspirator (4) and intermingling and depositing the filaments on a substantially planar collecting surface (5).
(FR)
L'invention concerne un procédé de préparation d'étoffes non tissées composées de filaments de polybenzazole consistant à soumettre deux filaments de pâte de polybenzazole à une opération de filage à partir d'une tête à filières (1); on fait passer lesdits filaments dans une chambre de refroidissement avant leur passage entre des godets de filage (3) et à travers un aspirateur (4); on soumet ensuite lesdits filaments à une opération qui vise à les mélanger intimement et à les déposer sur une surface collectrice plane.
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