(19)
(11) EP 0 804 639 A1

(12)

(43) Date of publication:
05.11.1997 Bulletin 1997/45

(21) Application number: 95929496.0

(22) Date of filing: 10.08.1995
(51) International Patent Classification (IPC): 
C08G 75/ 32( . )
C08G 73/ 22( . )
D01D 4/ 02( . )
D01D 5/ 26( . )
 C08G 73/ 18( . )
C08G 75/ 00( . )
D01D 5/ 06( . )
D01F 6/ 74( . )
(86) International application number:
PCT/US1995/010271
(87) International publication number:
WO 1996/005341 (22.02.1996 Gazette 1996/09)
(84) Designated Contracting States:
BE DE ES FR GB IT NL

(30) Priority: 12.08.1994 JP 19940190635

(71) Applicant: THE DOW CHEMICAL COMPANY
Midland, Michigan 48640 (US)

(72) Inventors:
  • TANI, Katsuya
    Shiga-gun, Shiga 520-05 (JP)
  • IBA, Ihachiro
    Ohtsu City, Shiga 520-02 (JP)
  • FALEY, Timothy, L.
    Midland, MI 48640 (US)
  • MILLS, Michael, E.
    Midland, MI 48642 (US)
  • THUMMA, Ira, M.
    Shepherd, MI 48883 (US)

(74) Representative: Fleischer, Holm Herbert, Dr., et al 
Patentanwälte Sternagel & Fleischer Braunsberger Feld 29
51429 Bergisch Gladbach
51429 Bergisch Gladbach (DE)

   


(54) PROCESS FOR PREPARING POLYBENZAZOLE FILAMENTS AND FIBER