(19)

(11)

EP 0 944 662 A1

(12)

(43) Date of publication: 29.09.1999 Bulletin 1999/39 (21) Application number: 97951605.0 (22) Date of filing: 10.12.1997

(51) International Patent Classification (IPC):  C08G 18/ 10( . ) C08G 18/ 75( . ) C08G 18/ 44( . ) D01F 6/ 70( . ) (86) International application number: PCT/US1997/022568 (87) International publication number: WO 1998/025986 (18.06.1998 Gazette 1998/24)

(84) Designated Contracting States: IT (30) Priority: 13.12.1996 JP 19960352793 (71) Applicant: DU PONT-TORAY COMPANY, LTD. Chuo-ku, Tokyo 103-0023 (JP)	(72) Inventors: ITO, Shingo Shiga 520 (JP) MATSUDA, Toshikazu Shiga 525 (JP) UMEZAWA, Masao Shiga 520-30 (JP) (74) Representative: R.A. KUHNEN & P.A. WACKER  Patentanwaltsgesellschaft mbH Alois-Steinecker-Strasse 22 85354 Freising 85354 Freising (DE)