(19)

(11)

EP 0 603 381 A1

(12)

(43) Date of publication: 29.06.1994 Bulletin 1994/26 (21) Application number: 93916281.0 (22) Date of filing: 11.06.1993

(51) International Patent Classification (IPC):  C08G 61/ 10( . ) H01B 1/ 12( . ) C08G 61/ 12( . ) (86) International application number: PCT/NL1993/000129 (87) International publication number: WO 1994/002532 (03.02.1994 Gazette 1994/04)

(84) Designated Contracting States: AT BE CH DE ES FR GB IT LI NL SE (30) Priority: 15.07.1992 NL 19920001277 (71) Applicant: DSM N.V. NL-6411 TE Heerlen (NL)	(72) Inventors: AAGAARD, Olav, Marcus NL-6228 DH Maastricht (NL) DE VRIES, Gerard, Peter NL-5802 KP Venray (NL) SCHELLEKENS, Ronald, Michael, Alexander, Maria NL-6241 DN Meersen (NL)