(19)

(11)

EP 0 821 809 A1

(12)

(43) Date of publication: 04.02.1998 Bulletin 1998/06 (21) Application number: 96914949.0 (22) Date of filing: 17.04.1996

(51) International Patent Classification (IPC):  G02F 1/ 313( . ) G02F 1/ 065( . ) G02F 1/ 01( . ) (86) International application number: PCT/EP1996/001636 (87) International publication number: WO 1996/033441 (24.10.1996 Gazette 1996/47)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB IE IT LI LU NL PT SE (30) Priority: 18.04.1995 EP 19950200965 (71) Applicant: Akzo Nobel N.V. 6824 BM Arnhem (NL)	(72) Inventor: KLEIN KOERKAMP, Hermanus, Marcellinus, Maria NL-7546 KB Enschede (NL) (74) Representative: Schalkwijk, Pieter Cornelis, et al  Akzo Nobel N.V., Patent & Trademark Department, P.O. Box 76 6824 BM Arnhem 6824 BM Arnhem (NL)