(19)

(11)

EP 0 292 522 A1

(12)

(43) Date of publication: 30.11.1988 Bulletin 1988/48 (21) Application number: 87907803.0 (22) Date of filing: 03.12.1987

(51) International Patent Classification (IPC):  B41M 5/ 145( . ) C07D 307/ 88( . ) C07D 491/ 052( . ) C09B 57/ 00( . ) B41M 5/ 327( . ) C07D 491/ 00( . ) C09B 23/ 00( . ) (86) International application number: PCT/GB1987/000871 (87) International publication number: WO 1988/004296 (16.06.1988 Gazette 1988/13)

(84) Designated Contracting States: CH DE GB LI (30) Priority: 03.12.1986 GB 19860028914 (71) Applicant: The Wiggins Teape Group Limited Basingstoke Hampshire RG21 2EE (GB)	(72) Inventor: SHANTON, Kenneth, John Buckinghamshire (GB) (74) Representative: Farwell, William Robert, et al  PHILLIPS & LEIGH 7 Staple Inn High Holborn London WC1V 7QF London WC1V 7QF (GB)