(19)

(11)

EP 0 207 972 A1

(12)

(43) Date of publication: 14.01.1987 Bulletin 1987/03 (21) Application number: 86900619.0 (22) Date of filing: 09.01.1986

(51) International Patent Classification (IPC):  B29C 70/ 06( . ) B29C 70/ 86( . ) B29C 70/ 34( . ) B29L 31/ 06( . ) (86) International application number: PCT/GB1986/000014 (87) International publication number: WO 1986/004016 (17.07.1986 Gazette 1986/17)

(84) Designated Contracting States: DE FR GB IT NL (30) Priority: 09.01.1985 GB 19850000495 (71) Applicant: OXFORD MAGNET TECHNOLOGY LIMITED Osney Mead, Oxford, OX2 0DX (GB)	(72) Inventor: GILGRASS, Graham Harcourt Oxford (GB) (74) Representative: Skone James, Robert Edmund, et al  GILL JENNINGS & EVERY Broadgate House 7 Eldon Street London EC2M 7LH London EC2M 7LH (GB)