(19)

(11)

EP 0 032 488 A1

(12)

(43) Date of publication: 29.07.1981 Bulletin 1981/30 (21) Application number: 80901073.0 (22) Date of filing: 24.06.1980

(51) International Patent Classification (IPC):  B29C 45/ 00( . ) G03B 11/ 00( . ) B29C 53/ 02( . ) B29C 69/ 02( . ) B29C 33/ 00( . ) B29C 65/ 08( . ) (86) International application number: PCT/GB1980/000106 (87) International publication number: WO 1981/000077 (22.01.1981 Gazette 1981/02)

(84) Designated Contracting States: AT CH DE FR GB LI LU NL SE (30) Priority: 27.06.1979 GB 19790022395 (71) Applicant: DOWNEY PLASTICS LIMITED Newhaven East Sussex, BN9 0AG (GB)	(72) Inventor: DOWNEY, Derek Anthony Saltdean East Sussex (GB) (74) Representative: Lloyd, Barry George William  G.F. REDFERN & COMPANY Marlborough Lodge 14 Farncombe Road Worthing, West Sussex BN11 2BT Worthing, West Sussex BN11 2BT (GB)