(19)

(11)

EP 0 537 169 A1

(12)

(43) Date of publication: 21.04.1993 Bulletin 1993/16 (21) Application number: 91909285.0 (22) Date of filing: 04.05.1991

(51) International Patent Classification (IPC):  B29C 33/ 34( . ) B29C 44/ 46( . ) B29C 44/ 34( . ) B29C 67/ 00( . ) (86) International application number: PCT/EP1991/000858 (87) International publication number: WO 1992/019441 (12.11.1992 Gazette 1992/28)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IT LI NL SE (71) Applicant: Unifoam AG CH-8750 Glarus (CH)	(72) Inventor: MARLOWE, Delane Mooresville, NC 28115 (US) (74) Representative: Lerwill, John, et al  A.A. Thornton & Co. Northumberland House 303-306 High Holborn London, WC1V 7LE London, WC1V 7LE (GB)