(19)

(11)

EP 0 450 058 A1

(12)

(43) Date of publication: 09.10.1991 Bulletin 1991/41 (21) Application number: 90917161.0 (22) Date of filing: 15.10.1990

(51) International Patent Classification (IPC):  B32B 17/ 10( . ) G02B 27/ 01( . ) G02B 27/ 00( . ) B60K 35/ 00( . ) G09F 9/ 00( . ) (86) International application number: PCT/US1990/005901 (87) International publication number: WO 1991/006031 (02.05.1991 Gazette 1991/10)

(84) Designated Contracting States: BE CH DE ES FR GB IT LI LU SE (30) Priority: 16.10.1989 US 19890422141 27.09.1990 US 19900587459 (71) Applicant: LIBBEY-OWENS-FORD CO. Toledo, OH 43695 (US)	(72) Inventors: COHEN, Brian, E. Toledo, OH 43611 (US) GREENBERG, William, M. Oregon, OH 43616 (US) (74) Representative: Joly, Jean-Jacques, et al  Cabinet Beau de Loménie 158, rue de l'Université F-75340 Paris Cédex 07 F-75340 Paris Cédex 07 (FR)