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(11)

EP 1 257 866 A1

(12)

(43) Date of publication: 20.11.2002 Bulletin 2002/47 (21) Application number: 00939330.7 (22) Date of filing: 23.05.2000

(51) International Patent Classification (IPC)7: G02B 27/22, G02B 3/00, G03C 9/02, G03F 9/00, G03B 35/24, B29D 11/00 (86) International application number: PCT/US0014/271 (87) International publication number: WO 0105/5776 (02.08.2001 Gazette 2001/31)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: AL LT LV MK RO SI (30) Priority: 25.01.2000 US 491103 (71) Applicant: 3M Innovative Properties Company Saint Paul, MN 55133-3427 (US)	(72) Inventors: LEE, Charles, C. Saint Paul, MN 55133-3427 (US) MORRIS, Terry, L. Saint Paul, MN 55133-3427 (US) ODEN, James, L. Saint Paul, MN 55133-3427 (US) (74) Representative: VOSSIUS & PARTNER  Siebertstrasse 4 81675 München 81675 München (DE)