(19)

(11)

EP 1 536 943 A2

(12)

(88) Date of publication A3: 23.12.2004 (43) Date of publication: 08.06.2005 Bulletin 2005/23 (21) Application number: 03809512.1 (22) Date of filing: 03.09.2003

(51) International Patent Classification (IPC)7: B32B 1/08, B29D 22/00, B29D 23/00, B65D 85/48, B65D 43/12, B65D 43/20, G11B 15/68 (86) International application number: PCT/US2003/027562 (87) International publication number: WO 2004/038760 (06.05.2004 Gazette 2004/19)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR Designated Extension States: AL LT LV MK (30) Priority: 03.09.2002 US 407749 P (71) Applicant: Entegris, Inc. Chaska, MN 55318 (US)	(72) Inventor: EXTRAD, Charles, W. Minneapolis, MN 55419 (US) (74) Representative: Legg, Cyrus James Grahame et al ABEL & IMRAY,20 Red Lion Street London WC1R 4PQ London WC1R 4PQ (GB)