(19)

(11)

EP 0 929 391 A1

(12)

(43) Date of publication: 21.07.1999 Bulletin 1999/29 (21) Application number: 97944513.0 (22) Date of filing: 26.09.1997

(51) International Patent Classification (IPC):  B29C 45/ 26( . ) B29C 45/ 22( . ) B29C 45/ 16( . ) (86) International application number: PCT/US1997/017387 (87) International publication number: WO 1998/013188 (02.04.1998 Gazette 1998/13)

(84) Designated Contracting States: BE DE ES FR GB IT (30) Priority: 27.09.1996 US 19960027564P 21.07.1997 US 19970897459 (71) Applicant: BEMIS MANUFACTURING COMPANY Sheboygan Falls, Wisconsin 53085-901 (US)	(72) Inventors: BEMIS, Peter, F. Sheboygan, WI 53081 (US) KOLSTE, Steven, J. Sheboygan Falls, WI 53085 (US) ALBRECHT, Loren, C. Sheboygan, WI 53083 (US) SWART, Gerald, W. Sheboygan Falls, WI 53085 (US) (74) Representative: Carpenter, David  MARKS & CLERK, Alpha Tower, Suffolk Street Queensway Birmingham B1 1TT Birmingham B1 1TT (GB)