(19)

(11)

EP 0 667 756 A1

(12)

(43) Date of publication: 23.08.1995 Bulletin 1995/34 (21) Application number: 93921531.0 (22) Date of filing: 10.09.1993

(51) International Patent Classification (IPC):  A61F 5/ 058( . ) A61L 15/ 07( . ) B32B 7/ 06( . ) A61F 13/ 04( . ) A61L 15/ 12( . ) (86) International application number: PCT/US1993/008617 (87) International publication number: WO 1994/010946 (26.05.1994 Gazette 1994/12)

(84) Designated Contracting States: DE FR GB IT (30) Priority: 06.11.1992 US 19920973050 12.08.1993 US 19930105703 (71) Applicant: MINNESOTA MINING AND MANUFACTURING COMPANY St. Paul, Minnesota 55133-3427 (US)	(72) Inventors: ALLENBERG, Kurt Saint Paul, MN 55133-3427 (US) SCHOLZ, Matthew, T. Saint Paul, MN 55133-3427 (US) EDGAR, Jason, L. Saint Paul, MN 55133-3427 (US) (74) Representative: von Kreisler, Alek, Dipl.-Chem., et al  Patentanwälte von Kreisler-Selting-Werner Postfach 10 22 41 D-50462 Köln D-50462 Köln (DE)