(19)

(11)

EP 0 041 540 A1

(12)

(43) Date of publication: 16.12.1981 Bulletin 1981/50 (21) Application number: 81900104.0 (22) Date of filing: 10.11.1980

(51) International Patent Classification (IPC):  B41M 5/ 333( . ) B41M 5/ 323( . ) G03C 1/ 72( . ) B41M 5/ 32( . ) G03C 1/ 52( . ) (86) International application number: PCT/US1980/001506 (87) International publication number: WO 1981/001757 (25.06.1981 Gazette 1981/15)

(84) Designated Contracting States: AT CH DE FR GB LI NL SE (30) Priority: 07.12.1979 US 19790101144 07.12.1979 US 19790101197 (71) Applicant: MINNESOTA MINING AND MANUFACTURING COMPANY St. Paul, Minnesota 55133-3427 (US)	(72) Inventors: WINSLOW, John M. St. Paul, MN 55133 (US) GATZKE, Kenneth G. St. Paul, MN 55133 (US) (74) Representative: Bowman, Paul Alan, et al  LLOYD WISE, TREGEAR & CO. Norman House 105-109 Strand London WC2R OAE London WC2R OAE (GB)