(19)

(11)

EP 0 910 422 A1

(12)

(43) Date of publication: 28.04.1999 Bulletin 1999/17 (21) Application number: 97914728.0 (22) Date of filing: 20.03.1997

(51) International Patent Classification (IPC):  A61M 15/ 00( . ) C08L 101/ 00( . ) B29C 45/ 00( . ) C08K 3/ 04( . ) H01C 7/ 02( . ) B29C 45/ 14( . ) (86) International application number: PCT/SE1997/000470 (87) International publication number: WO 1997/034653 (25.09.1997 Gazette 1997/41)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: LT LV RO SI (30) Priority: 22.03.1996 SE 19960001126 (71) Applicant: Astra Aktiebolag 151 85 Södertälje (SE)	(72) Inventor: WIDERSTRÖM, Carin S-236 38 Höllviken (SE)