(19)

(11)

EP 0 261 158 A1

(12)

(43) Date of publication: 30.03.1988 Bulletin 1988/13 (21) Application number: 87901411.0 (22) Date of filing: 25.02.1987

(51) International Patent Classification (IPC):  A22C 25/ 14( . ) (86) International application number: PCT/DK1987/000020 (87) International publication number: WO 1987/005188 (11.09.1987 Gazette 1987/20)

(84) Designated Contracting States: BE DE FR GB IT NL SE (30) Priority: 27.02.1986 DK 19860000913 09.09.1986 DK 19860004301 (71) Applicant: AKTIESELSKABET A. ESPERSEN DK-3700 Ronne (DK)	(72) Inventor: GRONBECH, Carl-Erik DK-3700 Ronne (DK) (74) Representative: Patentanwälte Leinweber & Zimmermann  Rosental 7/II Aufg. D-80331 München D-80331 München (DE)