(19)

(11)

EP 0 454 755 A1

(12)

(43) Date of publication: 06.11.1991 Bulletin 1991/45 (21) Application number: 90902407.0 (22) Date of filing: 05.01.1990

(51) International Patent Classification (IPC):  C11B 1/ 12( . ) C11B 13/ 00( . ) (86) International application number: PCT/SE1990/000012 (87) International publication number: WO 1990/008179 (26.07.1990 Gazette 1990/17)

(84) Designated Contracting States: BE DE ES FR GB IT NL (30) Priority: 20.01.1989 SE 19890000206 (71) Applicant: ERIKSSON, Felix S-832 00 Fröson (SE)	(72) Inventor: ERIKSSON, Felix S-832 00 Fröson (SE) (74) Representative: Johansson, Lars E., et al  AWAPATENT AB, Box 53 S-826 01 Söderhamn S-826 01 Söderhamn (SE)