(19)

(11)

EP 0 873 177 A1

(12)

(43) Date of publication: 28.10.1998 Bulletin 1998/44 (21) Application number: 96941252.0 (22) Date of filing: 21.11.1996

(51) International Patent Classification (IPC):  C10L 3/ 00( . ) (86) International application number: PCT/SE1996/001514 (87) International publication number: WO 1997/019746 (05.06.1997 Gazette 1997/24)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB IT LI NL SE (30) Priority: 28.11.1995 SE 19950004244 (71) Applicant: AGA AKTIEBOLAG 181 81 Lidingö (SE)	(72) Inventor: SVENSSON, Orvar S-183 39 Täby (SE) (74) Representative: Berglund, Stefan, et al  Bjerkéns Patentbyra KB Östermalmsgatan 58 114 50 Stockholm 114 50 Stockholm (SE)