(19)

(11)

EP 0 880 571 A1

(12)

(43) Date of publication: 02.12.1998 Bulletin 1998/49 (21) Application number: 96903789.0 (22) Date of filing: 05.02.1996

(51) International Patent Classification (IPC):  C10G 11/ 18( . ) C10G 51/ 06( . ) (86) International application number: PCT/US1996/001623 (87) International publication number: WO 1997/028233 (07.08.1997 Gazette 1997/34)

(84) Designated Contracting States: BE DE ES FR GB IT NL SE (71) Applicant: Ashland Inc. Ashland, KY 41114 (US)	(72) Inventor: HENTON, Lee, M. Lavalette, WV 15535 (US) (74) Representative: Weiss, Wolfgang, Dipl.-Chem. Dr., et al  Patentanwälte Weickmann & Partner, Kopernikusstrasse 9 81679 München 81679 München (DE)