(19)

(11)

EP 1 010 042 A1

(12)

(43) Date of publication: 21.06.2000 Bulletin 2000/25 (21) Application number: 97939753.6 (22) Date of filing: 03.09.1997

(51) International Patent Classification (IPC)7: G03H 1/16 (86) International application number: PCT/US9715/447 (87) International publication number: WO 9912/079 (11.03.1999 Gazette 1999/10)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (71) Applicant: Erim International, Inc. Ann Arbor,Michigan 48113-4008 (US)	(72) Inventor: MARRON, Joseph, C. Brighton, MI 48116 (US) (74) Representative: Archer, Philip Bruce  Urquhart-Dykes & LordEuropean Patent AttorneysNew Priestgate House57 Priestgate PeterboroughCambridgeshire PE1 1JX PeterboroughCambridgeshire PE1 1JX (GB)