(19)

(11)

EP 1 377 534 A2

(12)

(88) Date of publication A3: 23.10.2003 (43) Date of publication: 07.01.2004 Bulletin 2004/02 (21) Application number: 00963598.8 (22) Date of filing: 18.09.2000

(51) International Patent Classification (IPC)7: C06B 45/10 (86) International application number: PCT/US2000/025584 (87) International publication number: WO 2001/019757 (22.03.2001 Gazette 2001/12)

(84) Designated Contracting States: DE GB (30) Priority: 16.09.1999 US 154242 P 16.09.1999 US 154293 P (71) Applicant: AUTOMOTIVE SYSTEMS LABORATORY INC. Farmington HillsMichigan 48331 (US)	(72) Inventors: WILLIAMS, Graylon, K. Warren, MI 48093 (US) BURNS, Sean, P. Almont, MI 48003 (US) (74) Representative: Benson, John Everett  J. A. Kemp & Co.,14 South Square,Gray's Inn London WC1R 5JJ London WC1R 5JJ (GB)