(19)

(11)

EP 1 083 858 A2

(12)

(88) Date of publication A3: 24.02.2000 (43) Date of publication: 21.03.2001 Bulletin 2001/12 (21) Application number: 99940790.1 (22) Date of filing: 01.06.1999

(51) International Patent Classification (IPC)7: A61J 3/00 (86) International application number: PCT/US9911/968 (87) International publication number: WO 9963/547 (09.12.1999 Gazette 1999/49)

(84) Designated Contracting States: DE FR GB (30) Priority: 02.06.1998 US 87728 P (71) Applicant: THE DOW CHEMICAL COMPANY Midland, Michigan 48674 (US)	(72) Inventors: FRANK, R., Keith Lake Jackson, TX 77566 (US) SIM0N, Jaime County Road 605Angleton, TX 77515 (US) (74) Representative: Raynor, John et al W.H. Beck, Greener & Co7 Stone BuildingsLincoln's Inn London WC2A 3SZ London WC2A 3SZ (GB)