(19)

(11)

EP 1 148 898 A1

(12)

(43) Date of publication: 31.10.2001 Bulletin 2001/44 (21) Application number: 00905734.0 (22) Date of filing: 27.01.2000

(51) International Patent Classification (IPC)7: A61L 27/50, A61L 27/54, A61L 29/14, A61L 29/16, A61L 31/14, A61L 31/16 (86) International application number: PCT/US0001/933 (87) International publication number: WO 0044/414 (03.08.2000 Gazette 2000/31)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: AL LT LV MK RO SI (30) Priority: 28.01.1999 US 117655 P (71) Applicant: UNION CARBIDE CHEMICALS & PLASTICS TECHNOLOGY CORPORATION Danbury,Connecticut 06817-0001 (US)	(72) Inventor: FAN, You-Ling Warren, NJ 07059 (US) (74) Representative: Raynor, John et al W.H. Beck, Greener & Co7 Stone BuildingsLincoln's Inn London WC2A 3SZ London WC2A 3SZ (GB)