(19)

(11)

EP 1 091 984 A1

(12)

(43) Date of publication: 18.04.2001 Bulletin 2001/16 (21) Application number: 99933644.9 (22) Date of filing: 01.07.1999

(51) International Patent Classification (IPC)7: C08F 210/16, C08F 210/06 (86) International application number: PCT/US9914/967 (87) International publication number: WO 0001/745 (13.01.2000 Gazette 2000/02)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 02.07.1998 US 108772 (71) Applicant: EXXON CHEMICAL PATENTS INC. Baytown, TX 77520-5200 (US)	(72) Inventors: GADKARI, Avinash, C. Houston, TX 77059 (US) COZEWITH, Charles, C. Bellaire, TX 77401 (US) (74) Representative: Veldhuizen, Albert Dirk Willem et al Exxon Chemical Europe Inc.Machelen Technology CenterHermeslaan 2 1831 Machelen 1831 Machelen (BE)