(19)

(11)

EP 0 731 827 A1

(12)

(43) Date of publication: 18.09.1996 Bulletin 1996/38 (21) Application number: 95904419.0 (22) Date of filing: 02.12.1994

(51) International Patent Classification (IPC):  C09K 8/ 28( . ) C09K 8/ 36( . ) C09K 8/ 34( . ) (86) International application number: PCT/EP1994/004033 (87) International publication number: WO 1995/015364 (08.06.1995 Gazette 1995/24)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 03.12.1993 GB 19930024834 (71) Applicant: EXXON CHEMICAL PATENTS INC. Linden, New Jersey 07036-0710 (US)	(72) Inventors: SOLLIE, Tor N-0495 Oslo (NO) CAERS, Raf B-2520 Edegem (BE) MATHYS, Georges, Marie, Karel B-3360 Bierbeek (BE) GODWIN, Allen, David Seabrook, TX 77586 (US) (74) Representative: Bawden, Peter Charles, et al  EXXON CHEMICAL LIMITED Exxon Chemical Technology Centre PO Box 1 Abingdon Oxfordshire OX13 6BB Abingdon Oxfordshire OX13 6BB (GB)