(19)

(11)

EP 0 885 104 A1

(12)

(43) Date of publication: 23.12.1998 Bulletin 1998/52 (21) Application number: 97908009.0 (22) Date of filing: 04.03.1997

(51) International Patent Classification (IPC):  B29C 41/ 04( . ) B29C 41/ 06( . ) B29C 41/ 00( . ) B29K 33/ 00( . ) (86) International application number: PCT/US1997/003366 (87) International publication number: WO 1997/032707 (12.09.1997 Gazette 1997/39)

(84) Designated Contracting States: BE DE ES FR GB IT NL (30) Priority: 04.03.1996 US 19960606473 (71) Applicant: MOBIL OIL CORPORATION Fairfax, Virginia 22037-0001 (US)	(72) Inventor: JOESTEN, Burdette, Lee Bridgewater, NJ 08807-1323 (US) (74) Representative: Hucker, Charlotte Jane  Gill Jennings & Every Broadgate House, 7 Eldon Street London EC2M 7LH London EC2M 7LH (GB)