(19)

(11)

EP 0 876 250 A1

(12)

(43) Date of publication: 11.11.1998 Bulletin 1998/46 (21) Application number: 96944865.0 (22) Date of filing: 18.12.1996

(51) International Patent Classification (IPC):  B29C 55/ 12( . ) C08J 5/ 18( . ) C08F 10/ 02( . ) (86) International application number: PCT/US1996/020180 (87) International publication number: WO 1997/022470 (26.06.1997 Gazette 1997/27)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL SE (30) Priority: 18.12.1995 US 19950008777P 22.11.1996 US 19960755105 (71) Applicants: EXXON CHEMICAL PATENTS INC. Wilmington, DE 19801 (US) Empire Films Development Company Pittsford, NY 14534 (US)

(72) Inventors: BRANT, Patrick Seabrook, TX 77586 (US) BRACKEEN, James, H. Houston, TX 77062 (US) TRUDELL, Barry, Collin Sarnia, Ontario N7S 5J2 (CA) RIRIE, James, I. Fairport, NY 14450 (US) BATES, Monty, K. Victor, NY 14564 (US) FISCHER, David, C. Pittsford, NY 14534 (US) (74) Representative: Atkinson, Peter Birch, et al  MARKS & CLERK, Sussex House, 83-85 Mosley Street Manchester M2 3LG Manchester M2 3LG (GB)