(19)

(11)

EP 0 563 291 A1

(12)

(43) Date of publication: 06.10.1993 Bulletin 1993/40 (21) Application number: 92903541.0 (22) Date of filing: 20.12.1991

(51) International Patent Classification (IPC):  C08F 8/ 50( . ) C08K 3/ 00( . ) C08K 5/ 00( . ) C08K 5/ 07( . ) C08L 23/ 02( . ) C08L 75/ 00( . ) C08J 11/ 10( . ) C08K 3/ 10( . ) C08K 5/ 05( . ) C08K 5/ 098( . ) C08L 25/ 00( . ) C08L 75/ 04( . ) (86) International application number: PCT/US1991/009731 (87) International publication number: WO 1992/011298 (09.07.1992 Gazette 1992/17)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IT LI LU NL SE (30) Priority: 21.12.1990 US 19900632362 (71) Applicant: ECOSTAR INTERNATIONAL L.P. Tonawanda, NY 14150-6645 (US)	(72) Inventors: CHAPMAN, Graham M. Bath, Avon BA2 7ER (GB) DOWNIE, Robert, H. Williamsville, NY 14221 (US) (74) Representative: Cropp, John Anthony David, et al  MATHYS & SQUIRE 100 Grays Inn Road London, WC1X 8AL London, WC1X 8AL (GB)