(19)

(11)

EP 0 533 737 A1

(12)

(43) Date of publication: 31.03.1993 Bulletin 1993/13 (21) Application number: 91910760.0 (22) Date of filing: 11.06.1991

(51) International Patent Classification (IPC):  D06M 15/ 263( . ) D06M 17/ 00( . ) D06M 101/ 00( . ) D06M 101/ 30( . ) D06M 15/ 41( . ) D06N 7/ 00( . ) D06M 101/ 16( . ) D06M 101/ 34( . ) (86) International application number: PCT/US1991/003969 (87) International publication number: WO 1991/019849 (26.12.1991 Gazette 1991/29)

(84) Designated Contracting States: DE GB (30) Priority: 12.06.1990 US 19900536791 (71) Applicant: E.I. DU PONT DE NEMOURS AND COMPANY Wilmington Delaware 19898 (US)	(72) Inventor: VINOD, Yashavant, Vinayak Hockessin, DE 19707 (US) (74) Representative: Abitz, Walter, Dr.-Ing., et al  Patentanwälte Abitz & Partner Postfach 86 01 09 D-81628 München D-81628 München (DE)