(19)
(11) EP 0 874 795 A1

(12)

(43) Date of publication:
04.11.1998 Bulletin 1998/45

(21) Application number: 97903762.0

(22) Date of filing: 03.01.1997
(51) International Patent Classification (IPC): 
C07C 17/ 21( . )
C07C 19/ 08( . )
(86) International application number:
PCT/US1997/000289
(87) International publication number:
WO 1997/025301 (17.07.1997 Gazette 1997/31)
(84) Designated Contracting States:
DE ES FR GB IT NL

(30) Priority: 05.01.1996 US 19960009871P
02.01.1997 US 19970778439

(71) Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
Wilmington Delaware 19898 (US)

(72) Inventors:
  • NAPPA, Mario, Joseph
    Newark, DE 19711 (US)
  • WILLIAMS, William, Robert
    New Fairfield, CT 06812 (US)

(74) Representative: Matthews, Derek Peter, et al 
Frank B. Dehn & Co., European Patent Attorneys, 179 Queen Victoria Street
London EC4V 4EL
London EC4V 4EL (GB)

   


(54) PROCESS FOR PRODUCING 1,1-DIFLUOROETHANE