(19)
(11) EP 0 647 224 A1

(12)

(43) Date of publication:
12.04.1995 Bulletin 1995/15

(21) Application number: 94914394.0

(22) Date of filing: 18.04.1994
(51) International Patent Classification (IPC): 
C07D 213/ 20( . )
C07F 15/ 00( . )
G01N 21/ 78( . )
G01N 27/ 333( . )
C07D 213/ 40( . )
G01N 21/ 64( . )
G01N 24/ 08( . )
G01N 31/ 22( . )
(86) International application number:
PCT/EP1994/001192
(87) International publication number:
WO 1994/024126 (27.10.1994 Gazette 1994/24)
(84) Designated Contracting States:
AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE

(30) Priority: 21.04.1993 GB 19930008214

(71) Applicants:
  • KODAK LIMITED
    Harrow, Middlesex HA1 4TY (GB)
  • EASTMAN KODAK COMPANY
    Rochester, New York 14650-2201 (US)

(72) Inventors:
  • WEAR, Trevor John
    South Harrow, Middlesex HA2 8TD (GB)
  • MOORE, Christopher Peter
    Harrow, Middlesex HA2 9QL (GB)
  • GOULDEN, Alistair J.
    Oxford OX4 2BA (GB)
  • BEER, Paul, D.
    North Oxford OX2 8DF (GB)
  • FLETCHER, Nicholas C.
    Headington, Oxford OX3 7AF (GB)

(74) Representative: Nunney, Ronald Frederick Adolphe, et al 
Kodak Limited Patent Department Headstone Drive
Harrow Middlesex HA1 4TY
Harrow Middlesex HA1 4TY (GB)

   


(54) ION-SENSITIVE CALIXARENES