(19)
(11) EP 0 766 677 A1

(12)

(43) Date of publication:
09.04.1997 Bulletin 1997/15

(21) Application number: 95922602.0

(22) Date of filing: 19.06.1995
(51) International Patent Classification (IPC): 
C07D 251/ 68( . )
C11D 3/ 42( . )
D06P 1/ 382( . )
C08K 5/ 00( . )
D06L 3/ 12( . )
D21H 21/ 30( . )
(86) International application number:
PCT/GB1995/001428
(87) International publication number:
WO 1996/000220 (04.01.1996 Gazette 1996/02)
(84) Designated Contracting States:
AT BE CH DE ES FR GB IT LI NL SE

(30) Priority: 24.06.1994 GB 19940012756

(71) Applicant: HICKSON INTERNATIONAL PLC
Leeds LS7 2HG (GB)

(72) Inventor:
  • THOMPSON, John, Dennis
    West Yorkshire WF10 3JT (GB)

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

   


(54) S-TRIAZINYLAMINOSTILBENE DERIVATIVES AND THEIR USE AS OPTICAL WHITENING AGENTS