(19)
(11) EP 0 020 601 A1

(12)

(43) Date of publication:
07.01.1981 Bulletin 1981/01

(21) Application number: 79901574.0

(22) Date of filing: 27.11.1979
(51) International Patent Classification (IPC): 
C08F 8/ 12( . )
C08B 37/ 14( . )
C08F 8/ 14( . )
C09D 9/ 04( . )
 C08B 1/ 00( . )
C08F 8/ 00( . )
C08F 218/ 08( . )
D21C 5/ 02( . )
(86) International application number:
PCT/GB1979/000202
(87) International publication number:
WO 1980/001085 (29.05.1980 Gazette 1980/12)
(84) Designated Contracting States:
DE FR GB NL SE

(30) Priority: 28.11.1978 GB 19460028078

(71) Applicants:
  • UNIVERSITY OF SURREY
    Guildford, Surrey GU2 5XH (GB)
  • Burstall, Michael Lyle
    Guildford Surrey (GB)
  • Mattingley, John
    Harrogate Yorkshire HG2 8NY (GB)
  • Collings, Christopher David
    Dover Kent (GB)

(72) Inventors:
  • BURSTALL, Michael, Lyle
    Guildford, Surrey (GB)
  • MATTINGLEY, John
    Harrogate, Yorkshire HG2 8NY (GB)
  • COLLINGS, Christopher, David
    Dover, Kent (GB)

(74) Representative: Corin, Christopher John, et al 
Mathisen Macara & Co. The Coach House 6-8 Swakeleys Road
Ickenham Uxbridge UB10 8BZ
Ickenham Uxbridge UB10 8BZ (GB)

   


(54) A PROCESS FOR DE-INKING PAPER PULP