(19)
(11) EP 0 239 583 A1

(12)

(43) Date of publication:
07.10.1987 Bulletin 1987/41

(21) Application number: 86905113.0

(22) Date of filing: 13.08.1986
(51) International Patent Classification (IPC): 
D21B 1/ 02( . )
D21B 1/ 16( . )
(86) International application number:
PCT/US1986/001659
(87) International publication number:
WO 1987/001746 (26.03.1987 Gazette 1987/07)
(84) Designated Contracting States:
BE DE FR GB IT SE

(30) Priority: 20.09.1985 US 19850778457

(71) Applicant: SCOTT PAPER COMPANY
Philadelphia, PA 19113 (US)

(72) Inventors:
  • GENTILE, Victor, Michael, Jr.
    Delaware County, Morton, PA 19070 (US)
  • WILDER, Harry, Douglas
    Chester County, Elverson, PA 19520 (US)

(74) Representative: McCall, John Douglas, et al 
W.P. THOMPSON & CO. Coopers Building Church Street
Liverpool L1 3AB
Liverpool L1 3AB (GB)

   


(54) METHOD OF PRETREATING PULP WITH STABILIZERS AND PEROXIDE PRIOR TO MECHANICAL REFINING