(19)
(11) EP 0 658 229 A1

(12)

(43) Date of publication:
21.06.1995 Bulletin 1995/25

(21) Application number: 93903481.0

(22) Date of filing: 12.01.1993
(51) International Patent Classification (IPC): 
D21H 17/ 07( . )
D21H 17/ 66( . )
D21H 17/ 13( . )
D21H 17/ 70( . )
(86) International application number:
PCT/US1993/000320
(87) International publication number:
WO 1994/004752 (03.03.1994 Gazette 1994/06)
(84) Designated Contracting States:
AT DE ES FR GB IT NL SE

(30) Priority: 20.08.1992 US 19920932663

(71) Applicant: INDUSTRIAL PROGRESS, INC.
East Windsor, NJ 08520 (US)

(72) Inventor:
  • KALISKI, Adam F.
    East Windsor, NJ 08520 (US)

(74) Representative: Lindgaard, Harry, et al 
c/o Lehmann & Ree Grundtvigsvej 37
DK-1864 Frederiksberg C
DK-1864 Frederiksberg C (DK)

   


(54) ACID-TO-ALKALINE PAPERMAKING PROCESS