(19)
(11) EP 1 105 573 A1

(12)

(43) Date of publication:
13.06.2001 Bulletin 2001/24

(21) Application number: 99932370.2

(22) Date of filing: 09.07.1999
(51) International Patent Classification (IPC)7D21H 21/10
(86) International application number:
PCT/US9915/541
(87) International publication number:
WO 0003/094 (20.01.2000 Gazette 2000/03)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 10.07.1998 US 92404 P

(71) Applicant: Calgon Corporation, a Corporation of the State of Delware
Naperville, Illinois 60563-1198 (US)

(72) Inventors:
  • RODRIGUEZ, Jose, M.
    Eatonton, GA 31024 (US)
  • VAUGHAN, Craig, W.
    Freedom, PA 15042 (US)
  • PANFIL, Daniel, J.
    Milledgeville, GA 31061 (US)

(74) Representative: Ebner von Eschenbach, Jennifer et al
c/o Ladas & Parry,Dachauerstrasse 37
80335 München
80335 München (DE)

   


(54) A MICROPARTICLE SYSTEM IN THE PAPER MAKING PROCESS