(19)
(11) EP 0 888 251 A1

(12)

(43) Date of publication:
07.01.1999 Bulletin 1999/01

(21) Application number: 97945310.0

(22) Date of filing: 26.09.1997
(51) International Patent Classification (IPC): 
C02F 1/ 50( . )
(86) International application number:
PCT/US1997/017355
(87) International publication number:
WO 1998/013305 (02.04.1998 Gazette 1998/13)
(84) Designated Contracting States:
DE FR GB

(30) Priority: 27.09.1996 US 19960026844P
27.09.1996 US 19960026909P
15.09.1997 US 19970929909
15.09.1997 US 19970929980

(71) Applicant: Calgon Corporation
Pittsburgh, Pennsylvania 15205 (US)

(72) Inventors:
  • DONLAN, Rodney, M.
    Bridgeville, PA 15017 (US)
  • ELLIOTT, David, L.
    Imperial, PA 15126 (US)
  • KAPP, Nancy, J.
    Glenshaw, PA 15116 (US)
  • WIATR, Christopher, L.
    McMurray, PA 15317 (US)
  • REY, Paul, A.
    Moon Township, PA 15108 (US)
  • GILL, Jasbir, S.
    McKees Rocks, PA 15136 (US)
  • TEN EYCK, Peter, R.
    Wexford, PA 15090 (US)

(74) Representative: McCormack, Derek James, et al 
ECC International Ltd, Patents Department, c/o John Keay House
St Austell, Cornwall PL25 4DJ
St Austell, Cornwall PL25 4DJ (GB)

   


(54) COMPOSITIONS AND METHODS FOR REDUCING DEPOSIT FORMATION ON SURFACES