(19)
(11) EP 1 042 409 A1

(12)

(43) Date of publication:
11.10.2000 Bulletin 2000/41

(21) Application number: 99956717.5

(22) Date of filing: 27.10.1999
(51) International Patent Classification (IPC)7: C09C 1/42, D21H 19/40, D21H 17/68
(86) International application number:
PCT/US9925/208
(87) International publication number:
WO 0026/306 (11.05.2000 Gazette 2000/19)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

(30) Priority: 03.11.1998 US 184875

(71) Applicant: ENGELHARD CORPORATION
Iselin,New Jersey 08830-0770 (US)

(72) Inventors:
  • HEN, John
    Macon, GA 31210 (US)
  • BERBERICH, Joseph, P.
    Barnegat, NJ 08005 (US)

(74) Representative: Fisher, Adrian John 
CARPMAELS & RANSFORD43 Bloomsbury Square
London WC1A 2RA
London WC1A 2RA (GB)

   


(54) COMPOSITION AND METHOD OF MAKING IMPROVED HIGH BULKING CLAYS