(19)
(11) EP 1 315 688 A2

(12)

(88) Date of publication A3:
08.08.2002

(43) Date of publication:
04.06.2003 Bulletin 2003/23

(21) Application number: 01975023.1

(22) Date of filing: 07.09.2001
(51) International Patent Classification (IPC)7C05C 9/00, C07C 273/14
(86) International application number:
PCT/NL0100/663
(87) International publication number:
WO 0202/0471 (14.03.2002 Gazette 2002/11)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 07.09.2000 NL 1016123

(71) Applicant: Holland Novochem B.V.
3432 NX Nieuwegein (NL)

(72) Inventors:
  • VAN DER HOEVEN, John
    NL-3621 BB Breukelen (NL)
  • NOORDOVER, Johannes, Joseph
    NL-3822 EP Amersfoort (NL)
  • BIJPOST, Erik, Alexander
    NL-3436 ZD Nieuwegein (NL)
  • VELZEL, Arjen, Wim
    NL-1974 SP IJmuiden (NL)

(74) Representative: van der Kloet-Dorleijn, G.W.F. et al
Exter Polak & Charlouis B.V.P.O. Box 3241
2280 GE Rijswijk
2280 GE Rijswijk (NL)

   


(54) METHOD OF IMPROVING THE CRUSHING STRENGTH AND THE IMPACT RESISTANCE OF UREA, AND UREA COMPOSITION