(19)
(11) EP 1 474 367 A1

(12)

(43) Date of publication:
10.11.2004 Bulletin 2004/46

(21) Application number: 03704557.2

(22) Date of filing: 06.02.2003
(51) International Patent Classification (IPC)7: C04B 18/04, C09K 17/06
(86) International application number:
PCT/EP2003/001173
(87) International publication number:
WO 2003/070657 (28.08.2003 Gazette 2003/35)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR
Designated Extension States:
AL LT LV MK RO

(30) Priority: 21.02.2002 US 358667 P

(71) Applicant: TIOXIDE GROUP SERVICES LIMITED
London W14 0QL (GB)

(72) Inventors:
  • TOOZE, Judith Frances
    Cleveland TS20 1EA (GB)
  • NOBLE, Brian Cameron
    Cleveland TS17 0YR (GB)
  • AUGUST, Alfred Edward
    4004 Durban (ZA)

(74) Representative: Lawrence, John et al
Barker Brettell,138 Hagley Road,Edgbaston
Birmingham B16 9PW
Birmingham B16 9PW (GB)

   


(54) RED GYPSUM IN CIVIL ENGINEERING APPLICATIONS