(19)
(11)
EP 1 147 071 A1
(12)
(43)
Date of publication:
24.10.2001
Bulletin 2001/43
(21)
Application number:
99962306.9
(22)
Date of filing:
22.12.1999
(51)
International Patent Classification (IPC)
7
:
C04B
35/18
,
C04B
35/628
(86)
International application number:
PCT/GB9904/240
(87)
International publication number:
WO 0037/390
(
29.06.2000
Gazette 2000/26)
(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:
22.12.1998
GB 9828286
(71)
Applicant:
Imerys Minerals Limited
St. AustellCornwall PL25 4DJ (GB)
(72)
Inventor:
HEARLE, Jonathan, Andrew
Falmouth,Cornwall TR11 3RS (GB)
(54)
CALCINED CLAY-CONTAINING COMPOSITIONS AND THEIR PRODUCTION AND USE