(19)
(11)
EP 0 960 068 A1
(12)
(43)
Date of publication:
01.12.1999
Bulletin 1999/48
(21)
Application number:
97945995.0
(22)
Date of filing:
01.12.1997
(51)
International Patent Classification (IPC):
C01B
33/
193
( . )
(86)
International application number:
PCT/GB1997/003305
(87)
International publication number:
WO 1998/025851
(
18.06.1998
Gazette 1998/24)
(84)
Designated Contracting States:
BE DE ES FR GB IT
(30)
Priority:
10.12.1996
GB 19960025630
(71)
Applicant:
CROSFIELD LIMITED
Warrington, Cheshire WA5 1AB (GB)
(72)
Inventor:
WARD, David, Richard
Holywell Flintshire CH8 7QA (GB)
(74)
Representative:
Collingwood, Anthony Robert, et al
Imperial Chemical Industries PLC, Group Intellectual Property Dept., P.O. Box 11, The Heath
Runcorn WA7 4QE, Cheshire
Runcorn WA7 4QE, Cheshire (GB)
(54)
CONTROLLED-PORE AMORPHOUS SILICAS AND PROCESS FOR MANUFACTURING THE SAME