(19)
(11)
EP 0 946 684 A1
(12)
(43)
Date of publication:
06.10.1999
Bulletin 1999/40
(21)
Application number:
97954445.0
(22)
Date of filing:
17.12.1997
(51)
International Patent Classification (IPC):
C10L
1/
14
( . )
C10L
1/
19
( . )
C10L
1/
22
( . )
C10L
1/
238
( . )
C10L
10/
02
( . )
C10L
1/
18
( . )
C10L
1/
198
( . )
C10L
1/
222
( . )
C10L
10/
00
( . )
C10L
1/
16
( . )
(86)
International application number:
PCT/EP1997/007193
(87)
International publication number:
WO 1998/028383
(
02.07.1998
Gazette 1998/26)
(84)
Designated Contracting States:
AT CH DE DK FI FR GB LI NL SE
(30)
Priority:
20.12.1996
EP 19960309368
(71)
Applicant:
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.
2596 HR Den Haag (NL)
(72)
Inventors:
CLAYTON, Christopher, William
Cheshire CH1 3SH (GB)
COWLEY, Leslie, Thomas
Cheshire CH1 3SH (GB)
DAY, Janet, Anne
CH-3432 Lutzelfluh (CH)
(54)
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