continued from part 1 - Controller General of Patents, Designs, and ...

(12) PATENT APPLICATION PUBLICATION (21) Application No.6393/DELNP/2008 A
(19) INDIA
(22) Date of filing of Application :22/07/2008 (43) Publication Date : 24/10/2008
(54) Title of the invention : "TRANSITION METAL CATALYSTS"
(51) International classification :B01J 31/18 (71)Name of Applicant :
(31) Priority Document No :06250599.5
1)INEOS EUROPE LIMITED
(32) Priority Date :03/02/2006
Address of Applicant :HAWKSLEASE, CHAPEL LANE,
(33) Name of priority country :EPO
LYNDHURST, HAMPSHIRE SO43 7FG, GREAT BRITAIN.
(86) International Application No :PCT/GB2007/000268 U.K.
Filing Date
:25/01/2007 (72)Name of Inventor :
(87) International Publication No :WO 2007/088329 1)STEFAN KLAUS SPITZMESSER
(61) Patent of Addition to Application
Number
Filing Date
:NA
:NA
2)PAUL RICHARD ELOWE
3)JOHN E. BERCAW
(62) Divisional to Application Number :NA
Filing Date
:NA
(57) Abstract :
Transition metal catalysts comprise (a) a source of a Group 3 to 10 transition metal, (b) a ligand having the formula: R1 R2 X-Y-XR3
R4 wherein X is phosphorus, arsenic or antimony, Y is a bridging group having the formula: Z-(A)-D-Rm wherein Z is the moiety
linking the X groups, A is a linear or cyclic hydrocarbyl, substituted hydrocarbyl, heterohydrocarbyl or substituted heterohydrocarbyl
linking group wherein the number of atoms directly linking Z to D is 1, 2 or 3, D is N, P, As, O, S or Se, R is hydrogen, alky],
hydrocarbyl, substituted hydrocarbyl, heteroalkyl, heterohydrocarbyl or substituted heterohydrocarbyl, and m is 1 or 2, R1 ,R2 ,R3 ,
and R4 are the same or different and represent hydrocarbyl or functionalized hydrocarbyl moieties with the proviso that if D is
nitrogen, R is not a cyclic ether, and optionally an activator. The transition metal catalysts are suitable for the selective trimerisafion or
tetramerisation of olefins in particular ethylene.
No. of Pages : 35 No. of Claims : 26
The Patent Office Journal 24/10/2008 25855