FLUORINATED DIALKOXY-DIIMINO CATALYST COMPONENTS
This invention relates to the fluorinated dialkoxy-diimine metal complexes and their use in catalyst system for the polymerisation or oligomerisation of ethylene and alpha-olefins.
1 - 12 . (canceled)
13 . A metallic complex formed by a process comprising:
reacting via a metallation reaction, a metal salt or precursor of formula MX 4 , wherein M is a metal group 4 of the Periodic Table, and wherein each X is the same or different and is a halogen, an alkyl or a benzyl group with a fluorinated dialcohol-diimine pro-ligand of general formula
wherein R′ is a bridge having from 1 to 6 carbon atoms, which is optionally substituted so that the substituents form a ring either with each other or with R 2 ;
each R 2 is independently selected from hydrogen, C 1 to C 20 aryl groups or C 1 to C 20 alkyl groups optionally substituted with one or more fluorinated groups;
R 3 and R 4 are each independently selected from CF 3 , C n F 2n+1 , wherein n is an integer between 1 and 10, C 1 to C 20 aryl groups or C 1 to C 20 alkyl groups; and
R 5 and R 6 are each independently selected from hydrogen, C 1 to C 20 aryl groups or C 1 to C 20 alkyl groups.
14 . The metallic complex of claim 13 , wherein at least one of R 3 and R 4 is a perfluorinated alkyl group.
15 . The metallic complex of claim 13 , wherein both R 2 are the same and are phenyl groups.
16 . The metallic complex of claim 13 , wherein both R 2 are phenyl groups substituted with H, F or CF 3 at positions 2, 3 or combinations thereof, 4, 5, 6 with isopropyl at positions 2 and 6.
17 . The metallic complex of claim 13 , wherein R 3 and R 4 are the same and are CF 3 or CnF 2n+1 .
18 . The metallic complex of claim 13 , wherein R 5 and R 6 are the same and are hydrogen.
19 . The metallic complex of claim 13 , wherein X is selected from chlorine, methyl and benzyl.
20 . A method for forming the metallic complex of claim 13 comprising:
providing the fluorinated dialcohol-diimine pro-ligand; and
complexing the fluorinated dialcohol-diimine pro-ligand with the metal salt or precursor of formula MX 4 .
21 . An active catalyst system comprising the metallic complex of claim 13 and an activating agent having an ionising action and optionally a cocatalyst.
22 . The active catalyst of claim 21 , wherein the activating agent is aluminoxane or an activating support.