| US 7,579,417 B2 | ||
| Metallocene compounds | ||
| Ilya Nifant'ev, Moscow (Russian Federation); Pavel V. Ivchenko, Moscow (Russian Federation); Ilya V. Tajdakov, Moscow (Russian Federation); and Luigi Resconi, Ferrara (Italy) | ||
| Assigned to Basell Polyolefine GmbH, Wesseling (Germany) | ||
| Appl. No. 10/584,003 PCT Filed Nov. 16, 2004, PCT No. PCT/EP2004/012984 § 371(c)(1), (2), (4) Date Jun. 22, 2006, PCT Pub. No. WO2005/063828, PCT Pub. Date Jul. 14, 2005. |
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| Claims priority of provisional application 60/532331, filed on Dec. 22, 2003. | ||
| Claims priority of application No. 03104913 (EP), filed on Dec. 22, 2003. | ||
| Prior Publication US 2007/0112152 A1, May 17, 2007 | ||
| Int. Cl. C08F 4/64 (2006.01); C08F 4/72 (2006.01); B01J 31/38 (2006.01) | ||
| U.S. Cl. 526—172 [526/161; 526/943; 526/941; 526/348.6; 526/351; 526/352; 502/103; 502/104; 556/53; 549/41; 549/59] | 14 Claims |
1. A metallocene compound of formula (IV):
 wherein:
M is a transition metal selected from group 3, 4, 5, 6 or a lanthanide or an actinide group in the Periodic Table of Elements;
p is an integer from 0 to 3, wherein p is equal to a formal oxidation state of M minus 2;
X, is the same or different, and is hydrogen, a halogen, R, OR, OSO2CF3, OCOR, SR, NR2 or PR2, wherein R is a C1-C40 hydrocarbon group optionally comprising at least one heteroatom belonging to groups 13-17 of the Periodic Table of Elements;
or two X can optionally form a substituted or unsubstituted butadienyl radical, or a OR′O group, wherein R′ is a divalent
radical selected from a C1-C40 alkylidene radical, a C6-C40 arylidene radical, a C7-C40 alkylarylidene radical or a C7-C40 arylalkylidene radical;
L is a divalent bridging group selected from a C1-C20 alkylidene radical, a C3-C20 cycloalkylidene radical, a C6-C20 arylidene radical, a C7-C20 alkylarylidene radical, or a C7-C20 arylalkylidene radical optionally comprising at least one heteroatom belonging to groups 13-17 of the Periodic Table of Elements,
or a silylidene radical comprising up to 5 silicon atoms;
R1 is a C1-C40 hydrocarbon group optionally comprising at least one heteroatom belonging to groups 13-17 of the Periodic Table of Elements;
R3 is a C1-C40 hydrocarbon group optionally comprising at least one heteroatom belonging to groups 13-17 of the Periodic Table of Elements;
R2, R4 and R5, are the same or different from each other, and are hydrogen or C1-C40 hydrocarbon groups optionally comprising at least one heteroatom belonging to groups 13-17 of the Periodic Table of Elements,
with the proviso that at least one among R2, R4 and R5 is hydrogen;
R6 and R7, are the same or different from each other, and are hydrogen or C1-C40 hydrocarbon groups optionally comprising at least one heteroatom belonging to groups 13-17 of the Periodic Table of Elements;
R15 and R16, are the same or different from each other, and are hydrogen or C1-C40 hydrocarbon groups optionally comprising at least one heteroatom belonging to groups 13-17 of the Periodic Table of Elements;
and
R3 with R4 and/or R4 with R5 can optionally join to form a aliphatic or aromatic 3-7 membered ring optionally comprising at least one heteroatom belonging
to groups 13-16 of the Periodic Table of Elements, the aliphatic or aromatic 3-7 membered ring optionally can comprise one
or more hydrocarbon substituents comprising from 1 to 20 carbon atoms.
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