| US 7,550,639 B2 | ||
| Process for producing olefin oligomer | ||
| Masaaki Nabika, Ichihara (Japan) | ||
| Assigned to Sumitomo Chemical Company, Limited, Tokyo (Japan) | ||
| Filed on Jun. 09, 2006, as Appl. No. 11/423,251. | ||
| Claims priority of application No. 2005-217024 (JP), filed on Jul. 27, 2005. | ||
| Prior Publication US 2007/0027350 A1, Feb. 01, 2007 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. C07C 2/24 (2006.01) | ||
| U.S. Cl. 585—513 [585/512; 585/522; 585/523] | 8 Claims |
| 1. A process for producing an olefin oligomer, which comprises the steps of:
(1) contacting a transition metal compound with a compound represented by the following formula (1), thereby producing a contact
product (i);
(2) contacting an alumoxane compound with an organoaluminum compound, thereby producing a contact product (ii); and
(3) contacting the contact product (i), the contact product (ii), and an olefin with one another;
R1R2A—G—AR3R4 (1)
wherein A is a nitrogen atom, a phosphorus atom, an arsenic atom or an antimony atom;
G is a divalent group; and R1, R2, R3 and R4 are independently of one another a hydrocarbyl group, a halogenated hydrocarbyl group, an oxygen-containing hydrocarbyl group,
a sulfur-containing hydrocarbyl group, a selenium-containing hydrocarbyl group, or a tellurium-containing hydrocarbyl group;
wherein step (3) comprises the sub-steps of (3-1) contacting the contact product (ii) with the olefin, thereby producing a
resultant contact product, and (3-2) contacting the resultant contact product with the contact product (i).
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