Title:
ポリオレフィン触媒のための電子供与体としての環式有機ケイ素化合物
Document Type and Number:
Japanese Patent JP2012523490
Kind Code:
A
Abstract:
Cyclic organosilicon compounds that may be employed as an electron donor for polymerization catalyst systems, polymerization catalyst systems employing the cyclic organosilicon compounds as an electron donor, methods of making the polymerization catalyst systems, and polymerization processes to produce polyolefin are disclosed. The organosilicon compounds, which are useful as electron donors in polymerization catalyst systems for the production of polyolefins, are represented by the following formula: wherein Q1 and Q2 may be identical or different and are each hetero-atoms selected from the group consisting of N, O, S, Si, B, and P, with the proviso that Q1 and Q2 cannot both be N or both be O. R1 and R2 may be identical or different and are each hydrocarbon-based substituents to Q1 and Q2, respectively. The subscripts m and n are independently 0 to 3. R3 is an aliphatic, alicyclic or aromatic group. R4 is a hydrocarbon group with 1 to 6 carbon atoms. R5 is a bridging group with a backbone chain length between the two hetero-atoms Q1 and Q2 being 1-8 atoms. The bridging group is selected from the group consisting of aliphatic, alicyclic, and aromatic bivalent radicals.
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Inventors:
Juan, Each Yuin
Rou, Hong Lang
Rou, Hong Lang
Application Number:
JP2012505875A
Publication Date:
October 04, 2012
Filing Date:
December 09, 2009
Export Citation:
Assignee:
Formosa Plus Stakes Corporation USA
International Classes:
C08F4/654; C08F4/658; C08F10/00
Domestic Patent References:
| JP2005519118A | 2005-06-30 | |||
| JP2000273113A | 2000-10-03 |
Foreign References:
| WO2008066200A1 | 2008-06-05 |
Attorney, Agent or Firm:
Kawaguchi International Patent Office