Recently Olefin polymerization has been industrially changing from the
magnesium-supported Zieglar-Natta catalysts to the Kaminsky catalysts, using the Metallocene-type zirconium or titanium complex. By use of Kaminsky catalysts, it has now become possible to produce each separately syndiotacticpolypropylene and isotacticpolyprophylene, which failed to be synthesized in the past. Furthermore, it has become possible to synthesize polypropylenes whose molecular distributions are considerably narrow.
We have been making a special effort in synthesizing catalysts for polymerization, and have accumulated our experience, by starting synthesis of symmetric transition metal catalysts from ligand synthesis.
Not only for synthesis of the existing metal complexes, based on our abundant knowledge and experiences on organic synthesis, we ae capable to widely respond to the needs of synthesis of newly designed metal complexes, further extending to the synthesis of the next-generation, rare-earth metal complexes or non-metallocene transition metal catalysts.
 |
|
Metacellone Transition Metal Catalysts (Kaminsky Catalysts) |
