摘要 |
<p>Single component metallocene catalysts for α-olefin polymerization are disclosed. Prior art cation metallocene catalysts have required a separate anion co-catalyst like methyl aluminoxane (MAO). However, because the inventive zwitterion ansa metallocene (ZAM) catalysts have a 'built-in' anion co-catalyst functionality, the need for a separate anion co-catalyst is eliminated.</p> |