| 摘要 |
<p>Ionic aluminoxanates are provided. Unlike conventional aluminoxanes the aluminoxanates are highly electrically conductive, e.g., when dissolved in methylene chloride. They can be used in supported, unsupported, or self-supported form as polymerization catalysts with all known transition metal olefin polymerization catalyst compounds or complexes. The ionic aluminoxanates can be made by (A) thoroughly washing a liquid clathrate formed from (i) an aluminoxane, (ii) an organic, inorganic, or organometallic compound, and (iii) an organic solvent to form a washed liquid clathrate; (B) mixing an inert liquid non-solvent with viscous liquid clathrate from (A) to form a slurry comprised of precipitated solids and a liquid phase; and (C) recovering precipitated solids from the liquid phase, these being the ionic aluminoxanates. Other methods are described for making and/or recovering the ionic aluminoxanates.</p> |
