| abstract |
Surprisingly stable olefin polymerization catalysts and co-catalysts formed from hydroxyaluminoxanes are revealed. In one embodiment of the invention, a solid composition of matter is formed from a hydroxyaluminoxane and a treating agent, whereby the rate of OH-decay for the solid composition is reduced as compared to that of the hydroxyaluminoxane. Gelatinous compositions of matter formed from hydroxyaluminoxane and having similar stabiltiy characteristics are also disclosed. Processes for converting a hydroxyaluminoxane into a such compositions of matter, supported catalysts formed from such co-catalyst compositions of matter, as well as methods of their use, are described. |