| 摘要 |
<p>A support for use in preparing supported catalysts for addition polymerizations comprising the reaction product of: (A) an inorganic oxide material comprising reactive surface hydroxyl groups, at least some of said hydroxyl groups optionally having been functionalized and converted to a reactive silane moiety corresponding to the formula: -OSiR2H, wherein R, independently each occurrence, is hydrogen, C1-20 hydrocarbyl, or C1-20 hydrocarbyloxy, said inorganic oxide or functionalized derivative thereof comprising less than 1.0 mmol of reactive surface hydroxyl functionality per gram; and (B) an activator compound comprising: b1) a cation which is capable of reacting with a transition metal compound to form a catalytically active transition metal complex, and b2) a compatible anion containing at least one substituent able to react with the inorganic oxide, with residual hydroxyl functionality of the inorganic oxide, or with the reactive silane moiety, thereby covalently bonding the compatible anion to the support; catalysts formed therefrom, process of manufacture and the method of use.</p> |
