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| Number | Title | Issue Date |
| 6232255 | Olefin polymerization catalyst system A catalyst system for the polymerization of olefins which includes a solid catalyst component and a cocatalyst. The solid catalyst component includes the contact product of silica, an alkyl magnesium-containing species, a compound having the structural fo... | 05/15/2001 |
| 5412025 | Method to reactor-fill polyolefins by employing a sticky prepolymer as a blending and compatibilizing agent The present invention relates to a process to in-situ reactor-fill polyolefins. More specifically, the instant invention provides a process to reactor-fill polyolefins comprising the steps of (a) adding a sufficient amount of alpha-olefin to a filler prio... | 05/02/1995 |
| 5405817 | V/TI multi-site olefin polymerization catalyst Catalysts useful in olefin polymerization are a mixture of (a) a titanium-containing compound which is (i) Ti(Z1)t (OZ2)p-t, (ii) the product of reacting Z3 --Mg--N(--Z5)--Si(Z4)... | 04/11/1995 |
| 5399540 | ZR/V multi-site olefin polymerization catalyst A catalyst useful in the polymerization of olefins, especially ethylene, is disclosed. The catalyst is obtained by admixing a zinc composition, a zirconium composition and a vanadium composition. The catalyst may be combined with a co-catalyst and, option... | 03/21/1995 |
