| Patent Number |
Title Of Patent |
Date Issued |
| 7273914 |
Olefin polymerization methods |
September 25, 2007 |
| Methods for making polyolefins are disclosed. One method comprises polymerizing an olefin in the presence of a catalyst system comprising a single-site complex, an agglomerated metal oxide/clay support-activator, and an ionic borate. Including an ionic borate with the support-activator |
| 6583242 |
Supported olefin polymerization catalysts |
June 24, 2003 |
| A supported olefin polymerization catalyst system and a method of making it are disclosed. The catalyst system comprises: (a) a support having mean particle size less than about 30 microns chemically treated with alumoxane; (b) an organometallic complex comprising a Group 3 to 10 tra |
| 4988783 |
Ethylene polymerization using supported vanadium catalyst |
January 29, 1991 |
| An ethylene polymerization catalyst comprising a supported precursor of vanadium trihalide/electron donor complex and alkylaluminum or boron halides, when combined with alkylaluminum cocatalyst and alkyl halide promoter, provides enhanced polymerization and productivity plus superior |
| 4508842 |
Ethylene polymerization using supported vanadium catalyst |
April 2, 1985 |
| An ethylene polymerization catalyst comprising a supported precursor of vanadium trihalide/electron donor complex and alkylaluminum or boron halides, when combined with alkylaluminum cocatalyst and alkyl halide promoter provides enhanced polymerization and productivity plus superior |
