prov:value
| - The catalyst of claim 41, wherein the solid support is selected from the group consisting of talcs, silicas, titania, silica/chromia, silica/chromia/titania, silica/alumina, zirconia, aluminum phosphate gels, silanized silica, silica hydrogels, silica xerogels, silica aerogels, silica co-gels, montmorillonite clay and Y is a compound selected from the group consisting of methylaluminoxane and othe
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