Mixed Catalyst Systems Containing Bridged Metallocenes with a Pendant Group 13 Element, Processes for Making a Polymer Product Using Same, and Products Made from Same

Abstract

A mixed metallocene catalyst system can additionally include a non-coordinating anion type activator comprising a supported alumoxane or aluminum alkyl, and optionally a scavenger. A process for making a polymeric product can comprise: contacting a C2-C22 alpha-olefin feed with the catalyst system to obtain a polymerization reaction mixture; and obtaining a polymer product from the polymerization reaction mixture. A polymer product can be made by the process.

What is claimed is: 
     
         1 . A polymer product made from an alpha-olefin feed comprising ethylene (C 2 ) monomer and a C 3  to C 40  alpha-olefin comonomer, wherein the polymer product exhibits:
 an Mn, as measured by GPC, from 7,000 g/mol to 70,000 g/mol;   a PDI, as measured by GPC, from 4.1 to 11.0;   a reversed-co-monomer index (RCI,m) of at least 200 kg/mol; and   a comonomer distribution ratio (CDR2,m) of at least 2.0.   
     
     
         2 . The polymer product of  claim 1 , further exhibiting, as measured by GPC, an average content of polymerized C 3  to C 40  alpha-olefin comonomer, relative to a total content of alpha-olefin monomers and comonomers polymerized in the polymer product, that increases for each quartile of increasing MWD of the polymer product. 
     
     
         3 . The polymer product of  claim 1 , further exhibiting a melt index ratio (MIR) from 35 to 100. 
     
     
         4 . The polymer product of  claim 1 , further exhibiting, according to cross-fractionation chromatography (CFC):
 a (Tw1-Tw2) value between −30° C. and −36° C., a Tw2 of at least 90° C., an Mw1/Mw2 value of at least 0.9, or a combination thereof; and   an Mw1/Mw2 value less than or equal to [0.6*(Tw1-Tw2)]−17.