Patent ID: 7893181
Filing Date: 2011-02-22
Classification: C08F

Abstract:
1. A film comprising a polymer produced by a process comprising: (A) contacting one or more olefin monomers together in the presence of a catalyst under polymerization conditions, wherein said catalyst is produced by a process comprising: (i) contacting an alkyl magnesium compound with an alcohol to form a magnesium dialkoxide compound; (ii) contacting said magnesium dialkoxide compound with a first agent to form a reaction product “A”; (iii) contacting said reaction product “A” with a second agent to form a reaction product “B”; (iv) contacting said reaction product “B” with a third agent to form a reaction product “C”; (v) contacting said reaction product “C” with a fourth agent to form a reaction product “D”; and (vi) contacting said reaction product “D” with a fifth agent to form said catalyst; and (B) extracting said polymer, wherein said first agent is selected from ClTi(O i Pr) 3 , ClSi(Me) 3 , and combinations thereof; said second agent is TiCl 4 /Ti(OBu) 4 ; said third agent is TiCl 4 ; said fourth agent is TiCl 4 ; said fifth agent is selected from TMA, TlBAl, TEAl n-octyl aluminum, n-hexyl aluminum, and combinations thereof and wherein said film has a thickness of 0.5 mil to 10 mil; a drop dart impact of 10 g to 200 g; a tear strength of 10 to 1200 g; and a machine direction secant modulus of 140,000 psi to 220,000 psi.