Patent ID: 6653431
Filing Date: 2003-11-25
Classification: C08F,Y10S

Abstract:
A linear low-density polyolefin obtained from a process comprising:reacting an olefin monomer with hydrogen and an &agr;-olefin co-monomer in a slurry polymerization in the presence of a catalyst comprising: (i) a metallocene catalyst component of general formula Râ€³(CpRm)(Cpâ€²Râ€²n)MQ2, wherein Cp is a cyclopentadienyl moiety, Cpâ€² is a substituted fluorenyl ring; Râ€³ is a structural bridge imparting stereorigidity to said metallocene catalyst component; each R is independently hydrogen or a hydrocarbyl having 1 to 20 carbon atoms in which 0&lE;m&lE;4; each Râ€² is independently â€”SiRâ€²â€³3 in which each Râ€²â€³ is independently hydrogen or a hydrocarbyl having 1 to 20 carbon atoms, and in which 0(ii) an aluminum-or boron-containing co-catalyst; and (iii) said catalyst is supported on an inert support.