Patent ID: 6548611
Filing Date: 2003-04-15
Classification: B29C,B29K,B32B,C08F,C08G,C08J,C08L,Y10S

Abstract:
A continuous process of preparing a polymer having a melt flow ratio, I10/I2, &gE;5.63 and a molecular weight distribution, Mw/Mn, defined by the equation:Mw/Mn&lE;(I10/I2)âˆ’4.63, said process comprising continuously contacting one or more C2-C20 olefins with a catalyst composition under continuous polymerization conditions, wherein said catalyst composition is made from components comprising:(a) a metal coordination complex corresponding to the formula: wherein Râ€² each occurrence is independently selected from the group consisting of hydrogen, alkyl, aryl, silyl, germyl, cyano, halo and combinations thereof having up to 20 non-hydrogen atoms; X each occurrence independently is selected from the group consisting of hydride, halo, alkyl, aryl, silyl, germyl, aryloxy, alkoxy, amide, siloxy, neutral Lewis base ligands and combinations thereof having up to 20 non-hydrogen atoms; Y is â€”Oâ€”, â€”Sâ€”, NR*â€”, â€”PR*â€”, or a neutral two electron donor ligand selected from the group consisting of OR*, SR*, NR*2, and PR*2; M is a metal of group 3-10, or the Lanthanide series of the Periodic Table of the Elements; and Z is SiR*2, CR*2, SiR*2SiR*2, CR*2CR*2, CR*&boxH;CR*, CR*2SiR*2, GeR*2, BR*, BR*2; wherein:R* each occurrence is independently selected from the group consisting of hydrogen, alkyl, aryl, silyl, halogenated aryl, halogenated alkyl groups having up to 20 non-hydrogen atoms, and mixtures thereof, or two or more R* groups from Y, Z, or both Y and Z form a fused ring system; and n is 1 or 2, and (b) an activating cocatalyst.