Patents Represented by Attorney, Agent or Law Firm Karen Lee Orzechowski Liniak Berenato & White
  • Polyethylenes obtained by use of dual site catalyst
    Patent number: 6541581
    Abstract: A polyethylene produced by the homopolymerisation of ethylene or copolymerisation of ethylene with &agr;-olefins in the presence of a catalyst, characterized in that the fraction of low molecular weight polymers having MW<5000 g/mole is lower than 12% by weight of the produced polymer, and that the produced polyethylene has a measured melt strength expressed by a haul-off (HO) value satisfying the expression: HO>K1·&eegr;0.05+K2, wherein K1 is 9.10−5 and K2 is 0.4.
    Type: Grant
    Filed: November 29, 2000
    Date of Patent: April 1, 2003
    Assignee: Borealis Technology Oy
    Inventors: Arild Follestad, Vidar Almquist, Espen Ommundsen, Tore Dreng