| abstract |
Invention Patent: <B> "HIGH FUSION POLYETHYLENE COMPOSITIONS" <D>. The invention involves a polyethylene composition having a polydispersity index less than or equal to 3, an average branching index (g ') as measured by GPC / Vis (0.9 and a melting strength (EM) (centipole) , 190 ° C) satisfying the equation: In a preferred embodiment these polyethylene compositions comprise A) branched polyethylene copolymers prepared by ethylene insertion polymerization, ethylene containing macromers and, optionally, additional copolymerizable monomers and B) essentially linear ethylene copolymers. An improved melt strength without sacrificing the benefits of the narrow polydispersity index is the benefit presented by the compositions of the invention. |