A PROCESS FOR INCREASING THE MELT STRENGTH OF A POLYETHYLENE RESIN, A MASTERBATCH COMPOSITION AND A POLYMERIC COMPOSITION.

摘要

A process for increasing the melt strength of a polyethylene resin comprising a) selecting a polyethylene resin having i) a density, as determined according to ASTM D792, in the range of from 0.865 g/cm3 to 0.97 g/cm3, and ii) a melt index, I2, as determined according to ASTM D1238 (2.16 kg, 190° C), in the range of from 0.01 g/10 min to 100 g/10 min; b) reacting from 10 ppm to 1000 ppm of at least one peroxide having a 1 hour half- life decomposition temperature from 160° C to 250° C with the polyethylene resin under conditions sufficient to increase the melt strength of the polyethylene resin is provided. Also provided are a masterbatch composition and a polymeric composition.