METHOD FOR PROCESSING POLYOLEFINS AT HIGH SHEAR RATES

摘要

Processing, particularly extruding polyolefins having low MI, narrow MWD at extrusion temperatures less than 200 DEG C and at shear rates less than 2000 sec<-1> but higher than the slipstick region of the polyolefin produces a new window of processing conditions to produce smooth polymers that do not have sharkskin melt fracture or wavy surfaces.