IMPROVED POLYOLEFIN COMPOSITION FOR VEHICLE NOISE VIBRATION AND HARSHNESS APPLICATIONS

摘要

The present invention relates to polyolefin compositions useful as sound-deadening sheeting for formed vehicle applications. Said polyolefin composition comprises a physical mixture of a filled polyolefin and a functionalized polyethylene wherein the filled polyolefin comprises an elastomer, preferably one or more linear ethylene polymer and/or substantially linear polymer and a filler, preferably calcium carbonate. Said composition demonstrates a good balance of melt strength and elongation such that it is particularly suitable for sheet extrusion and thermoforming articles therefrom.