POLYOLEFIN COMPOSITION INCLUDING HOLLOW GLASS MICROSPHERES AND METHOD OF USING THE SAME

摘要

A composition that includes a polyolefin having first repeating units, hollow glass microspheres, a polyolefin impact modifier that is chemically non-crosslinked and free of polar functional groups, and a compatibilizer comprising the first repeating units and second repeating units, which are the first repeating units modified with polar functional groups. Articles made from the composition and methods of making an article by injection molding the composition are also disclosed.

主权项

1. A composition comprising:
a polyolefin comprising first repeating units; hollow glass microspheres; a polyolefin impact modifier that is chemically non-crosslinked and free of polar functional groups; and a compatibilizer comprising the first repeating units and second repeating units, which are the first repeating modified with polar functional groups, wherein the hollow glass microspheres are present in a range from 40% to 70% by volume, the polyolefin impact modifier is present in a range from 20% to 50% by volume, and the compatibilizer is present in a range from 4% to 12% by volume, based on the total volume of the hollow glass microspheres, the polyolefin impact modifier, and the compatibilizer, and wherein the composition has a notched izod impact strength of at least 60 joules/meter, and wherein the composition comprises greater than ten percent by weight of the glass, based on the total weight of the composition.