Thermoplastic foams and uses in applications requiring strength and lightweight

Abstract

Method of forming extruded thermoplastic foam comprising extruding a foamable composition comprising thermoplastic polymer and blowing agent, wherein said thermoplastic polymer consists essentially of ethylene furanoate moieties and optionally ethylene terephthalate moieties and wherein said extruding step comprises forcing said foamable composition from a relatively high pressure region through a die to a relatively low pressure region.

Dependencies are inferred from the claim text.