Eastman Chemical Company
Compositions for the production of objects using additive manufacturing

Abstract:

Filament comprising a polymeric material that includes a diacid component comprising from about 40 to 60 mole % of units derived from terephthalic acid and from about 40 to 60 mole % of units derived from a diacid chosen from isophthalic acid, a cyclohexanedicarboxylic acid, a naphthalenedicarboxylic acid, a stilbenedicarboxylic acid, or a combination thereof; a glycol component comprising at least 75 mole % of units derived from cyclohexanedimethanol; wherein the polymeric material has an inherent viscosity loss of 3% or less after being extruded; and method of using this filament in production of different articles by 3D printing are disclosed.