公开(公告)号：US20200231794A1

公开(公告)日：2020-07-23

申请号：US16483205

申请日：2017-12-13

Applicant: IMERYS TALC AMERICA, INC.

Inventor： Neil TREAT ,  Daniele BONACCHI

IPC: C08L23/14 ,  C08K3/34 ,  C08K3/04 ,  B33Y70/00 ,  B29C64/106

Abstract: This disclosure describes a composition for additive manufacturing, which contains a thermoplastic polymer and a mineral additive capable of reducing a specific heat of the composition relative to a specific heat of the thermoplastic polymer. A proportion of the mineral additive in the composition may be set such that the specific heat of the composition is equal to or less than 95% of the specific heat of the thermoplastic polymer, and the composition may be in the form of a filament, rod, pellet or granule. Compositions disclosed herein may be adapted to function as compositions suitable for performing additive manufacturing by material extrusion. Also disclosed herein are additive manufacturing processes and methods for producing the compositions for fused filament fabrication.