公开(公告)号：US11248071B2

公开(公告)日：2022-02-15

申请号：US16856254

申请日：2020-04-23

Applicant: Arkema Inc.

Inventor： David Shin-Ren Liu ,  Gregory S. O'Brien ,  David A. Seiler ,  Mark Aubart ,  James J. Henry ,  Thomas Roland

IPC: C08F14/22 ,  B29C64/112 ,  C08L27/16 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y80/00 ,  B29C64/118 ,  C08K3/26 ,  C08K3/30 ,  B29K27/12 ,  C08L61/00 ,  C08L27/14 ,  C08L27/18 ,  C08L71/00 ,  C08L33/12 ,  C08L61/16 ,  B29C64/106 ,  C08L27/12 ,  C08L27/20 ,  B29K33/00 ,  C08K7/10 ,  C08K3/22 ,  C08K7/20 ,  C08K7/04 ,  C08K7/02 ,  B32B27/08 ,  B32B27/16 ,  B32B7/02 ,  B32B27/18 ,  B32B7/022 ,  B33Y40/20 ,  B33Y70/10 ,  C08K3/04 ,  B29K27/00 ,  C08K3/34 ,  C08K3/36 ,  C08K3/40 ,  C08K7/06 ,  C08K7/14 ,  C08K7/22 ,  C08K3/013

Abstract: The invention relates to fluoropolymer filament for use in 3-D printing, and 3-D printed fluoropolymer articles having low warpage, excellent chemical resistance, excellent water resistance, flame resistance, and good mechanical integrity. Additionally, the articles of the invention have good shelf life without the need for special packaging. In particular, the invention relates to filament, 3-D printed polyvinylidene fluoride (PVDF) articles, and in particular material extrusion 3-D printing. The articles may be formed from PVDF homopolymers, copolymers, such as KYNAR® resins from Arkema, as well as polymer blends with appropriately defined low shear melt viscosity. The PVDF may optionally be a filled PVDF formulation. The physical properties of the 3-D printed articles can be maximized and warpage minimized by optimizing processing parameters.