Invention Grant
- Patent Title: 3-D printed fluoropolymer structures
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Application No.: US16856254Application Date: 2020-04-23
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Publication No.: US11248071B2Publication Date: 2022-02-15
- Inventor: David Shin-Ren Liu , Gregory S. O'Brien , David A. Seiler , Mark Aubart , James J. Henry , Thomas Roland
- Applicant: Arkema Inc.
- Applicant Address: US PA King of Prussia
- Assignee: Arkema Inc.
- Current Assignee: Arkema Inc.
- Current Assignee Address: US PA King of Prussia
- Agent Joanne Rossi
- Main IPC: C08F14/22
- 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.
Public/Granted literature
- US20200247923A1 3-D PRINTED FLUOROPOLYMER STRUCTURES Public/Granted day:2020-08-06
Information query
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