公开(公告)号：US10259936B2

公开(公告)日：2019-04-16

申请号：US15957186

申请日：2018-04-19

Applicant: Arkema Inc.

Inventor： David Shin-Ren Liu ,  Gregory S. O'Brien ,  David A. Seiler

IPC: C08L27/16 ,  B33Y10/00 ,  B33Y70/00 ,  C08K3/04 ,  B29C64/118 ,  C08F14/22 ,  C08K3/26 ,  C08K3/30 ,  C08K3/34 ,  C08K3/36 ,  C08K3/40 ,  C08K7/06 ,  C08K7/14 ,  C08K7/22 ,  B29C64/112 ,  B33Y80/00 ,  B29K27/00

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.

公开(公告)号：US12151434B2

公开(公告)日：2024-11-26

申请号：US16771763

申请日：2018-12-27

Applicant: Arkema Inc.

Inventor： Azaz Vahora ,  James Joseph Henry ,  David Shin-Ren Liu

IPC: B33Y70/00 ,  B29C64/118 ,  B29C64/314 ,  B33Y10/00 ,  B33Y40/10 ,  B33Y70/10 ,  D01D5/247 ,  D01D5/34 ,  D01F1/08 ,  B29C64/321 ,  B29K101/12

Abstract: The invention relates to thermoplastic filament for use in 3-D printers, in which the core of the filament is non-solid or mono-filament. The filament may contain a multitude of small micro-voids, (a micro foam), be a foam-core structure, be hollow, or have a monofilament core. The filament of the invention is especially useful with crystalline and semi-crystalline polymers, and reduces the negative effect of filament voids, formed by shrinkage during the cooling of the filament.

公开(公告)号：US20200325323A1

公开(公告)日：2020-10-15

申请号：US16305123

申请日：2017-05-31

Applicant: David Shin-Ren LIU ,  Jack J. REILLY ,  Mark A. AUBART ,  ARKEMA INC.

Inventor： David Shin-Ren Liu ,  Jack J. REILLY ,  Mark A. AUBART

IPC: C08L33/08 ,  C08L67/04 ,  C08L1/12 ,  B29C64/118 ,  B29C64/321

Abstract: The invention relates to an acrylic alloy composition that can be 3-D printed by a material extrusion additive manufacturing process, to an acrylic filament that has a very uniform diameter useful in the extrusion additive manufacturing process, to acrylic articles made from the acrylic alloy composition by a material extrusion additive process, and to a material extrusion additive manufacturing process for producing the acrylic articles. The acrylic alloy composition is an alloy of an acrylic polymer, and a low melt viscosity polymer, such as polylactic acid. The alloy may optionally be impact modified, preferably with hard core core-shell impact modifiers.

公开(公告)号：US11938673B2

公开(公告)日：2024-03-26

申请号：US16650978

申请日：2018-09-28

Applicant: Arkema Inc.

Inventor： David Shin-Ren Liu ,  Camille Khadraoui ,  Mark A. Aubart

IPC: B29C64/106 ,  B29C70/78 ,  B29C64/393 ,  B33Y10/00 ,  B33Y50/02 ,  B33Y70/10

CPC classification number: B29C64/106 ,  B29C70/78 ,  B29C64/393 ,  B33Y10/00 ,  B33Y50/02 ,  B33Y70/10

Abstract: The invention relates to the use of a compatible thermoplastic material (film, sheet, or raft) as the base sheet or layer for 3-D printing an article. The use of the base film provides a means of printing a large article, and of reducing warpage by printing directly on the film. The printed article adheres to the film better than to traditional printer surfaces (glass, metal, glue, or reusable films), because the printed article and film weld together by forming chain entanglements, due to being compatible, miscible, or semi-miscible in the melt.

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.

公开(公告)号：US20180237627A1

公开(公告)日：2018-08-23

申请号：US15957186

申请日：2018-04-19

Applicant: Arkema Inc.

Inventor： David Shin-Ren Liu ,  Gregory S. O'Brien ,  David A. Seller

IPC: C08L27/16 ,  C08F14/22 ,  C08K7/06 ,  C08K3/04 ,  C08K3/40 ,  C08K7/14 ,  C08K3/36 ,  C08K7/22 ,  C08K3/34 ,  C08K3/26 ,  C08K3/30 ,  B33Y70/00 ,  B33Y10/00 ,  B29C64/118

CPC classification number: C08L27/16 ,  B29C64/112 ,  B29C64/118 ,  B29K2027/16 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y80/00 ,  C08F14/22 ,  C08K3/04 ,  C08K3/041 ,  C08K3/042 ,  C08K3/26 ,  C08K3/30 ,  C08K3/34 ,  C08K3/36 ,  C08K3/40 ,  C08K7/06 ,  C08K7/14 ,  C08K7/22 ,  C08K2003/265 ,  C08K2003/3045

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.