公开(公告)号：US12071540B2

公开(公告)日：2024-08-27

申请号：US17335697

申请日：2021-06-01

Applicant: Xerox Corporation

Inventor： Judith Vandewinckel ,  Mark Mercandetti ,  Angela Schnuerch ,  James Winters

IPC: C08L55/02 ,  B29C64/118 ,  B33Y70/00 ,  B33Y70/10 ,  C08K11/00 ,  C08L97/02

CPC classification number: C08L55/02 ,  B29C64/118 ,  B33Y70/00 ,  B33Y70/10 ,  C08K11/005 ,  C08L97/02

Abstract: Compositions include polymer filaments compatible with fused filament fabrication, comprising: a thermoplastic polymer; and a bio-based additive admixed with the thermoplastic polymer in an effective amount to decrease total volatile organic compound (TVOC) emissions under additive manufacturing conditions, as determined by gas chromatography and measured relative to the thermoplastic polymer alone, by at least about 10% on a weight basis. Methods for forming a polymer filament compatible with fused filament fabrication may comprise: forming a melt blend comprising a thermoplastic polymer and a bio-based additive; and extruding the melt blend and cooling to form a polymer filament comprising the bio-based additive admixed with the thermoplastic polymer. The bio-based additive is present in an effective amount to decrease total volatile organic compound (TVOC) emissions under additive manufacturing conditions, as determined by gas chromatography and measured relative to the thermoplastic polymer alone, by at least about 10% on a weight basis.

公开(公告)号：US11951683B2

公开(公告)日：2024-04-09

申请号：US17862215

申请日：2022-07-11

Applicant: Xerox Corporation

Inventor： Chunliang Lu ,  Christopher Wolfe ,  John Ianni ,  Mark Mercandetti ,  John Pawlak ,  Chieh-Min Cheng

IPC: B29C67/00 ,  B29C64/118 ,  B29C64/153 ,  B29C64/188 ,  B29C64/393 ,  B33Y10/00 ,  B33Y40/00 ,  B33Y50/02

CPC classification number: B29C64/188 ,  B29C64/118 ,  B29C64/153 ,  B29C64/393 ,  B29K2995/0008 ,  B29K2995/0094 ,  B33Y10/00 ,  B33Y40/00 ,  B33Y50/02

Abstract: A method for improving z-axis strength of a 3D printed object is disclosed. For example, the method includes printing a three-dimensional (3D) object with a polymer and magnetic particles, heating the 3D object to a temperature at approximately a melting temperature of the polymer, and applying a magnetic field to the 3D object to locally move the magnetic particles in the polymer to generate heat and fuse the polymer around the magnetic particles to improve a z-axis strength of the 3D object.

公开(公告)号：US20220339865A1

公开(公告)日：2022-10-27

申请号：US17862215

申请日：2022-07-11

Applicant: Xerox Corporation

Inventor： Chunliang Lu ,  Christopher Wolfe ,  John Ianni ,  Mark Mercandetti ,  John Pawlak ,  Chieh-Min Cheng

IPC: B29C64/188 ,  B29C64/118 ,  B29C64/153 ,  B29C64/393

Abstract: A method for improving z-axis strength of a 3D printed object is disclosed. For example, the method includes printing a three-dimensional (3D) object with a polymer and magnetic particles, heating the 3D object to a temperature at approximately a melting temperature of the polymer, and applying a magnetic field to the 3D object to locally move the magnetic particles in the polymer to generate heat and fuse the polymer around the magnetic particles to improve a z-axis strength of the 3D object.

公开(公告)号：US20210283838A1

公开(公告)日：2021-09-16

申请号：US16818754

申请日：2020-03-13

Applicant: Xerox Corporation

Inventor： Chunliang Lu ,  Christopher Wolfe ,  John Ianni ,  Mark Mercandetti ,  John Pawlak ,  Chieh-Min Cheng

IPC: B29C64/188 ,  B29C64/153 ,  B29C64/118 ,  B29C64/393

Abstract: A method for improving z-axis strength of a 3D printed object is disclosed. For example, the method includes printing a three-dimensional (3D) object with a polymer and magnetic particles, heating the 3D object to a temperature at approximately a melting temperature of the polymer, and applying a magnetic field to the 3D object to locally move the magnetic particles in the polymer to generate heat and fuse the polymer around the magnetic particles to improve a z-axis strength of the 3D object.