公开(公告)号：US20250018642A1

公开(公告)日：2025-01-16

申请号：US18899826

申请日：2024-09-27

Applicant: XEROX CORPORATION ,  NATIONAL RESEARCH COUNCIL OF CANADA

Inventor： Sarah J. VELLA ,  Alexandros VASILEIOU ,  Yujie ZHU ,  Edward G. ZWARTZ ,  Chantal PAQUET ,  Silvio E. KRUGER ,  Mohammad RAFIEE ,  Yujie ZHANG ,  Thomas LACELLE ,  Derek ARANGUREN VAN EGMOND ,  Claudie ROY

IPC: B29C64/118 ,  B29C48/05 ,  B29C64/10 ,  B29C64/165 ,  B29C64/314 ,  B29C64/40 ,  B29K25/00 ,  B29K33/00 ,  B29K67/00 ,  B29K101/12 ,  B29K105/00 ,  B29K105/04 ,  B29K105/16 ,  B29K507/04 ,  B29K509/00 ,  B29K509/02 ,  B33Y10/00 ,  B33Y40/10 ,  B33Y70/10 ,  B33Y80/00 ,  C08K3/04 ,  C08K3/22 ,  C08K7/06 ,  C08K9/04 ,  C08L23/06 ,  C08L25/06 ,  C08L53/02 ,  C08L67/04 ,  C08L71/02 ,  C09D4/06 ,  C09D5/24 ,  C09D7/40 ,  C09D7/61 ,  C09D7/62 ,  C09D7/63 ,  C09D167/04 ,  H10N30/092 ,  H10N30/85

Abstract: Parts made by additive manufacturing are often structural in nature, rather than having functional properties conveyed by a polymer or other component present therein. Printed parts having piezoelectric properties may be formed using compositions comprising a plurality of piezoelectric particles dispersed in at least a portion of a polymer matrix comprising first polymer material and a sacrificial material, the sacrificial material being removable from the polymer matrix to define a plurality of pores in the polymer matrix. The piezoelectric particles may remain substantially non-agglomerated when combined with the polymer matrix. The sacrificial material may comprise a second polymer material. The compositions may define a composite having a form factor such as a composite filament, a composite pellet, a composite powder, or a composite paste. Additive manufacturing processes may comprise forming a printed part by depositing the compositions layer-by-layer and introducing porosity therein.

公开(公告)号：US20230150202A1

公开(公告)日：2023-05-18

申请号：US17995557

申请日：2022-03-22

Applicant: XEROX CORPORATION ,  NATIONAL RESEARCH COUNCIL OF CANADA

Inventor： Sarah J. VELLA ,  Alexandros VASILEIOU ,  Yujie ZHU ,  Edward G. ZWARTZ ,  Chantal PAQUET

IPC: B29C64/314 ,  B33Y10/00 ,  B33Y70/10 ,  B29C64/118

CPC classification number: B29C64/314 ,  B33Y10/00 ,  B33Y70/10 ,  B29C64/118 ,  B29K2101/12

Abstract: Parts made by additive manufacturing are often structural in nature, rather than having functional properties conveyed by a polymer or other component present therein. Printed parts having piezoelectric properties may be formed using compositions comprising a polymer material comprising at least one thermoplastic polymer, and a plurality of piezoelectric covalently bonded to the at least one thermoplastic polymer and dispersed in at least a portion of the polymer material. The compositions are extrudable and may be pre-formed into a form factor suitable for extrusion. Additive manufacturing processes using the compositions may comprise forming a printed part by depositing the compositions layer-by-layer.

公开(公告)号：US20250114996A1

公开(公告)日：2025-04-10

申请号：US18052069

申请日：2022-03-22

Applicant: XEROX CORPORATION ,  NATIONAL RESEARCH COUNCIL OF CANADA

Inventor： Sarah J. VELLA ,  Alexandros VASILEIOU ,  Yujie ZHU ,  Edward G. ZWARTZ ,  Chantal PAQUET ,  Silvio E. KRUGER ,  Yujie ZHANG ,  Derek ARANGUREN VAN EGMOND ,  Thomas LACELLE ,  Mohammad RAFIEE ,  Claudie ROY

IPC: B29C64/118 ,  B29K23/00 ,  B29K105/00 ,  B29K105/16 ,  B29K505/08 ,  B33Y10/00 ,  B33Y70/10 ,  C08K9/04 ,  C08L53/00

Abstract: Parts made by additive manufacturing are often structural in nature, rather than having functional properties conveyed by a polymer or other component present therein. Printed parts having piezoelectric properties may be formed using compositions comprising a polymer material comprising at least one thermoplastic polymer, at least one polymer precursor, or any combination thereof, and a plurality of piezoelectric particles dispersed in at least a portion of the polymer material. The piezoelectric particles may interact non-covalently with at least a portion of the polymer material, be covalently bonded to at least a portion of the polymer material, and/or be reactive with at least a portion of the polymer material. The compositions may be extrudable and formable into a self-standing three-dimensional structure upon being extruded. Additive manufacturing processes may comprise forming a printed part by depositing the compositions layer-by-layer.

公开(公告)号：US20230357566A1

公开(公告)日：2023-11-09

申请号：US18052123

申请日：2022-03-22

Applicant: XEROX CORPORATION ,  NATIONAL RESEARCH COUNCIL OF CANADA

Inventor： Sarah J. VELLA ,  Alexandros VASILEIOU ,  Yujie ZHU ,  Edward G. ZWARTZ ,  Chantal PAQUET ,  Silvio E. KRUGER ,  Mohammad RAFIEE ,  Yujie ZHANG ,  Thomas LACELLE ,  Derek ARANGUREN VAN EGMOND ,  Claudie ROY

IPC: C08L67/04 ,  C08L23/06 ,  C08L71/02 ,  C08L25/06 ,  H10N30/85 ,  H10N30/092 ,  B33Y70/10

CPC classification number: C08L67/04 ,  C08L23/06 ,  C08L71/02 ,  C08L25/06 ,  H10N30/852 ,  H10N30/092 ,  B33Y70/10 ,  C08L2207/04 ,  C08L2207/062 ,  C08K2003/2244

Abstract: Parts made by additive manufacturing are often structural in nature, rather than having functional properties conveyed by a polymer or other component present therein. Printed parts having piezoelectric properties may be formed using compositions comprising a polymer matrix comprising a first polymer material and a second polymer material that are immiscible with each other, and a plurality of piezoelectric particles located in at least a portion of the polymer matrix. The piezoelectric particles may remain substantially non-agglomerated when combined with the polymer matrix. The compositions may define an extrudable material that is a composite having a form factor such as a composite filament, a composite pellet, a composite powder, or a composite paste. Additive manufacturing processes using the compositions may comprise forming a printed part by depositing the compositions layer-by-layer.

公开(公告)号：US20230212405A1

公开(公告)日：2023-07-06

申请号：US17996476

申请日：2022-03-22

Applicant: XEROX CORPORATION ,  NATIONAL RESEARCH COUNCIL OF CANADA

Inventor： Sarah J. VELLA ,  Alexandros VASILEIOU ,  Yujie ZHU ,  Edward G. ZWARTZ ,  Chantal PAQUET

IPC: C09D4/06 ,  C09D5/24 ,  C09D7/62 ,  C09D7/63 ,  C09D7/40 ,  C09D167/04 ,  H10N30/85 ,  H10N30/092 ,  B33Y70/10

CPC classification number: C09D4/06 ,  C09D5/24 ,  C09D7/62 ,  C09D7/63 ,  C09D7/69 ,  C09D167/04 ,  H10N30/852 ,  H10N30/092 ,  B33Y70/10 ,  B29C64/118

Abstract: Parts made by additive manufacturing are often structural in nature, rather than having functional properties conveyed by a polymer or other component present therein. Printed parts having piezoelectric properties may be formed using compositions comprising a plurality of piezoelectric particles and a polymer material comprising at least one thermoplastic polymer and at least one thermally curable polymer precursor. At a sufficient temperature, the at least one thermally curable polymer precursor may undergo a reaction, optionally also undergoing a reaction with the piezoelectric particles, and form an at least partially cured printed part. The piezoelectric particles may be mixed with the polymer material and remain substantially non-agglomerated when combined with the polymer material. The compositions may define a form factor such as a composite filament, a composite pellet, or an extrudable composite paste, which may be utilized in forming printed part by extrusion, layer-by-layer deposition, and thermal curing.

公开(公告)号：US20230182363A1

公开(公告)日：2023-06-15

申请号：US17995917

申请日：2022-03-22

Applicant: XEROX CORPORATION ,  NATIONAL RESEARCH COUNCIL OF CANADA

Inventor： Sarah J. VELLA ,  Alexandros VASILEIOU ,  Yujie ZHU ,  Edward G. ZWARTZ ,  Chantal PAQUET

IPC: B29C48/05 ,  B29C64/10 ,  B29C64/314 ,  B33Y10/00 ,  B33Y40/10 ,  B33Y70/10 ,  B33Y80/00

CPC classification number: B29C48/05 ,  B29C64/10 ,  B29C64/314 ,  B33Y10/00 ,  B33Y40/10 ,  B33Y70/10 ,  B33Y80/00 ,  B29K2101/12

Abstract: Parts made by additive manufacturing are often structural in nature, rather than having functional properties conveyed by a polymer or other component present therein. Printed parts having piezoelectric properties may be formed using compositions comprising a plurality of piezoelectric particles dispersed in at least a portion of a polymer matrix comprising first polymer material and a sacrificial material, the sacrificial material being removable from the polymer matrix to define a plurality of pores in the polymer matrix. The piezoelectric particles may remain substantially non-agglomerated when combined with the polymer matrix. The sacrificial material may comprise a second polymer material. The compositions may define a composite having a form factor such as a composite filament, a composite pellet, a composite powder, or a composite paste. Additive manufacturing processes may comprise forming a printed part by depositing the compositions layer-by-layer and introducing porosity therein.

公开(公告)号：US20220305719A1

公开(公告)日：2022-09-29

申请号：US17671733

申请日：2022-02-15

Applicant: Xerox Corporation

Inventor： Sarah J. VELLA ,  Yujie ZHU

IPC: B29C64/118 ,  B33Y10/00 ,  B33Y40/10 ,  B33Y70/10 ,  B29C64/314

Abstract: Parts made by additive manufacturing are often structural in nature, rather than having functional properties conveyed by a polymer or other component. Printed parts having piezoelectric properties may be formed using a composite filament comprising a plurality of piezoelectric particles dispersed in a thermoplastic polymer. The composite filaments may be formed through melt blending and extrusion. The composite filament is compatible with fused filament fabrication and has a length and diameter compatible with fused filament fabrication, and the piezoelectric particles are substantially non-agglomerated and dispersed along the length of the composite filament. The piezoelectric particles may remain substantially non-agglomerated when dispersed in the thermoplastic polymer through melt blending. Additive manufacturing processes may comprise heating such a composite filament at or above a melting point or softening temperature thereof to form a softened composite material, and depositing the softened composite material layer by layer to form a printed part.

公开(公告)号：US20240326292A1

公开(公告)日：2024-10-03

申请号：US18291037

申请日：2022-07-18

Applicant: Xerox Corporation

Inventor： Sarah J. VELLA ,  Alexandros VASILEIOU ,  Yujie ZHU ,  Edward G. ZWARTZ

IPC: B29B9/12 ,  B29C64/153 ,  B29K105/00 ,  B29K509/00 ,  B33Y10/00 ,  B33Y70/00

CPC classification number: B29B9/12 ,  B29C64/153 ,  B33Y10/00 ,  B33Y70/00 ,  B29B2009/125 ,  B29K2105/251 ,  B29K2509/00 ,  B29K2995/0003

Abstract: Parts made by additive manufacturing are often structural in nature, rather than having functional properties conveyed by a polymer or other component present therein. Printed parts having piezoelectric properties may be formed using powder particulates comprising a thermoplastic polymer and piezoelectric particles, wherein the piezoelectric particles are located (i) in the thermoplastic polymer at an outer surface of the powder particulates, (ii) within a core of the powder particulates, or (iii) combinations thereof. Additive manufacturing processes, such as powder bed fusion of powder particulates, may be employed to form printed objects in a range of shapes from the powder particulates. Melt emulsification may be used to form the powder particulates.

公开(公告)号：US20230323146A1

公开(公告)日：2023-10-12

申请号：US17701364

申请日：2022-03-22

Applicant: Xerox Corporation

Inventor： Yujie ZHU ,  Sarah J. VELLA ,  Alexandros VASILEIOU

IPC: C09D11/102 ,  C09D11/037 ,  B29C64/314 ,  B29C64/118 ,  C09D11/52 ,  C09D11/023 ,  B33Y10/00 ,  B33Y40/10 ,  B33Y70/00

CPC classification number: C09D11/52 ,  B29C64/118 ,  B29C64/314 ,  B33Y10/00 ,  B33Y40/10 ,  B33Y70/00 ,  C09D11/023 ,  C09D11/037 ,  C09D11/102 ,  B29K2075/00

Abstract: Parts made by additive manufacturing are often structural in nature, rather than having functional properties conveyed by a component present therein. Composite filaments suitable for additive manufacturing may comprise a continuous polymer phase of a first thermoplastic polymer and a second thermoplastic polymer that are immiscible with one another, and electrically conductive particles distributed in the continuous polymer phase, such as microparticles, nanoparticles, or any combination thereof. The first thermoplastic polymer is dissolvable or degradable and the second thermoplastic polymer is insoluble or non-degradable under specified conditions. Removal of the first thermoplastic polymer from a printed part may introduce porosity thereto, thereby inducing or enhancing piezoresistivity within the printed part. An aqueous mixture comprising the electrically conductive particles and the first and second thermoplastic polymers may have water removed therefrom, and the resulting composite residue may be extruded to form the composite filaments.

公开(公告)号：US20230193054A1

公开(公告)日：2023-06-22

申请号：US17995921

申请日：2022-03-22

Applicant: XEROX CORPORATION ,  NATIONAL RESEARCH COUNCIL OF CANADA

Inventor： Sarah J. VELLA ,  Alexandros VASILEIOU ,  Yujie ZHU ,  Edward G. ZWARTZ ,  Chantal PAQUET

IPC: C09D5/24 ,  C09D7/62 ,  C09D7/40 ,  C08L53/02 ,  C09D167/04 ,  H10N30/85 ,  H10N30/092 ,  B29C64/118 ,  B33Y10/00 ,  B33Y70/10

CPC classification number: C09D5/24 ,  C09D7/62 ,  C09D7/70 ,  C09D7/69 ,  C08L53/02 ,  C09D167/04 ,  H10N30/852 ,  H10N30/092 ,  B29C64/118 ,  B33Y10/00 ,  B33Y70/10 ,  C08K2201/011 ,  C08K2201/001 ,  C08K2003/2244

Abstract: Parts made by additive manufacturing are often structural in nature, rather than having functional properties conveyed by a polymer or other component present therein. Printed parts having piezoelectric properties may be formed using compositions that are extrudable and comprise a plurality of piezoelectric particles and a plurality of carbon nanomaterials dispersed in at least a portion of a polymer material. The piezoelectric particles may remain substantially non-agglomerated when combined with the polymer material. The polymer material may comprise at least one thermoplastic polymer, optionally further containing at least one polymer precursor. The compositions may define an extrudable material that is a composite having a form factor such as a composite filament, a composite pellet, a composite powder, or a composite paste. Additive manufacturing processes using the compositions may comprise forming a printed part by depositing the compositions layer-by-layer.