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1.发明公开公开(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.
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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.
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公开(公告)号：US20170259497A1
公开(公告)日：2017-09-14
申请号：US15065492
申请日：2016-03-09
Applicant: XEROX CORPORATION
Inventor： Rachel PRESTAYKO , Sarah J. VELLA , Carolyn MOORLAG , Barkev KEOSHKERIAN , C. Geoffrey ALLEN
IPC: B29C67/00 , C09D7/12 , C08K3/04 , C09D171/00
CPC classification number: C09D171/00 , B29C64/118 , B29K2071/00 , B29K2105/0085 , B29K2105/0094 , B29K2105/162 , B29K2507/04 , B33Y10/00 , B33Y70/00 , C08K3/04 , C08K3/041 , C08K2201/001 , C09D7/61 , C09D7/70 , D01F1/10 , D01F6/84 , D01F6/86 , C08L67/025 , C08L67/02
Abstract: A method includes adding about 5 weight percent to about 25 weight percent of carbon nanotubes to a crystalline or semi-crystalline polymer to form a composite and forming a filament or particles from the composite, the filament or particles having a size suitable for use in additive manufacturing, in the absence of the carbon nanotubes a melt viscosity of the crystalline or semi-crystalline polymer is below 100 Pa·s, preventing its use in additive manufacturing. The filament or particles comprising carbon nanotubes can be used in methods of additive manufacturing.
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4.发明公开公开(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
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.
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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.
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Patent Agency Ranking
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
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.
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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.
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公开(公告)号：US20250109305A1
公开(公告)日：2025-04-03
申请号：US18479184
申请日：2023-10-02
Applicant: XEROX CORPORATION
Inventor： Alexandros VASILEIOU , Sarah J. VELLA , Edward G. ZWARTZ
IPC: C09D5/24 , B33Y10/00 , B33Y70/00 , C08K3/22 , C08K5/1539 , C08K5/3417 , C08K9/04 , C09D7/62 , C09D7/63 , C09D177/02 , H10N30/045 , H10N30/092 , H10N30/85
Abstract: Parts having piezoelectric properties may be formed using compositions comprising a plurality of piezoelectric particles dispersed in at least a portion of a polymer material comprising at least one thermoplastic polymer, and at least one thermal crosslinking agent dispersed in at least a portion of the polymer material. The composition is formable at a melt processing temperature that is at or above a melting point or softening temperature of the at least one thermoplastic polymer for a melt processing time that retains at least a majority of the at least one thermal crosslinking agent in a non-crosslinked state. The at least one thermal crosslinking agent may be present in the polymer material a) covalently bonded to at least a portion of the polymer material, b) covalently bonded to at least a portion of the piezoelectric particles, or c) any combination thereof.
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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.
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公开(公告)号：US20170236613A1
公开(公告)日：2017-08-17
申请号：US15044456
申请日：2016-02-16
Applicant: XEROX CORPORATION
Inventor： Rachel PRESTAYKO , Sarah J. VELLA , Carolyn MOORLAG , Barkev KEOSHKERIAN
Abstract: A conductive polymer composite includes: a thermoplastic polymer; a plurality of carbon nanotubes; and a plurality of metallic particulates in an amount ranging from about 0.5% to about 80% by weight relative to the total weight of the conductive polymer composite.
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