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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：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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5.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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Patent Agency Ranking
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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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：US20250110087A1
公开(公告)日：2025-04-03
申请号：US18479206
申请日：2023-10-02
Applicant: XEROX CORPORATION , NATIONAL RESEARCH COUNCIL OF CANADA
Inventor： Sarah J. VELLA , Silvio E. KRÜGER , Edward G. ZWARTZ , Alexandros VASILEIOU , Johann JUNGINGER , Hamed O. TABRIZI
Abstract: Examples are disclosed herein relating to detecting a change in a substrate. A system can include a transducer that can be frequency matched to a substrate and to provide an electrical signal that can characterize a reflected sound wave by the substrate. The system can include an acoustic wave analysis system to detect a change in a physical characteristic of the substrate.
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9.发明公开公开(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.
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10.发明公开公开(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.
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