公开(公告)号：US10947424B2

公开(公告)日：2021-03-16

申请号：US16277589

申请日：2019-02-15

Applicant: XEROX CORPORATION

Inventor： Sarah J. Vella ,  Guiqin Song ,  Chad Steven Smithson ,  Naveen Chopra ,  Kurt Halfyard ,  Biby Esther Abraham

IPC: C09J9/02 ,  C09J11/04 ,  C09J11/06 ,  C09J11/08 ,  C09J125/18 ,  C09J129/14 ,  C09J161/28 ,  C09J163/00 ,  C08K5/17 ,  H01B1/22 ,  C08K3/08

Abstract: Provided herein is conductive adhesive composition comprising at least one epoxy resin, at least one polymer chosen from polyvinyl phenols and polyvinyl butyrals, at least one melamine resin, a plurality of eutectic metal alloy nanoparticles, and at least one solvent. Also provided herein is an electronic device comprising a substrate, conductive features disposed on the substrate, a conductive electrical component disposed over the conductive features, and a conductive adhesive composition disposed between the conductive features and the conductive electrical component. Further disclosed herein are methods of making a conductive adhesive composition.

公开(公告)号：US10828910B2

公开(公告)日：2020-11-10

申请号：US15921823

申请日：2018-03-15

Applicant: Xerox Corporation ,  Palo Alto Research Center Incorporated

Inventor： Naveen Chopra ,  Paul J. McConville ,  Jennifer L. Belelie ,  Anthony S. Condello ,  Robert A. Street ,  Warren Jackson

IPC: B41J3/407 ,  B41J3/00 ,  D06P5/30

Abstract: The present teachings include a process, system and article for forming a printed image on a textile. In some embodiments, the process includes coating the textile with a layer of polydiallyldimethyl ammonium chloride cationic polymer and coating the textile with the layer of polydiallyldimethyl ammonium chloride cationic polymer with a layer of poly-4-styrene sulfonate anionic polymer. The process can further include applying an ink composition to the textile having the layer of polydiallyldimethyl ammonium chloride cationic polymer layer and the layer of poly-4-styrene sulfonate anionic polymer, forming an image.

公开(公告)号：US10604668B2

公开(公告)日：2020-03-31

申请号：US16000401

申请日：2018-06-05

Applicant: Xerox Corporation

Inventor： Naveen Chopra ,  Rob Claridge ,  Biby Esther Abraham ,  Carolyn Moorlag ,  Jonathan Siu-Chung Lee ,  Guerino Sacripante

IPC: C09D11/04 ,  C09D11/104 ,  C09D11/101 ,  B41M1/06 ,  C09D11/033

Abstract: An aqueous ink composition including water, an optional co-solvent, a sulfonated polyester, and a polyurethane dispersion, and process of making thereof.

公开(公告)号：US20200032092A1

公开(公告)日：2020-01-30

申请号：US16043660

申请日：2018-07-24

Applicant: XEROX CORPORATION

Inventor： Hojjat Seyed Jamali ,  Adela Goredema ,  Naveen Chopra ,  Jonathan Lee ,  Barkev Keoshkerian

IPC: C09D11/52 ,  B22F1/00 ,  B22F9/24

Abstract: A nanoparticle composition comprising a plurality of stabilized metal-containing nanoparticles comprising silver and/or a silver alloy composite. The stabilized metal-containing nanoparticles are prepared by a method comprising reacting a silver compound with a reducing agent comprising a hydrazine compound by incrementally adding the silver compound to a first mixture comprising the reducing agent, a stabilizer and a solvent. The stabilizer comprises a mixture of a first organoamine and a second organoamine, an alkyl moiety of the first organoamine having a longer carbon chain length than the alkyl moiety of the second organoamine. The first organoamine is selected from the group consisting of decylamine, undecylamine, dodecylamine, tridecylamine, tetradecylamine and mixtures thereof. The second organoamine is selected from group consisting of butylamine, pentylamine, hexylamine, heptylamine, octylamine, nonylamine, decylamine and mixtures thereof.

公开(公告)号：US10381134B2

公开(公告)日：2019-08-13

申请号：US14982752

申请日：2015-12-29

Applicant: XEROX CORPORATION

Inventor： Naveen Chopra ,  Rachel Prestayko ,  Sarah J. Vella

IPC: C08L9/02 ,  C08L9/06 ,  C08J3/12 ,  C08J3/20 ,  H01B3/44 ,  H01B7/36 ,  C07D413/02 ,  C07D491/04 ,  C08K5/3417 ,  C07D491/107

Abstract: A composite manufacture includes an extrudable thermoplastic matrix and a photochromic colorant, the photochromic colorant conferring to the composite a reversible strain-induced color change property. Methods include adding photochromic colorant to an extrudable thermoplastic polymer matrix to form a mixture, heating the mixture to form a composite, the photochromic colorant conferring to the composite a reversible strain-induced color change property. The composite manufactures can be used in cable coatings permitting visual detection of mechanical stresses in a wire based on the reversible strain-induced color change property.

公开(公告)号：US10233332B2

公开(公告)日：2019-03-19

申请号：US15227442

申请日：2016-08-03

Applicant: Xerox Corporation

Inventor： Guiqin Song ,  Nan-Xing Hu ,  Naveen Chopra ,  Marcel P Breton

IPC: C09D4/00 ,  B05D1/38 ,  B05D3/06 ,  C09D7/63 ,  B05D1/00 ,  B05D3/02 ,  C08J3/28 ,  C23C26/00 ,  C09D133/00 ,  H05K3/38 ,  H05K1/09

Abstract: UV-curable interlayer compositions are provided. In embodiments, the interlayer composition comprises at least one aliphatic di(meth)acrylate monomer diluent having a dynamic viscosity at 25° C. of less than about 100 cps; at least one (meth)acrylate oligomer selected from epoxy (meth)acrylates, polyester (meth)acrylates, polyether (meth)acrylates, urethane (meth)acrylates and combinations thereof, the at least one(meth) acrylate oligomer having a glass transition temperature in the range of from about minus 10° C. to about 100° C. and a dynamic viscosity at 25° C. of less than about 3000 cps; and at least two photoinitiators. Multilayer structures formed using the compositions and related methods are also provided.

公开(公告)号：US10174205B2

公开(公告)日：2019-01-08

申请号：US14886909

申请日：2015-10-19

Applicant: Xerox Corporation

Inventor： Barkev Keoshkerian ,  Carolyn Moorlag ,  Edward G. Zwartz ,  Naveen Chopra ,  Marcel P. Breton ,  Sarah J. Vella

IPC: B29C67/00 ,  C09D5/00 ,  C09D4/00 ,  C08F122/10 ,  C08F222/10 ,  B29C64/106 ,  B33Y10/00 ,  B33Y70/00 ,  B29K105/00

Abstract: A process including providing a curable gellant ink composition having a phase transition temperature; heating the ink composition to a temperature above the phase transition temperature; depositing the ink composition onto a substrate; wherein upon contact with the substrate the ink composition freezes to provide a gel ink layer; treating at least a portion of the gel ink layer whereby treated gellant ink reacts to form a three-dimensional object and wherein untreated gellant ink does not react and remains in gellant form; optionally, wherein the unreacted gellant ink provides a support structure for overhang portions of the three-dimensional object.

公开(公告)号：US20180105712A1

公开(公告)日：2018-04-19

申请号：US15296755

申请日：2016-10-18

Applicant: Xerox Corporation

Inventor： Mihaela Maria Birau ,  Marcel P. Breton ,  James D. Mayo ,  Aurelian Valeriu Magdalinis ,  Jonathan Siu-Chung Lee ,  Biby Esther Abraham ,  Naveen Chopra ,  Yvan Gagnon

IPC: C09D11/38 ,  C09D11/322 ,  C09D11/101 ,  B41F9/00

CPC classification number: B41F9/00 ,  B41M1/00 ,  C09D11/037 ,  C09D11/10 ,  C09D11/101

Abstract: An ink composition for use in digital offset printing including a white colorant, a translucent colorant, or a combination thereof; wherein the white colorant, translucent colorant, or combination thereof is present in an amount of at least 50 percent by weight based on the total weight of the ink composition; at least one component selected from the group consisting of a curable monomer and a curable oligomer; at least one phase change agent; an optional dispersant; an optional photoinitiator. A process of digital offset printing including applying the ink composition onto a re-imageable imaging member surface at an ink take up temperature, the re-imageable imaging member having dampening fluid disposed thereon; forming an ink image; transferring the ink image from the re-imageable surface of the imaging member to a printable substrate at an ink transfer temperature.

公开(公告)号：US20180105705A1

公开(公告)日：2018-04-19

申请号：US15293195

申请日：2016-10-13

Applicant: XEROX CORPORATION

Inventor： Naveen Chopra ,  Baharak Bakhshaei ,  Carolyn Moorlag ,  C. Geoffrey Allen ,  Mandakini Kanungo ,  Santokh S. Badesha ,  Seemit Praharaj

IPC: C09D5/26 ,  C09D171/00 ,  C09D7/12 ,  C09D11/102 ,  B33Y10/00 ,  B33Y30/00 ,  B29C67/00

CPC classification number: C09D5/26 ,  B29C64/00 ,  B29C64/112 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/00 ,  C09D7/63 ,  C09D11/102 ,  C09D171/00

Abstract: A support material for use in additive manufacturing includes greater than about 30 weight percent up to about 70 weight percent of a C12 to C18 fatty alcohol ethoxylate, about 30 weight percent to about 70 weight percent of a C16 to C22 fatty alcohol, and a tackifier, a transition temperature measured as the temperature immediately before phase change, based on viscosity measurement, is less than about 65° C. A system for additive manufacturing includes such a support material and a build material, the ratio of C12 to C18 fatty alcohol ethoxylate to C16 to C22 fatty alcohol is selected for property matching of the support material to the build material. A method of additive manufacturing includes providing such a system and printing via an inkjet printer the support material and the build material to provide a precursor to a three-dimensional printed article.

公开(公告)号：US20180037745A1

公开(公告)日：2018-02-08

申请号：US15227442

申请日：2016-08-03

Applicant: Xerox Corporation

Inventor： Guiqin Song ,  Nan-Xing Hu ,  Naveen Chopra ,  Marcel P. Breton

IPC: C09D4/00 ,  C08J3/28 ,  C23C26/00 ,  B05D3/06 ,  B05D3/02 ,  B05D1/38 ,  C09D7/12 ,  B05D1/00

CPC classification number: C09D4/00 ,  B05D1/005 ,  B05D1/38 ,  B05D3/0254 ,  B05D3/067 ,  C08J3/28 ,  C09D7/63 ,  C09D133/00 ,  C09D133/14 ,  C23C26/00 ,  H05K1/097 ,  H05K3/386

Abstract: UV-curable interlayer compositions are provided. In embodiments, the interlayer composition comprises at least one aliphatic di(meth)acrylate monomer diluent having a dynamic viscosity at 25° C. of less than about 100 cps; at least one (meth)acrylate oligomer selected from epoxy (meth)acrylates, polyester (meth)acrylates, polyether (meth)acrylates, urethane (meth)acrylates and combinations thereof, the at least one(meth) acrylate oligomer having a glass transition temperature in the range of from about minus 10° C. to about 100° C. and a dynamic viscosity at 25° C. of less than about 3000 cps; and at least two photoinitiators. Multilayer structures formed using the compositions and related methods are also provided.