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11.发明申请公开(公告)号：US20190233665A1
公开(公告)日：2019-08-01
申请号：US15886381
申请日：2018-02-01
Applicant: Xerox Corporation
Inventor： Naveen Chopra , Guerino G. Sacripante , Valerie M. Farrugia
IPC: C09D11/104 , C09D11/03 , C09D11/38 , C08L67/00 , C08K3/08
CPC classification number: C09D11/104 , C08K3/015 , C08K3/08 , C08K2003/0806 , C08K2201/005 , C08K2201/011 , C08L67/00 , C09D11/03 , C09D11/30 , C09D11/38 , C08L67/02
Abstract: A composite including a sodium sulfonated polyester matrix; wherein the sodium sulfonated polyester has a degree of sulfonation of at least about 3.5 mol percent; and a plurality of silver nanoparticles dispersed within the matrix. An aqueous ink composition including water; an optional co-solvent; an optional colorant; and a composite comprising a sodium sulfonated polyester matrix; wherein the sodium sulfonated polyester has a degree of sulfonation of at least about 3.5 mol percent; and a plurality of silver nanoparticles dispersed within the matrix. A method including heating a sodium sulfonated polyester resin in water, wherein the sodium sulfonated polyester has a degree of sulfonation of at least about 3.5 mol percent; adding a solution a silver (I) ion to the heated resin in water to form a mixture; optionally, adding a reducing agent to the mixture; forming an emulsion of composite particles comprising a sodium sulfonated polyester matrix and a plurality of silver nanoparticles disposed within the sodium sulfonated polyester matrix.
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公开(公告)号：US10328688B2
公开(公告)日：2019-06-25
申请号：US15496709
申请日：2017-04-25
Applicant: Xerox Corporation , Palo Alto Research Center Incorporated
Inventor： Naveen Chopra , Peter Gordon Odell , Steven E. Ready , Eric Peeters , Timothy D. Stowe , Ashish Pattekar , David K. Biegelsen
Abstract: A dampening fluid useful in offset ink printing applications contains water and a surfactant whose structure can be altered. The alteration in structure aids in reducing accumulation of the surfactant on the surface of an imaging member. The surfactant can be decomposed, switched between cis-trans states, or polymerizable with ink that is subsequently placed on the surface.
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公开(公告)号：US20180100075A1
公开(公告)日：2018-04-12
申请号：US15290396
申请日：2016-10-11
Applicant: Xerox Corporation
Inventor： Naveen Chopra , Gordon Sisler , Saleh Jiddawi , C. Geoffrey Allen , Carolyn Moorlag
IPC: C09D11/101 , C09D11/104 , C09D135/02 , C09D135/00 , B29C67/00
CPC classification number: C09D11/101 , B29C64/00 , B29C64/124 , B29C67/00 , B29K2033/08 , B33Y10/00 , B33Y70/00 , B33Y80/00 , C09D11/00 , C09D11/104 , C09D135/00 , C09D135/02 , G03F7/0037
Abstract: A curable ink composition for forming a three-dimensional (3D) object via a digital additive manufacturing system is provided. The composition may comprise greater than about 30 weight % of one or more oligomers, at least two monomers comprising a lowest viscosity monomer and a highest viscosity monomer, one or more photoinitiators, and optionally, one or more additives. The ratio of the weight % of the total amount of oligomers to the weight % of the total amount of monomers may be at least about 0.5 and the ratio of the weight % of the lowest viscosity monomer to the weight % of the highest viscosity monomer may be at least about 5.
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公开(公告)号：US09938422B2
公开(公告)日：2018-04-10
申请号：US15278932
申请日：2016-09-28
Applicant: XEROX CORPORATION
Inventor： Kentaro Morimitsu , Jennifer L. Belelie , Naveen Chopra , Gabriel Iftime , Peter G. Odell
IPC: C09D11/38 , C09D11/34 , C09D11/328
CPC classification number: C09D11/38 , C09D11/328 , C09D11/34
Abstract: A phase change ink composition suitable for high speed ink jet printing, including printing on coated paper substrates. In embodiments, the phase change ink composition comprises both a crystalline compound and an amorphous compound, and optionally, a colorant, which provides for a robust ink. The crystalline compound is an amide and the amorphous compound is an ester of tartaric acid.
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公开(公告)号：US09701064B2
公开(公告)日：2017-07-11
申请号：US13941734
申请日：2013-07-15
Applicant: Xerox Corporation
Inventor： Patricia J. Donaldson , Naveen Chopra , Jeffrey J. Folkins
CPC classification number: B41J2/125 , B22F2003/1057 , B29C64/112 , B29C64/153 , B29C64/386 , B29C64/40 , B41J2/495 , B41J3/4073
Abstract: A printer forms a three-dimensional object on a rotating substrate. The printer includes a frame that supports a cylindrical member and at least one printhead such that the first printhead is positioned to eject material onto an outer surface of the cylindrical member. The frame is movable between a first position that rotatably supports the cylindrical member and a second position that enables transfer of the cylindrical member to and from the frame. A controller operates the printhead to eject material onto the rotating cylindrical member to form the object. The controller interpolates a periodic signal generated from a position encoder to adjust the operation of the printhead based on the rotational position and velocity of the cylindrical member. The controller operates a driver to move the frame to the second position to enable removal of the cylindrical member from the printer.
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Patent Agency Ranking
公开(公告)号：US20170186514A1
公开(公告)日：2017-06-29
申请号：US14982752
申请日：2015-12-29
Applicant: XEROX CORPORATION
Inventor： Naveen Chopra , Rachel Prestayko , Sarah J. Vella
IPC: H01B7/36 , C08J3/20 , C08J3/12 , C08K5/3417
CPC classification number: H01B7/361 , C07D413/02 , C07D491/04 , C07D491/107 , C08J3/12 , C08J3/203 , C08J2355/02 , C08K5/3417 , C08L9/02 , C08L9/06 , C08L55/02 , C09D5/00 , C09D155/02 , H01B3/441 , Y10T428/31855
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.
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公开(公告)号：US09676952B2
公开(公告)日：2017-06-13
申请号：US14630629
申请日：2015-02-24
Applicant: XEROX CORPORATION
Inventor： Marcel P. Breton , Jennifer L. Belelie , Michelle N. Chretien , Naveen Chopra , Barkev Keoshkerian
IPC: B29C67/00 , B29K33/00 , B29K105/00 , B33Y10/00 , B33Y70/00 , B33Y80/00 , C09D11/34 , C09D11/101
CPC classification number: C09D11/34 , B29C64/112 , B29C64/129 , B29C64/40 , B29K2033/08 , B29K2091/00 , B29K2105/0032 , B29K2995/0021 , B33Y10/00 , B33Y70/00 , B33Y80/00 , C09D11/101 , C09D11/107 , C09D11/12
Abstract: A color three-dimensional (3D) printing system includes (1) a solid build ink for each of a plurality of colors, each solid build ink includes (a) a solid acrylate in an amount from about 40 to about 70 percent by weight, (b) a non-curable wax in an amount from about 10 to about 45 percent by weight, (c) a curable wax in an amount from about 1 to about 15 percent by weight, (d) a photoinitiator, and (e) a colorant; each solid build ink has a curing speed adjusted by a ratio of the non-curable wax to curable wax such that the initial curing speed and final hardness of each solid build ink is approximately the same for each of the plurality of colors, and (2) a support material includes the non-curable wax used in each build ink, the support material providing a scaffold for deposition of each build ink.
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公开(公告)号：US20170106586A1
公开(公告)日：2017-04-20
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
CPC classification number: C09D4/00 , B29C64/124 , B29K2105/0002 , B29K2105/0061 , B33Y10/00 , B33Y70/00 , C08F122/105 , C08F222/1006 , C09D5/00 , Y02P20/582
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.
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公开(公告)号：US09605166B2
公开(公告)日：2017-03-28
申请号：US14067443
申请日：2013-10-30
Applicant: XEROX CORPORATION
Inventor： Naveen Chopra , Jennifer L. Belelie , Barkev Keoshkerian , Michelle Chrétien
IPC: C09D11/023 , B41M1/42 , C08K5/11 , C08K5/3415 , C08K5/42 , C08K5/45 , C09D11/38 , C08K5/21 , C08K5/098 , C08K9/04 , C08L83/04 , C08L91/00
CPC classification number: C09D11/023 , B41M1/42 , C08K5/098 , C08K5/11 , C08K5/21 , C08K5/3415 , C08K5/42 , C08K5/45 , C08K9/04 , C08K2201/011 , C08L83/04 , C08L91/00 , C09D11/38
Abstract: An emulsified aqueous ink comprising an electrorheological fluid including a liquid phase and a solid phase, and a co-solvent, which is suitable for use in an indirect printing method.
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20.发明申请公开(公告)号：US20160353579A1
公开(公告)日：2016-12-01
申请号：US15232710
申请日：2016-08-09
Applicant: XEROX CORPORATION
Inventor： Naveen Chopra , Peter M. Kazmaier , Dominique J. Lalisse , Paul F. Smith
CPC classification number: H05K3/125 , B05C5/02 , B41J2/01 , H05K3/12 , H05K3/182 , H05K2203/013 , H05K2203/1157
Abstract: A process for printing a metal wire pattern on a substrate, including: printing a first salt solution including a metal ion that will undergo a reduction half-reaction; printing a second salt solution containing an oxidizing agent that will undergo an oxidation half-reaction in contact with the first salt solution, resulting in the reduction of the metal ions of the first salt solution; and allowing the first and second salt solutions to react by a galvanic reaction, causing reduced metal ions of the first salt solution to precipitate as a solid, on the substrate.
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