公开(公告)号：US11143958B2

公开(公告)日：2021-10-12

申请号：US15944883

申请日：2018-04-04

Applicant: Xerox Corporation

Inventor： Jennifer L. Belelie ,  Michelle N. Chrétien ,  Paul J. McConville ,  Jason O'Neil ,  Barkev Keoshkerian ,  Anthony S. Condello

IPC: G03F7/00 ,  G03F7/20 ,  C08L33/08 ,  C08L33/10 ,  C08L83/04 ,  B41M3/00 ,  B41M3/06 ,  B41M3/16 ,  B44C3/02 ,  C08F2/48

Abstract: A process including providing a substantially flat printed image on a substrate; disposing a curable gellant composition onto the printed image in registration with the printed image, successively depositing additional amounts of the gellant composition to create a raised image in registration with the printed image; and curing the deposited raised image. A process including providing a printed image on a substrate; disposing a curable non-gellant composition onto the printed image in registration with the printed image; and disposing a curable gellant composition onto the printed image in registration with the printed image; to create a raised image in registration with the printed image; and curing the deposited raised image. An ultraviolet curable phase change gellant composition including a radiation curable monomer or prepolymer, a photoinitiator, a silicone polymer or pre-polymer, and a gellant.

公开(公告)号：US10752797B2

公开(公告)日：2020-08-25

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 ,  B82Y40/00 ,  B82Y30/00

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：US20200038949A1

公开(公告)日：2020-02-06

申请号：US16277545

申请日：2019-02-15

Applicant: XEROX CORPORATION

Inventor： Guiqin Song ,  Sarah J. Vella ,  Barkev Keoshkerian

IPC: B22F1/00 ,  B22F9/24 ,  C09D11/52 ,  C09D11/38

Abstract: Provided herein is a composition for eutectic metal alloy nanoparticles having an average particle size ranging from about 0.5 nanometers to less than about 5000 nanometers and at least one organoamine stabilizer. Also provided herein is a process for preparing eutectic metal alloy nanoparticles comprising mixing at least one organic polar solvent, at least one organoamine stabilizer, and a eutectic metal alloy to create a mixture; sonicating the mixture at a temperature above the melting point of the eutectic metal alloy; and collecting a composition comprising a plurality of eutectic metal alloy nanoparticles having an average particle size ranging from about 0.5 nanometers to less than about 5000 nanometers. Further disclosed herein are hybrid conductive ink compositions comprising a component comprising a plurality of metal nanoparticles and a component comprising a plurality of eutectic metal alloy nanoparticles.

公开(公告)号：US10308827B2

公开(公告)日：2019-06-04

申请号：US14927844

申请日：2015-10-30

Applicant: Xerox Corporation

Inventor： Naveen Chopra ,  Barkev Keoshkerian ,  Carolyn Moorlag ,  C. Geoffrey Allen ,  Marcel P. Breton ,  Gordon Sisler

IPC: B33Y10/00 ,  C09D11/38 ,  C09D11/101 ,  B29C64/112 ,  C09D11/34 ,  B33Y70/00

Abstract: A curable ink including at least one monomer, oligomer, or prepolymer; an optional photoinitiator; an optional colorant; and amide gellant having a molecular weight of from about 800 to about 2,500 g/mole; wherein the ink has an onset of gelation defined by the glass transition of the low molecular weight amide gellant according to the relationship Onset of Gelation (K)=(Constant) Tg of gellant (K); wherein the Constant is less than 1.5. A process for printing a three-dimensional article including providing a curable ink; depositing the curable ink in one or more layers; and curing the deposited ink to form the three-dimensional object.

公开(公告)号：US20180044545A1

公开(公告)日：2018-02-15

申请号：US15235772

申请日：2016-08-12

Applicant: XEROX CORPORATION

Inventor： Michelle N. Chrétien ,  Jennifer L. Belelie ,  Naveen Chopra ,  Barkev Keoshkerian

IPC: C09D11/101 ,  C09D11/037 ,  C09D11/30 ,  B41J11/00 ,  C09D11/328 ,  C09D11/36 ,  C09D11/38 ,  C08F222/10 ,  C09D11/107 ,  C09D11/322

CPC classification number: C09D11/101 ,  B41M7/0081 ,  C08F222/1006 ,  C08F2222/1013 ,  C09D4/00 ,  C09D11/32 ,  C09D11/322 ,  C09D11/38

Abstract: The present disclosure provides a photocurable ink comprising a radiation curable material selected from the group consisting of a curable monomer, a curable oligomer, and mixtures thereof; a photoinitiator; and a surfactant, which is suitable for use in an indirect printing method. The present disclosure also provides a method of printing using a photocurable ink.

公开(公告)号：US20180022043A1

公开(公告)日：2018-01-25

申请号：US15215285

申请日：2016-07-20

Applicant: XEROX CORPORATION

Inventor： Barkev Keoshkerian ,  Jordan H. Wosnick ,  Rachel Prestayko ,  Kimberly D. Nosella ,  Valerie M. Farrugia ,  Edward G. Zwartz

IPC: B29C67/00 ,  B33Y70/00 ,  B33Y10/00

CPC classification number: B33Y70/00 ,  B29C64/135 ,  B29C64/153 ,  B29K2021/003 ,  B29K2067/00 ,  B29K2105/251 ,  B33Y10/00

Abstract: A method of selective laser sintering is disclosed. The method comprises providing composite particles made by emulsion aggregation, the composite particles comprising at least one thermoplastic polymer and at least one carbon particle material. The composite particles are exposed to a laser to fuse the composite particles.

公开(公告)号：US20170298536A1

公开(公告)日：2017-10-19

申请号：US15098247

申请日：2016-04-13

Applicant: XEROX CORPORATION

Inventor： Valerie M. Farrugia ,  Barkev Keoshkerian ,  Michelle N. Chrétien

IPC: D01F1/10 ,  D01F8/06 ,  D01F8/14 ,  B33Y70/00

CPC classification number: D01F1/103 ,  B29C64/118 ,  B33Y70/00 ,  C08F283/02 ,  C08F291/06 ,  C08F291/14 ,  C08F292/00 ,  C08J3/126 ,  C08J2367/02 ,  C08J2425/06 ,  D01F6/56 ,  D01F6/92 ,  D01F8/06 ,  D01F8/14 ,  D10B2321/121 ,  D10B2331/04 ,  C08F212/08

Abstract: A composite filament includes a core particle comprising a sulfonated polyester matrix and a plurality of silver nanoparticles dispersed within the matrix, and a shell polymer disposed about the core particle, and methods of making thereof. Various articles can be manufactured from such composite filaments.

公开(公告)号：US09782771B2

公开(公告)日：2017-10-10

申请号：US14599170

申请日：2015-01-16

Applicant: XEROX CORPORATION

Inventor： Sarah J. Vella ,  Jennifer L. Belelie ,  Barkev Keoshkerian ,  James D. Mayo ,  Brynn Dooley

IPC: B01L3/00 ,  D21H21/16 ,  D21H23/50 ,  D21H19/48 ,  D21H25/04 ,  D21H27/02 ,  B81C1/00

CPC classification number: B01L3/502707 ,  B01L2300/0816 ,  B01L2300/126 ,  B01L2300/165 ,  B81C1/00 ,  D21H19/16 ,  D21H19/48 ,  D21H19/84 ,  D21H21/16 ,  D21H23/50 ,  D21H25/04 ,  D21H27/02

Abstract: Provided is a method of patterning a substrate. The method includes depositing, in a first predetermined pattern, hydrophobic material on a first surface of a hydrophilic substrate. The method includes permeating the hydrophobic material through a thickness of the substrate. The method includes exposing the hydrophobic material to UV-light and sufficiently solidifying the permeated hydrophobic material. The sufficiently solidified hydrophobic material forms a liquid-impervious barrier that separates the substrate into at least one discrete region.

公开(公告)号：US20170203597A1

公开(公告)日：2017-07-20

申请号：US15001525

申请日：2016-01-20

Applicant: XEROX CORPORATION

Inventor： Naveen Chopra ,  Christopher A. Wagner ,  Michelle N. Chrétien ,  Jennifer L. Belelie ,  Barkev Keoshkerian

IPC: B41M3/16 ,  B41J2/01

CPC classification number: B41M3/16 ,  B41C1/05 ,  B41J2/01 ,  B41J3/32 ,  B41J3/407 ,  B41J2002/012 ,  B41M1/04 ,  B41N1/06 ,  B41N1/12 ,  B41N1/22

Abstract: An improved apparatus and method for forming images comprising Braille, raised print, regular print, or a combination is described. The architecture for the printing of Braille dots using marking material such as UV gel ink. The UV gel ink is deposited on a drum that has an array of closely packed raised features like mesas that are cup-shaped. The mesas on drum are filled with the UV gel ink and transferred to paper or another substrate. Partial curing can occur on the drum and the dots can be fully cured after transfer to the substrate. The mesas are shaped so that the dots take on a final shape consistent with usual Braille features.

公开(公告)号：US09676921B2

公开(公告)日：2017-06-13

申请号：US14067191

申请日：2013-10-30

Applicant: XEROX CORPORATION

Inventor： Jennifer L. Belelie ,  Guerino G. Sacripante ,  Michelle N. Chrétien ,  Barkev Keoshkerian ,  Naveen Chopra

IPC: C08K5/45 ,  C09D11/36 ,  C08K5/06 ,  C08K3/04 ,  C08K5/5419 ,  C09D167/02 ,  C08K5/3415 ,  C09D167/06 ,  C09D11/101 ,  C09D11/30 ,  C08K3/00 ,  C08K5/00

CPC classification number: C08K5/06 ,  C08K3/011 ,  C08K3/04 ,  C08K5/0025 ,  C08K5/3415 ,  C08K5/45 ,  C08K5/5419 ,  C09D11/101 ,  C09D11/30 ,  C09D167/06

Abstract: The present disclosure provides an ink comprising a latex comprising a photoinitiator and at least one unsaturated polyester, which is suitable for use in an indirect printing method.