Xerox Corporation

Palo Alto Research Center Inc.

National Research Council of Canada

Edward Graham Zwartz

Guerino G Sacripante

Ke Zhou

Karen Ann Moffat

Richard P N Veregin

Valerie M Farrugia

Michael Steven Hawkins

Daryl Walter Vanbesien

Cuong Vong

T Brian McAneney

Maria N V McDougall

Raj D Patel

Kimberly D Nosella

Jordan H Wosnick

Nan-Xing Hu

Paul Joseph Gerroir

Suxia Yang

Sandra J Gardner

Gordon Sisler

Yu Qi

Allan K Chen

Kentaro Morimitsu

Guiqin Song

Enno Eric Agur

Eric Rotberg

Adela Goredema

Shigang S Qiu

Qi Zhang

Yulin Wang

Gabriel Iftime

T Hwee Ng

Rina Carlini

Caroline Melanie Turek

Kurt I Halfyard

Peter Michael Kazmaier

Vladislav Skorokhod

Shivanthi Easwari Sriskandha

Naveen Chopra

Barkev Keoshkerian

Carolyn Patricia Moorlag

Michael A Hopper

Santiago Faucher

Man C Tam

Patricia Ann Burns

Melanie Lynn Davis

Shadi L Malhotra

Stephan V Drappel

C Geoffrey Allen

Brynn Mary Dooley

Tie Hwee Ng

Emily Louise Moore

Christine Deborah Anderson

Marcel Philippe Breton

Peter Gordon Odell

Hadi K Mahabadi

Armin R Volkel

Sarah Jane Vella

Gregory McGuire

Jaan Noolandi

Christopher A Wagner

Juan A Morales-Tirado

Alan Richard Kuntz

Joseph August Bartel

David R Kurceba

James R Combes

Santokh Singh Badesha

David Kalman Biegelsen

Reiner Eschbach

John F Yanus

Shen-Ge Wang

Chieh-Min Cheng

Damodar M Pai

Jennifer Lynne Belelie

Ah-Mee Hor

David Joseph Gervasi

William W Limburg

James Daniel Mayo

Dale S Renfer

Paul Farrell Smith

Raymond W Wong

Timothy P Bender

Michelle Chretien

Biby Esther Abraham

Ashish V Pattekar

Richard P Veregin

Frank Ping-Hay Lee

Joo T Chung

John L Pawlak

Fumii Higuchi

Danielle C Boils

Shigeng Li

William H Hollenbaugh, Jr

Tyler B Norsten

Joseph L Leonardo

Robert J Kleckner

Gregory Joseph Kovacs

Carol A Jennings

David Michael Thompson

Richard Philip Nelson Veregin

Lars Erik Swartz

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 compositions comprising a plurality of piezoelectric particles non-covalently interacting with at least a portion of a polymer material via π-π bonding, hydrogen bonding, electrostatic interactions stronger than van der Waals interactions, or any combination thereof. The piezoelectric particles may be dispersed in the polymer material and remain substantially non-agglomerated when combined with the polymer material. The polymer material may comprise at least one thermoplastic polymer, optionally further including a polymer precursor. 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.

Piezoelectric composites featuring noncovalent interactions and use thereof in additive manufacturing

An electrochemical device is disclosed, which includes an anode and a cathode. The electrochemical device also includes an extruded electrolyte composition disposed between the anode and the cathode. The cathode and/or the anode of the electrochemical device may be disposed in a stacked geometry or in a lateral x-y plane geometry. The electrolyte composition may include a gel polymer electrolyte. The electrolyte composition is disposed between the anode and the cathode in a laterally non-continuous pattern. A method of producing an electrolyte layer of an electrochemical device is also disclosed.

Biodegradable electrochemical device and methods thereof

Melt emulsification may be employed to form elastomeric particulates in a narrow size range when nanoparticles are included as an emulsion stabilizer. Such processes may comprise combining a polyurethane polymer and nanoparticles with a carrier fluid at a heating temperature at or above a melting point or a softening temperature of the polyurethane polymer, applying sufficient shear to disperse the polyurethane polymer as liquefied droplets in the presence of the nanoparticles in the carrier fluid at the heating temperature, cooling the carrier fluid at least until elastomeric particulates in a solidified state form, and separating the elastomeric particulates from the carrier fluid. In the elastomeric particulates, the polyurethane polymer defines a core and an outer surface of the elastomeric particulates and the nanoparticles are associated with the outer surface. The elastomeric particulates may have a D50 of about 1 μm to about 1,000 μm.

Nanoparticle-coated elastomeric particulates and methods for production and use thereof

A process including combining polystyrene and a first solvent to form a polystyrene solution; heating the polystyrene solution; adding a second solvent to the polystyrene solution with optional stirring whereby polystyrene microparticles are formed via microprecipitation; optionally, cooling the formed polystyrene microparticles in solution; and optionally, removing the first solvent and second solvent. A polystyrene microparticle formed by a microprecipitation process, wherein the polystyrene particle has a spherical morphology, a particle diameter of greater than about 10 micrometers, and a weight average molecular weight of from about 38,000 to about 200,000 Daltons. A method of selective laser sintering including providing polystyrene microparticles formed by a microprecipitation process; and exposing the microparticles to a laser to fuse the microparticles.

Precipitation process for preparing polystyrene microparticles

The present disclosure provides processes for producing images with toner particles. In embodiments, toner particles of a certain diameter in size are applied to a substrate as an incomplete monolayer, and then fused to form an image that is a complete monolayer and possesses a thickness less than the diameter of the particles utilized to form the image.

Imaging processes

Melt emulsification may be employed to form elastomeric particulates in a narrow size range when nanoparticles and a sulfonate surfactant are included as emulsion stabilizers. Such processes may comprise combining a polyurethane polymer, a sulfonate surfactant, and nanoparticles with a carrier fluid at a heating temperature at or above a melting point or softening temperature of the polyurethane polymer, applying sufficient shear to disperse the polyurethane polymer as liquefied droplets in the presence of the nanoparticles in the carrier fluid at the heating temperature, cooling the carrier fluid at least until elastomeric particulates in a solidified state form, and separating the elastomeric particulates from the carrier fluid. The polyurethane polymer defines a core and an outer surface of the elastomeric particulates, and the nanoparticles are associated with the outer surface. The elastomeric particulates may have a span of about 0.9 or less.

Nanoparticle-coated elastomeric particulates and surfactant-promoted methods for production and use thereof

A method for producing polysulfone micro-particles for 3D printing disclosed. For example, the method includes creating a mixture of polysulfone by dissolving polysulfone in an organic solvent, creating an aqueous solution of a polymeric stabilizer or a surfactant, adding the mixture of polysulfone to the aqueous solution to create a polysulfone solution, and processing the polysulfone solution to obtain polysulfone micro-particles having a desired particle size, a desired particle size distribution, and a desired shape.

Method for producing sulfone polymer micro-particles for SLS 3D printing

A method for marking a printed object is disclosed. For example, the method includes printing a three-dimensional (3D) object via a fused filament fabrication (FFF) printer, receiving a desired color marking to be marked on a surface of the 3D object, and controlling a point energy source to emit energy on a thermal treatment layer of the 3D object in accordance with the desired color marking.

Thermal marking of 3D printed objects

The present teachings include powder coating including a plurality of core/shell particles. Each particle of plurality of core/shell particles has a size of from about 3 microns to about 100 microns. Each particle of the plurality of core/shell particles has a core including a cross-linkable crystalline polyester resin having a melting temperature of less than about 150&#xb0; C. Each particle of the plurality of core/shell particles has a shell including a cross-linkable amorphous polyester resin having a glass transition temperature greater than 40&#xb0; C. Each particle of the plurality of core/shell particles includes a thermal initiator.

Low melt particles for surface finishing of 3D printed objects

A method for printing a flexible printed battery is disclosed. For example, the method includes printing, via a three-dimensional (3D) printer, a first substrate of the flexible thin-film printed battery, printing a first current collector on the first substrate, printing a first layer on the first current collector, printing, via the 3D printer, a second substrate, printing a second current collector on the second substrate, printing a second layer on the second current collector, and coupling the first substrate and the second substrate around a paper separator membrane moistened with an electrolyte that is in contact with the first layer and the second layer.

Flexible thin-film printed batteries with 3D printed substrates

A toner process including a) mixing reagents comprising at least one amorphous resin, an optional crystalline resin, an optional styrene, acrylate or styrene/acrylate, an optional wax, and an optional colorant to form an emulsion comprising a resin particle; b) adding at least one aggregating agent and aggregating said resin particle to form a nascent toner particle; c) optionally, adding one or more resins to form a shell on said nascent toner particle to yield a core-shell particle; d) adding a first chelating agent and a second chelating agent; wherein said first chelating agent and said second chelating agent are different; e) freezing particle growth to form an aggregated toner particle; f) coalescing said aggregated toner particle to form a toner particle; and g) optionally, collecting said toner particle.

Toner process employing dual chelating agents

A composition for use in 3D printing includes an unsaturated polyester resin including an ethylenically unsaturated monomer, a first diol monomer and a second diol monomer.

Compositions comprising unsaturated crystalline polyester for 3D printing

Methods of using a toner as a printable adhesive are provided. In embodiments, a method of adhering substrates is provided which comprises disposing a cold pressure fix toner comprising a phase change material on a first substrate via xerography to form an unfused layer of the cold pressure fix toner on the first substrate; placing a second substrate on the unfused layer of the cold pressure fix toner; and subjecting the cold pressure fix toner to a pressure to form a bonded article comprising the first substrate, an adhesive layer formed from the cold pressure fix toner, and the second substrate. Methods of applying an adhesive to a substrate and bonded articles are also provided.

Method of using a toner as a printable adhesive

A process for producing unsaturated polyester microparticles comprising: melt-mixing an unsaturated polyester and an oil in an extruder; washing the microparticles with an organic solvent to reduce the amount of oil; and removing the organic solvent to form the microparticles.

Curable unsaturated crystalline polyester powder and methods of making the same

Provided herein is a powder composition comprising a silica-infused crystalline polyester particle for laser sintering comprising at least one crystalline polyester resin and silica nanoparticles present in the particle an amount ranging from about 10 wt % to about 60 wt % relative to the total weight of the particle. Further provided herein are methods of preparing silica-infused crystalline polyester particles.

Powders for laser sintering

Growing community of inventors

Mississauga, Canada

Edward Graham Zwartz