Xerox Corporation

Evolve Additive Solutions, Inc.

Maura A Sweeney

Grazyna E Kmiecik-Lawrynowicz

Robert D Bayley

Daniel W Asarese

Kurt B Gundlach

Mark E Mang

Luis A Sanchez

Samir Kumar

Richard L Colt

Michael F Zona

Timothy L Lincoln

Karen Ann Moffat

Chieh-Min Cheng

Shigang S Qiu

Robert W Gundlach

Zhen Lai

Juan A Morales-Tirado

Eugene Frederick Young

Susan LaFica

Melvin D Croucher

Daniel A Asarese

Brian S Wang

Daryl Walter Vanbesien

Yuhua Tong

Thomas W Smith

Enno Eric Agur

William M Schwarz

Tie Hwee Ng

David J Sanders

Ronald J Koch

Emily Louise Moore

Kevin F Marcell

Michael L Grande

Mary L McStravick

Karen L Lamora

Edward J Radigan, Jr

Susan J Lafica

Danielle Avolio

Eunhee Lee

Matthew Fabrizio

Kirk L Stamp

Daniel G Marsh

Siddhesh Nitin Pawar

Dan Asarese

Grazyna L Kmiecik-Lawrynowicz

Witold J Lawrynowicz

Anne Marie Sweeney-Jones

Robert Corleto

Julie C Pickering

Kristen Leskow

Sarah Paulson

Shigang Steven Qiu

Siddhesh Pawar

Grazyna E Kmiecik-Lawrynowycz

A part material for printing three-dimensional parts with an electrophotography-based additive manufacturing system, the part material including a composition having a grafted copolymer (including acrylonitrile units, butadiene units, aromatic units modified with polycarbonate and poly(styrene-co-maleimide)), a charge control agent, and a heat absorber. The part material is provided in a powder form having a controlled particle size, and is configured for use in the electrophotography-based additive manufacturing system having a layer transfusion assembly for printing the three-dimensional parts in a layer-by-layer manner.

ABS/polycarbonate/poly(styrene-co-maleimide) part material for electrophotography-based additive manufacturing

A low energy consumption monochrome particle includes a core latex having a core a glass transition temperature and a weight average molecular weight. A shell encapsulates the core and includes a shell latex having a shell glass transition temperature and a weight average molecular weight. The glass transition temperature of the shell latex is higher than the glass transition temperature of the core latex. The weight average molecular weight of the shell latex is lower or higher than the weight average molecular weight of the core latex. The low energy consumption monochrome particles are suitable for high speed printing in SCD systems while decreasing minimum fusing temperature, maintaining excellent hot offset and storage, and exhibiting a matte finish.

Low energy consumption monochrome particle for single component development system

A toner is described containing low melt wax and having a core and shell, which toner exhibits improved fusing performance as compared to a toner produced with a high melt wax in the core; having a core resin with a Tequal to or lower than that of the shell resin; or both.

Toner composition

A low energy consumption monochrome toner includes a surface additive package having a high charging silica compound, an aerating silica compound, a colloidal silica compound, a polymeric spacer, and a crosslinked spacer. The low energy consumption monochrome toner is suitable for high speed printing in SCD systems while decreasing minimum fusing temperature, maintaining excellent hot offset and storage, and exhibiting a matte finish.

Low energy consumption monochrome toner for single component development system

The present disclosure describes a color single component toner with desirable fusing performance.

Color toner

A process includes forming, by emulsion polymerization, polymer resin particles in a latex, the polymer resin particles being formed from a mixture including one or more monomer emulsions and a non-surfactant-based charge control agent, the emulsion polymerization is carried out with a solids content in a range from about 10 to about 30 percent by weight of the mixture, and forming toner particles from the polymer resin particles, the toner particles support a sufficient triboelectric charge for use under A-zone environmental conditions in a single-component development system.

Process for preparing latex comprising charge control agent

A toner composition with a novel surface additive package for developing images is provided. The additive package comprises a sol-gel silica, a PDMS silica, an HMDS silica, and an organic spacer such as PMMA, and melamine. The toner composition exhibits improved properties and are useful for high speed printing on Single Component Development systems.

Toner compositions for single component development system

The present disclosure describes processes for making clear, high-gloss toners, including toner compositions resulting from such processes that find applications in overcoating and gloss enhancement.

Clear styrene emulsion/aggregation toner

Disclosed is an emulsion aggregation toner substantially free of added colorants comprising a resin and a silicone wax of the formula wherein the silicone wax has a weight average molecular weight of from about 5,000 to about 17,000 and a melting temperature of from about 38&#xb0; C. to about 65&#xb0; C.

Clear toner composition

Emulsion aggregation toner comprising: a resin; a wax; a colorant; an encapsulating shell; and a silica external additive comprising: first silica particles comprising fumed silica particles surface treated with octyldimethylsiloxane and having average particle diameter about 6-20 nm, present in amount of about 0.1-1% by weight of the toner; second silica particles comprising colloidal silica particles surface treated with hexamethyldisiloxane and having average particle diameter about 80-200 nm, present in amount of about 1-2% by weight of the toner; third silica particles comprising fumed silica particles surface treated with polydimethylsiloxane and having average particle diameter about 25-65 nm, present in amount of from about 0.5-1.5% by weight of the toner; and fourth silica particles comprising fumed silica particles surface treated with hexamethyldisiloxane and having average particle diameter about 25-65 nm, present in amount of about 1-2.5% by weight of the toner.

Single component developer composition

A toner particle has a core and a shell surrounding the core, wherein the shell contains a polymerized charge enhanced spacer particle, which is a copolymer of a charge control agent and a monomer. A method of making toner particles includes forming a slurry by mixing together a first emulsion containing a resin, optionally a wax, optionally a colorant, optionally a surfactant, optionally a coagulant, and one or more additional optional additive, heating the slurry to form aggregated particles in the slurry, forming a second emulsion containing a monomer and a charge control agent, polymerizing the second emulsion to form a copolymer of the monomer and the charge control agent, and incorporating the copolymer into the toner particles, wherein the aggregated particles form a core of the toner particles.

Polymerized charge enhanced spacer particle

A process includes forming particles in a latex by emulsion polymerization of a mixture including one or more monomers in an emulsion, and about 4 percent or less by weight of the mixture of a non-surfactant-based charge control agent, the non-surfactant-based charge control agent is distributed within a matrix of the particles, and forming toner particles from the particles in the latex, the toner particles supporting a sufficient triboelectric charge for use under A-zone environmental conditions in a single-component development system.

Toner compositions

The present disclosure describes a black single component toner with desirable fusing performance.

Black toner

A toner having charge control agents which impart excellent triboelectric charging characteristics. In embodiments, the toner particles are made by a process in which charge control agent is added and adhered to the particle surface through washing steps and is maintained through the drying steps. The process of the present embodiments impart desirable charging characteristics to the toner particles.

A toner having charge control agents which impart excellent triboelectric charging characteristics. In embodiments, the toner particles are made by a process in which the toner particles are made without a shell which provides homogenous distribution of the charge control agents, providing a toner with higher charge and better environmental stability.

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Irondequoit, NY, United States of America

Maura A Sweeney