Xerox Corporation

Brian J Andaya

Joseph L Leonardo

Joo T Chung

Santiago Faucher

Shigang S Qiu

Fumii Higuchi

Timothy L Lincoln

Allan K Chen

Mark E Mang

Kevin F Marcell

Edward Graham Zwartz

Chieh-Min Cheng

Yuhua Tong

Rina Carlini

Michael Steven Hawkins

Zhen Lai

Juan A Morales-Tirado

Eugene Frederick Young

John L Pawlak

Christopher M Wolfe

Tab Alan Tress

D Paul Casalmir

Kimberly Anne Stoll

Anthony Uttaro, Jr

Maria M Barden

Emine Irmak Serifoglu

Tab A Tress

The disclosure describes a pigment of certain surface area for use in toner.

Colored toners

The present disclosure provides a toner comprising a bioresin and two waxes with improved fuser release.

Toner with improved fusing performance

The continuous process for manufacturing toners disclosed herein includes continuously feeding components of a toner composition into a feed section of a screw extruder at a controlled rate. The continuous process for manufacturing toners may include feeding the components of a toner composition into the feed section of a screw extruder without performing an external or secondary dispersion step. That is to say, the components of the toner composition may be fed directly into the extruder without using dispersions of individual components as used in batch processes. Rather, the toner components are added to the extruder in dry form, melt-mixed, and may be dispersed in aqueous form in the extruder. The process may produce micron-sized toner particles, thus no further size reduction may be necessary.

Continuous process for manufacturing toners

A process for making a latex emulsion suitable for use in a toner composition includes contacting at least one amorphous polyester resin with a viscosity reducing additive in the absence of an organic solvent to form a resin mixture either via an extruder or batch process, and adding a surfactant, neutralizing agent, and deionized water to the resin mixture.

Processes for producing polyester latexes via solvent-free emulsification

A screw extruder is presented including a feed hopper for receiving materials and a body member having at least one supply port and at least one outlet port. The screw extruder also includes a screw positioned within the body member and movable along a channel defining a longitudinal axis. The screw extruder further includes a drive shaft for rotatably driving the screw along the channel. The screw extruder may be configured to mix the materials received via the feed hopper with a series of one or more forward, neutral, and reverse kneading elements.

Screw extruder for continuous and solvent-free resin emulsification

The present disclosure provides processes for producing toner particles, and toner particles produced by such processes. The processes of the present disclosure combine melt-mixing and grinding of toner components to produce toner particles, followed by a coalescing treatment which provides toner particles having desirable spherical properties.

Toner compositions

A process for making a self-emulsifying composite suitable for use in forming latex emulsions includes contacting a resin with a solid or highly concentrated surfactant, a solid neutralizing agent in the absence of water and an organic solvent to form a mixture, melt mixing the mixture, and forming a self-emulsifying composite of the melt mixed mixture such as a granule. Self-emulsifying granules are also provided and configured to form a latex emulsion when added to water, which may then be utilized to form a toner.

Self emulsifying granules and solvent free process for the preparation of emulsions therefrom

A process for making a latex emulsion suitable for use in a toner composition includes contacting a resin with a solid neutralizing agent in the absence of an organic solvent to form a mixture either via a co-feeding process or a pre-blend mixture, and adding a solid or aqueous surfactant to the pre-blend mixture or prior to melt mixing the mixture.

Various solvent-assisted extrusion processes are disclosed that are suitable for forming high yield, low coarse content, polyester latexes that may be utilized in forming a toner.

Solvent-assisted continuous emulsification processes for producing polyester latexes

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Ontario, NY, United States of America

Brian J Andaya