Xerox Corporation

Melanie Lynn Davis

Kimberly D Nosella

Cuong Vong

Richard P N Veregin

Abdisamed Sheik-Qasim

David R Kurceba

Guerino G Sacripante

Edward Graham Zwartz

Richard Philip Nelson Veregin

David J W Lawton

Shivanthi Easwari Sriskandha

Karen Ann Moffat

Daryl Walter Vanbesien

Ke Zhou

Paul Joseph Gerroir

Allan K Chen

Suxia Yang

Tie Hwee Ng

Juan A Morales-Tirado

Raysa Rodriguez Diaz

Mark R Elliott

Scott Edward Silver

Chieh-Min Cheng

Varun Sambhy

Jordan H Wosnick

Shigang S Qiu

Maria N V McDougall

Santiago Faucher

Zhen Lai

Steven M Malachowski

Christopher M Wolfe

Rosa M Duque

Michael J D'Amato

Jay Lee Schneider

Rashid Mahmood

Randy Pheav Tin

David J Lawton

Abdisamed Sheik Qasim

Michael Damato

Faisal Shamshad

Majid Kamel-Kasmaei

David Jw Lawton

Richard Pn Veregin

Edward G Zwartz

Disclosed herein is a toner composition, developer and additive for a toner composition. The toner composition includes toner particles including at least one resin, an optional colorant, an optional wax, and a polymeric toner additive on at least a portion of an external surface of the toner particles. The polymeric toner additive includes a polymeric resin including a fluorinated monomer, wherein the polymeric resin is less than 10% by weight crosslinked, and optionally a charge control agent comprising nitrogen containing group at 0.1 wt % to 1.5 wt % of the polymeric resin.

Toner compositions and additives

A method for assessing polymeric additive content A in a polymeric particle mixture may comprise determining a concentration B of a metal cation in a polymeric particle mixture comprising parent polymeric particles and polymeric additive particles, wherein the metal cation is selected from alkali earth metals and alkali metals, other than sodium (Na), and the metal cation is capable of forming a water-soluble base; determining a concentration C of the metal cation in the parent polymeric particles; determining a concentration D of the metal cation in the polymeric additive particles; and calculating a polymeric additive content A using formula A=(B&#x2212;C)/D.

Polymeric additives made using base addition and related methods

Disclosed herein is a toner composition, developer and additive for a toner composition. The toner composition includes toner particles including at least one resin, an optional colorant, an optional wax, and a polymeric toner additive on at least a portion of an external surface of the toner particles. The polymeric toner additive includes a polymeric resin including a fluorinated acrylic monomer, a cross-linkable monomer containing two or more vinyl groups at 8 wt % to 40 wt % of the polymeric resin, and optionally a charge control agent comprised of a nitrogen containing group at 0.1 wt % to 1.5 wt % of the polymeric resin.

A toner including toner particles comprising at least one resin, in combination with an optional colorant, and an optional wax; and a copolymer toner additive on at least a portion of an external surface of the toner particles, the copolymer toner additive comprising a first monomer having a high carbon to oxygen ratio of from about 3 to about 8; and a second monomer comprising two or more vinyl groups, wherein the second monomer is present in the copolymer in an amount of from greater than about 8 percent by weight to about 60 percent by weight, based on the weight of the copolymer; wherein the copolymer toner additive has a volume average particle diameter of from about 20 nanometers to less than about 70 nanometers. An emulsion aggregation toner process including the copolymer as a toner surface additive.

Toner compositions and processes having reduced or no titania surface additives

A polymeric composition including a copolymer comprising a first monomer having a high carbon to oxygen ratio of from about 3 to about 8; a second monomer comprising two or more vinyl groups, wherein the second monomer is present in the copolymer in an amount of from greater than about 8 percent by weight to about 40 percent by weight, based on the weight of the copolymer; and optionally, a third monomer comprising an amine, wherein the third monomer is present in an amount of from about 0.1 percent by weight to about 1.5 percent by weight, based on the weight of the copolymer; and a surfactant, wherein the surfactant has a minimum surface tension at critical micelle concentration of less than about 30 mN/m. A toner including the copolymer as a toner surface additive. An emulsion aggregation toner process including the copolymer as a toner surface additive.

Cross-linked polymeric latex prepared with a low surface tension surfactant

The present disclosure relates to toner compositions containing a high loading of white colorant of greater than 30 weight % by weight of the toner and processes thereof. The toner exhibits a lightness (L*) of at least 75.

Toner compositions with white colorants and processes of making thereof

A continuous coalescence process for preparing a sustainable toner is described which features toner with lowered melt properties and higher toner surface carbon to oxygen (C/O) ratios than previously described sustainable resins coalesced in a batch reactor.

Continuous coalescence process for sustainable toner

Toners and processes useful in providing toners suitable for electrophotographic apparatuses, including apparatuses such as digital, image-on-image, and similar apparatuses. In particular, emulsion aggregation toners that comprise toner particles having a core composed of either polyester resin or both styrene-acrylate and polyester resins. These embodiments also comprise a shell disposed over the core, wherein the shell comprises styrene-acrylate resin.

Toner particles comprising both polyester and styrene acrylate polymers having a polyester shell

The disclosure provides sustainable toner particles of from about 180 nm to about 250 nm in a sustainable toner composition having a hot offset temperature of from about 190&#xb0; C. to about 220&#xb0; C.

Optimized latex particle size for improved hot offset temperature for sustainable toners

The disclosure provides a toner composition comprising toner particles with a core and a shell, wherein the core comprises a polyester polymer and a styrene acrylate polymer, and the shell comprises a polyester polymer and, optionally, a styrene acrylate polymer, either or both of which can be the same or different from that in the core.

A method of forming toner particles includes aggregating a mixture of a latex, a wax, and an optional pigment to form pre-toner particles, and coalescing the pre-toner particles at a substantially constant target temperature selected within a range from about the glass transition temperature of the pre-toner particles to about 75&#xb0; C., thereby creating toner particles having a substantially constant particle size distribution during the coalescing step.

Toner process comprising reduced coalescence temperature

The present embodiments relate to processes of preparing toner particles. More specifically, the processes produce toner particles having high pigment loadings and desired circularity. The processes include diluting the aggregated particulate mixture prior to coalescence.

Toner processes for hyper-pigmented toners

Continuous and semi-continuous emulsion aggregation processes for the production of toner particles are presented.

Continuous production of toner

Disclosed is a toner which comprises particles comprising: (a) a core comprising: (1) a first resin; and (2) a first conductive colorant; and (b) a shell comprising: (1) a second resin; and (2) a second conductive colorant.

Emulsion aggregation toner compositions

Growing community of inventors

Hamilton, Canada

Melanie Lynn Davis