公开(公告)号：CA2847987C

公开(公告)日：2018-01-16

申请号：CA2847987

申请日：2014-04-01

Applicant: XEROX CORP

Inventor： AGUR ENNO E ,  LOPEZ KARINA ,  FAUCHER SANTIAGO ,  ABRAHAM BIBY

IPC: C09D11/326 ,  C09D11/34

Abstract: A dry flushed pigment comprises a dry pigment and a flushing agent. Particles of the dry pigment are dispersed into the flushing agent. The dry flushed pigment may have at least 20 percent by weight dry pigment. The dry flushed pigment may have a range of 20 to 80 percent dry pigment by weight. A pigment concentrate comprising a dry flushed pigment and one or more of a group of an ink carrier, a dispersant, or a synergist, where the dry flushed pigment is mixed with one or more of the ink carrier, dispersant or synergist and then milled to create the pigment concentrate. The pigment in the pigment concentrate has a Z-average particle size in the range of 75 nm to 250 nm. The pigment in the pigment concentrates is present in the amount from about 15 to 60 percent by weight of the pigment concentrate.

公开(公告)号：CA2558423C

公开(公告)日：2013-01-08

申请号：CA2558423

申请日：2006-09-01

Applicant: XEROX CORP

Inventor： CHEN ALLAN K ,  MARIC MILAN ,  NG TIE HWEE ,  LIEBERMANN GEORGE ,  AGUR ENNO E ,  MAHABADI HADI K

IPC: C08G63/688 ,  C08G63/183 ,  C08G63/79 ,  C08G63/89 ,  C09D11/10

Abstract: An emulsion polymerization process comprising polymerizing monomer in an emulsion in a reaction vessel at a first temperature to form a resin; cooling the reaction vessel to a second temperature that is above the softening point of the resin yet below the temperature required for significant depolymerization reaction to occur; and adding water to the cooled reaction vessel in an amount sufficient to effect phase inversion with mixing for a sufficient time to form an aqueous latex emulsion in the absence of a surfactant.

公开(公告)号：BRPI0703949A

公开(公告)日：2008-05-27

申请号：BRPI0703949

申请日：2007-10-11

Applicant: XEROX CORP

Inventor： AGUR ENNO E ,  SACRIPANTE GUERINO G ,  ZWARTZ EDWARD G ,  HAWKINS MICHAEL S

IPC: G03G9/087

Abstract: A process for preparing a toner, includes solvent flashing wax and resin together to emulsify the resin and wax to a sub-micro size; mixing the wax and resin emulsion with a colorant, and optionally a coagulant to form a mixture; heating the mixture at a temperature below a glass transition temperature of the resin to aggregate the resin, colorant, and wax, to form aggregated particles; heating the aggregated particles and coalescent agent at a temperature above the glass transition temperature of said resin, to coalesce the aggregated particles to form toner particles, optionally cooling the mixture; and isolating the toner particles.

公开(公告)号：BRPI0502053A

公开(公告)日：2006-02-14

申请号：BRPI0502053

申请日：2005-06-03

Applicant: XEROX CORP

Inventor： AGUR ENNO E ,  BARTEL JOSEPH A ,  BURNS PATRICIA A ,  BOILS-BOISSIER DANIELLE C ,  KAO SHEAU V

IPC: C08J3/215 ,  C08K5/00 ,  C08K5/01 ,  C08L91/06 ,  G03G9/08 ,  G03G9/087

Abstract: A wax emulsion comprised of polyethylene wax and one or more surfactants in an aqueous medium, wherein the polyethylene wax has a degree of crystallinity of from about 50% to about 80% by weight of the polyethylene wax, is provided. The wax emulsion is made by emulsifying the polyethylene wax, one or more surfactants and an aqueous medium in a vessel at a temperature at or above the melting point of the polyethylene wax to form an emulsified product, and subsequently cooling the emulsified product to ambient temperature at a cooling rate of at least 10° C. per minute. The wax emulsion is preferably incorporated into toner particles prepared by emulsion/aggregation/coalescing.

公开(公告)号：CA2510521A1

公开(公告)日：2005-12-28

申请号：CA2510521

申请日：2005-06-22

Applicant: XEROX CORP

Inventor： VANBESIEN DARYL W ,  AGUR ENNO E ,  MOFFAT KAREN A ,  SANDERS DAVID J

IPC: G03G9/08 ,  G03G9/087 ,  G03G9/09

Abstract: A toner includes particles of a resin, an optional colorant, a first crystalline polymeric wax and a second crystalline polymeric wax, where the first crystalline polymeric wax is a crystalline polyethylene wax, the second crystalline polymeric wax is selected from aliphatic polar amide functionalized waxes, carboxylic acid-terminated polyethylene waxes, aliphatic waxes consisting of esters of hydroxylated unsaturated fatty acids, high acid waxes, and mixtures thereof, and the tone r particles are prepared by an emulsion aggregation process.

公开(公告)号：DE69320131T2

公开(公告)日：1998-12-10

申请号：DE69320131

申请日：1993-08-26

Applicant: XEROX CORP

Inventor： MAHABADI HADI K ,  AGUR ENNO E ,  DALAL EDUL N

IPC: C08G63/676 ,  G03G9/087

公开(公告)号：BRPI0902371A2

公开(公告)日：2010-04-13

申请号：BRPI0902371

申请日：2009-07-20

Applicant: XEROX CORP

Inventor： AGUR ENNO E ,  VANBESIEN DARYL W ,  ZHOU KE ,  HAWKINS MICHAEL S ,  VEREGIN RICHARD P N ,  ZWARTZ EDWARD G ,  MCDOUGALL MARIA N V

IPC: G03G9/00

Abstract: The present disclosure provides toners and processes for preparing toner particles possessing excellent charging characteristics. The process includes forming a dispersion including at least one organic and/or organometallic charge control agent, and then combining that dispersion with an emulsion suitable for use in forming toner particles.

公开(公告)号：CA2532398C

公开(公告)日：2009-10-06

申请号：CA2532398

申请日：2006-01-06

Applicant: XEROX CORP

Inventor： BARTEL JOSEPH A ,  SKOROKHOD VLADISLAV ,  VEREGIN RICHARD P N ,  QIU SHIGANG S ,  BURNS PATRICIA A ,  MCANENEY T BRIAN ,  MOORE EMILY L ,  AGUR ENNO E ,  BASHIR WAFA F ,  MCDOUGALL MARIA N V ,  ZWARTZ EDWARD G ,  ZHOU KE ,  VANBESIEN DARYL ,  GERROIR PAUL J

IPC: G03G9/08 ,  G03G9/10

Abstract: Toner particles comprise resin, wax and optionally colorants, and the wax is substantially excluded from the interior core of the toner particles. Processes for preparing such toner particles comprise providing an aqueous dispersion of resin particles and optionally colorants, mixing the aqueous dispersion in presenc e of a coagulant, aggregating to form particles, coalescing to form fused particles , and removing the fused particles from the aqueous dispersion. Wax dispersions ca n be added either after mixing or during aggregation, so that wax is excluded fro m the core of the toner particles.

公开(公告)号：CA2510521C

公开(公告)日：2009-09-08

申请号：CA2510521

申请日：2005-06-22

Applicant: XEROX CORP

Inventor： VANBESIEN DARYL W ,  AGUR ENNO E ,  SANDERS DAVID J ,  MOFFAT KAREN A

IPC: G03G9/08 ,  G03G9/087 ,  G03G9/09

Abstract: A toner includes particles of a resin, an optional colorant, a first crystalline polymeric wax and a second crystalline polymeric wax, where the first crystalline polymeric wax is a crystalline polyethylene wax, the second crystalline polymeric wax is selected from aliphatic polar amide functionalized waxes, carboxylic acid-terminated polyethylene waxes, aliphatic waxes consisting of esters of hydroxylated unsaturated fatty acids, high acid waxes, and mixtures thereof, and the tone r particles are prepared by an emulsion aggregation process.

公开(公告)号：CA2510522C

公开(公告)日：2008-09-02

申请号：CA2510522

申请日：2005-06-22

Applicant: XEROX CORP

Inventor： SANDERS DAVID J ,  AGUR ENNO E ,  LIU CHU-HENG ,  VANBESIEN DARYL W ,  MOFFAT KAREN A

IPC: G03G9/08 ,  G03G9/087

Abstract: A toner including particles of a resin, an optional colorant, and a crystalline wax, where the crystalline wax is selected from aliphatic polar amide functionalized waxes, carboxylic acid-terminated polyethylene waxes, aliphatic waxes consisting of esters of hydroxylated unsaturated fatty acids, high acid waxes, and mixtures thereof, is prepared by an emulsion aggregation process.