公开(公告)号：DE602007012815D1

公开(公告)日：2011-04-14

申请号：DE602007012815

申请日：2007-12-07

Applicant: XEROX CORP

Inventor： FARRUGIA VALERIE M

IPC: C08G63/91 ,  G03G9/08 ,  G03G9/087

公开(公告)号：CA2585680C

公开(公告)日：2011-04-05

申请号：CA2585680

申请日：2007-04-19

Applicant: XEROX CORP

Inventor： FARRUGIA VALERIE M ,  PATEL RAJ D ,  HAWKINS MICHAEL S

IPC: G03G9/08 ,  G03G9/093 ,  G03G9/113 ,  G03G13/20

Abstract: A toner composition includes toner particles including a polymeric resin, a colorant, a wax, and an optional coagulant, and a coagulant applied as a surface additive to a surface of the toner particles to alter a triboelectric charge of the toner particles.

公开(公告)号：CA2560604C

公开(公告)日：2010-07-20

申请号：CA2560604

申请日：2006-09-22

Applicant: XEROX CORP

Inventor： NOSELLA KIMBERLY D ,  SACRIPANTE GUERINO G ,  CHEN ALLAN K ,  FARRUGIA VALERIE M ,  ZHOU KE

IPC: G03G9/08 ,  G03G9/087

Abstract: A toner of a sulfonated polyester resin and at least one colorant is made to contain from about 0.01% by weight to about 3% by weight of dry toner in total of lithium, sodium, zinc and calcium. The sulfonated polyester resin may be an alkali metal sulfonated polyester resin, wherein the alkali metal may be sodium and/or lithium. The toner may be formed in an emulsion aggregation process in which an alkali (II) metal salt such as a zinc salt and/or a calcium salt is used as an aggregating agent.

公开(公告)号：CA2541055C

公开(公告)日：2009-12-22

申请号：CA2541055

申请日：2006-03-24

Applicant: XEROX CORP

Inventor： NOSELLA KIMBERLY D ,  PATEL RAJ D ,  FARRUGIA VALERIE M ,  CHEN ALLAN K ,  NG T HWEE

IPC: G03G9/08

Abstract: A method of making particles suitable for use as toners includes forming a mixture of sulfonated polyester resin, a colorant dispersion and optionally a wax dispersion, homogenizing the mixture, adding a coagulant to the mixture to aggregate the mixture to form aggregated particles, and coalescing the aggregated particles to form coalesced particles. In the method, when a predetermined average particle size is achieved during th e aggregation and/or coalescing step, a complexing agent that complexes with ions of the coagulant is added in an amount effective to substantially halt any further particle growth. Th e complexing agent is believed to halt further growth by complexing with free coagulant ions still in the solution.

公开(公告)号：CA2588312A1

公开(公告)日：2007-11-19

申请号：CA2588312

申请日：2007-05-11

Applicant: XEROX CORP

Inventor： KAZMAIER PETER M ,  YANG SAN-MING ,  TAM MAN CHUNG ,  FARRUGIA VALERIE M ,  CHOPRA NAVEEN

IPC: G02F1/167

Abstract: An electrophoretic display medium includes one or more set of colored particles in a dielectric fluid, and wherein at least one of the one or more set of particles are particles having thereon at least one polyelectrolyte coating. The display medium is included in an electrophoretic display device by including the medium in a multiplicity of individual reservoirs of a display layer or layers that is located between conductive substrates.

公开(公告)号：CA2585680A1

公开(公告)日：2007-10-26

申请号：CA2585680

申请日：2007-04-19

Applicant: XEROX CORP

Inventor： HAWKINS MICHAEL S ,  PATEL RAJ D ,  FARRUGIA VALERIE M

IPC: G03G9/08 ,  G03G9/093 ,  G03G9/113 ,  G03G13/20

Abstract: A toner composition includes toner particles including a polymeric resin, a colorant, a wax, and an optional coagulant, and a coagulant applied as a surface additive to a surface of the toner particles to alter a triboelectric charge of the toner particles.

公开(公告)号：BRPI0604005A

公开(公告)日：2007-08-21

申请号：BRPI0604005

申请日：2006-10-02

Applicant: XEROX CORP

Inventor： NOSELLA KIMBERLY D ,  SACRIPANTE GUERINO G ,  CHEN ALLAN K ,  FARRUGIA VALERIE M ,  ZHOU KE

IPC: G03G9/087 ,  G03G15/14

Abstract: A toner of a sulfonated polyester resin and at least one colorant is made to contain from about 0.01 % by weight to about 3% by weight of dry toner in total of lithium, sodium, zinc and calcium. The sulfonated polyester resin may be an alkali metal sulfonated polyester resin, wherein the alkali metal may be sodium and/or lithium. The toner may be formed in an emulsion aggregation process in which an alkali (II) metal salt such as a zinc salt and/or a calcium salt is used as an aggregating agent.

公开(公告)号：BRPI0602437A

公开(公告)日：2007-02-21

申请号：BRPI0602437

申请日：2006-06-23

Applicant: XEROX CORP

Inventor： VEREGIN RICHARD P N ,  HAWKINS MICHAEL S ,  SKOROKHOD VLADISLAV ,  FARRUGIA VALERIE M

IPC: G03G9/08

Abstract: A toner having a crystalline or semi-crystalline polyester resin, an amorphous resin and a colorant. The toner preferably exhibits a resistivity of at least 1×10 11 ohm-cm. A developer may be produced including the toner and optionally a carrier. If a carrier is included, the carrier preferably exhibits a resistivity of greater than 1×10 7 ohm-cm. An electrophotographic machine includes the toner exhibiting high resistivity.

公开(公告)号：MXPA06007035A

公开(公告)日：2007-02-08

申请号：MXPA06007035

申请日：2006-06-19

Applicant: XEROX CORP

Inventor： SKOROKHOD VLADISLAV ,  VEREGIN RICHARD P N ,  HAWKINS MICHAEL S ,  FARRUGIA VALERIE M

IPC: G03G9/00

Abstract: Un pigmento organico que tiene una resina de poliester cristalina o semicristalina, una resina amorfa y un colorante. El pigmento organico preferiblemente exhibe una resistividad de al menos 1x1011 ohm-cm. Puede ser producido un revelador que incluye un pigmento organico y opcionalmente un portador. Si es incluido un portador, el portador preferiblemente exhibe una resistividad no mayor a 1x107 ohm-cm. Una maquina electrofotografica incluye al pigmento organico que exhibe alta resistividad.

公开(公告)号：CA2541055A1

公开(公告)日：2006-09-30

申请号：CA2541055

申请日：2006-03-24

Applicant: XEROX CORP

Inventor： PATEL RAJ D ,  NG T HWEE ,  CHEN ALLAN K ,  NOSELLA KIMBERLY D ,  FARRUGIA VALERIE M

IPC: G03G9/08

Abstract: A method of making particles suitable for use as toners includes forming a mixture of sulfonated polyester resin, a colorant dispersion and optionally a wax dispersion, homogenizing the mixture, adding a coagulant to the mixture to aggregate the mixture to form aggregated particles, and coalescing the aggregated particles to form coalesced particles. In the method, when a predetermined average particle size is achieved during th e aggregation and/or coalescing step, a complexing agent that complexes with ions of the coagulant is added in an amount effective to substantially halt any further particle growth. Th e complexing agent is believed to halt further growth by complexing with free coagulant ions still in the solution.