BRPI0704484A2 - toners de poliéster com agregação em emulsão - Google Patents

toners de poliéster com agregação em emulsão

Info

Publication number
BRPI0704484A2
BRPI0704484A2 BRPI0704484-4A BRPI0704484A BRPI0704484A2 BR PI0704484 A2 BRPI0704484 A2 BR PI0704484A2 BR PI0704484 A BRPI0704484 A BR PI0704484A BR PI0704484 A2 BRPI0704484 A2 BR PI0704484A2
Authority
BR
Brazil
Prior art keywords
koh
emulsion
toner
generating
resin
Prior art date
Application number
BRPI0704484-4A
Other languages
English (en)
Inventor
Guerino G Sacripante
Allan K Chen
Original Assignee
Xerox Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xerox Corp filed Critical Xerox Corp
Publication of BRPI0704484A2 publication Critical patent/BRPI0704484A2/pt
Publication of BRPI0704484B1 publication Critical patent/BRPI0704484B1/pt

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/0802—Preparation methods
    • G03G9/0804—Preparation methods whereby the components are brought together in a liquid dispersing medium
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/087—Binders for toner particles
    • G03G9/08742—Binders for toner particles comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • G03G9/08755—Polyesters
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/087—Binders for toner particles
    • G03G9/08784—Macromolecular material not specially provided for in a single one of groups G03G9/08702 - G03G9/08775
    • G03G9/08795—Macromolecular material not specially provided for in a single one of groups G03G9/08702 - G03G9/08775 characterised by their chemical properties, e.g. acidity, molecular weight, sensitivity to reactants
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/087—Binders for toner particles
    • G03G9/08784—Macromolecular material not specially provided for in a single one of groups G03G9/08702 - G03G9/08775
    • G03G9/08797—Macromolecular material not specially provided for in a single one of groups G03G9/08702 - G03G9/08775 characterised by their physical properties, e.g. viscosity, solubility, melting temperature, softening temperature, glass transition temperature

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Developing Agents For Electrophotography (AREA)

Abstract

TONERS DE POLIéSTER COM AGREGAçãO EM EMULSãO. A presente invenção refere-se a um toner com agregação em emulsão, incluindo uma resina amorfa e uma resina cristalina, em que o toner tem um índice de acidez entre cerca de 16 mg/eq de KOH e cerca de 40 mg/eq de KOH e uma razão de sensibilidade à umidade relativa entre cerca de 1 e cerca de 2, e em que a resina cristalina tem um ponto de fusão de pelo menos cerca de 60°C. O processo para formar partículas inclui gerar uma emulsão de uma resina poliéster que tem um índice de acidez entre cerca de 16 mg/eq de KOH e cerca de 40 mg/eq de KOH, e gerar partículas agregadas a partir da emulsão. Resultam uma maior capacidade de manutenção da carga elétrica e resistividade do toner, gerando desta forma alta qualidade e alto brilho das cópias, e proporcionando carregamento elétrico xerográfico estável em todas as condições ambientais.
BRPI0704484-4A 2006-11-06 2007-11-06 Processos para formar partículas BRPI0704484B1 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/556,926 US7858285B2 (en) 2006-11-06 2006-11-06 Emulsion aggregation polyester toners
US11/556,926 2006-11-06

Publications (2)

Publication Number Publication Date
BRPI0704484A2 true BRPI0704484A2 (pt) 2009-07-07
BRPI0704484B1 BRPI0704484B1 (pt) 2019-08-06

Family

ID=39048047

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0704484-4A BRPI0704484B1 (pt) 2006-11-06 2007-11-06 Processos para formar partículas

Country Status (8)

Country Link
US (1) US7858285B2 (pt)
EP (1) EP1918781B1 (pt)
JP (1) JP5221932B2 (pt)
CN (1) CN101178551B (pt)
BR (1) BRPI0704484B1 (pt)
CA (1) CA2608804C (pt)
DE (1) DE602007014164D1 (pt)
MX (1) MX2007013720A (pt)

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Also Published As

Publication number Publication date
EP1918781B1 (en) 2011-04-27
JP5221932B2 (ja) 2013-06-26
BRPI0704484B1 (pt) 2019-08-06
CN101178551B (zh) 2013-06-19
EP1918781A1 (en) 2008-05-07
CA2608804A1 (en) 2008-05-06
US20080107989A1 (en) 2008-05-08
US7858285B2 (en) 2010-12-28
JP2008116957A (ja) 2008-05-22
MX2007013720A (es) 2009-02-19
CA2608804C (en) 2013-12-10
CN101178551A (zh) 2008-05-14
DE602007014164D1 (de) 2011-06-09

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