Method for producing binder resin, particulate resin dispersion, electrostatic image development toner, electrostatic image developer, and image forming method

A technology of electrostatic image development and binder resin, which is applied in the direction of developer, electric recording process applying charge pattern, electric recording process applying electric charge pattern, etc. High fluidity, contamination suppression effect

Inactive Publication Date: 2007-06-13
FUJIFILM BUSINESS INNOVATION CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Also, very tight process design and control are required, which leads to reduced productivity

Method used

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  • Method for producing binder resin, particulate resin dispersion, electrostatic image development toner, electrostatic image developer, and image forming method
  • Method for producing binder resin, particulate resin dispersion, electrostatic image development toner, electrostatic image developer, and image forming method
  • Method for producing binder resin, particulate resin dispersion, electrostatic image development toner, electrostatic image developer, and image forming method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0344] The present invention will be further described in the following examples, but the present invention is not limited thereto.

[0345] 1) Examples of bulk polymerization

Embodiment A-1-1

[0347] 1,4-Cyclohexanedicarboxylic acid: 17.5 parts by weight

[0348] Bisphenol A-ethylene oxide 2 mol adduct: 31.0 parts by weight

[0349] N-dodecylbenzene sulfonic acid: 0.6 parts by weight (1 mol% relative to the total monomer)

[0350] Branched dodecyl benzene sulfonic acid (Tayca Power B120, manufactured by Tayca): 0.6 parts by weight (1 mol% relative to the total amount of monomers)

[0351] The above-mentioned materials are mixed, and then put into a 200-ml reactor equipped with a stirrer, and then the monomer is subjected to polycondensation reaction therein to obtain a uniform and transparent non-crystalline polyester resin.

[0352] Weight average molecular weight measured by GPC: 12,000

[0353] Glass transition temperature (start): 55℃

[0354]Put the obtained resin into a three-necked flask equipped with a stirrer and a cooling tube, and then gradually add 1N NaOH aqueous solution with stirring while maintaining 95°C. When the total amount of the NaOH aqueous soluti...

Embodiment A-1-2

[0356] 1,4-Cyclohexanedicarboxylic acid: 17.5 parts by weight

[0357] Bisphenol A-ethylene oxide 2 mol adduct: 31.0 parts by weight

[0358] N-dodecylbenzene sulfonic acid: 0.06 parts by weight (relative to the total amount of monomers is 0.1 mol%)

[0359] Branched dodecylbenzene sulfonic acid (Tayca Power B120, manufactured by Tayca): 0.06 parts by weight (relative to the total amount of monomers, 0.1 mol%)

[0360] The above materials were mixed, and then put into a 200 ml reactor equipped with a stirrer, and then subjected to a polycondensation reaction at 120°C for 24 hours to obtain a uniform and transparent amorphous polyester resin.

[0361] Weight average molecular weight measured by GPC: 14,500

[0362] Glass transition temperature (start): 55.5℃

[0363] Then, a resin particle dispersion with a median diameter of 420 nm was prepared in the same manner as in Example A-1-1.

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Abstract

A method for producing a binder resin comprises polycondensing a polycondensable monomer by using a polycondensation catalyst that comprises: at least one of compounds of formula (I) or (II); and at least one of compounds represented of formula (III) or (IV), wherein weight ratio of total amount of the compounds of formula (I) or (II) to total amount of the compounds of formula (III) or (IV) is from 5:95 to 95:5, in (I) R1 represent C8-C20 straight chain alkyl, in (III) R2 represent univalence organic group, the number n of replace groupp R2 is integer from 0 to 4; in (II) R3 represent C8-C20 straight chain alkyl, in (III) R4 represent C8-C20 branch alkyl, R5 represent univalence organic group, the number m of replace groupp R5 is integer from 0 to 4, in (IV) R6 represent C8-C20 branch alkyl.

Description

Technical field [0001] The present invention relates to a binder resin suitable for developing an electrostatic latent image formed by an electrophotographic method or an electrostatic recording method using a developer. The present invention also relates to a resin particle dispersion liquid manufactured from the binder resin and an electrostatic image toner manufactured from the dispersion liquid. The present invention further relates to an electrostatic image developer containing the electrostatic image developing toner and an image forming method. Background technique [0002] In recent years, with the rapid popularization of digital technology, users in ordinary homes, offices, and publishing fields have been demanding to improve image output quality such as printed images and copied images. On the other hand, in order to realize the sustainable development of society, the demand for reducing and saving the energy required for corporate activities and products that are the r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/12C08G63/82C09J167/00G03G9/087G03G13/00
Inventor 佐佐木有希平冈智目罗史明松冈弘高松村保雄
Owner FUJIFILM BUSINESS INNOVATION CORP
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