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公开(公告)号：US09005868B2
公开(公告)日：2015-04-14
申请号：US13996292
申请日：2011-12-09
申请人： Shoichi Murata , Takayuki Ikenaga , Takashi Okuno , Hiroshi Mizuhata , Keishi Yokota , Koji Shimokusa , Koji Kameyama
发明人： Shoichi Murata , Takayuki Ikenaga , Takashi Okuno , Hiroshi Mizuhata , Keishi Yokota , Koji Shimokusa , Koji Kameyama
CPC分类号： G03G9/093 , G03G9/0804 , G03G9/08755 , G03G9/08795 , G03G9/08797 , G03G9/09328 , G03G9/09371 , G03G9/09392
摘要： The present invention relates to a process for producing a toner for electrophotography which includes the step of fusing aggregated particles containing resin particles (A) and releasing agent particles in an aqueous mixed solution containing the aggregated particles and an anionic surfactant having a polyalkylene glycol moiety with an average molar number of addition of an alkylene oxide having 2 to 3 carbon atoms of from 5 to 100 after and/or while adjusting a pH value of the aqueous mixed solution to 2.0 to 6.0 as measured at 25° C., and a toner for electrophotography obtained by the process.
摘要翻译： 本发明涉及一种电子照相用调色剂的制造方法，该方法包括将含有树脂颗粒（A）和脱模剂颗粒的凝集颗粒与含有聚亚烷基二醇部分的含水混合溶液和含有聚亚烷基二醇部分的阴离子表面活性剂 将在25℃下测定的水性混合溶液的pH值调节至2.0〜6.0后，和/或在25℃下测定时，将碳原子数为2〜3的烯化氧的平均加成摩尔数为5〜100， 用于通过该方法获得的电子照相。
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公开(公告)号：US20130295499A1
公开(公告)日：2013-11-07
申请号：US13996292
申请日：2011-12-09
申请人： Shoichi Murata , Takayuki Ikenaga , Takashi Okuno , Hiroshi Mizuhata , Keishi Yokota , Koji Shimokusa , Koji Kameyama
发明人： Shoichi Murata , Takayuki Ikenaga , Takashi Okuno , Hiroshi Mizuhata , Keishi Yokota , Koji Shimokusa , Koji Kameyama
IPC分类号： G03G9/093
CPC分类号： G03G9/093 , G03G9/0804 , G03G9/08755 , G03G9/08795 , G03G9/08797 , G03G9/09328 , G03G9/09371 , G03G9/09392
摘要： The present invention relates to a process for producing a toner for electrophotography which includes the step of fusing aggregated particles containing resin particles (A) and releasing agent particles in an aqueous mixed solution containing the aggregated particles and an anionic surfactant having a polyalkylene glycol moiety with an average molar number of addition of an alkylene oxide having 2 to 3 carbon atoms of from 5 to 100 after and/or while adjusting a pH value of the aqueous mixed solution to 2.0 to 6.0 as measured at 25° C., and a toner for electrophotography obtained by the process.
摘要翻译： 本发明涉及一种电子照相用调色剂的制造方法，该方法包括将含有树脂颗粒（A）和脱模剂颗粒的凝集颗粒与含有聚亚烷基二醇部分的含水混合溶液和含有聚亚烷基二醇部分的阴离子表面活性剂 将在25℃下测定的水性混合溶液的pH值调节至2.0〜6.0后，和/或在25℃下测定时，将碳原子数为2〜3的烯化氧的平均加成摩尔数为5〜100， 用于通过该方法获得的电子照相。
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公开(公告)号：US20130011777A1
公开(公告)日：2013-01-10
申请号：US13537451
申请日：2012-06-29
申请人： Takayasu Aoki , Takafumi Hara , Tsuyoshi Itou , Masahiro Ikuta , Motonari Udo , Koji Shimokusa , Hiroshi Mizuhata
发明人： Takayasu Aoki , Takafumi Hara , Tsuyoshi Itou , Masahiro Ikuta , Motonari Udo , Koji Shimokusa , Hiroshi Mizuhata
CPC分类号： G03G9/0928 , G03G9/08755 , G03G9/08793 , G03G9/0926
摘要： Disclosed is a process for production of a decolorable toner, including: aggregating dispersed fine particles of a color material comprising at least a color-forming compound, a color-developing agent and a decoloring agent with dispersed fine particles comprising at least a binder resin comprising a polyester resin to form aggregates in an aqueous medium, adding a reactive polymer having an oxazoline group in to the aqueous medium, and fusing the aggregates in the aqueous medium. As a result, it becomes possible to produce a decolorable toner which suppresses the generation of fine powder due to the release of fine particles of an erasable color material from the toner.
摘要翻译： 本发明公开了一种无色调色剂的制造方法，其特征在于，包括使至少含有成色化合物，显色剂和脱色剂的着色材料的分散微粒聚集到至少包含粘合剂树脂的分散细小颗粒中，所述粘合剂树脂包括 在水性介质中形成聚集体的聚酯树脂，在水性介质中加入具有恶唑啉基团的反应性聚合物，并将聚集体熔融在水性介质中。 结果，可以生产一种不会调色的调色剂，该调色剂抑制由于可从调色剂中释放出可擦除色料的细颗粒而产生细粉。
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公开(公告)号：US08940468B2
公开(公告)日：2015-01-27
申请号：US13537451
申请日：2012-06-29
申请人： Takayasu Aoki , Takafumi Hara , Tsuyoshi Itou , Masahiro Ikuta , Motonari Udo , Koji Shimokusa , Hiroshi Mizuhata
发明人： Takayasu Aoki , Takafumi Hara , Tsuyoshi Itou , Masahiro Ikuta , Motonari Udo , Koji Shimokusa , Hiroshi Mizuhata
CPC分类号： G03G9/0928 , G03G9/08755 , G03G9/08793 , G03G9/0926
摘要： Disclosed is a process for production of a decolorable toner, including: aggregating dispersed fine particles of a color material comprising at least a color-forming compound, a color-developing agent and a decoloring agent with dispersed fine particles comprising at least a binder resin comprising a polyester resin to form aggregates in an aqueous medium, adding a reactive polymer having an oxazoline group in to the aqueous medium, and fusing the aggregates in the aqueous medium. As a result, it becomes possible to produce a decolorable toner which suppresses the generation of fine powder due to the release of fine particles of an erasable color material from the toner.
摘要翻译： 本发明公开了一种无色调色剂的制造方法，其特征在于，包括使至少含有成色化合物，显色剂和脱色剂的着色材料的分散微粒聚集到至少包含粘合剂树脂的分散细小颗粒中，所述粘合剂树脂包含 在水性介质中形成聚集体的聚酯树脂，在水性介质中加入具有恶唑啉基团的反应性聚合物，并将聚集体熔合在水性介质中。 结果，可以生产一种不会调色的调色剂，该调色剂抑制由于可从调色剂中释放出可擦除色料的细颗粒而产生细粉。
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公开(公告)号：US08632936B2
公开(公告)日：2014-01-21
申请号：US13516990
申请日：2010-12-17
申请人： Shoichi Murata , Eiji Shirai , Hiroshi Mizuhata , Manabu Suzuki
发明人： Shoichi Murata , Eiji Shirai , Hiroshi Mizuhata , Manabu Suzuki
IPC分类号： G03G9/087
CPC分类号： G03G9/0804 , G03G9/08755 , G03G9/08797 , G03G9/09733
摘要： A method for producing an electrophotographic toner, including steps of: (1) preparing a thermally treated resin particle dispersion by retaining, for one hour or longer at a temperature satisfying the formula: (melting point of the crystalline polyester (a1)−35) (° C.)
摘要翻译： 一种电子照相调色剂的制造方法，其特征在于，包括以下步骤：（1）通过在满足下式的结晶（结晶性聚酯（a1）-35的熔点）的温度下保持1小时以上制备热处理树脂颗粒分散液， （℃）
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公开(公告)号：US20110177445A1
公开(公告)日：2011-07-21
申请号：US13061912
申请日：2009-09-07
IPC分类号： G03G9/08
CPC分类号： G03G9/08797 , C08J3/05 , C08J3/07 , C08J2367/00 , G03G9/0804 , G03G9/08755
摘要： The present invention relates to a process for producing a dispersion of polyester particles which includes the step of emulsifying mixed polyester containing (1) an amorphous polyester containing a constitutional unit derived from a trivalent or higher-valent carboxylic acid in an amount of from 2.0 to 12.0 mol % on the basis of whole constitutional units of the whole amorphous polyester and (2) a crystalline polyester, in an aqueous medium in a single vessel, or the step of mixing the mixed polyester with an organic solvent and then adding the aqueous medium to the resulting mixture to emulsify the mixed polyester in a single vessel. The present invention also relates to a dispersion of polyester particles produced by the above production process, as well as a toner for electrophotography which is produced by subjecting the dispersion of the polyester particles to aggregation and coalescence and is excellent in both of a low-temperature fusing property and an anti-hot offset property, and a process for producing the toner.
摘要翻译： 本发明涉及一种聚酯粒子分散体的制造方法，其特征在于，包括将含有（1）含有来源于三价以上羧酸的结构单元的无定形聚酯的混合聚酯的工序 基于整个无定形聚酯的全部结构单元为12.0摩尔％，（2）结晶性聚酯，在单一容器中的水性介质中，或将混合聚酯与有机溶剂混合，然后添加水性介质 与所得混合物在单一容器中乳化混合的聚酯。 本发明还涉及通过上述制备方法制备的聚酯颗粒的分散体，以及通过使聚酯颗粒的分散体进行聚集和聚结而制备的电子照相用调色剂，并且在低温 熔融性和抗热粘合性，以及调色剂的制造方法。
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公开(公告)号：US08652746B2
公开(公告)日：2014-02-18
申请号：US13061912
申请日：2009-09-07
IPC分类号： G03G5/00
CPC分类号： G03G9/08797 , C08J3/05 , C08J3/07 , C08J2367/00 , G03G9/0804 , G03G9/08755
摘要： The present invention relates to a process for producing a dispersion of polyester particles which includes the step of emulsifying mixed polyester containing (1) an amorphous polyester containing a constitutional unit derived from a trivalent or higher-valent carboxylic acid in an amount of from 2.0 to 12.0 mol % on the basis of whole constitutional units of the whole amorphous polyester and (2) a crystalline polyester, in an aqueous medium in a single vessel, or the step of mixing the mixed polyester with an organic solvent and then adding the aqueous medium to the resulting mixture to emulsify the mixed polyester in a single vessel. The present invention also relates to a dispersion of polyester particles produced by the above production process, as well as a toner for electrophotography which is produced by subjecting the dispersion of the polyester particles to aggregation and coalescence and is excellent in both of a low-temperature fusing property and an anti-hot offset property, and a process for producing the toner.
摘要翻译： 本发明涉及一种聚酯粒子分散体的制造方法，其特征在于，包括将含有（1）含有来源于三价以上羧酸的结构单元的无定形聚酯的混合聚酯的工序 基于整个无定形聚酯的全部结构单元为12.0摩尔％，（2）结晶性聚酯，在单一容器中的水性介质中，或将混合聚酯与有机溶剂混合，然后添加水性介质 与所得混合物在单一容器中乳化混合的聚酯。 本发明还涉及通过上述制备方法制备的聚酯颗粒的分散体，以及通过使聚酯颗粒的分散体进行聚集和聚结而制备的电子照相用调色剂，并且在低温 熔融性和抗热粘合性，以及调色剂的制造方法。
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公开(公告)号：US08460847B2
公开(公告)日：2013-06-11
申请号：US12541483
申请日：2009-08-14
申请人： Eiji Shirai , Takashi Kubo , Hiroshi Mizuhata , Shoichi Murata
发明人： Eiji Shirai , Takashi Kubo , Hiroshi Mizuhata , Shoichi Murata
IPC分类号： G03G9/08
CPC分类号： G03G9/08755 , G03G9/0804 , G03G9/08795 , G03G9/08797 , G03G9/09328 , G03G9/09371
摘要： The present invention relates to a toner for electrophotography including a polyester obtained by subjecting a crystalline polyester-containing aqueous dispersion and a non-crystalline polyester-containing aqueous dispersion to aggregation and coalescence, as a resin binder, wherein the crystalline polyester is produced by polycondensing an alcohol component containing 70 mol % or more of an aliphatic diol having 2 to 8 carbon atoms with a carboxylic acid component containing 50 mol % or more of terephthalic acid. The toner is excellent in low-temperature fusing ability and pressure storage stability.
摘要翻译： 本发明涉及一种电子照相用调色剂，其包括通过使含结晶聚酯的水性分散体和含非结晶性聚酯的水分散体作为树脂粘合剂进行聚集和聚结而获得的聚酯，其中所述结晶聚酯通过缩聚 含有70摩尔％以上的碳原子数为2〜8的脂肪族二醇和含有50摩尔％以上对苯二甲酸的羧酸成分的醇成分。 该调色剂具有优异的低温融合能力和压力储存稳定性。
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公开(公告)号：US20100055595A1
公开(公告)日：2010-03-04
申请号：US12541483
申请日：2009-08-14
申请人： Eiji Shirai , Takashi Kubo , Hiroshi Mizuhata , Shoichi Murata
发明人： Eiji Shirai , Takashi Kubo , Hiroshi Mizuhata , Shoichi Murata
CPC分类号： G03G9/08755 , G03G9/0804 , G03G9/08795 , G03G9/08797 , G03G9/09328 , G03G9/09371
摘要： The present invention relates to a toner for electrophotography including a polyester obtained by subjecting a crystalline polyester-containing aqueous dispersion and a non-crystalline polyester-containing aqueous dispersion to aggregation and coalescence, as a resin binder, wherein the crystalline polyester is produced by polycondensing an alcohol component containing 70 mol % or more of an aliphatic diol having 2 to 8 carbon atoms with a carboxylic acid component containing 50 mol % or more of terephthalic acid. The toner is excellent in low-temperature fusing ability and pressure storage stability.
摘要翻译： 本发明涉及一种电子照相用调色剂，其包括通过使含结晶聚酯的水性分散体和含非结晶性聚酯的水分散体作为树脂粘合剂进行聚集和聚结而获得的聚酯，其中所述结晶聚酯通过缩聚 含有70摩尔％以上的碳原子数为2〜8的脂肪族二醇和含有50摩尔％以上对苯二甲酸的羧酸成分的醇成分。 该调色剂具有优异的低温融合能力和压力储存稳定性。
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公开(公告)号：US20120258392A1
公开(公告)日：2012-10-11
申请号：US13516990
申请日：2010-12-17
申请人： Shoichi Murata , Eiji Shirai , Hiroshi Mizuhata , Manabu Suzuki
发明人： Shoichi Murata , Eiji Shirai , Hiroshi Mizuhata , Manabu Suzuki
IPC分类号： G03G9/08
CPC分类号： G03G9/0804 , G03G9/08755 , G03G9/08797 , G03G9/09733
摘要： A method for producing an electrophotographic toner, including (1) a step of preparing a thermally treated resin particle dispersion by retaining, for one hour or longer at a temperature satisfying a specific formula, a dispersion of resin particles (A) having a volume median particle size of 0.02 μm to 2 μm and containing a resin containing a crystalline polyester (a1) in an amount of 1 to 50 wt % and an amorphous polyester (b1); (2) a step of preparing an aggregated particle dispersion by aggregating thermally treated resin particles contained in the thermally treated resin particle dispersion prepared through step 1; (2a) a step of preparing resin-fine-particle-attached aggregated particles by adding, to the aggregated particle dispersion prepared through step 2, a dispersion of resin fine particles (B) containing an amorphous polyester (b2) in an amount of 70 wt % or more; and (3) a step of unifying the resin-fine-particle-attached aggregated particles prepared through step 2a.
摘要翻译： 一种电子照相调色剂的制造方法，其特征在于，包括：（1）通过在满足特定式的温度下保持1小时以上制备热处理树脂颗粒分散液的步骤，具有体积中值 粒径为0.02〜2μm，含有含有1〜50重量％的结晶性聚酯（a1）的树脂和无定形聚酯（b1）; （2）通过聚集通过步骤1制备的热处理树脂颗粒分散体中包含的热处理树脂颗粒来制备凝聚颗粒分散体的步骤; （2a）通过向通过步骤2制备的凝集颗粒分散体中加入含有非晶形聚酯（b2）的树脂细颗粒（B）的分散体70，制备树脂 - 细颗粒附着凝集颗粒的步骤 重量％以上; 和（3）将通过步骤2a制备的树脂 - 细颗粒附着的凝集粒子统一的工序。
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