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    • 1. 发明授权
    • Production of toner through polymerization
    • 通过聚合生产调色剂
    • US4789617A
    • 1988-12-06
    • US947094
    • 1986-12-29
    • Kozo AraharaToshikazu OhnishiHiroshi Fukumoto
    • Kozo AraharaToshikazu OhnishiHiroshi Fukumoto
    • G03G9/08G03G9/087C08F2/00
    • G03G9/08702G03G9/0806G03G9/08775G03G9/08779Y02P20/582
    • A toner suitable for developing electrostatic images is produced through a process comprising: dispersing a monomer composition comprising at least a polymerizable monomer and a colorant in an aqueous medium heated at a temperature higher than a polymerization temperature, thereby to form particles of the monomer composition; adjusting the aqueous medium to the polymerization temperature; and adding a substantially water-insoluble polymerization initiator to the aqueous medium containing the particles of the monomer composition dispersed therein and adjusted to the polymerization temperature, thereby to cause the polymerization of the polymerizable monomer. According to this process, a toner containing a large amount of a low-softening point compound and having good fixability at low pressure and/or low temperature can be produced while retaining good anti-blocking characteristic and fluidity.
    • 通过以下方法生产适于显影静电图像的调色剂,其包括:将包含至少可聚合单体和着色剂的单体组合物分散在加热到高于聚合温度的水介质中,从而形成单体组合物的颗粒; 将水介质调节至聚合温度; 并将基本上不溶于水的聚合引发剂加入到含有分散在其中的单体组合物的颗粒的水性介质中,并调节至聚合温度,从而引发可聚合单体的聚合。 根据该方法,可以制造含有大量低软化点化合物并且在低压和/或低温下具有良好定影性的调色剂,同时保持良好的抗粘连特性和流动性。
    • 10. 发明授权
    • Photocurable ink jet recording ink composition and ink jet recording method
    • 光固化喷墨记录油墨组合物和喷墨记录方法
    • US09090787B2
    • 2015-07-28
    • US13611095
    • 2012-09-12
    • Toshiyuki YodaHiroshi Fukumoto
    • Toshiyuki YodaHiroshi Fukumoto
    • B41J2/01C09D11/101B41J2/21C09D11/30
    • C09D11/30B41J2/2107B41J11/00C09D11/101C09D11/107
    • Provided is a photocurable ink jet recording ink composition having a low viscosity and excellent curing property and photopolymerization initiator solubility. The photocurable ink jet recording ink composition includes a polymerizable compound and a photopolymerization initiator. The polymerizable compound includes vinyl ether group-containing (meth)acrylic esters represented by Formula (I) in an amount of 20% by mass or more based on the total mass of the ink composition. The photopolymerization initiator includes a bisacylphosphine oxide photopolymerization initiator in an amount of 5% by mass or more based on the total mass of the ink composition and a thioxanthone photopolymerization initiator. The content ratio of the bisacylphosphine oxide photopolymerization initiator to the thioxanthone photopolymerization initiator is from 3:1 to 5:4.
    • 提供具有低粘度和优异的固化性能和光聚合引发剂溶解度的光固化型喷墨记录油墨组合物。 光固化喷墨记录油墨组合物包含聚合性化合物和光聚合引发剂。 可聚合化合物包括基于油墨组合物的总质量为20质量%以上的含有乙烯基醚基的式(I)所示的(甲基)丙烯酸酯。 光聚合引发剂包括基于油墨组合物和噻吨酮光聚合引发剂的总质量为5质量%以上的双酰基氧化膦光聚合引发剂。 双酰基氧化膦光聚合引发剂与噻吨酮光聚合引发剂的含量比为3:1至5:4。