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    • 5. 发明专利
    • Resin composition for nonmagnetic one-component electrostatic charge developing toner
    • 非组分单组分静电电荷开发助剂的树脂组合物
    • JP2008122510A
    • 2008-05-29
    • JP2006303890
    • 2006-11-09
    • Dainippon Ink & Chem Inc大日本インキ化学工業株式会社
    • SHIMANE YOSHINORINAKAJIMA MASAMIKIMURA MASAMITSU
    • G03G9/087G03G9/08
    • PROBLEM TO BE SOLVED: To provide a resin composition for nonmagnetic one-component electrostatic charge image developing toner capable of favorably obtaining an electrophotographic toner for a heat roll fixing system which substantially avoids hot offset, excels in low-temperature fixability, stably takes charge, and excels in development durability.
      SOLUTION: The resin composition for nonmagnetic one-component electrostatic charge developing toner comprises a polyester resin (R) obtained by polycondensing rosin (a), a dihydric alcohol (b1) and a dibasic acid (c1) and having a number average molecular weight (Mn) of 1,000-4,000 and a weight average molecular weight (Mw) to Mn ratio (Mw/Mn) of ≤3.5, and a polyester resin (S) obtained by polycondensing a polyvalent epoxy compound having an average of ≥5 epoxy groups (d), a polyhydric alcohol (b2) and a polybasic acid (c2) and having an Mn of ≥3,000 and an Mw to Mn ratio (Mw/Mn) of ≥10.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种能够有利地获得用于热辊定影系统的电子照相调色剂的非磁性单组分静电电荷显影调色剂的树脂组合物,其基本上避免热偏移,低温定影性优异,稳定 负责,开发耐用性好。 解决方案:用于非磁性单组分静电荷显影调色剂的树脂组合物包括通过将松香(a),二元醇(b1)和二元酸(c1)缩合得到并具有数均分子量的聚酯树脂(R) 分子量(Mn)为1,000-4,000,重均分子量(Mw)与Mn之比(Mw / Mn)≤3.5的聚酯树脂(S)和平均≥5的多价环氧化合物 环氧基(d),多元醇(b2)和多元酸(c2),Mn为≥3000,Mw / Mn比(Mw / Mn)≥10。 版权所有(C)2008,JPO&INPIT
    • 10. 发明专利
    • Method for producing heat storage material microcapsule, and heat storage material microcapsule
    • 生产储热材料微生物的方法和储热材料微生物
    • JP2008106164A
    • 2008-05-08
    • JP2006290701
    • 2006-10-26
    • Dainippon Ink & Chem IncNissan Motor Co Ltd大日本インキ化学工業株式会社日産自動車株式会社
    • MITANI TAKATOSHIMATSUDA SHINJIOKADA KATSUHIKOIWAMURA GORO
    • C09K5/06B01J13/04F28D20/00
    • Y02E60/142
    • PROBLEM TO BE SOLVED: To provide a method for producing heat storage material microcapsules stable even if subjected to long-term thermal history and/or shearing stress attributable to pump or the like, with no need of using any expensive apparatuses such as a hermetic pressurized vessel even if using a high-melting heat storage material, and to provide the heat storage material microcapsules thus produced. SOLUTION: The method producing the heat storage material microcapsules comprises the following process. An organic solvent solution where a binder having two or more functional groups and an aliphatic hydrocarbon-based heat storage material are dissolved in an organic solvent at a temperature lower than the melting point of the heat storage material is cooled to a temperature lower than the deposition temperature of a mixture of the binder and the heat storage material to deposit particles comprising the binder and the heat storage material, and the functional groups in the binder and a curing agent are made to react with each other. In the above method, the organic solvent to be used is a mixture of an organic solvent having respective solubilities to the binder and the heat storage material in the temperature range lower than the melting point of the heat storage material of 100 g or more and another organic solvent having the solubilities of 10 g or less. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种制造蓄热材料微胶囊的方法,即使经受长时间的热历史和/或归因于泵等的剪切应力,也不需要使用昂贵的装置,例如 密封的加压容器即使使用高熔点储热材料,并且提供如此制备的储热材料微胶囊。 解决方案:制备储热材料微胶囊的方法包括以下过程。 将具有两个以上官能团的粘合剂和脂肪族烃类蓄热材料的有机溶剂溶液在低于蓄热材料的熔点的温度下溶解在有机溶剂中的冷却至比沉积物低的温度 粘合剂和储热材料的混合物的温度使包含粘合剂和储热材料的颗粒和粘合剂中的官能团和固化剂彼此反应。 在上述方法中,所使用的有机溶剂是在低于储热材料的熔点的温度范围为100g以上的粘合剂和储热材料的溶解度有机溶剂的混合物,另一种 溶解度为10g以下的有机溶剂。 版权所有(C)2008,JPO&INPIT