会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Process for charging toner compositions
    • 调色剂组合物的加工方法
    • US4378420A
    • 1983-03-29
    • US298983
    • 1981-09-03
    • Robert J. GruberSteven B. BolteRichard F. Koehler, Jr.Edward W. Connors
    • Robert J. GruberSteven B. BolteRichard F. Koehler, Jr.Edward W. Connors
    • G03G9/10G03G9/087G03G9/09G03G9/097G03G9/113G03G13/08G03G15/09G03G21/00
    • G03G13/08G03G9/1138
    • This invention is generally directed to an improved process for rapidly charging uncharged replenishment toner particles to a positive polarity, and the use of such particles for developing images in an electrostatographic imaging system, which process comprises (1) adding uncharged replenishment toner particles to a charged developer composition comprised of carrier particles and toner particles, the carrier particles consisting of a core containing a polymer coating thereon having incorporated therein an additive having a pKa of less than 5, said additive being selected from the group consisting of perfluorooctanoic acid, 2,4-dinitrophenol, 2,4,6-trinitrophenol, and naphthalene sulfonic acids, (2) contacting the charged developing composition containing said carrier particles with the uncharged toner particles, wherein positive charges are transferred to the uncharged toner particles within a mixing period of from about 5 seconds to about 5 minutes, thereby resulting in substantially the same level of positive charge intensity for said uncharged toner particles as the charge intensity of toner particles in the charged developer composition, said charge intensity ranging from about 0.1 femtocoulombs per micron, to about 3 femtocoulombs per micron of toner particles.
    • 本发明一般涉及用于将不带电补充调色剂颗粒快速装入正极性的改进方法,以及使用这种颗粒在静电图像成像系统中显影图像的方法,该方法包括(1)将不带电补充调色剂颗粒加入到带电 由载体颗粒和调色剂颗粒组成的显影剂组合物,载体颗粒由其上包含聚合物涂层的核心组成,其中掺入了其中pKa小于5的添加剂,所述添加剂选自全氟辛酸,2,4 二硝基苯酚,2,4,6-三硝基苯酚和萘磺酸,(2)使含有载体颗粒的带电显影组合物与不带电荷的调色剂颗粒接触,其中将正电荷转移到不带电调色剂颗粒的混合期间 约5秒至约5分钟,从而基本上得到 所述不带电荷的调色剂颗粒的正电荷强度水平与带电显影剂组合物中的调色剂颗粒的电荷强度相同,所述电荷强度范围为约0.1毫微微图/微米,至每微米调色剂颗粒约3毫微微图。
    • 2. 发明授权
    • Toner additives
    • 调色剂添加剂
    • US4304830A
    • 1981-12-08
    • US111620
    • 1980-01-14
    • Steven B. BolteRobert J. GruberRichard F. Koehler, Jr.Edward W. Connors
    • Steven B. BolteRobert J. GruberRichard F. Koehler, Jr.Edward W. Connors
    • G03G9/097G03G9/107G03G9/113G03G9/10
    • G03G9/09758G03G9/1075G03G9/1138
    • This invention is directed to positively charged toners comprised of a resin, a colorant, and an additive possessing an anion, and more specifically, an alkyl pyridinium compound and its corresponding hydrate, of the formulas ##STR1## wherein A is an anion, which in a preferred embodiment is selected from halides such as fluoride, chloride, bromide, or iodide; sulfate, sulfonate, nitrate borate, and phosphate; R is a hydrocarbon radical containing from about 8 to about 22 carbon atoms and preferably from 12 to 18 carbon atoms. An important embodiment of the present invention is directed to a process for rapidly charging (or admixing) uncharged dry electrostatographic toner, containing the alkyl pyridinium compounds of the above formulas, subsequent to its addition to previously charged developer, whereby the uncharged toner particles acquire a charge within a period of from about 1 minute to about 5 minutes. The toners of this invention are useful for developing images of high quality in an electrostatographic imaging system.
    • 本发明涉及由具有阴离子的树脂,着色剂和添加剂组成的带正电荷的调色剂,更具体地,其中A是阴离子的式“IMAGE”的烷基吡啶鎓化合物及其相应的水合物,其中 优选的实施方案选自卤素如氟化物,氯化物,溴化物或碘化物; 硫酸盐,磺酸盐,硝酸硼酸盐和磷酸盐; R是含有约8至约22个碳原子,优选12至18个碳原子的烃基。 本发明的一个重要实施方案涉及一种用于在加入到预先装入的显影剂中之后快速装入(或混合)含有上述式的烷基吡啶鎓化合物的不带电的干燥静电色谱调色剂的方法,由此不带电荷的调色剂颗粒获得 在约1分钟至约5分钟的时间内充电。 本发明的调色剂可用于在静电图像成像系统中显影高质量图像。