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    • 3. 发明授权
    • Copper alloy with high strength and high conductibility, and method for manufacturing same
    • 具有高强度,高导电性的铜合金及其制造方法
    • US08652274B2
    • 2014-02-18
    • US13580954
    • 2010-12-07
    • Dae Hyun KimDong Woo LeeIn Dal KimSang Young ChoiJi Hoon LeeBo Min Jeon
    • Dae Hyun KimDong Woo LeeIn Dal KimSang Young ChoiJi Hoon LeeBo Min Jeon
    • C22C9/02C22F1/08
    • C22C9/00C22C1/02C22F1/08
    • A copper alloy includes Si to facilitate deoxidation, and can be easily manufactured even when including elements such as Cr or Sn. The copper alloy has high conductivity and high workability without negatively affecting the tensile strength. The copper alloy contains 0.2 to 0.4 wt % of Cr, 0.05 to 0.15 wt % of Sn, 0.05 to 0.15 wt % of Zn, 0.01 to 0.30 wt % of Mg, 0.03 to 0.07 wt % of Si, with the remainder being Cu and inevitable impurities. A method for manufacturing the copper alloy includes obtaining a molten metal having the described composition; obtaining an ingot; heating the ingot at a temperature of 900-1000° C. to perform a hot rolling process; cold rolling; performing a first aging process at a temperature of 400-500° C. for 2 to 8 hours; cold rolling; and performing a second aging process at a temperature of 370-450° C. for 2 to 8 hours.
    • 铜合金包括Si以促进脱氧,并且即使当包括诸如Cr或Sn的元素时也可以容易地制造。 铜合金具有高导电性和高加工性,而不会对拉伸强度产生不利影响。 铜合金含有0.2〜0.4重量%的Cr,0.05〜0.15重量%的Sn,0.05〜0.15重量%的Zn,0.01〜0.30重量%的Mg,0.03〜0.07重量%的Si,余量为Cu, 不可避免的杂质。 制造铜合金的方法包括获得具有所述组成的熔融金属; 获得锭; 在900-1000℃的温度下加热锭以进行热轧过程; 冷轧 在400-500℃的温度下进行第一次老化处理2至8小时; 冷轧 并在370-450℃的温度下进行2至8小时的第二时效处理。
    • 10. 发明申请
    • Method for Manufacturing Toner
    • 制造调色剂的方法
    • US20090280430A1
    • 2009-11-12
    • US12226065
    • 2008-01-30
    • Hui Je LeeWoo Cheul JungJi Hoon LeeYu Na KimJung Woo Kim
    • Hui Je LeeWoo Cheul JungJi Hoon LeeYu Na KimJung Woo Kim
    • G03G9/087G03G9/08
    • G03G9/0804G03G9/0806G03G9/08702G03G9/08782G03G9/09741G03G9/09766G03G9/09775G03G9/09783G03G9/09791
    • There is provided a method for manufacturing a toner capable of providing a toner having excellent low-temperature fixing property and anti-offset property by adjusting a molecular weight distribution of a polymerization toner to a narrow distribution range. The method is characterized in that a toner is polymerized using a reversible addition-fragmentation chain transfer polymerization (RAFT) method by adding a dithioacetate, xanthate or dithioester-based chain transfer agent in the polymerization of a toner. The method for manufacturing a toner comprises: dissolving a dispersant in water to prepare an aqueous dispersion solution; mixing a binder resin monomer, a charge control agent, a pigment, a wax and a dithioacetate, xanthate or dithioester-based chain transfer agent to prepare a monomer mixture; adding the monomer mixture to the aqueous dispersion solution and suspension-polymerizing the monomer mixture to form a toner composition; removing the dispersant from the toner composition; and drying the dispersant-free toner composition under a vacuum condition.
    • 提供了一种制造调色剂的方法,该调色剂能够通过将聚合调色剂的分子量分布调节到窄的分布范围来提供具有优异的低温定影性和抗偏移性的调色剂。 该方法的特征在于,通过在调色剂的聚合中加入二硫代乙酸酯,黄原酸酯或二硫代酯类的链转移剂,使用可逆的加成 - 断裂链转移聚合(RAFT)方法使调色剂聚合。 调色剂的制造方法包括:将分散剂溶解在水中以制备水分散液; 混合粘合剂树脂单体,电荷控制剂,颜料,蜡和二硫代乙酸酯,黄原酸酯或二硫代酯基链转移剂以制备单体混合物; 将单体混合物加入到水分散液中,并使单体混合物悬浮聚合以形成调色剂组合物; 从调色剂组合物中除去分散剂; 并在真空条件下干燥无分散剂的调色剂组合物。