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    • 26. 发明授权
    • Transparent colored magnetic materials and electrostatographic process
    • 透明色磁性材料和静电放电工艺
    • US4199614A
    • 1980-04-22
    • US710538
    • 1976-08-02
    • Ronald F. Ziolo
    • Ronald F. Ziolo
    • G03G9/08G03G9/083B05D1/04B05B5/00B05D1/06
    • G03G9/0837G03G9/0825G03G9/083G03G9/0832G03G9/0833G03G9/0839Y10S428/90Y10S430/104Y10T428/2996
    • Transparent colored materials having low bulk densities and high magnetic permeabilities are obtained by encasing silicaceous particles in a sheath of magnetic or magnetically-attractable metal, which are then heat-treated. The magnetic composite particles are prepared by the solution phase thermal decomposition of transition metal carbonyls in the presence of the silicaceous particles with a suitable suspending medium. Air and moisture are excluded from the reaction vessel and the contents are heated with agitation so that the carbonyl boils and the mixture is refluxed until the temperature rises to that of the suspending medium whereupon coating of the silicaceous particles with elemental metal is complete. The mixture is cooled, the beads washed, air-dried, and recovered. The metal coated particles are then heated in an ambient atmosphere for between about 2 to about 120 minutes at a temperature of from between about 50.degree. C. and 700.degree. C. Particles having transparency, color, and magnetism in the same body are obtained.
    • 通过将硅质颗粒包裹在磁性或磁性吸引金属的护套中,然后进行热处理,可获得具有低堆积密度和高磁导率的透明有色材料。 在具有合适的悬浮介质的硅质颗粒存在下,通过溶解相热分解过渡金属羰基来制备磁性复合颗粒。 将空气和水分从反应容器中排除,并将内容物搅拌加热,使得羰基沸腾并将混合物回流直到温度升高至悬浮介质的温度,随后用元素金属涂覆硅质颗粒。 将混合物冷却,洗涤珠子,空气干燥并回收。 然后将金属涂覆的颗粒在环境气氛中在约50℃至700℃的温度下加热约2至约120分钟。获得在同一体内具有透明度,颜色和磁性的颗粒。
    • 29. 发明授权
    • Magnetic toner and ink jet compositions
    • 磁性调色剂和喷墨组合物
    • US5858595A
    • 1999-01-12
    • US475511
    • 1995-06-07
    • Ronald F. Ziolo
    • Ronald F. Ziolo
    • G03G9/083G03G9/087G03G9/12G03G9/13H01F1/00H01F1/44H01F41/16G03G9/107
    • B82Y25/00G03G9/083G03G9/0833G03G9/0837G03G9/08791G03G9/12G03G9/13H01F1/0054H01F1/44H01F41/16F16C2206/04Y10S260/38Y10S423/14Y10S423/16Y10S977/786Y10S977/838
    • Low optical density magnetic fluid which is a stable dispersion of fine magnetic particles. A method of forming the stable dispersion which includes providing an ion exchange resin, loading the ion exchange resin with an ion capable of forming a magnetic phase, treating the loaded resin to form magnetic particles and micronizing the resin and magnetic particles in a fluid to form an aqueous stable colloid. The invention provides submicron particles and submicron particles which are dispersed in an aqueous colloid. A method of forming the stable dispersion which includes providing an ion exchange resin, loading the ion exchange resin with an ion, treating the loaded resin to form nanoscale particles. Fluidizing the resin and particles to form an aqueous stable colloid. A method of forming magnetic materials having tunable magnetic properties and the magnetic materials formed thereby. The magnetic materials contain both single-domain and multidomain particles and have high initial permeability while maintaining coercivity and remanence in the material.
    • 低光密度磁流体,是细磁粒子的稳定分散体。 一种形成稳定分散体的方法,其包括提供离子交换树脂,将离子交换树脂加载成能形成磁性相的离子,处理负载的树脂以形成磁性颗粒并将树脂和磁性颗粒微粒化以形成流体 水稳定胶体。 本发明提供分散在含水胶体中的亚微米颗粒和亚微米颗粒。 形成稳定分散体的方法包括提供离子交换树脂,将离子交换树脂与离子负载,处理负载的树脂以形成纳米级颗粒。 使树脂和颗粒流化,形成水稳定胶体。 一种形成具有可调磁特性的磁性材料和由此形成的磁性材料的方法。 磁性材料含有单畴和多畴颗粒,并且在保持材料中的矫顽力和剩磁性的同时具有较高的初始磁导率。