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29 条记录 (耗时 0.023 秒)

    Continuous carbothermal reactor
    1.
    发明授权
    Continuous carbothermal reactor 失效
    连续碳热反应堆

    公开(公告)号：US5112579A

    公开(公告)日：1992-05-12

    申请号：US626648

    申请日：1990-12-12

    申请人： David A. Dunn ,  Michael S. Paquette ,  Henry Easter ,  Roger K. Pihlaja

    发明人： David A. Dunn ,  Michael S. Paquette ,  Henry Easter ,  Roger K. Pihlaja

    IPC分类号： C01B21/072 ,  C04B35/581

    CPC分类号： C04B35/581 ,  C01B21/0726

    摘要： A reactor for carbothermal reduction is disclosed. By supplying gaseous nitrogen throughout a discrete aliquot of a preferably pelletized mixture of aluminum oxide, carbon and, optionally, calcium oxide during the carbothermal reduction thereof to aluminum nitride and continuously removing gaseous reaction products therefrom, a high quality aluminum nitride is produced. One means of supplying gaseous nitrogen to the mixture of solid reactants is a perforated tray having a hollowed-out bottom. Gaseous nitrogen supplied to the hollowed-out portion flows through the perforations and throughout solid reactants contained in the tray. The carbon may be alternatively supplied, in whole or in part, as a gaseous reactant.

    摘要翻译： 公开了一种用于碳热还原的反应器。 通过在氮化铝的碳热还原过程中将优选颗粒化的氧化铝，碳和任选的氧化钙的混合物的等离子体提供气态氮并连续地从其中除去气态反应产物，产生高质量的氮化铝。 向固体反应物的混合物供应气态氮的一种方法是具有中空底部的多孔板。 供应到中空部分的气态氮流过穿孔并遍及容纳在托盘中的固体反应物。 可以全部或部分地将碳作为气体反应物供应。

    Continuous carbothermal reactor
    2.
    发明授权
    Continuous carbothermal reactor 失效
    连续碳热反应堆

    公开(公告)号：US4983553A

    公开(公告)日：1991-01-08

    申请号：US447310

    申请日：1989-12-07

    申请人： David A. Dunn ,  Michael S. Paquette ,  Henry Easter ,  Roger K. Pihlaja

    发明人： David A. Dunn ,  Michael S. Paquette ,  Henry Easter ,  Roger K. Pihlaja

    IPC分类号： C01B21/072 ,  C04B35/581

    CPC分类号： C04B35/581 ,  C01B21/0726

    摘要： By supplying gaseous nitrogen throughout a discrete aliquot of a preferably pelletized mixture of aluminum oxide, carbon and, optionally, calcium oxide during the carbothermal reduction thereof to aluminum nitride and continuously removing gaseous reaction products therefrom, a high quality aluminum nitride is produced. One means of supplying gaseous nitrogen to the mixture of solid reactants is a perforated tray having a hollowed-out bottom. Gaseous nitrogen supplied to the hollowed-out portion flows through the perforations and throughout solid reactants contained in the tray. The carbon may be alternatively supplied, in whole or in part, as a gaseous reactant.

    Purification of carbothermally produced aluminum nitride
    3.
    发明授权
    Purification of carbothermally produced aluminum nitride 失效
    碳热还原氮化铝的纯化

    公开(公告)号：US5100846A

    公开(公告)日：1992-03-31

    申请号：US582285

    申请日：1990-09-13

    申请人： David A. Dunn ,  James A. Hughes ,  Joyce A. Broka ,  Michael S. Paquette

    发明人： David A. Dunn ,  James A. Hughes ,  Joyce A. Broka ,  Michael S. Paquette

    IPC分类号： C01B21/072

    CPC分类号： C01B21/0726

    摘要： A method is disclosed for purifying aluminum nitride produced by carbothermal reaction of aluminum oxide, carbon and nitrogen. Precursor pellets including aluminum oxide and carbon are exposed to nitrogen under conditions sufficient to carbothermally produce aluminum oxide, thereby producing aluminum nitride pellets having surface portions relatively rich in thermal conductivity-lowering and color-causing impurities compared to core portions of the aluminum nitride pellets. Significant amounts of the surface portions are thereafter removed to thereby significantly increase the purity of the aluminum nitride pellets.

    摘要翻译： 公开了一种用于纯化由氧化铝，碳和氮的碳热反应产生的氮化铝的方法。 包含氧化铝和碳的前体粒料在足以碳氢化生成氧化铝的条件下暴露于氮气，从而与氮化铝粒料的核心部分相比，生产具有相对较高导热性降低和着色杂质的表面部分的氮化铝丸粒。 然后除去显着量的表面部分，从而显着提高氮化铝颗粒的纯度。

    Intercalation agent free compositions useful to make nanocomposite polymers
    7.
    发明授权
    Intercalation agent free compositions useful to make nanocomposite polymers 失效
    可用于制备纳米复合材料聚合物的嵌入剂自由组合物

    公开(公告)号：US08481616B2

    公开(公告)日：2013-07-09

    申请号：US13351004

    申请日：2012-01-16

    申请人： Luyi Sun ,  Jae Woong Boo ,  Hung-jue Sue ,  Maurice J. Marks ,  Richard F. Fibiger ,  Michael S. Paquette

    发明人： Luyi Sun ,  Jae Woong Boo ,  Hung-jue Sue ,  Maurice J. Marks ,  Richard F. Fibiger ,  Michael S. Paquette

    IPC分类号： C08G59/18 ,  C08K9/00 ,  C08K7/00 ,  C08K3/34 ,  B32B27/20 ,  B32B27/38

    CPC分类号： C08J3/2053 ,  B82Y30/00 ,  C08J5/005 ,  C08J2363/00 ,  Y10S977/778 ,  Y10S977/779 ,  Y10S977/783 ,  Y10S977/785 ,  Y10S977/786 ,  Y10S977/787

    摘要： A two step method for preparing a filler composition, the filler composition useful to prepare a nanocomposite polymer and an epoxy nanocomposite coating. First, disperse a water dispersible filler material in a liquid comprising water, but without any added intercalation agent, to form a dispersion. Second, replace at least a portion of the water of the liquid with an organic solvent so that the water concentration of the liquid is less than six percent by weight to form the filler composition, the average size of at least one dimension of the filler material being less than two hundred nanometers upon examination by transmission electron microscopy of a representative freeze dried sample of the dispersion of the first step. A nanocomposite polymer can be prepared by mixing the filler composition with one or more polymer, polymer component, monomer or prepolymer to produce a polymer containing the filler composition.

    摘要翻译： 用于制备填料组合物的两步法，用于制备纳米复合聚合物和环氧纳米复合涂层的填料组合物。 首先，将水分散性填料分散在包含水的液体中，但不加任何添加的嵌入剂，以形成分散体。 第二，用有机溶剂代替液体的至少一部分水，使得液体的水浓度小于6重量％以形成填料组合物，填料的至少一个维度的平均尺寸 通过透射电子显微镜检查第一步的分散体的代表性冷冻干燥样品，小于二百纳米。 可以通过将填料组合物与一种或多种聚合物，聚合物组分，单体或预聚物混合以制备含有填料组合物的聚合物来制备纳米复合聚合物。