Continuous carbothermal reactor
    21.
    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

    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.

    POLYMER COMPOSITE WITH INTUMESCENT GRAPHENE
    25.
    发明申请
    POLYMER COMPOSITE WITH INTUMESCENT GRAPHENE 审中-公开
    聚合物与石墨烯的复合物

    公开(公告)号:US20110095244A1

    公开(公告)日:2011-04-28

    申请号:US12999660

    申请日:2009-06-29

    IPC分类号: C09K21/14

    CPC分类号: C09K21/02

    摘要: The polymer composition is a flame retardant composition comprising an organic polymer and nanographene. Suitable organic polymers include polymers such as polyolefins and polyvinyl chloride. Preferably, the nanographene should have an aspect ratio greater than equal to about 1000:1, should have a surface area greater than or equal to about 100 m2/gram nitrogen surface absorption area, and be expanded.

    摘要翻译: 聚合物组合物是包含有机聚合物和纳米油墨的阻燃组合物。 合适的有机聚合物包括聚合物如聚烯烃和聚氯乙烯。 优选地,纳米线烯应具有大于等于约1000:1的纵横比,应具有大于或等于约100m 2 / g氮表面吸收面积的表面积,并且扩展。

    MICROWAVE-HEATABLE THERMOPLASTICS HAVING A SELECTED HEATING RATE
    27.
    发明申请
    MICROWAVE-HEATABLE THERMOPLASTICS HAVING A SELECTED HEATING RATE 审中-公开
    具有选择的加热速率的微波热电偶热敏电阻

    公开(公告)号:US20100264356A1

    公开(公告)日:2010-10-21

    申请号:US12744036

    申请日:2008-11-17

    IPC分类号: C08K3/34 C08L23/12 H01B1/20

    摘要: A method of formulating a microwave-heatable thermoplastic composition designed to have a selected heating rate. The method may include: selecting at least one of a microwave receptive additive, a microwave receptive additive particle size, and a concentration of the microwave receptive additive; selecting at least two inputs selected from the group consisting of a thermoplastic polymer composition, a microwave power, an electric field strength, a maximum allowable temperature of the thermoplastic polymer composition, a processing temperature of the thermoplastic polymer composition, and a thermal diffusivity of the thermoplastic polymer composition; and mixing a microwave receptive additive with a thermoplastic polymer to form the microwave-heatable thermoplastic composition having a selected heating rate based on the selecting at least one and the selecting at least two.

    摘要翻译: 一种配制设计成具有选定加热速率的微波可加热热塑性组合物的方法。 该方法可以包括:选择微波接收添加剂,微波接受添加剂粒度和微波接收添加剂的浓度中的至少一种; 选择从热塑性聚合物组合物,微波功率,电场强度,热塑性聚合物组合物的最大允许温度,热塑性聚合物组合物的加工温度和热扩散率的至少两个输入 热塑性聚合物组合物; 以及将微波接收添加剂与热塑性聚合物混合以形成基于选择至少一种并选择至少两种的具有选定加热速率的微波加热热塑性组合物。

    Purification of carbothermally produced aluminum nitride
    28.
    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

    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。