Porous alumina and its fabrication procedures
    12.
    发明申请
    Porous alumina and its fabrication procedures 失效
    多孔氧化铝及其制造工艺

    公开(公告)号:US20020043734A1

    公开(公告)日:2002-04-18

    申请号:US09748019

    申请日:2000-12-27

    摘要: This invention relates to a method of producing an alumina porous material using a mixed powder of alumina powder and aluminum hydroxide represented by the chemical formula Al(OH)3 at different percentages as the starting material, comprising the steps of heating this mixed powder to decompose the aluminum hydroxide and further heat treating it within a temperature range of 1,000 to 1,600null C., and to the alumina porous material produced by the above-mentioned method with a porosity exceeding 40 volume % and its specific surface area of 8 to 40 m2/g, and further to a filter and catalyst carrier that are obtained using this alumina porous material.

    摘要翻译: 本发明涉及使用以不同百分数表示的化学式Al(OH)3表示的氧化铝粉末和氢氧化铝的混合粉末作为起始材料的氧化铝多孔材料的制造方法,包括以下步骤:将该混合粉末加热分解 氢氧化铝,并在1000〜1600℃的温度范围内进一步热处理,并且通过上述方法制造的氧化铝多孔材料,孔隙率超过40体积%,比表面积为8〜40m 2 / g,进一步涉及使用该氧化铝多孔材料获得的过滤器和催化剂载体。

    Fire door core assembly
    14.
    发明申请
    Fire door core assembly 审中-公开
    防火门芯组件

    公开(公告)号:US20040163571A1

    公开(公告)日:2004-08-26

    申请号:US10687607

    申请日:2003-10-20

    发明人: Andre Fortin

    CPC分类号: E06B3/7015 E06B2003/7051

    摘要: A fire resistant wood door is formed from an opposing pair of rails interconnected by a upper and lower stiles forming an outer frame. A wood laminate core is provided within the outer frame and covered by outer sheathing. The wood laminate core is formed from first and second panels and a heat barrier layer. Each of the first and second panels is formed from an organic material and provided with a plurality of grooves on one surface. The heat barrier layer is in the form of a casting applied to the grooved surface of at least one, and preferably both, of the first and second panels. The panels are then joined together with the heat barrier layer sandwiched therebetween. When joined with the outer frame and sheathing, a wood door is formed having a fire rating of at least 45 minutes.

    摘要翻译: 防火木门由相对的一对轨道形成,所述相对的一对轨道通过形成外框架的上部和下部框架相互连接。 木质层压芯设置在外框架内并被外护套覆盖。 木材层压芯由第一和第二面板和隔热层形成。 第一和第二面板中的每一个由有机材料形成并且在一个表面上设置有多个凹槽。 隔热层是施加到第一和第二面板的至少一个,优选两个的带槽表面的铸件的形式。 然后将面板与夹在其间的隔热层连接在一起。 当与外框架和护套连接时,形成具有至少45分钟的防火等级的木门。

    Lightweight aggregate
    17.
    发明申请
    Lightweight aggregate 审中-公开
    轻量聚集体

    公开(公告)号:US20030227814A1

    公开(公告)日:2003-12-11

    申请号:US10166163

    申请日:2002-06-10

    摘要: Producing both colored and noncolored lightweight aggregates. The processes involve mixing a lightweight fine material such as ash with cement, and optionally pigment, then agglomerating the mixture, curing, and sizing the lightweight aggregate. Calcium stearate is added to the lightweight aggregate for reducing the moisture permeability of the lightweight aggregate end product. The colored and noncolored lightweight aggregate may be used in a variety of ways such as to provide a lightweight concrete mix with the same exterior and interior color, and for other asphalt pavement, geotechnical, horticulture, and specialty uses.

    摘要翻译: 生产有色和无色轻质骨料。 该方法包括将轻质细料如灰分与水泥混合,以及任选的颜料混合,然后使混合物凝聚,固化和使该轻质骨料的尺寸。 将硬脂酸钙加入到轻骨料中以降低轻骨料最终产品的透湿性。 有色和未着色的轻质骨料可以以各种方式使用,例如提供具有相同外部和内部颜色的轻质混凝土混合物,以及其它沥青路面,岩土,园艺和特殊用途。

    Non-ionic foam composition for treating asbestos-containing materials and method of using same
    18.
    发明申请
    Non-ionic foam composition for treating asbestos-containing materials and method of using same 有权
    用于处理含石棉材料的非离子泡沫组合物及其使用方法

    公开(公告)号:US20020115900A1

    公开(公告)日:2002-08-22

    申请号:US09740951

    申请日:2000-12-21

    摘要: A composition for transforming a chrysotile asbestos-containing material into a non-asbestos material is disclosed, wherein the composition comprises water, at least about 30% by weight of an acid component, at least about 0.1% by weight of a source of fluoride ions, and a stable foam forming amount of a foaming agent system composed of a non-ionic alkyl polyglycoside alone or with additional non-ionic foaming agents. A method of transforming the asbestos-containing material into a non-asbestos material using the present composition in the form of a foam also disclosed.

    摘要翻译: 公开了用于将含温石棉的材料转化成非石棉材料的组合物,其中所述组合物包含水,至少约30重量%的酸组分,至少约0.1重量%的氟离子源 和稳定的泡沫形成量的由非离子烷基多糖苷单独或与另外的非离子发泡剂组成的发泡剂体系。 使用泡沫形式的本发明组合物将含石棉材料转化成非石棉材料的方法也被公开。

    Silicon nitride filter and method for its production
    19.
    发明申请
    Silicon nitride filter and method for its production 失效
    氮化硅过滤器及其生产方法

    公开(公告)号:US20020053542A1

    公开(公告)日:2002-05-09

    申请号:US09935666

    申请日:2001-08-24

    IPC分类号: C04B038/00

    摘要: The present invention provides a silicon nitride filter which is a filter excellent in heat resistance, thermal shock resistance, corrosion resistance, acid resistance and mechanical strength and suitable for dust arresting or dust removing, and which is particularly useful as a filer for particulates, and a method for its production. The present invention provides a method for producing a silicon nitride filter, characterized by heat-treating in nitrogen a green body comprising from 40 to 90% of metal silicon particles having an average particle diameter of from 1 to 200 nullm and from 10 to 60% of a pore-forming agent, provided that the total amount of the metal silicon particles and the pore-forming agent is at least 90%, to form a porous product made substantially of silicon nitride. The present invention provides a silicon nitride filter characterized in that the porosity is from 40 to 70%, and the cumulative pore volume of pores with diameters of at most 1 nullm is from 1 to 15 vol % of the total pore volume.

    摘要翻译: 本发明提供一种氮化硅过滤器,其是耐热性,耐热冲击性,耐腐蚀性,耐酸性和机械强度优异的过滤器,并且适用于除尘或除尘,并且其特别适用于颗粒物的过滤器,以及 一种生产方法。 本发明提供一种氮化硅过滤器的制造方法,其特征在于在氮气中热处理生坯,所述生坯由40〜90%的平均粒径为1〜200μm的金属硅粒子和10〜60% 的孔隙形成剂,只要金属硅颗粒和成孔剂的总量为至少90%,以形成基本上由氮化硅制成的多孔产品。 本发明提供一种氮化硅过滤器,其特征在于,孔隙率为40〜70%,直径为1μm以下的孔的累积孔体积为总孔体积的1〜15体积%。