利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

32 条记录 (耗时 0.035 秒)

    Binder system for honeycomb ceramic bodies and a method for producing honeycomb bodies
    2.
    发明授权
    Binder system for honeycomb ceramic bodies and a method for producing honeycomb bodies 失效
    蜂窝陶瓷体用粘合剂体系及其制造方法

    公开(公告)号：US06368992B1

    公开(公告)日：2002-04-09

    申请号：US09605171

    申请日：2000-06-28

    申请人： Douglas M. Beall ,  Devi Chalasani ,  Christopher J. Malarkey

    发明人： Douglas M. Beall ,  Devi Chalasani ,  Christopher J. Malarkey

    IPC分类号： C04B35632

    CPC分类号： B28B3/269 ,  C04B35/195 ,  C04B35/622 ,  C04B35/632 ,  C04B38/0006 ,  C04B2111/00129

    摘要： A binder system for use in the formation of ceramic or other powder-formed greenware comprising a binder, a solvent for the binder, a surfactant, and a component that is non-solvent with respect to the binder and solvent. The non-solvent component exhibits a lower viscosity than the solvent when containing the binder and comprises a low molecular weight oil having a 90% recovered distillation temperature range of between about 220 to 400° C. Also disclosed is a process of forming and shaping plasticized powder mixtures and a process for forming ceramic articles utilizing the binder system.

    摘要翻译： 用于形成陶瓷或其它粉末形式的绿色软化剂的粘合剂体系，其包含粘合剂，粘合剂的溶剂，表面活性剂和相对于粘合剂和溶剂为非溶剂的组分。 非溶剂组分在含有粘合剂时表现出比溶剂低的粘度，并且包含90％回收蒸馏温度范围在约220-400℃之间的低分子量油。还公开了一种将塑化的 粉末混合物和利用粘合剂体系形成陶瓷制品的方法。

    Method for producing ceramic bodies
    3.
    发明授权
    Method for producing ceramic bodies 有权
    陶瓷体的制造方法

    公开(公告)号：US06241940B1

    公开(公告)日：2001-06-05

    申请号：US09320938

    申请日：1999-05-27

    申请人： Douglas M. Beall ,  Devi Chalasani ,  Christopher J. Malarkey

    发明人： Douglas M. Beall ,  Devi Chalasani ,  Christopher J. Malarkey

    IPC分类号： B28B322

    CPC分类号： B28B3/269 ,  C04B35/195 ,  C04B35/622 ,  C04B35/632 ,  C04B38/0006 ,  C04B2111/00129

    摘要： A binder system for use in the formation of ceramic or other powder-formed greenware including a binder, a solvent for the binder, a surfactant, and a component that is non-solvent with respect to the binder and solvent. The non-solvent component exhibits a lower viscosity than the solvent when containing the binder and includes a low molecular weight oil having a 90% recovered distillation temperature range of between about 220 to 400° C. Also disclosed is a process of forming and shaping plasticized powder mixtures and a process for forming ceramic articles utilizing the binder system.

    摘要翻译： 用于形成陶瓷或其它粉末形式的绿色软化剂的粘合剂体系，其包括粘合剂，粘合剂的溶剂，表面活性剂和相对于粘合剂和溶剂是非溶剂的组分。 当含有粘合剂时，非溶剂组分显示比溶剂低的粘度，并且包括具有在约220至400℃之间的90％回收蒸馏温度范围的低分子量油。还公开了一种将塑化的 粉末混合物和利用粘合剂体系形成陶瓷制品的方法。

    Method for making cordierite honeycomb
    4.
    发明授权
    Method for making cordierite honeycomb 有权
    堇青石蜂窝制作方法

    公开(公告)号：US06773657B2

    公开(公告)日：2004-08-10

    申请号：US10174345

    申请日：2002-06-17

    申请人： Douglas M. Beall ,  Christopher J. Malarkey ,  Gregory A. Merkel

    发明人： Douglas M. Beall ,  Christopher J. Malarkey ,  Gregory A. Merkel

    IPC分类号： B28B320

    CPC分类号： C04B38/0006 ,  C04B35/195 ,  C04B2111/00129 ,  C04B2111/0037 ,  C04B2111/0081 ,  C04B2111/32 ,  Y10T428/24149 ,  Y10T428/24273 ,  C04B38/0051 ,  C04B38/0054 ,  C04B38/007

    摘要： A sintered ceramic that exhibits an average linear coefficient of thermal expansion (25-800° C.) below about 5.0×10−7° C.−1, a total porosity between the range of 20% to about 30%. Furthermore, the sintered ceramic article exhibits a pore size distribution such that at least about 86% of pores are of a pore size of less than about 2 &mgr;m. Lastly, the ceramic article exhibits an interconnected pore structure with the pores exhibiting a generally elongated shape, i.e., the pores are predominately oriented with their long axis in the plane of the webs. This invention also relates to a method for producing a sintered cordierite ceramic article involving first compounding and plasticizing a cordierite-forming inorganic powder batch comprising a platy talc having median particle of size less than about 2 &mgr;m, and preferably a talc morphology index greater than about 0.75. The batch further comprises at least 4% by weight of the inorganic powder batch mixture of a dispersible Al2O3-forming source having a specific surface area in excess of 50 m2/g and one or more of the components of kaolin, calcined kaolin, silica, and corundum, each having a median particle sizes less than 5 &mgr;m. The plasticized powder batch thus provided is next formed into a green honeycomb by extrusion through a honeycomb extrusion die and the green honeycomb is fired to a temperature and for a time sufficient to convert the green honeycomb into a crystallized cordierite ceramic article having the aforementioned properties.

    摘要翻译： 表现出低于约5.0×10 -7℃的平均线性热膨胀系数（25-800℃）的烧结陶瓷，总孔隙率在20％至30％之间。 此外，烧结陶瓷制品表现出孔径分布，使得孔的至少约86％的孔径小于约2μm。 最后，陶瓷制品表现出相互连通的孔结构，其中孔呈现出大致细长的形状，即孔主要以其长轴在纤维网的平面中取向。 本发明还涉及一种生产堇青石烧结陶瓷制品的方法，该方法首先将形成堇青石的无机粉末批料混合并增塑，该组合物包含平均粒径小于约2μm的平板状滑石，优选滑石形态指数大于约 0.75。 该批料还包含至少4重量％的比表面积超过50m 2 / g的可分散Al 2 O 3形成源的无机粉末批料混合物和一种或多种高岭土，煅烧高岭土的组分 ，二氧化硅和刚玉，各自具有小于5μm的中值粒度。 由此提供的增塑粉末批料通过蜂窝状挤压模挤出而形成绿色蜂窝状体，将生坯状的蜂窝体烧制至足以将生坯成型为具有上述特性的结晶堇青石陶瓷制品的温度和时间。

    Low expansion, high porosity, high strength cordierite body and method
    5.
    发明授权
    Low expansion, high porosity, high strength cordierite body and method 有权
    低膨胀，高孔隙率，高强度堇青石体和方法

    公开(公告)号：US06432856B1

    公开(公告)日：2002-08-13

    申请号：US09590106

    申请日：2000-06-08

    申请人： Douglas M. Beall ,  Christopher J. Malarkey ,  Gregory A. Merkel

    发明人： Douglas M. Beall ,  Christopher J. Malarkey ,  Gregory A. Merkel

    IPC分类号： C04B3503

    CPC分类号： C04B38/0006 ,  C04B35/195 ,  C04B2111/00129 ,  C04B2111/0037 ,  C04B2111/0081 ,  C04B2111/32 ,  Y10T428/24149 ,  Y10T428/24273 ,  C04B38/0051 ,  C04B38/0054 ,  C04B38/007

    摘要： A sintered ceramic honeycomb article that exhibits an average linear coefficient of thermal expansion (25-800° C.) below about 5.0×10−7° C.−1, a total porosity between the range of 20% to about 30%, and a pore size distribution such that at least about 86% of pores are of a pore size of less than about 2 &mgr;m with the pores exhibiting a generally elongated shape oriented with their long axis in the plane of the webs, the article being made from a cordierite-forming inorganic powder batch comprising a platy talc having median particle of size less than about 2 &mgr;m, at least 4% by weight of a dispersible Al2O3-forming source having a specific surface area in excess of 50 m2/g, and one or more of the components of kaolin, calcined kaolin, silica, and corundum, each having a median particle sizes less than 5 &mgr;m.

    摘要翻译： 一种烧结陶瓷蜂窝体制品，其平均线性热膨胀系数（25-800℃）低于约5.0×10-7℃-1，总孔隙率在20％至30％之间，和 孔尺寸分布使得至少约86％的孔具有小于约2μm的孔径，其中孔具有以其长轴在幅平面中定向的大致细长形状，该制品由堇青石制成 包含具有中值粒径小于约2μm的片状滑石的至少4重量％的比表面积超过50m 2 / g的可分散Al 2 O 3形成源的至少4重量％的无机粉末批料，以及一种或多种 的高岭土，煅烧高岭土，二氧化硅和刚玉的组分，各自具有小于5μm的中值粒度。

    Fabrication of ultra-thinwall cordierite structures
    7.
    发明授权
    Fabrication of ultra-thinwall cordierite structures 有权
    超薄壁堇青石结构的制作

    公开(公告)号：US06506336B1

    公开(公告)日：2003-01-14

    申请号：US09651932

    申请日：2000-08-31

    申请人： Douglas M. Beall ,  Gregory A. Merkel

    发明人： Douglas M. Beall ,  Gregory A. Merkel

    IPC分类号： B28B320

    CPC分类号： C04B35/195 ,  C04B38/0006 ,  C04B2111/00129 ,  C04B2111/0081 ,  C04B2235/3217 ,  C04B2235/3218 ,  C04B2235/3418 ,  C04B2235/3445 ,  C04B2235/349 ,  C04B2235/5409 ,  C04B2235/5436 ,  C04B2235/77 ,  C04B2235/9607 ,  C04B2235/9615

    摘要： A plasticizable raw material mixture for use in preparing a substrate having cordierite as its primary phase with a mixture of a chemical composition, percent by weight, of 11 to 17% MgO, 33 to 41% Al2O3 and, 46 to 53% SiO2, the mixture including the following (1) a platy talc having a morphology index of greater than 0.8 and exhibiting a mean particle size of less than about 5 &mgr;m; (2) an Al2O3 forming source comprising an alumina having a mean particle size of less than about 5 &mgr;m selected from the group consisting of ∝-alumina, transition aluminas, aluminum oxide monohydroxide, or aluminum trihydrate having; and, (3) one or more of the components of delaminated kaolin having a mean particle size of less than about 2 &mgr;m, calcined kaolin exhibiting a mean particle size of less than about 2 &mgr;m and a surface area of greater than about 10 m2/g and/or silica having a mean particle size of less than about 5 &mgr;m., and a method of producing a green body by compounding and plasticizing a cordierite-forming raw material mixture, forming the mixture into a green ceramic body by extrusion through an extrusion die to at least partially align the raw materials in an orientation plane in such a manner that the shrinkage of the green ceramic body upon firing is anisotropic and is greater in direction perpendicular to the orientation plane than in at least one other direction in the green ceramic body.

    摘要翻译： 一种可塑化的原料混合物，用于制备具有堇青石作为主相的基材，其组成为化学组成，重量百分比为11至17％的MgO，33至41％的Al2O3和46至53％的SiO2， 包括以下（1）形态指数大于0.8并且平均粒径小于约5μm的板状滑石; （2）Al 2 O 3形成源，其包含平均粒度小于约5μm的氧化铝，其选自丙氧基铝，过渡氧化铝，氧化铝一氢氧化物或三水合铝，其具有： 和（3）平均粒径小于约2μm的分层高岭土的一种或多种组分，煅烧高岭土的平均粒径小于约2μm，表面积大于约10m 2 / g和/或二氧化硅，以及通过将堇青石形成原料混合物进行配混和塑化来生产生坯的方法，通过挤出法将该混合物形成生坯陶瓷体 挤出模具，以使得原料在取向平面中至少部分地对准，使得烧成时的生坯陶瓷体的收缩是各向异性的，并且在垂直于取向平面的方向上比在绿色中的至少一个其它方向上的方向更大 陶瓷体。

    Cordierite structures
    8.
    发明授权
    Cordierite structures 有权
    堇青石结构

    公开(公告)号：US06300266B1

    公开(公告)日：2001-10-09

    申请号：US09354813

    申请日：1999-07-16

    申请人： Douglas M. Beall ,  Devi Chalasani

    发明人： Douglas M. Beall ,  Devi Chalasani

    IPC分类号： C04B3504

    CPC分类号： B01J37/0018 ,  B01J21/14 ,  B01J32/00 ,  B01J35/04 ,  C04B35/195 ,  C04B38/0006 ,  C04B2111/00129 ,  C04B2111/0081 ,  F01N3/2825

    摘要： A plasticizable raw material mixture for use in preparing a substrate having cordierite as its primary phase with the mixture comprised of a chemical composition, percent by weight, of 11 to 17% MgO, 33 to 41% Al2O3 and, 46 to 53% SiO2. The raw material mixture specifically comprises the following: (1) one source of Al2O3 and SiO2 comprising a clay mixture having less than about 22%, by weight based on the total raw materials in the plasticizable mixture, of calcined clay; (2) an alumina yielding precursor comprising alumina having an average particle diameter of about 1 &mgr;m or less; and, (3) at least one source of magnesia having an average particle diameter of between about 3 to 15 microns. This invention additionally relates to a method of producing a green body of cordierite-forming materials comprising preparing a plasticizable raw material mixture of the aforementioned composition, adding an organic binder system to the mixture and mixing the mixture to form an extrudable mixture, and extruding the mixture to form a substrate of the desired configuration. The green body is dried and fired to yield a ceramic substrate having cordierite as its primary phase.

    摘要翻译： 一种可塑化的原料混合物，用于制备具有堇青石作为其主相的基材，混合物由化学组成，重量百分比为11至17％的MgO，33至41％的Al2O3和46至53％的SiO2组成。 原料混合物具体包括：（1）一种Al 2 O 3和SiO 2源，其包含基于可塑化混合物中的总原料的小于约22重量％的煅烧粘土的粘土混合物; （2）具有平均粒径为约1μm或更小的氧化铝的氧化铝产生前体; 和（3）至少一种平均粒径在约3至15微米之间的氧化镁源。 本发明还涉及一种生产堇青石形成材料的生坯的方法，包括制备上述组合物的可塑性原料混合物，向混合物中加入有机粘合剂体系，并将混合物混合形成可挤出混合物，并挤出 混合物以形成所需配置的底物。 将生坯干燥并焙烧，得到具有堇青石作为其主相的陶瓷基材。

    Binder system for honeycomb ceramic bodies and a method for producing said honeycomb bodies
    9.
    发明授权
    Binder system for honeycomb ceramic bodies and a method for producing said honeycomb bodies 有权
    蜂窝陶瓷体用粘合剂体系及其制造方法

    公开(公告)号：US06299678B1

    公开(公告)日：2001-10-09

    申请号：US09735775

    申请日：2000-12-13

    申请人： Douglas M. Beall ,  Devi Chalasani

    发明人： Douglas M. Beall ,  Devi Chalasani

    IPC分类号： C04B3563

    CPC分类号： C04B35/63408 ,  C04B35/195 ,  C04B35/632 ,  C04B35/634 ,  C04B35/63496 ,  C04B35/6365 ,  C04B38/0006 ,  C04B2111/00129 ,  C09J101/28

    摘要： A binder system for use in the formation of ceramic or other powder-formed greenware comprising a binder, a solvent for the binder, a surfactant, and a component that is non-solvent with respect to the binder and solvent. The non-solvent component exhibits a lower viscosity than the solvent when containing the binder and comprises at least a portion of a branched chain paraffin exhibiting a 90% recovered distillation temperature ranging between 205° C. to about 225° C. and a carbon chain length comprised predominantly of carbon chain distributions ranging from 12 to 14. Also disclosed is a process of forming and shaping plasticized powder mixtures and a process for forming ceramic articles utilizing the binder system.

    摘要翻译： 用于形成陶瓷或其它粉末形式的绿色软化剂的粘合剂体系，其包含粘合剂，粘合剂的溶剂，表面活性剂和相对于粘合剂和溶剂为非溶剂的组分。 当含有粘合剂时，非溶剂组分显示比溶剂低的粘度，并且包含至少一部分支链链烷烃，其呈现在205℃至225℃之间的90％回收蒸馏温度和碳链 主要由12至14的碳链分布组成的长度。还公开了一种使增塑粉末混合物形成和成型的方法以及利用该粘合剂体系形成陶瓷制品的方法。

    Low CTE-low porosity cordierite bodies and method of making same
    10.
    发明授权
    Low CTE-low porosity cordierite bodies and method of making same 失效
    低CTE低孔隙堇青石体及其制备方法

    公开(公告)号：US6077796A

    公开(公告)日：2000-06-20

    申请号：US197266

    申请日：1998-11-20

    申请人： Douglas M. Beall ,  Gregory A. Merkel

    发明人： Douglas M. Beall ,  Gregory A. Merkel

    IPC分类号： C04B35/195

    CPC分类号： C04B35/195

    摘要： Low expansion, low porosity cordierite bodies having a CTE at 25-800.degree. C. of 4.times.10-7C-1 but 9.times.10-7C-1 but

    摘要翻译： 低膨胀率，低孔径堇青石体，在25-800℃的CTE为<4×10 -7 C -1，总孔隙率为<20％，或CTE为> 4×10 -7℃-1但<9×10 -7℃-1和总 孔隙度<12％，CTE> 9×10 -7 C -1但<15×10 -7 C -1，总孔隙率<10％。 它们通过以各种粒径组合选择滑石，尖晶石，高岭土，煅烧高岭土，Al 2 O 3形成材料，MgO形成材料和二氧化硅的特定组合来选择堇青石形成原料。 将原料与有效量的载体和成型助剂密切混合，并塑化成生坯，在约1370℃至1435℃的温度下干燥和烧制。焙烧时间表根据原料组合而变化。