公开(公告)号：WO1990003348A1

公开(公告)日：1990-04-05

申请号：PCT/US1989004080

申请日：1989-09-20

Applicant: THE DOW CHEMICAL COMPANY

Inventor： THE DOW CHEMICAL COMPANY ,  DUBENSKY, Ellen, M. ,  TIMM, Edward, E.

IPC: C04B35/56

CPC classification number: C04B35/645 ,  C04B35/5611 ,  C04B35/5622 ,  C04B35/5626 ,  C04B35/58014 ,  C04B35/58028 ,  C04B35/58092 ,  C04B35/6261 ,  C04B35/6455 ,  C04B35/65 ,  C04B2235/3839 ,  C04B2235/3843 ,  C04B2235/3847 ,  C04B2235/3886 ,  C04B2235/3891 ,  C04B2235/404 ,  C04B2235/405 ,  C04B2235/424 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/604 ,  C04B2235/6562 ,  C04B2235/6565 ,  C04B2235/77 ,  C04B2235/785 ,  C04B2235/80 ,  C04B2235/96

Abstract: A powdered admixture of a boron, carbon, nitrogen or silicon derivative of a first metal, e.g., tungsten carbide, and a source of a second metal, e.g., molybdenum subcarbide when the second metal is molybdenum, is, when subjected to densification conditions, partially reacted and converted to a hard, wear resistant material. Such a material, formed from an admixture of tungsten carbide and molybdenum subcarbide, contains tungsten monocarbide and at least one mixed tungsten/molybdenum carbide. This material has a Vickers hardness of at least about 2200 kg/mm2 measured using a 1 kg load. Articles formed from this material can be useful as, for example, nozzles in abrasive or nonabrasive waterjet cutting machines and various parts of wire drawing apparatus.

公开(公告)号：WO2002059536A1

公开(公告)日：2002-08-01

申请号：PCT/US2001/014500

申请日：2001-05-04

Applicant: THE DOW CHEMICAL COMPANY ,  GALLOWAY, Connie, M. ,  MALL, Kenneth, W. ,  JEWELL, Dennis, W. ,  ECKERT, William, M. ,  SALINAS, Leopoldo, III ,  TIMM, Edward, E.

Inventor： GALLOWAY, Connie, M. ,  MALL, Kenneth, W. ,  JEWELL, Dennis, W. ,  ECKERT, William, M. ,  SALINAS, Leopoldo, III ,  TIMM, Edward, E.

IPC: F28C3/06

CPC classification number: F28C3/06 ,  F28F19/00 ,  F28F21/02

Abstract: A vessel for quenching gases having a temperature in excess of 1100°C by contact with an aqueous corrosive liquid (30) comprising: an upper vessel wall portion (22) lined with a hot face material capable of withstanding hot dry gas at temperatures in excess of 1100°C; a lower vessel wall portion (35) in contact with an aqueous corrosive liquid (30); and a membrane wall portion (21) located within a vessel wall (35) proximate an anticipated liquid/gas interface level, the membrane wall having internal channels (26) for circulating a cooling fluid.

Abstract translation: 一种用于通过与水性腐蚀性液体（30）接触来淬灭温度超过1100℃的气体的容器，包括：上部容器壁部分（22），其内部具有能够在过高温度下耐受热干燥气体的热面材料 1100℃; 与水性腐蚀性液体（30）接触的下部容器壁部分（35）; 以及靠近预期液体/气体界面水平位于容器壁（35）内的膜壁部分（21），所述膜壁具有用于循环冷却流体的内部通道（26）。

公开(公告)号：WO1988004396A1

公开(公告)日：1988-06-16

申请号：PCT/US1987003202

申请日：1987-12-04

Applicant: THE DOW CHEMICAL COMPANY

Inventor： THE DOW CHEMICAL COMPANY ,  TIMM, Edward, E.

IPC: F27B09/04

CPC classification number: B22F3/156 ,  B22F3/1216 ,  B22F3/15 ,  B22F2998/00 ,  B30B11/001 ,  C04B35/6455

Abstract: A process for preparing a dense, consolidated body (13') from a preform. The process requires compressing the preform (13) in a forging press (18) in an isostatic die assembly (15). The assembly (15) includes an open top (15'), ceramic-containing shell (18) and a pressure-transmitting medium (14) wherein the preform is placed in the shell and surrounded by the medium. The assembly and, hence, the preform are compressed under such conditions of temperature, time and pressure that dense, consolidated body of desired shape is formed. The process then requires recovering the body by separating the body from the fluid pressure-transmitting medium.

公开(公告)号：WO1998009716A1

公开(公告)日：1998-03-12

申请号：PCT/US1997015522

申请日：1997-09-04

Applicant: THE DOW CHEMICAL COMPANY

Inventor： THE DOW CHEMICAL COMPANY ,  LAMPARSKI, Lester, L. ,  NESTRICK, Terry, J. ,  TIMM, Edward, E. ,  NILES, Thomas, D.

IPC: B01D53/70

CPC classification number: B01D53/70 ,  B01D53/83

Abstract: A process for reducing emissions of dioxins and furans in a stack gas from the incineration of organic materials, comprising: incinerating the organic material; adding one or more dioxine-reactive materials which are deposited on the flyash or on a supplemental particulate support optionally added upstream of an apparatus for removing flyash from the gaseous products of incineration prior to their emission in a stack gas, and which under the conditions prevailing in the apparatus will react with the dioxins in and from said gaseous products from said incineration step to produce one or more corresponding dioxin-derivative materials which are preferably substantially retained on the flyash or supplemental particulate support or both through the incinerator and which are periodically or continuously removed with said flyash and supplemental particulate support from the flyash/particulate removal apparatus, or in the alternative, adding the one or more dioxin-reactive materials via the addition of a particulate material including the one or more dioxin-reactive materials therein or thereon upstream of the flyash removal apparatus; and, maintaining the one or more dioxin-reactive materials in contact with the dioxins in sufficient concentrations and for a sufficient time to reduce the concentration of dioxins in and from said gaseous products through the formation of said dioxin-derivative materials.

Abstract translation: 一种减少来自有机材料焚烧的烟气中二恶英和呋喃的排放的方法，包括：焚烧有机材料; 添加一种或多种二氧化物反应性材料，其沉积在飞灰上或补充颗粒载体上，任选地在用于在烟气中排放之前从焚化气体产物中除去飞灰的设备的上游，并且在主要条件下 在设备中将与来自所述焚烧步骤的所述气态产物中的二恶英反应以产生一种或多种相应的二恶英衍生物，其优选基本上保留在飞灰或补充颗粒载体上，或两者通过焚烧炉，并且周期性地或 用粉煤灰/颗粒去除装置中的所述飞灰和补充颗粒载体连续除去，或者替代地，通过添加包含其中或其上的一种或多种二恶英反应性材料的颗粒材料来添加一种或多种二恶英反应性材料 飞灰去除装置上游; 并且保持一种或多种二恶英反应性物质与二恶英的接触足够的浓度，并持续足够的时间以通过形成所述二恶英衍生物材料来降低所述气态产物中和从所述气态产物中的浓度。

公开(公告)号：WO1994021574A1

公开(公告)日：1994-09-29

申请号：PCT/US1993002443

申请日：1993-03-18

Applicant: THE DOW CHEMICAL COMPANY

Inventor： THE DOW CHEMICAL COMPANY ,  DUBENSKY, Ellen, M. ,  TIMM, Edward, E. ,  GULAU, Ann, M. ,  BOARD, Julie, L.

IPC: C04B35/52

CPC classification number: C04B35/6455 ,  C04B35/5626

Abstract: A powdered admixture of a boron, carbon, nitrogen or silicon derivative of a first metal is combined with at least one other reactant that is selected from (a) a boron, carbon, nitrogen or silicon derivative of a second metal wherein the derivative differs from that of the first metal, (b) a source of a second metal and a source of a third metal, or (c) a source of the second metal and a densification promoting amount of an iron group metal, subjected to densification conditions (heat and pressure), partially reacted and converted to a hard, wear resistant material. The wear resistant material contains an amount of the first metal derivative as well as at least one material of varying stoichiometry that is the partial reaction product. The material may also contains residual, unreacted portions of components other than the first metal derivative. Articles formed from this material can be useful in wear resistant applications.

Abstract translation: 将第一金属的硼，碳，氮或硅衍生物的粉末状混合物与至少一种选自（a）第二金属的硼，碳，氮或硅衍生物的其它反应物组合，其中衍生物不同于 第一金属，（b）第二金属源和第三金属源，或（c）第二金属源和致密化促进量的铁族金属的致密化条件（热量 和压力），部分反应并转化成硬的耐磨材料。 耐磨材料含有一定量的第一金属衍生物以及作为部分反应产物的化学计量变化的至少一种材料。 所述材料还可含有第一金属衍生物以外的残留的未反应部分。 由该材料形成的制品可用于耐磨应用。

公开(公告)号：WO1988000877A1

公开(公告)日：1988-02-11

申请号：PCT/US1987001827

申请日：1987-07-27

Applicant: THE DOW CHEMICAL COMPANY

Inventor： THE DOW CHEMICAL COMPANY ,  PORCHIA, Jose ,  REDDY, Damoder ,  GARCES, Juan, M. ,  TIMM, Edward, E.

IPC: B29B09/00

CPC classification number: C01B33/16

Abstract: Preparation of spheroidal silica polymer beads which exhibit a uniform distribution of particle and pore size. Uniformly sized reactive mixture droplets formed by vibratory excitation of a laminar jet of reactive mixture material are polymerized in a continuous liquid medium.

Abstract translation: 球形二氧化硅聚合物珠粒的制备，其表现出均匀的颗粒分布和孔径。 通过反应混合物材料的层流射流的振动激发形成的均匀尺寸的反应性混合物液滴在连续液体介质中聚合。

公开(公告)号：EP0998362A1

公开(公告)日：2000-05-10

申请号：EP98931489.3

申请日：1998-06-23

Applicant: THE DOW CHEMICAL COMPANY

Inventor： MACKI, James, M. ,  NESS, Eric, A. ,  NILSSON, Robert, T. ,  DUBENSKY, Ellen, M. ,  ROZMUS, Walter, J., Jr. ,  KELTO, Clifford, A. ,  TIMM, Edward, E.

IPC: B22F7/06 ,  C04B37/00 ,  C04B35/56 ,  C22C29/02 ,  C22C29/00

CPC classification number: B22F3/156 ,  B22F3/14 ,  B22F3/15 ,  B22F7/062 ,  B22F2005/001 ,  B22F2998/00 ,  C04B35/645 ,  C04B37/001 ,  C04B37/021 ,  C04B2235/6567 ,  C04B2237/34 ,  C04B2237/343 ,  C04B2237/348 ,  C04B2237/36 ,  C04B2237/361 ,  C04B2237/365 ,  C04B2237/366 ,  C04B2237/368 ,  C04B2237/401 ,  C04B2237/402 ,  C04B2237/403 ,  C04B2237/404 ,  C04B2237/405 ,  C04B2237/406 ,  C04B2237/407 ,  C04B2237/588 ,  C04B2237/60 ,  C04B2237/704 ,  C04B2237/76 ,  B22F7/002

Abstract: A consolidated complex shaped article having a density of at least 95 percent of theoretical density is prepared by placing a plurality of separate bodies in an arrangement, such that each separate body is in contact with at least one other separate body to form an aggregate body and wherein at least one of the separate bodies is essentially dense. The material of each separate body is comprised of a ceramic, a cermet or a metal. The aggregate body is then consolidated at a consolidating temperature superatmospheric pressure and time at temperature and time at superatmospheric pressure sufficient to form a consolidated shaped article. In consolidating the aggregate body, the consolidating temperature is a temperature that fails to form a liquid within at least one separate body and the superatmospheric pressure is applied for at least a portion of the time at the consolidating temperature.

公开(公告)号：EP0292552A1

公开(公告)日：1988-11-30

申请号：EP88900321.0

申请日：1987-12-04

Applicant: THE DOW CHEMICAL COMPANY

Inventor： TIMM, Edward, E.

IPC: B29C67 ,  B22F1 ,  B22F3 ,  B28B3 ,  B30B11 ,  C04B35 ,  F27B9

CPC classification number: B22F3/156 ,  B22F3/1216 ,  B22F3/15 ,  B22F2998/00 ,  B30B11/001 ,  C04B35/6455

Abstract: Procédé de production d'un corps dense consolidé (13') à partir d'une ébauche. Le procédé consiste à comprimer l'ébauche (13) dans une presse de forgeage (18) dans un ensemble à matrice isostatique (15). L'ensemble (15) comprend une coquille (18) à sommet ouvert (15') contenant une matière céramique, et un milieu de transmission de pression (14). L'ébauche est placée dans la coquille et est entourée par le milieu. L'ensemble et, par conséquent, l'ébauche sont comprimés pendant un temps donné à une température et à une pression prédéterminées, de manière à obtenir un corps dense consolidé présentant la forme désirée. Ce corps est ensuite séparé du milieu de transmission de pression.

公开(公告)号：EP0627017A1

公开(公告)日：1994-12-07

申请号：EP92914003.0

申请日：1992-02-20

Applicant: THE DOW CHEMICAL COMPANY

Inventor： TIMM, Edward, E. ,  GULAU, Ann, M.

IPC: C22C29 ,  B22F3

CPC classification number: B22F3/156 ,  B22F2998/00 ,  C22C29/067 ,  C22C29/08

Abstract: Le rhénium sert d'unique métal liant lors de la préparation de métaux durs frittés à base de carbure de tungstène, de carbure de titane ou de carbure d'hafnium. Les métaux durs frittés ainsi obtenus trouvent des applications classiques telle que la fabrication d'outils coupants.

公开(公告)号：EP0292552B1

公开(公告)日：1992-09-02

申请号：EP88900321.6

申请日：1987-12-04

Applicant: THE DOW CHEMICAL COMPANY

Inventor： TIMM, Edward, E.

IPC: F27B9/04 ,  B29C67/00 ,  C04B35/60 ,  B22F1/00 ,  B22F3/00

CPC classification number: B22F3/156 ,  B22F3/1216 ,  B22F3/15 ,  B22F2998/00 ,  B30B11/001 ,  C04B35/6455

Abstract: A process for preparing a dense, consolidated body (13') from a preform. The process requires compressing the preform (13) in a forging press (18) in an isostatic die assembly (15). The assembly (15) includes an open top (15'), ceramic-containing shell (18) and a pressure-transmitting medium (14) wherein the preform is placed in the shell and surrounded by the medium. The assembly and, hence, the preform are compressed under such conditions of temperature, time and pressure that dense, consolidated body of desired shape is formed. The process then requires recovering the body by separating the body from the fluid pressure-transmitting medium.