利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

14 条记录 (耗时 0.023 秒)

    Soft molded composites and a process for their production
    1.
    发明授权
    Soft molded composites and a process for their production 失效
    软成型复合材料及其生产工艺

    公开(公告)号：US06294248B1

    公开(公告)日：2001-09-25

    申请号：US08313488

    申请日：1994-09-27

    申请人： Sanjeev Madan ,  James R. Jasenak ,  David L. Fair

    发明人： Sanjeev Madan ,  James R. Jasenak ,  David L. Fair

    IPC分类号： B29C4406

    CPC分类号： C08G18/6685 ,  B29C44/14 ,  C08G18/10 ,  C08G2101/0008 ,  C08G2101/0058 ,  C08G2101/0083 ,  Y10T428/249988 ,  Y10T428/249991

    摘要： Molded, soft composite articles such as seat cushions are made by (a) applying a composition which forms a soft elastomer to all interior walls of an open mold, (b) introducing a composition which will react to form a low density, high resiliency, flexible foam under molding conditions into the mold in a manner such that the foam-forming composition will be substantially completely within the elastomer-forming composition; (c) closing the mold (i) prior to introduction of the foam-forming composition or (ii) at some point during or subsequent to introduction of the foam-forming mixture but before foam formation is completed and (d) allowing the foam-forming mixture to form a foam. The composite articles produced by this simple one-step process are characterized by good cushioning characteristics, good abrasion resistance and good mold reproducibility. This molding process generates less waste and requires less labor and equipment than current commercial processes.

    摘要翻译： 通过（a）将形成软质弹性体的组合物施加到开放模具的所有内壁上，（b）引入将反应以形成低密度，高回弹性的组合物， 在模塑条件下将柔性泡沫以使得泡沫形成组合物基本上完全在弹性体形成组合物内的方式加入到模具中; （c）在引入泡沫形成组合物之前关闭模具（i），或（ii）在引入泡沫形成混合物期间或之后的某个时间点，但在泡沫形成完成之前，以及（d） 形成混合物以形成泡沫。 通过这种简单的一步法生产的复合制品的特征在于具有良好的缓冲特性，良好的耐磨性和良好的模具再现性。 与目前的商业流程相比，这种成型过程产生的废物少，劳动力和设备要少。

    Process for the production of bisphenol-A
    3.
    发明授权
    Process for the production of bisphenol-A 失效
    生产双酚A的方法

    公开(公告)号：US06933416B2

    公开(公告)日：2005-08-23

    申请号：US10412180

    申请日：2003-04-11

    申请人： Chen-Chou Chiang ,  David L. Fair

    发明人： Chen-Chou Chiang ,  David L. Fair

    IPC分类号： B01D15/18 ,  C07C37/20 ,  C07C39/16

    CPC分类号： B01D15/1857 ,  B01D15/1864 ,  B01D2215/023 ,  B01D2215/028 ,  C07C37/20 ,  C07C39/16

    摘要： The invention provides a process for the continuous production of bisphenol-A by continuously reacting phenol using an acid catalyst resin and continuously or essentially continuously removing water from the system. Continuous removal of water allows for increased catalytic activity of the resin and therefore improved productivity. Removal is facilitated by conducting the process in a carousel simulated moving bed device. Process efficiency is further enhanced by conducting the process in a device configured to have a combination of series, parallel or reverse flows which are optionally arranged so the process results in higher yield and lower impurities.

    摘要翻译： 本发明提供了一种通过使用酸催化剂树脂连续反应苯酚并连续或基本上连续地从体系中除去水来连续生产双酚A的方法。 持续去除水允许增加树脂的催化活性，从而提高生产率。 通过在旋转木马模拟移动床装置中进行该过程来促进移除。 通过在配置为具有串联，并联或逆流的组合的装置中进行该方法进一步提高了工艺效率，该组合可选地布置，使得该方法产生较高的产率和较低的杂质。

    Membrane electrolytic cell for minimizing hypochlorite and chlorate formation
    5.
    发明授权
    Membrane electrolytic cell for minimizing hypochlorite and chlorate formation 失效
    用于最小化次氯酸盐和氯酸盐形成的膜电解池

    公开(公告)号：US4528077A

    公开(公告)日：1985-07-09

    申请号：US394964

    申请日：1982-07-02

    申请人： David L. Fair ,  David D. Justice ,  Kenneth E. Woodard, Jr.

    发明人： David L. Fair ,  David D. Justice ,  Kenneth E. Woodard, Jr.

    IPC分类号： C25B1/46 ,  C25B11/04 ,  C25B1/26 ,  C25B1/34 ,  C25B11/03 ,  C25B11/10

    CPC分类号： C25B1/46 ,  C25B11/0484

    摘要： An electrolytic cell for the electrolysis of an alkali metal chloride brine is comprised of an anode compartment and a cathode compartment separated by a cation exchange membrane. The anode is comprised of an unflattened expanded structure of a valve metal selected from the group consisting of titanium, tantalum, niobium, and alloys thereof. At least one side of the anode has as the electrochemically active surface an electrodeposited layer of a valve metal oxide. A plurality of cracks traverse the electrodeposited layer and a coating of a platinum metal group oxide covers the electrodeposited layer and substantially fills the cracks. The cationic exchange membrane is comprised of a laminated structure having a first surface adapted to contact an anolyte in which the ion exchange groups are predominately sulfonic acid groups. The first surface is also in contact with the electrochemically active surface of the anode. A second surface of the cation exchange membrane, adapted to contact a catholyte, has ion exchange groups which are predominately carboxylic acid groups. The cathode positioned in the cathode compartment is spaced apart from the cation exchange membrane. The cell operates with both a low chlorine overvoltage and a low oxygen overvoltage. During electrolysis of alkali metal chloride brines, the formation of hypochlorite and chlorate ions is minimized and the alkali metal hydroxides produced have low chlorate concentrations and are suitable for use without further treatment in chlorate-sensitive applications. Spent brine treatment is simplified and at reduced costs.

    摘要翻译： 用于电解碱金属氯化物盐水的电解池包括由阳离子交换膜隔开的阳极室和阴极室。 阳极由选自钛，钽，铌及其合金的阀金属的未膨胀膨胀结构构成。 阳极的至少一侧具有作为电化学活性表面的阀金属氧化物的电沉积层。 多个裂纹穿过电沉积层，并且铂金属族氧化物的涂层覆盖电沉积层并且基本上填充裂纹。 阳离子交换膜由具有适于接触阳离子的第一表面的层压结构构成，其中离子交换基团主要是磺酸基团。 第一表面也与阳极的电化学活性表面接触。 阳离子交换膜的适于接触阴极电解液的第二表面具有主要为羧酸基团的离子交换基团。 位于阴极室中的阴极与阳离子交换膜间隔开。 电池同时运行低氯过电压和低氧过电压。 在碱金属氯化物盐水的电解过程中，次氯酸盐和氯酸根离子的形成最小化，生成的碱金属氢氧化物的氯酸盐浓度低，适合氯酸盐敏感应用中不经进一步处理。 废水处理简化，成本降低。

    Method of stabilizing metal-silica complexes in alkali metal halide brines
    6.
    发明授权
    Method of stabilizing metal-silica complexes in alkali metal halide brines 失效
    在碱金属卤化物盐水中稳定金属 - 二氧化硅配合物的方法

    公开(公告)号：US4515665A

    公开(公告)日：1985-05-07

    申请号：US544677

    申请日：1983-10-24

    申请人： David L. Fair ,  David D. Justice ,  Pilar P. Kelly

    发明人： David L. Fair ,  David D. Justice ,  Pilar P. Kelly

    IPC分类号： C25B1/46 ,  C25B15/08

    CPC分类号： C25B15/08 ,  C25B1/46

    摘要： A method for stabilizing metal-silica, particularly aluminum-silica colloidal complexes in an alkali metal halide, particularly sodium chloride, brine used as an anolyte feedstock for membrane electrolytic cells. Such stabilization is achieved by modifying the startup procedure of the cell so as to promote a sufficient level of hydroxyl ion backmigration during electrolysis so as to keep the pH of said brine at a value about 3.5.

    摘要翻译： 用于在碱金属卤化物，特别是氯化钠，盐水中稳定金属二氧化硅，特别是铝硅胶胶体络合物的方法，其用作膜电解池的阳极电解液原料。 通过改变电池的启动程序来实现这种稳定化，以便在电解过程中促进足够水平的羟基离子反向迁移，以便使所述盐水的pH值保持在约3.5。

    Bubbler container automatic refill system
    7.
    发明授权
    Bubbler container automatic refill system 失效
    起泡器容器自动补充系统

    公开(公告)号：US5038840A

    公开(公告)日：1991-08-13

    申请号：US585467

    申请日：1990-09-20

    申请人： David L. Fair

    发明人： David L. Fair

    IPC分类号： B67D7/02 ,  C23C16/448 ,  C30B25/14 ,  G01F23/292 ,  G05D9/12

    CPC分类号： B67D7/0272 ,  B67D7/0288 ,  C23C16/4482 ,  C30B25/14 ,  G01F23/2921 ,  G05D9/12 ,  Y10S261/65 ,  Y10T137/7287

    摘要： A quick disconnnect connection for a bulk chemical supply container in an automatic refill system for a liquid chemical temperature controller is provided wherein replenishing liquid chemical is automatically supplied from the bulk chemical supply unit to a bubbler ampule in the liquid chemical temperature controller. The quick disconnect connection has shutoff valves that isolate the bulk chemical supply container to prevent depth contamination of the replenishing chemical upon connection and disconnection of the bulk supply chemical container from the automatic refill system.

    摘要翻译： 提供了一种用于液体化学温度控制器的自动再充填系统中的散装化学品供应容器的快速断开连接连接，其中补充液体化学品从批量化学品供应单元自动供应到液体化学温度控制器中的起泡器安瓿。 快速断开连接具有隔离阀，其隔离散装化学品供应容器，以防止在批量供应的化学容器与自动再充填系统连接和断开时补充化学品的深度污染。

    Method of stabilizing metal-silica complexes in alkali metal halide brines
    9.
    发明授权
    Method of stabilizing metal-silica complexes in alkali metal halide brines 失效
    在碱金属卤化物盐水中稳定金属 - 二氧化硅配合物的方法

    公开(公告)号：US4618403A

    公开(公告)日：1986-10-21

    申请号：US729787

    申请日：1985-05-02

    申请人： David L. Fair ,  David D. Justice ,  Pilar P. Kelly

    发明人： David L. Fair ,  David D. Justice ,  Pilar P. Kelly

    IPC分类号： C25B1/46 ,  C25B15/08

    CPC分类号： C25B15/08 ,  C25B1/46

    摘要： A process for electrolysis in a membrane electrolytic cell comprises feeding a concentrated alkali metal halide brine containing complex-forming elements and silica at a pH of from about 4 to about 12 to the cell. The alkali metal halide brine is electrolyzed under conditions which maintain the pH of the alkali metal halide brine at a value above about 3.5.

    摘要翻译： 一种膜电解槽中的电解方法包括将含有络合物形成元素的浓缩碱金属卤化物卤水和约4至约12的pH的二氧化硅进料到电池中。 碱金属卤化物盐水在将碱金属卤化物盐水的pH值保持在约3.5以上的条件下进行电解。