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6185 条记录 (耗时 0.025 秒)

    Decolorization of ketones
    31.
    发明授权
    Decolorization of ketones 失效
    酮的脱色

    公开(公告)号：US3865880A

    公开(公告)日：1975-02-11

    申请号：US17918771

    申请日：1971-09-09

    申请人： EXXON RESEARCH ENGINEERING CO

    发明人： QUELLY JOSEPH R ,  MCNAMARA THOMAS P

    IPC分类号： C07C45/78 ,  C07C49/06 ,  C07C49/10

    CPC分类号： C07C45/79 ,  C07C49/10 ,  C07C49/04

    摘要： A method for the treatment of crude off-color alkanone product streams which involves percolating the streams through a bed containing a color-body reducing agent, i.e., metal borohydrides and preferably a filter material in admixture and thereby recoverying a product having an improved color.

    摘要翻译： 一种用于处理粗制异色烷烃产物流的方法，其包括将物流渗透通过含有着色体还原剂的床，即金属硼氢化物，优选混合物中的过滤材料，从而回收具有改进颜色的产品。

    Anti-knock injection for in-line blending of gasoline
    32.
    发明授权
    Anti-knock injection for in-line blending of gasoline 失效
    防爆注射用于汽油的在线混合

    公开(公告)号：US3864095A

    公开(公告)日：1975-02-04

    申请号：US42764473

    申请日：1973-12-26

    申请人： EXXON RESEARCH ENGINEERING CO

    发明人： SINCLAIR JOHN T ,  CLARK FRANKLIN P

    IPC分类号： C10L1/06 ,  G05D21/02 ,  C10L1/30 ,  G05D11/02

    CPC分类号： C10L1/06 ,  G05D21/02 ,  Y10T137/0329 ,  Y10T137/2501

    摘要： A method for adding lead alkyl anti-knock compounds during inline gasoline blending. Rapid response to changes in octane level as measured by an octane analyzer is obtained by varying the rate of injection of a constant concentration dilute anti-knock solution. The method provides a constant concentration anti-knock solution which is prepared at the rate required to meet the desired octane level of the finished gasoline stream. Since response of the anti-knock solution injection system is substantially improved by using a constant concentration solution, the anti-knock facilities may be located far from the gasoline blending equipment.

    摘要翻译： 一种在线汽油混合中添加铅烷基防爆化合物的方法。 通过改变恒定浓度稀释的抗敲除溶液的注入速率，可以获得辛烷值分析仪测得的对辛烷值变化的快速响应。 该方法提供恒定浓度的抗爆震溶液，其以满足成品汽油流的所需辛烷值所需的速率制备。 由于通过使用恒定浓度溶液来显着提高防爆溶液注入系统的响应，所以防爆设备可以位于远离汽油混合设备的位置。

    Polymers with improved properties and process therefor
    34.
    发明授权
    Polymers with improved properties and process therefor 失效
    具有改进性质的聚合物及其过程

    公开(公告)号：US3862265A

    公开(公告)日：1975-01-21

    申请号：US24049472

    申请日：1972-04-03

    申请人： EXXON RESEARCH ENGINEERING CO

    发明人： STEINKAMP ROBERT A ,  GRAIL THOMAS J

    IPC分类号： B29C47/10 ,  B29C47/38 ,  C08F8/00 ,  C08F8/50 ,  C08F255/00 ,  C08F15/00

    CPC分类号： C08F255/00 ,  B29C47/0004 ,  B29C47/0021 ,  B29C47/1063 ,  B29C47/1081 ,  B29C47/38 ,  B29K2105/0005 ,  C08F8/00 ,  C08F8/50 ,  C08F10/00

    摘要： Modified polymers, praticularly polyolefins having improved flow and in some instances improved adhesion properties over that of a polymeric, e.g. polyolefin, base stock used as a starting material, are produced by a controlled reaction often involving degradation in an extruder, in which an initiator is injected under conditions of either maximum distribution or intensive mixing wherein appreciable rheological, i.e., molecular weight distribution, changes in said base polymer occur. In some embodiments monomers are also grafted to said base stock, during said degradation process. In such instances, exceptional, novel, grafted polymers with high melt flow properties and other useful properties are obtained.

    摘要翻译： 改性聚合物，具有改进流动性的改性聚烯烃，并且在一些情况下改善了粘合性能，优于聚合物，例如聚合物。 聚烯烃，作为起始原料的基料通过常常涉及在挤出机中降解的受控反应产生，其中在最大分布或强烈混合的条件下注入引发剂，其中明显的流变学，即分子量分布， 所述基质聚合物发生。 在一些实施方案中，在所述降解过程期间，单体也被接枝到所述基料上。 在这种情况下，获得具有高熔体流动性能和其它有用特性的特殊的新型接枝聚合物。

    FM demodulator circuit for a facsimile system
    37.
    发明授权
    FM demodulator circuit for a facsimile system 失效
    FM解调器电路用于传真系统

    公开(公告)号：US3859459A

    公开(公告)日：1975-01-07

    申请号：US33292573

    申请日：1973-02-16

    申请人： EXXON RESEARCH ENGINEERING CO

    发明人： FORD JR HERBERT P

    IPC分类号： H03D3/24 ,  H04L27/152 ,  H04N1/00 ,  H03D3/00 ,  H04B1/16 ,  H04N1/40

    CPC分类号： H04L27/152 ,  H03D3/241 ,  H04N1/00095

    摘要： FM signals within a predetermined bandwidth represent dark-light variations in a document transmitted over a communications network to a facsimile receiver. Demodulation of the FM signals is accomplished by a phase locked loop comprising a doubly balanced modulator and a voltage controlled oscillator. The fundamental FM frequencies which are applied to the doubly balanced modulator are doubled to permit attenuation of the doubled fundamentals without adversely affecting the high frequency variations in the demodulated signal.

    摘要翻译： 在预定带宽内的FM信号表示通过通信网络传输到传真接收机的文档中的暗光变化。 FM信号的解调由包括双平衡调制器和压控振荡器的锁相环实现。 施加到双平衡调制器的基频FM频率加倍，以允许双倍基波的衰减，而不会对解调信号中的高频变化产生不利影响。

    Solid propellant formulation continuing fluoro-amino compounds and polymers
    39.
    发明授权
    Solid propellant formulation continuing fluoro-amino compounds and polymers 失效
    固体推进剂配方继续使用氟 - 氨基化合物和聚合物

    公开(公告)号：US3857742A

    公开(公告)日：1974-12-31

    申请号：US11113161

    申请日：1961-05-17

    申请人： EXXON RESEARCH ENGINEERING CO

    发明人： BIEBER H ,  SPENADEL L

    IPC分类号： C06B43/00 ,  C06B45/10 ,  C06D5/06

    CPC分类号： C06B43/00 ,  C06B45/10

    摘要： 1. A high-energy composite which on ignition burns at a controlled rate at a specific impulse in the range of 260 to 300 seconds, comprising 2 to 15 wt. percent boron, 5 to 25 wt. percent of a CNF2 oxidizer selected from the group consisting of tetrakis (difluoramino) butane and tetrakis (difluoramino) tetrahydrofuran, 40 to 60 wt. percent of an oxygen oxidizer selected from the group consisting of nitronium perchlorate, hydrazinium nitroformate, hexanitroethane and ammonium perchlorate, and 5 to 30 wt. percent of a solid polymeric binder having the composition of polybutadiene (N2F4) adducts represented by the recurring unit composition in which y represents 1.3 to 2 NF2 groups per recurring unit, the boron being in a 1:1 atomic ratio to fluorine in the composite to form BOF as a main combustion product.

    摘要翻译： 1.一种高能量复合材料，其以点火燃烧的比例为260-300秒的比冲击燃烧，包含2-15wt。 百分比硼，5至25重量％ 选自四（二氟氨基）丁烷和四（二氟氨基）四氢呋喃的CNF2氧化剂的百分比为40至60wt。 选自高氯酸硝铵，硝基甲酸铵，六硝基乙烷和高氯酸铵的氧氧化剂的百分比，以及5-30重量％ 百分比的具有由重复单元组成表示的聚丁二烯（N 2 F 4）加合物的组成的固体聚合物粘合剂，其中y表示每个重复单元的1.3至2个NF 2基团，所述复合材料中的硼与氟的原子比为1：1 形成BOF作为主要燃烧产物。

    Fluid impurity analyzer
    40.
    发明授权
    Fluid impurity analyzer 失效
    流体污染物分析仪

    公开(公告)号：US3856466A

    公开(公告)日：1974-12-24

    申请号：US25008672

    申请日：1972-05-03

    申请人： EXXON RESEARCH ENGINEERING CO

    发明人： CRAWFORD H

    IPC分类号： G01N27/00 ,  G01N33/18 ,  G01N29/02

    CPC分类号： G01N29/036 ,  G01N33/1833 ,  G01N2291/0256 ,  Y10S436/806 ,  Y10T436/21

    摘要： A method and apparatus for determining the quantity of nonsoluble residue in a fluid, such as a water stream, wherein a sample of a water stream is treated with a volatile organic solvent which sorbs the non-soluble residue in an organic phase. A small measured quantity of the organic phase is deposited on a piezoelectric crystal detector electrically connected with an oscillator circuit, whereupon as the solvent evaporates a change in the resonant frequency of the crystal occurs, which change in frequency is directly proportional to the mass of residue present in the fluid.

    摘要翻译： 一种用于确定流体（例如水流）中的非可溶性残留物的量的方法和装置，其中用在有机相中吸附非可溶性残余物的挥发性有机溶剂处理水流样品。 有机相的少量被沉积在与振荡器电路电连接的压电晶体检测器上，随着溶剂蒸发，发生晶体的谐振频率的变化，频率的变化与残留物的质量成正比 存在于流体中。