POROUS COPPER POWDER MODIFIED FRICTION MATERIAL
    71.
    发明申请
    POROUS COPPER POWDER MODIFIED FRICTION MATERIAL 审中-公开
    多孔铜粉改性摩擦材料

    公开(公告)号:WO1994027058A1

    公开(公告)日:1994-11-24

    申请号:PCT/US1994004601

    申请日:1994-04-26

    Abstract: Friction material pads for use in a brake system with an aluminum-metal matrix composite rotor wherein a brake application can create operational temperatures that approach 450 DEG C. The formulation of the composition for the friction pads is generically a basic non-asbestos organic formula modified to include a high abrasive content, solid lubricant package, and a porous copper powder. The porous copper powder which makes up from 2-18 percent by weight the friction pads has a nominal diameter of 0.20 mm. The porous copper powder proportionally responds to temperature and mechanical forces generated during a brake application by deforming and smearing to aid in the formation of a glaze between the engaging surfaces of the friction pads and aluminum-metal matrix composite rotor. This glaze prevents scoring of the aluminum-based rotor while at the same time maintaining a substantial stable coefficient of friction of approximately 0.6 during brake applications over a wide range of speeds and deceleration rates.

    Abstract translation: 用于具有铝 - 金属基复合材料转子的制动系统的摩擦材料垫,其中制动应用可以产生接近450℃的操作温度。用于摩擦垫的组合物的配方通常是基本的非石棉有机配方改性的 包括高磨料含量,固体润滑剂包装和多孔铜粉末。 由摩擦垫组成的2-18重量%的多孔铜粉末的公称直径为0.20毫米。 多孔铜粉通过变形和涂抹成比例地响应在制动施加期间产生的温度和机械力,以帮助在摩擦垫的接合表面和铝 - 金属基质复合转子之间形成釉。 这种釉料防止了铝基转子的刻痕,同时在宽范围的速度和减速率下,在制动应用中保持大约0.6的基本稳定的摩擦系数。

    PROCESS FOR SEPARATING ARSENIC ACID FROM AN AQUEOUS MIXTURE COMPRISING SULFURIC AND ARSENIC ACIDS
    72.
    发明申请
    PROCESS FOR SEPARATING ARSENIC ACID FROM AN AQUEOUS MIXTURE COMPRISING SULFURIC AND ARSENIC ACIDS 审中-公开
    从含有硫酸和酸性酸的水性混合物中分离出亚油酸的方法

    公开(公告)号:WO1994024051A1

    公开(公告)日:1994-10-27

    申请号:PCT/US1994003870

    申请日:1994-04-08

    CPC classification number: C01G28/005 C01B17/907

    Abstract: The present invention provides a process for recovering arsenic acid from a starting mixture comprising sulfuric and arsenic acids and water. In step (a), the starting mixture is treated with a sulfur (IV) compound which will reduce the arsenic acid to arsenic (III) compound under conditions sufficient to substantially convert the arsenic acid to arsenic (III) wherein the resulting mixture comprises arsenic (III) compound, the sulfur (IV) compound, sulfuric acid, and water. In step (b), the resulting mixture is purged with inert gas to substantially remove the sulfur (IV) compound from the mixture wherein the purged mixture comprises the arsenic (III) compounds, sulfuric acid, and water. In step (c), the purged mixture is treated under conditions sufficient to substantially separate the arsenic (III) compounds from the purged mixture. In step (d), the separated arsenic (III) compound is reacted with an oxidizing agent to substantially convert arsenic (III) compound to arsenic acid wherein the final mixture comprises arsenic acid, unreacted oxidizing agent, and water. In step (e), impurities are removed from the final mixture to provide substantially pure aqueous arsenic acid. The recovered arsenic acid may be used for example as a raw material for the production of CCA wood preservative. The purged mixture which is sulfuric acid may be reused for example in the process of commonly assigned U.S. Patent 5,089,241.

    Abstract translation: 本发明提供从包含硫酸和砷酸和水的起始混合物中回收砷酸的方法。 在步骤(a)中,起始混合物用硫(IV)化合物处理,其将在足以将砷酸基本转化为砷(III)的条件下将砷酸还原为砷(III)化合物,其中所得混合物包含砷 (III)化合物,硫(IV)化合物,硫酸和水。 在步骤(b)中,将所得混合物用惰性气体吹扫,以从混合物中基本上除去硫(IV)化合物,其中清除的混合物包含砷(III)化合物,硫酸和水。 在步骤(c)中,将清洗的混合物在足以使砷(III)化合物与清洗的混合物基本分离的条件下进行处理。 在步骤(d)中,将分离的砷(III)化合物与氧化剂反应以将砷(III)化合物基本上转化为砷,其中最终混合物包含砷酸,未反应的氧化剂和水。 在步骤(e)中,从最终混合物中除去杂质以提供基本上纯的含水砷酸。 回收的砷酸可以例如用作生产CCA木材防腐剂的原料。 作为硫酸的吹扫的混合物可以例如在共同转让的美国专利5,089,241的过程中重复使用。

    POLYMERS EXHIBITING NONLINEAR OPTICAL PROPERTIES
    74.
    发明申请
    POLYMERS EXHIBITING NONLINEAR OPTICAL PROPERTIES 审中-公开
    聚合物展示非线性光学性质

    公开(公告)号:WO1994020881A1

    公开(公告)日:1994-09-15

    申请号:PCT/US1994002424

    申请日:1994-03-07

    Abstract: This invention relates to polymers having non-linear optical properties which polymers include fluorene moieties having at least one electron accepting group and at least one electron donating group substituted to different phenyl rings of the fluorene moiety (I), wherein: A is an electron withdrawing substituent; D is an electron donating substituent; R and R are the same or different and are divalent conjugated organic or inorganic moiety; m, n and p are the same or different at each occurrence and are integers from 1 to 4 wherein the sum of p and n, as well as the sum of p and m, is equal to 4; k and o are the same or different at each occurrence and are integers from 1 to 5 wherein the sum of k and o is equal to 5; i and j are the same or different and are 0 or an integer from 1 to 5; R is the same or different at each occurrence and is any substituent which does not adversely affect the non-linear optical properties of the polymer unduly; x and y are the same or different and are 0 or an integer from 1 to about 10; T and Z chosen to have general structures of polyesters, polycarbonates, polyamides, polyethers, polyurethanes, polyimides, epoxyresins.

    Abstract translation: 本发明涉及具有非线性光学性质的聚合物,该聚合物包括具有至少一个电子接受基团的芴部分和至少一个被芴部分(I)的不同苯环取代的给电子基团,其中:A是吸电子 取代基; D是给电子取代基; R 1和R 2相同或不同,为二价共轭有机或无机部分; m,n和p在每次出现时相同或不同,为1〜4的整数,其中p和n之和以及p和m之和等于4; k和o在每次出现时相同或不同,并且是1至5的整数,其中k和o的和等于5; i和j相同或不同,为0或1至5的整数; R 3在每次出现时相同或不同,是不适当地不利地影响聚合物的非线性光学性质的任何取代基; x和y相同或不同,为0或1〜10的整数; 选择T和Z具有聚酯,聚碳酸酯,聚酰胺,聚醚,聚氨酯,聚酰亚胺,环氧树脂的一般结构。

    COMPOSITES HAVING IMPROVED PENETRATION RESISTANCE
    75.
    发明申请
    COMPOSITES HAVING IMPROVED PENETRATION RESISTANCE 审中-公开
    具有改善渗透电阻的复合材料

    公开(公告)号:WO1994019660A1

    公开(公告)日:1994-09-01

    申请号:PCT/US1994001648

    申请日:1994-02-15

    CPC classification number: F41H5/0464

    Abstract: An improved flexible composite of manufacture especially suitable for use as a ballistic resistant body armor, said improved penetration resistant composite of the type comprising at least two penetration resistant layers, each layer comprising a flexible fibrous substrate comprising a fibrous network having a plurality of penetration resistant elements on a surface thereof, wherein at least one of the inner layers further comprising a fibrous element comprising fibrous network positioned between said substrate and said penetration resistance element.

    Abstract translation: 一种改进的制造的柔性复合材料,特别适合用作防弹体装甲,所述改进的耐渗透复合材料包括至少两个耐渗透层,每层包括柔性纤维基材,该柔性纤维基材包括具有多个耐渗透性的纤维网 其中至少一个所述内层还包括纤维状元件,所述纤维元件包括位于所述基底和所述穿透阻力元件之间的纤维网状物。

    PREPARATION OF DEVICES THAT INCLUDE A THIN CERAMIC LAYER
    76.
    发明申请
    PREPARATION OF DEVICES THAT INCLUDE A THIN CERAMIC LAYER 审中-公开
    包括一个薄陶瓷层的器件的制备

    公开(公告)号:WO1994016887A1

    公开(公告)日:1994-08-04

    申请号:PCT/US1994000548

    申请日:1994-01-18

    Abstract: A device having a thin ceramic layer (204) therein, is made by preparing a mixture of ceramic particles, a binder, and a plasticizer, and forming the mixture into a ceramic layer (204). A second layer (206) is placed adjacent to the ceramic layer (204) to form a composite layered structure. The thickness of the composite layered structure is reduced, preferably by rolling, until the ceramic layer portion (204) of the composite layered structure has a preselected small thickness. If desired, the thickness of the ceramic layer (204) can be reduced to an arbitrarily small value by stacking the reduced composite layered structures (or one of the layered structures with another structure) and repeating the reducing operation on the stack. The ceramic layer (204) having the preselected thickness is assembled into a device (214). Devices that can be prepared by this approach, for example, multilayer capacitors, solid oxide fuel cells, and solid-electrolyte electrochemical storage cells.

    Abstract translation: 通过制备陶瓷颗粒,粘合剂和增塑剂的混合物制成其中具有薄陶瓷层(204)的装置,并将该混合物形成陶瓷层(204)。 邻近陶瓷层(204)放置第二层(206)以形成复合层状结构。 复合层状结构的厚度优选通过轧制而减小,直到复合层状结构的陶瓷层部分(204)具有预定的小厚度。 如果需要,通过将还原的复合分层结构(或其他结构的层叠结构之一)堆叠在堆叠上并重复减少操作,可以将陶瓷层(204)的厚度减小到任意小的值。 具有预选厚度的陶瓷层(204)组装成装置(214)。 可以通过该方法制备的装置,例如,多层电容器,固体氧化物燃料电池和固体电解质电化学存储电池。

    VIBRATING BEAM ACCELEROMETER AND METHOD FOR MANUFACTURING THE SAME
    78.
    发明申请
    VIBRATING BEAM ACCELEROMETER AND METHOD FOR MANUFACTURING THE SAME 审中-公开
    振动梁加速度计及其制造方法

    公开(公告)号:WO1999027373A1

    公开(公告)日:1999-06-03

    申请号:PCT/US1997021597

    申请日:1997-11-25

    CPC classification number: G01P15/097 G01P15/0802 G01P2015/0828

    Abstract: An accelerometer (2) formed from a semiconducting substrate (32) and first (31) and second (33) active layers coupled to the opposite surfaces (27, 29) of the substrate (32). The substrate (32) has a frame (4, 6, 8) and a proof mass (18) suspended from the frame (8) by one or more flexures (14, 16) for rotation about an input axis (20) in response to an applied force. The active layers (31, 33) each include a vibratory force transducer (22, 24) mechanically coupled to the proof mass (18) for detecting a force applied to the proof mass (18). With this configuration, the transducers (22, 24) are located on either side of the substrate (32), which improves the differential design symmetry of the force detecting apparatus. This reduces the common mode non-linear response characteristics of the accelerometer (2), particularly in high dynamics applications, where high performance is required.

    Abstract translation: 由半导体衬底(32)和耦合到衬底(32)的相对表面(27,29)的第一(31)和第二(33)有源层形成的加速度计(2)。 衬底(32)具有框架(4,6,8)和通过用于响应于输入轴线(20)旋转的一个或多个挠曲件(14,16)从框架(8)悬挂的检测质量块(18) 施加力量。 有源层(31,33)各自包括机械耦合到检测质量块(18)的振动力传感器(22,24),用于检测施加到检验质量块(18)的力。 通过这种构造,换能器(22,24)位于基板(32)的两侧,这改善了力检测装置的差分设计对称性。 这降低了加速度计(2)的共模非线性响应特性,特别是在需要高性能的高动态应用中。

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