Epoxy resin-basin composite material
    84.
    发明授权
    Epoxy resin-basin composite material 失效
    环氧树脂基复合材料

    公开(公告)号:US5439746A

    公开(公告)日:1995-08-08

    申请号:US215972

    申请日:1994-03-18

    申请人: Shuichi Suzuki

    发明人: Shuichi Suzuki

    IPC分类号: C08L63/00 B32B17/10 C08F2/46

    摘要: Disclosed is an epoxy resin-based composite material formed by coating or impregnating a sheet-like reinforcement with an epoxy resin composition, followed by curing the resin composition. The epoxy resin composition comprises a compound having at least one epoxy group, a compound having an active hydrogen, a silicon compound having or generating hydroxy group bonded to silicon atom, and an organometallic compound. The epoxy resin may further comprise a maleimide compound or a powdery and granular material and a short fiber. The composite material ensures the properties of the epoxy resin material in terms of the mechanical strength, corrosion resistance, heat resistance and electrical properties. Besides, the composite material exhibits excellent crack resistance and impact resistance. Further, the epoxy resin composition contained in the composite material exhibits sufficient curing characteristics and, thus, the operation for forming the composite material is facilitated.

    摘要翻译: 公开了一种通过用环氧树脂组合物涂覆或浸渍片状增强物形成的环氧树脂基复合材料,然后使树脂组合物固化。 环氧树脂组合物包含具有至少一个环氧基的化合物,具有活性氢的化合物,具有或产生与硅原子键合的羟基的硅化合物和有机金属化合物。 环氧树脂还可以包含马来酰亚胺化合物或粉末状颗粒材料和短纤维。 复合材料在机械强度,耐腐蚀性,耐热性和电气性能方面确保环氧树脂材料的性能。 此外,复合材料具有优异的抗裂性和抗冲击性。 此外,复合材料中所含的环氧树脂组合物显示出足够的固化特性,因此有助于形成复合材料的操作。

    Photo-curable epoxy resin type composition
    85.
    发明授权
    Photo-curable epoxy resin type composition 失效
    光固化型环氧树脂型组合物

    公开(公告)号:US4975471A

    公开(公告)日:1990-12-04

    申请号:US240378

    申请日:1988-08-29

    摘要: A photo-curable epoxy resin type composition which comprises (a) an epoxy resin, (b) at least one compound selected from the group consisting of (i) a compound having a group, other than an imido group, which is represented by the formula --CONH and (ii) an aromatic amine, (c) an organic metal compound, where said metal is selected from the group consisting of titanium, vanadium, chromium, manganese, iron, cobalt, nickel, copper, zinc, aluminum and zirconium; and (d) an organic silicon compound having at least one group selected from the group consisting of a peroxysilyl group and an o-nitrobenzyloxy group capable of forming a silanol group by irradiation with light. The photo-curable epoxy resin type composition according to this invention is capable of readily curing by light (ultraviolet ray in particular) and also capable of heat curing at a temperature of 150.degree. C. or more, and yet provides a cured product that is free of ionic impurities, does not corrode metallic materials which may be in contact with the composition, and displays excellent electrical properties.

    摘要翻译: 一种光固化型环氧树脂型组合物,其包含(a)环氧树脂,(b)至少一种选自(i)除了亚氨基以外的基团的化合物的化合物,所述化合物由 式(Ⅷ)和(ⅱ)芳族胺,(c)有机金属化合物,其中所述金属选自钛,钒,铬,锰,铁,钴,镍,铜,锌,铝和锆 ; 和(d)具有至少一个选自由光照射形成硅烷醇基的过氧甲硅烷基和邻硝基苄氧基的基团的有机硅化合物。 本发明的光固化型环氧树脂类组合物能够容易地通过光(特别是紫外线)固化,也能够在150℃以上的温度下进行热固化,还可以提供固化物 不含离子杂质,不会腐蚀可能与组合物接触的金属材料,并且显示出优异的电性能。

    Method for determining biochemical oxygen demand
    86.
    发明授权
    Method for determining biochemical oxygen demand 失效
    确定生化需氧量的方法

    公开(公告)号:US4350763A

    公开(公告)日:1982-09-21

    申请号:US138121

    申请日:1980-04-07

    IPC分类号: G01N33/18

    CPC分类号: G01N33/1806 Y10S435/817

    摘要: The biochemical oxygen demand (BOD) of an aqueous liquid contaminated with organic matter is determined by contacting a sample solution with elementary oxygen and with immobilized microorganisms capable of aerobically metabolizing the organic matter and of thereby consuming the oxygen. The rate of oxygen consumption under otherwise uniform conditions is as precise a measure of BOD as the conventional five-day test, but is determined within less than two hours, usually less than 30 minutes. A membrane-type oxygen-sensitive electrode is employed for sensing the rate of oxygen consumption and generates an output signal which is readily correlated with the BOD of the tested liquid.

    摘要翻译: 用有机物质污染的含水液体的生物化学需氧量(BOD)是通过使样品溶液与基本氧接触的固体微生物和能够有机代谢有机物质并从而消耗氧气的固定化微生物来确定的。 在其他均匀条件下的氧消耗速率与常规五天试验一样精确地测量BOD,但是在不到两小时,通常少于30分钟内测定。 使用膜式氧敏电极来感测氧消耗的速率,并产生容易与被测液体的BOD相关的输出信号。

    Method for determining ammonia and sensor therefor
    88.
    发明授权
    Method for determining ammonia and sensor therefor 失效
    氨和传感器的测定方法

    公开(公告)号:US4297173A

    公开(公告)日:1981-10-27

    申请号:US152177

    申请日:1980-05-22

    IPC分类号: C12Q1/00 C12Q1/12 G01N27/30

    摘要: The concentration of ammonia in an aqueous liquid is determined by contacting a sample of the liquid with dissolved oxygen and with a microbial electrode comprising an oxygen-sensitive electrode, a porous membrane, and nitrifying bacteria confined or immobilised by the membrane which are in direct or close contact with the diaphragm of the electrode. The rate of oxygen consumption under otherwise uniform conditions is as precise a measure of concentration of ammonia as a conventional colorimetric method and distillation-titration method.

    摘要翻译: 通过使液体样品与溶解的氧接触并与包含氧敏电极,多孔膜和由膜限制或固定的硝化细菌的微生物电极来测定氨在水中的浓度,所述微生物电极直接或 与电极的隔膜紧密接触。 在其他均匀条件下的氧消耗速率与常规比色法和蒸馏滴定法精确测量氨浓度。