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5 条记录 (耗时 0.008 秒)

    Acid-curable compositions comprising mixtures of furan and epoxy resins and use in preparing formed, shaped, filled bodies
    2.
    发明授权
    Acid-curable compositions comprising mixtures of furan and epoxy resins and use in preparing formed, shaped, filled bodies 失效
    包含呋喃和环氧树脂的混合物的酸可固化组合物，用于制备形成的，成形的填充体

    公开(公告)号：US4761441A

    公开(公告)日：1988-08-02

    申请号：US750891

    申请日：1985-07-01

    申请人： Wayne D. Woodson

    发明人： Wayne D. Woodson

    IPC分类号： C08L61/00 ,  C08L63/00 ,  C08L71/14 ,  C08K3/36 ,  C08L45/00 ,  C08L71/06

    CPC分类号： C08L63/00 ,  C08L61/00 ,  C08L71/14

    摘要： Acid-curable resin compositions are described which comprise a mixture of a furan resin and a minor amount of an acid-curable epoxy resin. The acid-curable resin compositions may contain other components such as catalysts, solid particulate materials, etc. The procedures for curing such acid-curable resin compositions as well as methods for forming shaped, filled bodies such as sand cores and molds also are described. Sand cores and molds produced in accordance with the method of the invention exhibit good compression strength, good chemical resistance and increase resistance to stress cracking.

    摘要翻译： 描述了包含呋喃树脂和少量可酸固化环氧树脂的混合物的酸可固化树脂组合物。 酸固化树脂组合物可以含有其它成分如催化剂，固体颗粒材料等。用于固化这种酸固化树脂组合物的方法以及用于形成诸如砂芯和模具的成形填充体的方法也被描述。 根据本发明方法生产的砂芯和模具表现出良好的抗压强度，良好的耐化学性和增加的抗应力开裂性。

    Foundry sand mixes with improved bench life for curing with sulfur dioxide or other oxidizable gaseous catalysts
    3.
    发明授权
    Foundry sand mixes with improved bench life for curing with sulfur dioxide or other oxidizable gaseous catalysts 失效
    铸造砂混合物具有改善的工作寿命，可用二氧化硫或其他可氧化气体催化剂固化

    公开(公告)号：US4308191A

    公开(公告)日：1981-12-29

    申请号：US123877

    申请日：1980-02-25

    申请人： Robert H. Fox ,  Roger H. Kottke ,  James E. Menting ,  R. Bruce Sampsell

    发明人： Robert H. Fox ,  Roger H. Kottke ,  James E. Menting ,  R. Bruce Sampsell

    IPC分类号： B22C1/22 ,  B22C9/02 ,  C08K3/32 ,  C08L71/06

    CPC分类号： B22C1/224

    摘要： Foundry sand mixes comprising a mixture of sand, binder, and hydrogen peroxide are improved with respect to bench life by the addition thereto, at the time of initial preparation of the mixture, of non-catalyzing amounts, but stabilizing amounts, of certain iron chelating agents which are acid or salts of acids selected from those which, in their free acid form, have an acidic pH less than 3.0 when dissolved at 1 percent weight per weight in water or when saturated in water, whichever is lower in concentration.

    摘要翻译： 包含砂，粘合剂和过氧化氢的混合物的铸造砂混合物在初始制备混合物时相对于工作台寿命得到改善，非催化量，但稳定量的某些铁螯合 作为酸或酸的盐，选自以游离酸形式在水中以1重量％的重量或当在水中饱和时溶解的酸性pH低于3.0的那些酸，其浓度较低者。

    Production of carbon lining for reduction cells
    4.
    发明授权
    Production of carbon lining for reduction cells 失效
    生产用于还原细胞的碳衬里

    公开(公告)号：US3932244A

    公开(公告)日：1976-01-13

    申请号：US426136

    申请日：1973-12-19

    申请人： Anfinnur Mikkelsen

    发明人： Anfinnur Mikkelsen

    IPC分类号： C04B35/52 ,  C01B31/00 ,  C04B35/532 ,  C25C3/08 ,  C08L71/06 ,  C08L95/00 ,  C25B11/12 ,  C25C3/06

    CPC分类号： C04B35/532 ,  C25C3/08 ,  Y02P10/262

    摘要： In making carbon bodies for lining aluminum reduction cells, an aggregate including carbon recovered from used linings of such cells is mixed with binder material incorporating an alkaline-catalyzable furan binder. Residual contaminant material in the recovered carbon acts as a catalyst for the furan binder, so that the binder-aggregate mixture constitutes a self-hardening carbon lining body.

    摘要翻译： 在制造用于衬里铝还原电池的碳体时，将包含从这种电池的所用衬里回收的碳的骨料与掺入碱性可催化呋喃粘合剂的粘合剂材料混合。 回收碳中的残留污染物质用作呋喃粘合剂的催化剂，使得粘合剂 - 骨料混合物构成自硬化碳衬里体。