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    • 5. 发明授权
    • Flux composition and soldering method for high density arrays
    • 高密度阵列的焊剂组成和焊接方法
    • US06550667B2
    • 2003-04-22
    • US09726697
    • 2000-11-29
    • William E. BernierDonald W. HendersonJames Spalik
    • William E. BernierDonald W. HendersonJames Spalik
    • B23K35362
    • B23K35/3618B23K35/3612B23K35/3617H05K3/3489
    • A single phase flux composition suitable for use with high density arrays, that comprises dicarboxylic acid in an amount sufficient to react with the oxidized surface area in a high-density array, a first organic solvent, and a second organic solvent having a higher evaporation temperature than that of said first organic solvent. Preferred dicarboxylic acids are adipic, pimelic, suberic, azelaic and sebacic acids. Preferably, the composition comprises greater than 6% dicarboxylic acid, more preferably greater that 6% to about 15%, and even more preferably from about 8% to about 10% of the dicarboxylic acid. Preferred amounts of the first organic solvent are in the range of from about 25% to about 75% by weight and preferred amounts of the second organic solvent are from about 10% to about 35% by weight. Preferably, the ratio of the first organic solvent to the second organic solvent is about 3:1. A method for using the inventive composition to solder high density arrays which, for eutectic lead/tin solder, involves heating at extended dwell times and high temperature relative to typical compositions.
    • 适用于高密度阵列的单相通量组合物,其包含足以与高密度阵列中的氧化表面积反应的二羧酸,第一有机溶剂和具有较高蒸发温度的第二有机溶剂 比所述第一有机溶剂的。 优选的二羧酸是己二酸,庚二酸,辛二酸,壬二酸和癸二酸。 优选地,组合物包含大于6%的二羧酸,更优选大于6%至约15%,甚至更优选约8%至约10%的二羧酸。 第一有机溶剂的优选量为约25重量%至约75重量%,优选的第二有机溶剂的量为约10重量%至约35重量%。 优选地,第一有机溶剂与第二有机溶剂的比例为约3:1。 使用本发明组合物来焊接高密度阵列的方法,对于共晶铅/锡焊料,其涉及相对于典型组合物在延长的停留时间和高温下加热。
    • 8. 发明申请
    • Pulpstone for Long Fiber Pulp Production
    • 长纤维纸浆生产纸浆
    • US20080250725A1
    • 2008-10-16
    • US12100084
    • 2008-04-09
    • Glen A. SmithWilliam E. Bernier
    • Glen A. SmithWilliam E. Bernier
    • C09K3/14
    • B24D5/06C09K3/1409D21B1/063
    • Pulp production techniques are disclosed. In one embodiment, pulpstone segments are provided, that include proppant grits in the place of some or all of the conventional abrasive typically used in pulpstone applications. The proppant or proppant-abrasive mixture can be combined into a three-dimensional matrix supported by a vitrified bond. Alternative embodiments use proppant grits in an organic bond or a metal bond or a cement bond (each of which may also include abrasive grits in addition to proppant grits). The proportion of proppant grits to abrasive grits can be varied to produce pulp of varying fiber length distribution as required by the end-user (e.g., paper mill). The greater the proppant concentration, the less cutting of the fibers by the conventional abrasive will occur, producing a greater percentage content of longer fibers. Such pulp produces higher quality paper.
    • 公布了纸浆生产技术。 在一个实施例中,提供了纸浆段,其包括支撑剂砂粒代替通常用于纸浆应用中的一些或全部常规磨料。 支撑剂或支撑剂 - 研磨剂混合物可以组合成由玻璃化键支撑的三维基质。 替代实施例使用有机粘结剂或金属粘结剂或粘结剂粘合剂中的支撑剂砂砾(除了支撑剂砂砾之外,每种也可包括磨料砂粒)。 可以改变支撑剂砂粒对磨料砂粒的比例,以产生根据最终用户(例如造纸厂)所要求的不同纤维长度分布的纸浆。 支撑剂浓度越大,将会发生常规研磨剂对纤维的切割越少,从而产生更长的纤维含量。 这样的纸浆产生更高质量的纸张。