Solvent for polystyrene, method for reducing volume of polystyrene foam
and method for recycling polystyrene foam
    1.
    发明授权
    Solvent for polystyrene, method for reducing volume of polystyrene foam and method for recycling polystyrene foam 失效
    聚苯乙烯溶剂,减少聚苯乙烯泡沫体积的方法和回收聚苯乙烯泡沫的方法

    公开(公告)号:US5629352A

    公开(公告)日:1997-05-13

    申请号:US632820

    申请日:1996-04-16

    IPC分类号: C08J3/09 C08J11/08 C08J11/04

    摘要: A solvent for polystyrene, having an excellent dissolving ability and chemical stability with no influence on the operating environment, is disclosed. A relatively simple recycling or reutilizing process of both the polystyrene foam and the solvent is also disclosed. The solvent comprises at least one member selected from the group consisting of such a glycol ether compound as diethylene glycol dimethyl ether, diethylene glycol diethyl ether or dipropylene glycol dimethyl ether, and such a fatty acid dialkyl ester compound as dimethyl succinate, dimethyl glutarate or dimethyl adipate. These compounds have a flash point of 100.degree. C. or higher, and can be made nonflammable by addition of water.

    摘要翻译: 公开了一种聚苯乙烯溶剂,具有优异的溶解性和化学稳定性,对操作环境没有影响。 还公开了聚苯乙烯泡沫和溶剂的相对简单的再循环或再利用方法。 溶剂包含选自二乙二醇醚化合物如二甘醇二甲醚,二甘醇二乙醚或二丙二醇二甲醚中的至少一种,和作为琥珀酸二甲酯,戊二酸二甲酯或二甲基甲酰胺的脂肪酸二烷基酯化合物 己二酸 这些化合物的闪点为100℃以上,并且可以通过加入水而变得不易燃。

    Flux for soft soldering
    2.
    发明授权
    Flux for soft soldering 失效
    软钎焊焊剂

    公开(公告)号:US5817190A

    公开(公告)日:1998-10-06

    申请号:US650747

    申请日:1996-05-20

    IPC分类号: B23K35/36 B23K35/34

    CPC分类号: B23K35/3612 B23K35/3618

    摘要: A flux for soft soldering is disclosed. It comprises a chelating agent as an activator for facilitating a connection of a conductor metal to a soft solder by removing an oxide film naturally formed on the surface of the conductor metal, and for securing insulating reliability after soft soldering by forming complexes with copper and tin which are insulating substance, and a solvent capable of dissolving the chelating agent and further preferably evaporating at soldering process.

    摘要翻译: 公开了用于软焊接的焊剂。 它包括螯合剂作为活化剂,通过去除在导体金属表面上自然形成的氧化膜,并且通过与铜和锡形成络合物来在软焊后确保绝缘可靠性,从而促进导体金属与软焊料的连接 其为绝缘物质,能够溶解螯合剂的溶剂,进一步优选在焊接工序中蒸发。