Process for forming a mixed solvent adhesive solution
    7.
    发明申请
    Process for forming a mixed solvent adhesive solution 失效
    形成混合溶剂粘合剂溶液的方法

    公开(公告)号:US20030015690A1

    公开(公告)日:2003-01-23

    申请号:US09897275

    申请日:2001-07-03

    申请人: Xerox Corporation

    摘要: A process for preparing a mixed solvent adhesive solution involving mixing an alcohol and an adhesive to form an adhesive solution; mixing a charge transporting molecule and a solvent other than alcohol to form a charge transport solution; mixing the charge transport solution with the adhesive solution to form a mixed solvent solution; mixing an electrically conductive filler and a solvent to form a filled solvent solution; and mixing the filled solvent solution to the mixed solvent solution so as to form a mixed solvent adhesive solution.

    摘要翻译: 一种制备混合溶剂粘合剂溶液的方法,包括混合醇和粘合剂以形成粘合剂溶液; 混合电荷输送分子和醇以外的溶剂形成电荷输送溶液; 将电荷输送溶液与粘合剂溶液混合以形成混合溶剂溶液; 混合导电填料和溶剂以形成填充的溶剂溶液; 并将填充的溶剂溶液与混合溶剂溶液混合,以形成混合溶剂粘合剂溶液。

    PTC element and process for producing the same
    8.
    发明授权
    PTC element and process for producing the same 失效
    PTC元件及其制造方法

    公开(公告)号:US5817423A

    公开(公告)日:1998-10-06

    申请号:US607636

    申请日:1996-02-27

    摘要: A PTC element comprising a conductive sheet of a crystalline polyolefin matrix and a conductive filler, having provided on both sides thereof an electrode of a metallic foil, the PTC element having a resistivity at 20.degree. C. (.rho..sub.20) of not more than 1.8 .OMEGA..multidot.cm, a peak resistivity (.rho..sub.p) of not less than 2.0.times.10.sup.6 .OMEGA..multidot.cm, and a temperature difference �T.sub.a (0.degree.C.)-T.sub.b (.degree.C.)! of not greater than 10.degree. C., wherein T.sub.a (.degree.C.) is a temperature at which the resistivity is 10.sup.6 times the resistivity at 20.degree. C. (.rho..sub.20) and T.sub.b (.degree.C.) is a temperature at which the resistivity is 10 times the resistivity at 20.degree. C. (.rho..sub.20). The PTC element is produced by a process comprising mixing a crystalline polyolefin and a conductive filler, molding the mixture into a conductive sheet, press bonding under heat a metallic foil to both sides of the conductive sheet, and repeatedly subjecting the conductive sheet to a heating and cooling cycle consisting of heating at a temperature of not lower than (the melting point of the crystalline polyolefin minus 5.degree. C.) and then cooling to a temperature lower than (the melting point of the crystalline polyolefin minus 5.degree. C.). The PTC elements exhibit an extremely low resistivity at 20.degree. C. and a high resistivity at a peak temperature, showing a very steep increase in resistance in a narrow temperature range.

    摘要翻译: 一种PTC元件,包括结晶聚烯烃基质和导电填料的导电片,其两侧均设有金属箔的电极,PTC元件的电阻率在20℃(rho 20)不大于1.8 OMEGA xcm,峰值电阻率(rho p)不小于2.0×10 6欧姆×xcm,温度差[Ta(0℃)-Tb(℃)]为10℃以下,其中Ta (℃)是电阻率为20℃时电阻率的106倍的温度(rho 20),Tb(℃)是电阻率为20℃电阻率10倍的温度。 (rho 20)。 PTC元件通过包括混合结晶聚烯烃和导电填料的方法制备,将该混合物成型为导电片,在导热片的两侧将金属箔加热压接,并重复地对导电片进行加热 和冷却循环由不低于(结晶聚烯烃的熔点减去5℃)的温度加热,然后冷却到低于(结晶聚烯烃的熔点减去5℃)的温度。 PTC元件在20℃下表现出非常低的电阻率,在峰值温度下表现出高电阻率,表现出在窄温度范围内电阻非常陡峭的增加。