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    • 1. 发明授权
    • Short duration hot seal for anodized metal surfaces
    • 阳极氧化金属表面短时间热封
    • US5935656A
    • 1999-08-10
    • US51856
    • 1998-04-20
    • Torsten KoernerJosef KresseWolf-Achim RolandJuergen Lindener
    • Torsten KoernerJosef KresseWolf-Achim RolandJuergen Lindener
    • C25D11/24B05D7/14
    • C25D11/246
    • A process for sealing anodized metal surfaces is characterized by bringing the anodized metal into contact with an aqueous solution at a temperature from 75.degree. C. to the boiling point of the solution for a time equal to from 0.5 to 2 minutes per micrometer of anodized layer thickness. The solution contains: a) from 0.0001 to 5 g/l of one or more alkali metal and/or alkaline earth metal ions and b) from 0.0005 to 0.5 g/l of one or more organic acids selected from: polycarboxylic acids with from 3 to 6 carboxyl groups; phosphonic acids; and/or polyphosphinocarboxylic acids, the solution containing a greater amount of metal ions of group a) than is needed to insure complete neutralization of the acids of group b).
    • PCT No.PCT / EP96 / 04373 Sec。 371日期:1998年4月20日 102(e)1998年4月20日PCT PCT 1996年10月9日PCT公布。 出版物WO97 / 14828 日期1997年04月24日阳极氧化金属表面的密封方法的特征在于使阳极氧化金属与水溶液在75℃至沸点的溶液中接触0.5秒至2分钟 每微米阳极氧化层厚度。 溶液含有:a)0.0001至5g / l的一种或多种碱金属和/或碱土金属离子,和b)0.0005至0.5g / l的一种或多种选自以下的有机酸:多羧酸与3 至6个羧基; 膦酸; 和/或多聚磷酸羧酸,该溶液含有更多量的组a.3的金属离子,以确保完全中和组b)的酸。
    • 2. 发明授权
    • Short-term heat-sealing of anodized metal surfaces with
surfactant-containing solutions
    • 阳极氧化金属表面与含表面活性剂溶液的短期热封
    • US6059897A
    • 2000-05-09
    • US194391
    • 1998-11-30
    • Torsten KoernerJosef Kresse
    • Torsten KoernerJosef Kresse
    • C25D11/18C25D11/24C23C22/82
    • C25D11/246
    • Process for post-sealing anodized metal surfaces, characterized in that the anodized metal is contacted with an aqueous solution for a period of between 0.5 and 2 minutes per micrometer of anodized coating thickness, which solution is at a temperature of between 75.degree. C. and its boiling point and has a pH of from 5.5 to 8.5 and which contains:(a) a total of 0.0004 to 0.05 g/l of one or more cationic, anionic or non-ionic surfactants; and(b) a total of 0.0005 to 0.5 g/l of one or more organic acids selected from cyclic polycarboxylic acids having 3 to 6 carboxyl groups and/or phosphonic acids.Non-ionic surfactants are preferred as the surfactants while polyphosphinocarboxylic acids are preferred as the acids. Alkali and/or alkaline earth metal cations, preferably Li and/or Mg ions, are optionally present in quantities of 0.0001 to 5 g/l.
    • PCT No.PCT / EP97 / 02620 Sec。 371日期:1998年11月30日 102(e)1998年11月30日日期PCT提交1997年5月22日PCT公布。 出版物WO97 / 46738 日期1997年12月11日用于后密封阳极氧化金属表面的方法,其特征在于阳极化金属与水溶液接触0.5微米至2分钟/微米阳极氧化涂层厚度,该溶液处于 75℃,其沸点为5.5至8.5,其中含有:(a)总计0.0004至0.05g / l的一种或多种阳离子,阴离子或非离子表面活性剂; 和(b)总共0.0005至0.5g / l的选自具有3至6个羧基和/或膦酸的环状多元羧酸的一种或多种有机酸。 优选非离子表面活性剂作为表面活性剂,而优选聚磷酸羧酸作为酸。 碱金属和/或碱土金属阳离子,优选Li和/或Mg离子任选以0.0001至5g / l的量存在。