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    PASSIVIERUNGS- UND SCHMIERMITTEL FÜR GOLD-, SILBER- UND KUPFEROBERFLÄCHEN UND VERFAHREN ZU SEINER ANWENDUNG
    4.
    发明公开
    PASSIVIERUNGS- UND SCHMIERMITTEL FÜR GOLD-, SILBER- UND KUPFEROBERFLÄCHEN UND VERFAHREN ZU SEINER ANWENDUNG 有权
    钝化和润滑油金，银，铜表面和申请流程。

    公开(公告)号：EP1969157A1

    公开(公告)日：2008-09-17

    申请号：EP06805360.2

    申请日：2006-10-04

    申请人： OTB Oberflächentechnik in Berlin GmbH & Co.

    发明人： LANDAU, Uwe ,  JOLK, Ingo

    IPC分类号： C23F11/16 ,  C10M105/72

    CPC分类号： C23F11/161 ,  C10M173/02 ,  C10M177/00 ,  C10M2207/021 ,  C10M2209/104 ,  C10M2219/082 ,  C10N2220/14 ,  C10N2230/12 ,  C10N2250/121 ,  C10M2209/108

    摘要： Disclosed is a passivator and lubricant for gold, silver, and copper surfaces and corresponding alloy surfaces. Said passivator and lubricant comprises an aqueous emulsion with a linear fatty alcohol as an emulsifier, especially at least one C12-C14 fatty alcohol containing about 8 ethoxy units. Preferably, the concentration of the fatty alcohol amounts to about 25 to 35 g/l. An organic hydrophobic thiol compound, particularly hexadecanethiol and/or octadecanethiol, is dissolved in said aqueous emulsion as an inhibitor at a preferred concentration of about 6 to 12 g/l. In order to prepare said emulsion, the emulsifier is first dissolved in a certain amount of water. Said solution is then thoroughly mixed and is preferably heated to a temperature ranging from about 42 to 49°, whereupon the inhibitor is added. The resulting solution is then further mixed until a uniform milky emulsion is obtained. Silver and copper surfaces that are to be passivated are initially treated with said aqueous emulsion and are then rinsed with water, the temperatures of the emulsion and the water being selected so as to exceed the melting point of the inhibitor.

    SILVER TERNARY ALLOY
    5.
    发明公开
    SILVER TERNARY ALLOY 有权
    银三元合金

    公开(公告)号：EP1631692A1

    公开(公告)日：2006-03-08

    申请号：EP04735594.6

    申请日：2004-06-01

    申请人： Middlesex Silver Co. Limited

    发明人： JOHNS, Peter Gammon

    IPC分类号： C22C5/06

    CPC分类号： C22C5/06 ,  C23F11/16 ,  C23F11/161

    摘要： A firestain and tarnish-resistant ternary alloy of silver, copper and germanium contains from more than 93.5 wt% to 95.5 wt% Ag, from 0.5 to 3 wt% Ge and the remainder, apart from incidental ingredients (if any), impurities and grain refiner, copper. In order to further protect an article made from the alloy, it may be surface treated with an alkanethiol, alkyl thioglycollate, dialkyl sulphide or dialkyl disulphide.

    摘要翻译： 银，铜和锗的耐火和耐晦暗的三元合金含有大于93.5重量％至95.5重量％的Ag，0.5至3重量％的Ge，并且除了附带的成分（如果有的话）之外，还含有杂质和颗粒 炼油厂，铜。 为了进一步保护由合金制成的制品，可以用烷硫醇，巯基乙酸烷基酯，二烷基硫化物或二烷基二硫化物对其进行表面处理。

    ENHANCING SILVER TARNISH-RESISTANCE
    6.
    发明公开
    ENHANCING SILVER TARNISH-RESISTANCE 审中-公开
    改善银的起动阻力

    公开(公告)号：EP1611267A1

    公开(公告)日：2006-01-04

    申请号：EP04724313.4

    申请日：2004-03-30

    申请人： Middlesex Silver Co. Limited

    发明人： JOHNS, Peter, Gamon ,  HARRISON, Clare, Elizabeth

    IPC分类号： C23F11/16

    CPC分类号： C23F11/161 ,  C23F11/16

    摘要： An alkanethiol, alkyl thioglycollate, dialkyl sulfide or dialkyl disulfide may be used to surface treat of an alloy of silver containing an amount of germanium that is effective to reduce firestain and/or tarnishing. The treatment has been found to further reduce tarnishing of the alloy such that a sample can be supported close above a 20% solution of ammonium polysulphide for at least 30 minutes while retaining a generally untarnished appearance. The treatment may be carried out at the end of manufacturing a shaped article to give rise to an article that will preserve its untarnished appearance both during transit to a point of sale but during subsequent display for an extended period. The invention therefore also includes a method for manufacturing a tarnish-resistant silver article, which comprises the steps of forming a shaped article of an alloy of silver containing an amount of germanium that is effective to reduce firestain and/or tarnishing, surface treating the article with an alkanethiol, alkyl thioglycollate, dialkyl sulphide or dialkyl disulphide; and introducing the article into packaging. Also disclosed for use in treating an alloy of silver as aforesaid is a water-based composition comprising a treatment agent selected from an alkanethiol, alkyl thioglycollate, dialkyl sulfide or dialkyl disulfide and a mixture of an anionic surfactant and an amphoteric or nonionic surfactant in a concentration that is effective to solubilise the treatment agent.

    Coating for inhibiting oxidation of a substrate
    7.
    发明公开
    Coating for inhibiting oxidation of a substrate 有权
    Beschichtung zur Oxidationshemmung eines Substrats

    公开(公告)号：EP1382721A1

    公开(公告)日：2004-01-21

    申请号：EP03014489.3

    申请日：2003-07-02

    申请人： The Boeing Company

    发明人： Kendig, Martin W. ,  Hon, Melitta ,  Warren, Leslie

    IPC分类号： C23F11/16 ,  C09D5/08

    CPC分类号： C23F11/161 ,  C09D5/08 ,  C23F11/165 ,  Y10T428/31504

    摘要： A film (11) which may be placed on a metallic substrate (12) to inhibit corrosion of the substrate when in a corrosive environment. The film (11) also inhibits corrosion at a defect area (18) in the film (11) when the substrate (12) is exposed in the presence of a corrosive environment. The film (11) includes dopants (26) which release from the film (11) when corrosion begins at a film defect. Therefore, the film not only inhibits corrosion where the film is undamaged, but also inhibits corrosion at the site of a defect in the film. Advantageously, the system does not lose its effectiveness over a given period of time if no defect occurs in the substrate (Fig. 1).

    摘要翻译： 可以放置在金属基底（12）上以在腐蚀环境中抑制基底腐蚀的薄膜（11）。 当在腐蚀性环境的存在下暴露基板（12）时，膜（11）还抑制膜（11）中的缺陷区域（18）的腐蚀。 膜（11）包括当在膜缺陷处开始腐蚀时从膜（11）释放的掺杂剂（26）。 因此，该膜不仅抑制膜未损伤的腐蚀，而且抑制膜的缺陷部位的腐蚀。 有利地，如果在衬底中没有发生缺陷，系统在给定的时间段内不会失去其有效性（图1）。