Process for dyeing anodized aluminum
    1.
    发明授权
    Process for dyeing anodized aluminum 失效
    用于染色阳极氧化铝的方法

    公开(公告)号:US5064512A

    公开(公告)日:1991-11-12

    申请号:US382166

    申请日:1989-07-19

    IPC分类号: C25D11/12 C25D11/22

    CPC分类号: C25D11/22

    摘要: Substituted diphenols, phenyl ethers containing two oxygen atoms attached to a benzene nucleus, and naphthols are more practically effective than previously known additives in stabilizing tin (II) salts, in electrolyte solutions useful for coloring anodized aluminum by electrolysis therein, against oxidation to tin(IV) by reaction with ambient oxygen. Preferred additives include 2-tert-butyl-1,4-dihydroxybenzene, methylhydroquinone, trimethylhydroquinone, 4-hydroxynaphthalene-2,7-disulfonic acid, and p-hydroxyanisole. If p-toluenesulfonic acid or napthalene sulfonic acid are also used in the electrolyte, the throwing power can be greatly improved.

    摘要翻译: 取代的二酚,含有连接到苯核上的两个氧原子的苯基醚和萘酚比以前已知的用于稳定锡(II)盐的添加剂更有效,在用于通过电解使阳极氧化的铝着色的电解质溶液中,氧化成锡( IV)通过与环境氧反应。 优选的添加剂包括2-叔丁基-1,4-二羟基苯,甲基氢醌,三甲基氢醌,4-羟基萘-2,7-二磺酸和对羟基苯甲醚。 如果在电解质中也使用对甲苯磺酸或萘磺酸,则可大大提高投掷力。

    Method for electrolytic coloring of aluminum surfaces using alternating
current
    2.
    发明授权
    Method for electrolytic coloring of aluminum surfaces using alternating current 失效
    使用交流电的铝表面电解着色方法

    公开(公告)号:US5587063A

    公开(公告)日:1996-12-24

    申请号:US464702

    申请日:1995-07-28

    IPC分类号: C25D11/22

    CPC分类号: C25D11/22

    摘要: Anodized aluminum surfaces are electrolytically colored using alternating current in a process in which two different coloring baths are sequentially employed. One bath contains copper(II) ions and an additive which improves throwing power thereby providing uniform distribution of the depth of color. The other bath contains tin(II) ions, silver ions, or both tin(II) and silver ions. If tin(II) ions are included, additives which stabilize tin(II) ions and improve throwing power are also included. Either bath may be used first. The use of two separate coloring baths provides colored aluminum surfaces which have excellent resistance to corrosion. Workpieces with reddish-gold hues and darker tones can be produced.

    摘要翻译: PCT No.PCT / EP93 / 03574 371日期:1995年7月28日 102(e)日期1995年7月28日PCT 1993年12月16日PCT公布。 公开号WO94 / 日期1994年7月7日在连续使用两个不同着色浴的工艺中,使用交流电转化了铝表面。 一个浴包含铜(II)离子和添加剂,其改善投掷力,从而提供颜色深度的均匀分布。 另一个浴包含锡(II)离子,银离子或锡(II)和银离子两者。 如果包含锡(II)离子,还包括稳定锡(II)离子和提高投掷功率的添加剂。 可以先使用浴缸。 使用两个独立的着色浴提供了具有优异耐腐蚀性的彩色铝表面。 可以制作具有红色金色调和深色调的工件。

    Dilutable aluminum triformate tanning agents in the form of highly
concentrated, storable aqueous solutions and their use
    3.
    发明授权
    Dilutable aluminum triformate tanning agents in the form of highly concentrated, storable aqueous solutions and their use 失效
    以高度浓缩,可储存的水溶液形式的可稀释的三甲酸铝鞣剂及其用途

    公开(公告)号:US5409501A

    公开(公告)日:1995-04-25

    申请号:US182009

    申请日:1994-03-14

    IPC分类号: C14C3/04 C14C11/00

    CPC分类号: C14C11/00 C14C3/04

    摘要: Described is the use of at least substantially storage-stable supersaturated and acidified aqueous solutions of mixtures of aluminum triformate and alkali-metal and/or alkaline-earth formates as a means of supplying a water-dissolved mineral tanning agent based on aluminum formate for the tanning of leather and/or hides using little or no chromium. The invention thus concerns, in particular, storage-stabilized supersaturated and acidified aqueous solutions of this kind which also contain small quantities of stabilizers, preferred stabilizers being 1,2,3,4-butanetetracarboxylic acid and/or xanthane gum. The invention also concerns the use of such stabilized supersaturated aqueous forms of aluminum triformate solutions for use as tanning auxiliaries with a fixing and/or tanning action in the tanning or finishing of leather and hides.

    摘要翻译: PCT No.PCT / EP92 / 01518 Sec。 371日期:1994年3月14日 102(e)1994年3月14日PCT PCT 1992年7月6日PCT公布。 出版物WO93 / 02218 日期:1993年2月4日。描述了使用至少基本上储存稳定的过饱和和酸化的三甲酸铝和碱金属和/或碱土金属盐混合物的水溶液作为供应水溶性矿物鞣制的方法 基于甲酸铝的试剂,用于使用很少或不含铬的皮革和/或皮革的鞣制。 因此,本发明尤其涉及这种也含有少量稳定剂的储存稳定的过饱和和酸化水溶液,优选的稳定剂是1,2,3,4-丁烷四羧酸和/或黄原胶。 本发明还涉及这种稳定的过饱和水性形式的三甲酸铝溶液用作鞣制助剂,在皮革和皮革的鞣制或整理中具有固定和/或鞣制作用。

    Electrodeposition Material, Process for Providing a Corrosion-Protective Layer of TiO2 on an Electrically Conductive Substrate and Metal Substrate Coated with a Layer of TiO2
    5.
    发明申请
    Electrodeposition Material, Process for Providing a Corrosion-Protective Layer of TiO2 on an Electrically Conductive Substrate and Metal Substrate Coated with a Layer of TiO2 审中-公开
    电沉积材料,在导电基材和金属基板上涂覆TiO 2的TiO 2的腐蚀保护层的方法

    公开(公告)号:US20080210567A1

    公开(公告)日:2008-09-04

    申请号:US11961095

    申请日:2007-12-20

    IPC分类号: C25D3/54

    CPC分类号: C25D9/08

    摘要: The present invention relates to electrodeposition material for the electrochemical deposition of a corrosion-protective layer of TiO2 on an electrically conductive substrate comprising a titanium compound, a complexing agent, an accelerator, water and optionally organic solvents, buffering agents and one or more additives, characterized in that the titanium compound is titanyl sulfate and/or titanyl oxalate, the complexing agent is selected from the group consisting of citric acid, citrates, tartaric acid, tartrates, lactic acid, lactates, gluconic acid, gluconates, polyhydroxy-polycarbonic acids, ethylenediaminetetraacetate, methylglycinediacetate, iminodisuccinate, nitrilotriacetic acid and nitrilotriacetate, triethanolamine, phosphonic acid and phosphonates, polyaspartic acid and polyaspartates, polyacrylic acid and polyacrylates and the accelerator is selected from the group consisting of H2O2 and organic peroxides. The invention further relates to a process for providing a corrosion-protective layer of TiO2 on an electrically conductive substrate and to a metal substrate coated with a layer of TiO2.

    摘要翻译: 本发明涉及用于在包含钛化合物,络合剂,促进剂,水和任选的有机溶剂的导电基材上电化学沉积TiO 2的腐蚀保护层的电沉积材料, 缓冲剂和一种或多种添加剂,其特征在于钛化合物是硫酸氧钛和/或草酸氧钛,络合剂选自柠檬酸,柠檬酸盐,酒石酸,酒石酸盐,乳酸,乳酸盐,葡萄糖酸 ,葡糖酸盐,多羟基 - 聚碳酸,乙二胺四乙酸盐,甲基甘氨二乙酸盐,亚氨基二琥珀酸盐,次氮基三乙酸和次氮基三乙酸盐,三乙醇胺,膦酸和膦酸盐,聚天冬氨酸和聚天冬氨酸盐,聚丙烯酸和聚丙烯酸盐,加速剂选自H 2 O 2和有机过氧化物。 本发明还涉及一种在导电衬底上和涂覆有TiO 2层的金属衬底上提供TiO 2的防腐蚀层的方法。