Process for separating multivalent metal ions from autodeposition
compositions and process for regenerating chelating type ion exchange
resins useful therewith
    3.
    发明授权
    Process for separating multivalent metal ions from autodeposition compositions and process for regenerating chelating type ion exchange resins useful therewith 失效
    用于从自身沉积组合物中分离多价金属离子的方法和用于再生与其有用的螯合型离子交换树脂的方法

    公开(公告)号:US5409737A

    公开(公告)日:1995-04-25

    申请号:US102662

    申请日:1993-08-05

    CPC classification number: C09D5/088 B05D7/142

    Abstract: The use of chelating type cation exchange resins, particularly those with iminodiacetic acid functionality, to remove dissolved multivalent cations such as iron, zinc, and chromium from used autodeposition compositions permits reuse of the autodeposition compositions without the need for added surfactant and without developing any undesirable graininess or other texture in the coatings formed. The cation exchange resins can be efficiently regenerated with 0.5 to 4% by weight aqueous hydrofluoric acid.

    Abstract translation: 使用螯合型阳离子交换树脂,特别是具有亚氨基二乙酸官能团的那些阳离子交换树脂,可以使用自动沉积组合物去除溶解的多价阳离子如铁,锌和铬,可以重​​新使用自沉积组合物,而不需要添加表面活性剂,而不会产生任何不希望的 颗粒状或其他纹理形成的涂料。 阳离子交换树脂可以用0.5至4重量%的氢氟酸水溶液有效再生。

    Use of fugitive plasticizer in autodepositing composition
    4.
    发明授权
    Use of fugitive plasticizer in autodepositing composition 失效
    在自动沉积组合物中使用挥发性增塑剂

    公开(公告)号:US4874673A

    公开(公告)日:1989-10-17

    申请号:US122617

    申请日:1987-11-19

    CPC classification number: C09D5/088 B05D7/142 C09D125/14 Y10T428/31699

    Abstract: Autodepositing compositions of the type that form coatings which tend to crack in the wet stage are modified by including in the composition a fugitive plasticizer, such as 2,2,4-trimethylpentanediol-1,3 monoisobutyrate, tributoxyethyl phosphate, ethylene glycol monohexyl ether, diethylene glycol monohexyl ether, or a mixture of phenyl glycol ethers.

    Abstract translation: 通过在组合物中包含短效增塑剂,例如2,2,4-三甲基戊二醇-1,3-单异丁酸酯,三丁氧基乙基磷酸酯,乙二醇单己基醚,乙二醇单己基醚等,改性形成在湿阶段中易于开裂的涂层的类型的自动沉积组合物, 二甘醇单己基醚或苯二醇醚的混合物。

    Apparatus and method for maintaining a stable bath for an autodeposition
composition by periodically separating particular metal ions from the
composition
    7.
    发明授权
    Apparatus and method for maintaining a stable bath for an autodeposition composition by periodically separating particular metal ions from the composition 失效
    通过从组合物中周期性地分离特定的金属离子来维持自沉积组合物的稳定浴的装置和方法

    公开(公告)号:US5538644A

    公开(公告)日:1996-07-23

    申请号:US320997

    申请日:1994-10-11

    CPC classification number: B05D7/142

    Abstract: An apparatus and method is provided for automated periodic removal of metal ions and contaminants from a chemical bath comprising a latex solution containing charged latex particles and having an acidic pH, used for forming a coating by autodeposition. The system includes a tank containing a chemical bath, an ion exchange column for removing the metal ion contaminants, circulating pump, metal composition sensors, and equipment for regeneration of the ion exchange column. The system particularly includes a filter located at the inlet to the ion exchange column for removing solid particulates, including coagulated latex and debris from the coating solution, while permitting the uncoagulated latex particles to pass through to the ion exchange column.

    Abstract translation: 提供了一种设备和方法,用于从化学浴中自动定期去除金属离子和污染物,其包含含有带电胶乳颗粒并具有酸性pH的胶乳溶液,用于通过自动沉积形成涂层。 该系统包括含有化学浴槽的罐,用于除去金属离子污染物的离子交换柱,循环泵,金属组合物传感器和用于再生离子交换柱的设备。 该系统特别包括位于离子交换塔入口处的过滤器,用于从涂覆溶液中除去固体颗粒,包括凝结的胶乳和碎屑,同时允许未胶束的胶乳颗粒通过离子交换柱。

    Method for applying autodeposition coating
    8.
    发明授权
    Method for applying autodeposition coating 失效
    应用自动沉积涂层的方法

    公开(公告)号:US5385758A

    公开(公告)日:1995-01-31

    申请号:US999479

    申请日:1992-12-30

    Inventor: Bashir M. Ahmed

    CPC classification number: C09D5/088 B05D7/142 B05D1/30

    Abstract: Process for forming an autodeposition coating on a metallic substrate by applying an autodepositing composition from a motile source thereof such as by spraying or by treating the surface with a continuous stream of the autodepositing composition.

    Abstract translation: 通过从其活动源施加自动沉积组合物,例如通过喷洒或用自动沉积组合物的连续流处理该表面,在金属基材上形成自沉积涂层的方法。

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