Acid zinc plating baths, compositions useful therein, and methods for
electrodepositing bright zinc deposits
    1.
    发明授权
    Acid zinc plating baths, compositions useful therein, and methods for electrodepositing bright zinc deposits 失效
    酸性镀锌浴,其中使用的组合物以及电沉积亮锌沉积物的方法

    公开(公告)号:US4169772A

    公开(公告)日:1979-10-02

    申请号:US958124

    申请日:1978-11-06

    IPC分类号: C25D3/22

    CPC分类号: C25D3/22

    摘要: An aqueous acidic plating bath for the electrodeposition of a bright zinc deposit on a substrate is disclosed and comprises zinc ions and an amount, sufficient to provide a level and bright deposit, of at least one bath-soluble composition obtained by the reaction of a nitrogen-containing heterocyclic compound with formaldehyde, an epihalohydrin or glycerol halohydrin and at least one amino compound selected from the group consisting of (i) ammonia, (ii) an aliphatic amine, or (iii) an amidine. Additionally, the plating baths of the invention may contain a nitrogen-containing compound obtained by the reaction of ammonia, an aliphatic amine containing at least one primary amine group, or mixtures thereof with one or more epihalohydrins, glycerol halohydrins or mixtures thereof. Thioureas and anionic aromatic sulfonic acids or salts thereof also are contemplated as being useful in the plating baths of the invention. Methods for depositing a bright zinc coating over a wide range of current densities also are described.

    摘要翻译: 公开了一种用于在基底上电沉积光亮锌沉积物的酸性电镀液,其包含锌离子和足以提供水平和光亮沉积物的至少一种通过氮气反应获得的溶液组合物的量 (i)氨,(ii)脂族胺,或(iii)脒等)中选择的至少一种氨基化合物,所述化合物与甲醛,表卤代醇或甘油卤代醇和至少一种氨基化合物。 此外,本发明的电镀液可以含有通过氨反应得到的含氮化合物,含有至少一个伯胺基团的脂族胺或其混合物与一种或多种表卤代醇,甘油卤代醇或其混合物。 硫脲和阴离子芳族磺酸或其盐也被认为可用于本发明的电镀浴。 还描述了在宽电流密度范围内沉积亮锌涂层的方法。

    Acid zinc plating baths and methods for electrodepositing bright zinc
deposits
    2.
    发明授权
    Acid zinc plating baths and methods for electrodepositing bright zinc deposits 失效
    酸性锌电镀浴和电沉积亮锌沉积物的方法

    公开(公告)号:US4229268A

    公开(公告)日:1980-10-21

    申请号:US55803

    申请日:1979-07-09

    IPC分类号: C09D5/44 C25D3/22

    CPC分类号: C25D3/22 C09D5/4419

    摘要: An aqueous acidic plating bath for the electrodeposition of a bright zinc deposit on a substrate is disclosed and comprises zinc ions, and an amount sufficient to provide a level and bright zinc electrodeposit, of a polymeric sulfur-containing compound having the general formulaRS(R'O--.sub.n H, or (I)(S[(R').sub.n H].sub.2 (II)wherein R is an alkyl group containing up to about 24 carbon atoms, each R' is independently an alkylene group containing 2 or 3 carbon atoms and each n is independently an integer of from 1 to about 100.Additionally, the plating baths of the invention may contain at least one aromatic carbonyl-containing compound and particularly aromatic aldehydes and aromatic carboxylic acids. Aromatic sulfonic acids and ethylene oxide condensates of such sulfonic acids also are useful in the plating baths of the invention. Other ethylene oxide condensates can be included in the baths including those derived from carboxylic acids, amides, amines, alcohols, phenols and naphthols. Methods for depositing bright zinc coating over a wide range of current densities, and additive compositions for preparing plating baths useful in these methods also are described.

    摘要翻译: 公开了一种用于在基底上电沉积光亮锌沉积物的酸性电镀浴,其包含锌离子和足以提供具有通式RS(R(R))的聚合物含硫化合物的水平和光亮锌电沉积量 'O-nH或(I)(S [(R')nH] 2(II)其中R是含有最多约24个碳原子的烷基,每个R'独立地是含有2或3个碳原子的亚烷基 并且每个n独立地为1至约100的整数。另外,本发明的电镀浴可以含有至少一种含芳族羰基的化合物,特别是芳族醛和芳族羧酸。芳族磺酸和这样的环氧乙烷缩合物 磺酸也可用于本发明的电镀浴中,其他环氧乙烷缩合物可包括在浴中,包括衍生自羧酸,酰胺,胺,醇,酚和萘酚的浴。 r在宽电流密度范围内沉积亮锌涂层,并且还描述了用于制备用于这些方法的电镀浴的添加剂组合物。

    Low pressure liquid filter cartridge and method of making
    3.
    发明授权
    Low pressure liquid filter cartridge and method of making 失效
    低压液体滤芯及其制作方法

    公开(公告)号:US5108599A

    公开(公告)日:1992-04-28

    申请号:US381447

    申请日:1989-07-18

    申请人: Richard K. Lowery

    发明人: Richard K. Lowery

    IPC分类号: B01D35/30 B29C65/58 C02F1/00

    摘要: A method for making a low pressure cartridge for liquid filtration, particularly of minerals from drinking water, comprises locating a pair of substantially identical end cap members telescopically on opposing ends of a tubular member. The end cap members are coupled to the tubular member mechanically by interference between four circumferential rings raised from an inner surface of each of the end caps and like numbers of circumferential grooves on a facing surface of the tubular member. O-rings between the telescoped members provide further fluid sealing and increased mechanical coupling, if desired. Different axial spacing between different adjoining pairs of rings assure axial alignment of the end caps with the tubular member during assembly.

    摘要翻译: 制造用于液体过滤的低压筒,特别是饮用水中的矿物质的低压筒的方法包括将一对基本上相同的端盖构件可伸缩地定位在管状构件的相对端上。 端盖构件通过从每个端盖的内表面凸起的四个周向环之间的干涉机械地联接到管状构件,并且在管状构件的相对表面上具有相同数量的周向槽。 如果需要,伸缩构件之间的O形环提供进一步的流体密封和增加的机械联接。 不同邻接对环之间的不同轴向间距确保端盖与组件之间的管状构件的轴向对准。