Black trivalent chromium chromate conversion coating
    1.
    发明申请
    Black trivalent chromium chromate conversion coating 审中-公开
    黑色三价铬酸铬转化涂层

    公开(公告)号:US20040156999A1

    公开(公告)日:2004-08-12

    申请号:US10774559

    申请日:2004-02-09

    申请人: Pavco, Inc.

    摘要: A composition and method for providing a blank chromate conversion coating is provided. The composition is substantially free of hexavolent chromium and provides a black finish, on zinc or zinc alloy coatings. The composition includes trivalent chromium ions, phosphorous anions, anions selected from the group consisting of sulfate ions, nitrate ions and combinations thereof, at least one of a transition metal or metalloid from Groups III, IVa, Va or VIII, and an organic chelate selected from the group consisting of carboxylic acids, polycarboxylic acids and combinations thereof.

    摘要翻译: 提供了一种用于提供空白铬酸盐转化涂层的组合物和方法。 该组合物基本上不含六价铬,并在锌或锌合金涂层上提供黑色整理剂。 组合物包括三价铬离子,磷阴离子,选自硫酸根离子,硝酸根离子及其组合的阴离子,选自第III,IVa,Va或VIII族的过渡金属或准金属中的至少一种,以及选择的有机螯合物 由羧酸,多元羧酸及其组合组成。

    Use of N-allyl substituted amines and their salts as brightening agents in nickel plating baths
    2.
    发明申请
    Use of N-allyl substituted amines and their salts as brightening agents in nickel plating baths 失效
    在镍电镀浴中使用N-烯丙基取代的胺及其盐作为增白剂

    公开(公告)号:US20040154928A1

    公开(公告)日:2004-08-12

    申请号:US10774558

    申请日:2004-02-09

    申请人: Pavco, Inc.

    IPC分类号: C25D003/56 C25D003/12

    CPC分类号: C25D3/12 C25D3/562

    摘要: An aqueous acidic plating bath for the electrodeposition of a nickel or nickel alloy deposit. The bath includes nickel ions and an additive having the general formula: H2CnullCHCH2NR1R2 ornullH2CnullCHCH2NnullR1R2R3nullnXnnullwherein R1, R2 and R3 are selected from the functional groups consisting or hydrogen, methyl, ethyl, propyl, allyl, propyn, propanediol and combinations thereof; and Xnnull is an n-valent inorganic or organic anion.

    摘要翻译: 用于电沉积镍或镍合金沉积物的酸性电镀液。 该浴包括镍离子和具有以下通式的添加剂:H 2 C = CHCH 2 NR 1 R 2或[H 2 C = CHCH 2 N + R 1 R 2 R 3] n X 其中R 1,R 2和R 3选自由氢或甲基, 丙基,烯丙基,丙炔,丙二醇及其组合; X 为n价无机或有机阴离子。

    Trivalent chromate conversion coating
    3.
    发明申请
    Trivalent chromate conversion coating 失效
    三价铬酸盐转化涂层

    公开(公告)号:US20030145909A1

    公开(公告)日:2003-08-07

    申请号:US10056530

    申请日:2002-01-24

    申请人: Pavco, Inc.

    IPC分类号: C23C022/34

    摘要: In a preferred embodiment of the present invention, a conversion coating composition comprising chromium (III) ions, cobalt (II) ions, and nitric acid is provided. The coating composition is substantially free of chromium (VI) ions and substantially free of an oxidizing agent. The present trivalent chromium based conversion coating provides corrosion protection equal to or greater than most hexavalent chromium conversion coatings.

    摘要翻译: 在本发明的优选实施方案中,提供了包含铬(III)离子,钴(II)离子和硝酸的转化涂料组合物。 涂料组合物基本上不含铬(VI)离子并且基本上不含氧化剂。 本发明的三价铬转化涂层提供等于或大于大多数六价铬转化涂层的腐蚀保护。