Process for multicoat cathodic wet-on-wet painting of metallic
conductive substrates
    11.
    发明授权
    Process for multicoat cathodic wet-on-wet painting of metallic conductive substrates 失效
    多金属阴极湿式湿法涂覆金属导电基材的工艺

    公开(公告)号:US4818356A

    公开(公告)日:1989-04-04

    申请号:US905333

    申请日:1986-09-25

    Abstract: The invention relates to a process for coating an electrically conductive substrate, the said substrate being immersed in an aqueous bath based on a cationic synthetic resin binder which is at least in part neutralized with acids and contains amino and/or hydroxyl groups. The said bath contains a mixture of crosslinking agents as well as pigments, fillers, corrosion inhibitors, paint auxiliary substances, and, if appropriate, catalysts, as well as organic solvents in an amount of up to 15% by weight based on the total weight of the coating, the said substrate being cathodically connected. By the action of direct current, a film is deposited on the substrate, after which the said substrate is removed from the bath and the film is cured by stoving, the mixture of crosslinking agents comprising at least two crosslinking agents of different reactivities based on activated esters and/or polyisocyanates blocked by different blocking agents. The expression "different reactivities" means that the crosslinking reaction commences by heating to temperatures which are separated by at least 10.degree. C. and that crosslinking agent which is first to react is present in an amount of 15 to 60 mol %, based on the mixture of the crosslinking agents. This first coat is rinsed and one or more further cathodic coats are deposited before stoving. After each coat has been rinsed, all the coats are cured together.

    Abstract translation: PCT No.PCT / EP85 / 00694 Sec。 371日期1986年9月25日第 102(e)日期1986年9月25日PCT提交1985年12月11日PCT公布。 公开号WO86 / 03791 日本1986年7月3日。本发明涉及一种涂覆导电基材的方法,所述基材基于阳离子合成树脂粘合剂浸渍在水浴中,所述阳离子合成树脂粘合剂至少部分地被酸中和并含有氨基和/ 或羟基。 所述浴包含交联剂以及颜料,填料,腐蚀抑制剂,涂料辅助物质以及适当的催化剂以及基于总重量的至多15重量%的有机溶剂的混合物 的涂层,所述衬底被阴极连接。 通过直流电的作用,将膜沉积在基底上,然后将所述基底从浴中除去,并且通过烘烤使膜固化,交联剂的混合物包含基于活化的不同反应性的至少两种交联剂 酯和/或多异氰酸酯被不同的封闭剂阻断。 表述“不同的反应性”是指通过加热至至少10℃分离的温度开始交联反应,并且首先反应的交联剂的存在量为15至60mol%,基于 交联剂的混合物。 冲洗第一层涂层,并在烘烤之前沉积一层或多层其它阴极涂层。 每件外套已经冲洗完毕后,所有的外套都被固化在一起。

    Water-dispersible binders for cationic electrocoating finishes, and
process for their preparation
    14.
    发明授权
    Water-dispersible binders for cationic electrocoating finishes, and process for their preparation 失效
    用于阳离子电泳涂饰的水分散性粘合剂及其制备方法

    公开(公告)号:US4548965A

    公开(公告)日:1985-10-22

    申请号:US648171

    申请日:1984-08-31

    CPC classification number: C09D5/4434

    Abstract: The invention relates to water-dispersible binders for cationic electrocoating finishes, which are obtained by reaction of(A) epoxy resins containing low molecular weight aromatic groups and having an epoxide equivalent weight of less than 375 with(B) aliphatic and/or alicyclic polyfunctional alcohols or carboxylic acids having a number average molecular weight of less than 350, further reaction of the product of (A) and (B) with(C) a polyfunctional alcohol having a molecular weight of more than 350, addition at the epoxide groups taking place so that the reaction products of (A) and (B) contain an amount of aromatic groups of from 10 to 45% by weight, calculated as phenylene groups, and further modification of the resulting intermediate with(D) primary and/or secondary amines or ammonium salts in order to achieve the required water-dispersibility. The binders contain, as component (C), 5 to 40% by weight, based on the total binder, of a linear polyalkylene ether diol which has on average one terminal primary and one terminal secondary hydroxyl group per molecule and corresponds to the general formula ##STR1## in which n denotes 1 to 4, preferably 1, and m denotes 4 to 35, preferably 5 to 20.

    Abstract translation: PCT No.PCT / DE84 / 00003 Sec。 371日期1984年8月31日 102(e)日期1984年8月31日PCT提交1985年1月5日PCT公布。 出版物WO84 / 02712 日本1984年7月19日。本发明涉及阳离子电泳涂饰用水分散性粘合剂,其通过(A)含有低分子量芳族基团且环氧当量小于375的环氧树脂与(B )数均分子量小于350的脂族和/或脂环族多官能醇或羧酸,(A)和(B)的产物与(C)分子量大于350的多官能醇进一步反应 在(A)和(B)的反应产物中含有一定量的作为亚苯基计算的10至45重量%的芳族基团并进一步改性(( D)伯胺和/或仲胺或铵盐,以达到所需的水分散性。 作为组分(C),粘合剂含有基于总粘合剂的5至40重量%的线性聚亚烷基醚二醇,其每分子平均具有一个末端伯和一个末端仲羟基,并且对应于通式 其中n表示1至4,优选1,m表示4至35,优选5至20。

    Cathodic water-dilutable binders, water-dilutable coating compositions
and processes for the preparation of cathodic water-dilutable binders
based on mercapto-ketimine-modified epoxy resins
    16.
    发明授权
    Cathodic water-dilutable binders, water-dilutable coating compositions and processes for the preparation of cathodic water-dilutable binders based on mercapto-ketimine-modified epoxy resins 失效
    阴离子水可剥离胶粘剂,水性涂料组合物和基于改性环氧树脂修饰的阴离子水可渗透粘合剂的制备方法

    公开(公告)号:US5086091A

    公开(公告)日:1992-02-04

    申请号:US368316

    申请日:1989-11-20

    CPC classification number: C08G59/4042 C08G59/66 C09D5/443

    Abstract: The invention relates to cathodic water-dilutable binders which contain primary amino groups neutralized with acids and introduced via ketimine groups. The binders have been prepared by reacting(A) a synthetic resin containing epoxy groups with(B) at least one compound which, in addition to a mercapto group which is reactive toward epoxy groups, also possesses at least one ketimine group, and, if required,(C) other modifying compounds, such as, for example, monocarboxylic acids and/or other primary and/or secondary amines,and have then been neutralized with an acid.

    Abstract translation: PCT No.PCT / EP87 / 00713 371日期:1989年11月20日 102(e)日期:1989年11月20日PCT 1987年11月16日PCT公布。 出版物WO88 / 03941 日期:1988年6月2日。本发明涉及含有用酸中和并通过酮亚胺引入的伯氨基的阴极水可稀释粘合剂。 通过使(A)含有环氧基的合成树脂与(B)至少一种化合物反应来制备粘合剂,该化合物除了对环氧基具有反应性的巯基之外,还具有至少一个酮亚胺基,如果 (C)其它改性化合物,例如单羧酸和/或其它伯胺和/或仲胺,然后用酸中和。

    Aqueous cathodic electrocoating material and a process for coating an
electrically conductive substrate
    19.
    发明授权
    Aqueous cathodic electrocoating material and a process for coating an electrically conductive substrate 失效
    水性阴极电涂层材料和涂覆导电基材的方法

    公开(公告)号:US4781808A

    公开(公告)日:1988-11-01

    申请号:US878835

    申请日:1986-04-30

    CPC classification number: C09D5/4496 C08G18/0814 C08G18/643 C08G18/8061

    Abstract: The invention relates to an aqueous cathodic electrocoating material which contains a synthetic resin binder containing amino and/or hydroxyl groups and capable of being rendered water-soluble by the addition of an acid. The synthetic resin binder contains a mixture of crosslinking agents, as well as pigments, fillers, corrosion inhibitors, surface coating assistants, if appropriate catalysts, and organic solvents in an amount of up to 15% by weight, based on the total weight of the coating material. The mixture of crosslinking agents consists of at least two crosslinking agents which possess different reactivities and are based on activated esters and/or polyisocyanates blocked with different blocking agents. Different reactivities means that the crosslinking reactions begin at temperatures which are at least 10.degree. C. apart. The crosslinking reagent which reacts first is present in an amount of from 15 to 60 mol %, based on the mixture of crosslinking agents.

    Abstract translation: PCT No.PCT / DE85 / 00261 Sec。 一九八六年四月三十日 102(e)日期1986年4月30日PCT提交1985年8月2日PCT公布。 出版物WO86 / 01526 日期:1986年3月13日。本发明涉及含有氨基和/或羟基并能够通过加入酸而变得水溶性的合成树脂粘合剂的水性阴极电涂层材料。 合成树脂粘合剂含有交联剂的混合物,以及颜料,填料,腐蚀抑制剂,表面涂层助剂,如果合适的催化剂,以及基于总重量的至多15重量%的有机溶剂 涂料。 交联剂的混合物由至少两种具有不同反应性的交联剂组成,并且基于用不同封闭剂阻断的活化酯和/或多异氰酸酯。 不同的反应性意味着交联反应在至少10℃的温度下开始。 基于交联剂的混合物,首先反应的交联试剂的存在量为15至60mol%。

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