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    • 33. 发明授权
    • Cationic electrocoating compositions, method of making, and use
    • 阳离子电涂组合物,制备方法和使用
    • US5936012A
    • 1999-08-10
    • US167687
    • 1998-10-07
    • Marvin L. KaufmanPatrick O'NeillRichard F. KarabinGregory J. McCollum
    • Marvin L. KaufmanPatrick O'NeillRichard F. KarabinGregory J. McCollum
    • C08G18/58C08G18/64C09D5/44C09D163/00C09D175/04C09D179/02C08K3/20
    • C08G18/643C09D5/4434Y10T428/31511Y10T428/31551
    • An electrodepositable composition that has: (A) an active hydrogen-containing cationic resin, electrodepositable on a cathode, having: (1) a polyepoxide; (2) an oxygen-substituted diamine compound having the following formula: ##STR1## where n is an integer from 2 to 4; and where R.sup.1 or R.sup.2 are the same or different and either one or both contain at least one oxygen and are alkyl, cycloalkyl, substituted alkyl, or substituted cycloalkyl having from 1 to 6 carbon atoms, or R.sup.1 and R.sup.2 are alkanol groups having from 2 to 6 carbon atoms, or R.sup.1, R.sup.2, and the N atom form a cyclic group which is substituted or unsubstituted such as morpholine and 1-(3-aminopropyl) imidazole; and (B) at least partially blocked isocyanate or polyisocyanate curing agent. The diamine compound of Formula I can be used alone or in conjunction with one or more secondary amines, nonhydroxy group containing amines and/or amines with ring structures. Optionally, the polyepoxide can be chain extended with active hydrogen-containing compounds other than polyoxyalkylene polyamines. Also provided is a method of producing an active hydrogen-containing cationic resin composition, electrodepositable on a cathode, comprised of (a) mixing together in a suitable reaction vessel a polyepoxide, or the precursors of the polyepoxide, a polycarboxylic acid, a blocked isocyanate curing agent; (b) adding to the mixture of (a) a base catalyst and the diamine compound of Formula I; (c) polymerizing the mixture of (b) to form a resinous composition; and (d) neutralizing the resinous composition of (c) by adding the resinous composition to a dilute mixture of acid and water to form an aqueous dispersed electrodepositable cationic resin composition.
    • 一种电沉积组合物,其具有:(A)可阴离子电解的活性含氢阳离子树脂,其具有:(1)聚环氧化物; (2)具有下式的氧取代二胺化合物:其中n是2至4的整数; 并且其中R 1或R 2相同或不同,并且一个或两者含有至少一个氧,并且是具有1至6个碳原子的烷基,环烷基,取代的烷基或取代的环烷基,或者R 1和R 2是具有2个 至6个碳原子,或R 1,R 2和N原子形成取代或未取代的环状基团,例如吗啉和1-(3-氨基丙基)咪唑; 和(B)至少部分封端的异氰酸酯或多异氰酸酯固化剂。 式I的二胺化合物可以单独使用或与一种或多种仲胺,含羟基的胺和/或具有环结构的胺结合使用。 任选地,聚环氧化物可以用除聚氧化烯多胺以外的活性含氢化合物链延伸。 还提供了一种生产可阴离子电沉积的含活性氢的阳离子树脂组合物的方法,其包括(a)在合适的反应容器中在聚环氧化物或聚环氧化物的前体,多元羧酸,封端异氰酸酯 固化剂 (b)向(a)碱催化剂和式I的二胺化合物的混合物中加入; (c)使(b)的混合物聚合以形成树脂组合物; 和(d)通过将树脂组合物加入酸和水的稀混合物中和(c)的树脂组合物,形成水分散的可电沉积阳离子树脂组合物。
    • 39. 发明授权
    • Electrodeposition baths containing yttrium
    • 含有钇的电沉积浴
    • US06190525B1
    • 2001-02-20
    • US09298104
    • 1999-04-22
    • Richard F. KarabinAlan J. Kaylo
    • Richard F. KarabinAlan J. Kaylo
    • C25D1310
    • C09D5/4492C09D5/448Y10S524/901
    • Disclosed are improved electrodeposition bath compositions comprising a resinous phase dispersed in an aqueous medium, the resinous phase being comprised of an active hydrogen containing ionic electrodepositable resin and a curing agent, where the improvement comprises the addition to an electrodeposition bath of at least one source of yttrium in an amount of about 10 to 10,000 parts per million of total yttrium based on electrodeposition bath weight. The electrodeposition bath compositions are preferably cationic and provide for excellent corrosion resistance over a variety of metal substrates including untreated steel. Also disclosed is a method of electrocoating a conductive substrate using the improved electrodeposition bath compositions of the invention. Metallic substrates which are coated using the method of the invention are also disclosed.
    • 公开了改进的电沉积浴组合物,其包含分散在水性介质中的树脂相,所述树脂相由含活性氢的离子可电沉积树脂和固化剂组成,其中改进包括添加至少一种源的电沉积浴 基于电沉积浴重量,钇的总钇的量为约10至10,000份。 电沉积浴组合物优选是阳离子的,并且在包括未处理的钢的各种金属基材上提供优异的耐腐蚀性。 还公开了使用本发明的改进的电沉积浴组合物电导涂层的方法。 还公开了使用本发明的方法涂覆的金属基底。