Pigment dispersions containing dispersants having pendent hydrophilic polymeric segments prepared by controlled radical polymerization
    143.
    发明授权
    Pigment dispersions containing dispersants having pendent hydrophilic polymeric segments prepared by controlled radical polymerization 失效
    含有分散剂的颜料分散体,其具有通过受控自由基聚合制备的具有亲水性亲水性聚合物链段

    公开(公告)号:US06376597B1

    公开(公告)日:2002-04-23

    申请号:US09464915

    申请日:1999-12-16

    IPC分类号: C08L5100

    摘要: A pigment dispersion comprising pigment, an aqueous carrier selected from water and a mixture of water and at least one organic solvent, and a pigment dispersant is described. The pigment dispersant is prepared by polymerizing (i) at least one prepolymer having a radically polymerizable group, and (ii) at least one second monomer. The prepolymer is prepared by controlled radical polymerization, e.g., atom transfer radical polymerization, of at least one radically polymerizable first monomer. The second monomer forms a polymeric backbone segment of the pigment dispersant, and the prepolymer forms polymeric segments that are pendent to the backbone. The backbone segment of the pigment dispersant in hydrophobic, while at least a portion of each pendent polymeric segment is hydrophilic.

    摘要翻译: 描述了包含颜料,选自水和水与至少一种有机溶剂的混合物的水性载体和颜料分散剂的颜料分散体。 通过聚合(i)至少一种具有自由基聚合性基团的预聚物和(ii)至少一种第二单体来制备颜料分散剂。 预聚物通过至少一种可自由基聚合的第一单体的受控自由基聚合,例如原子转移自由基聚合制备。 第二单体形成颜料分散剂的聚合物主链段,并且预聚物形成与主链相邻的聚合物链段。 疏水性的颜料分散剂的骨架部分,而每个侧链聚合物链段的至少一部分是亲水的。

    Cationic electrocoating compositions, method of making, and use
    144.
    发明授权
    Cationic electrocoating compositions, method of making, and use 失效
    阳离子电涂组合物,制备方法和使用

    公开(公告)号:US5820987A

    公开(公告)日:1998-10-13

    申请号:US700977

    申请日:1996-08-21

    摘要: 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.

    摘要翻译: 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。

    High throw power electrodeposition system
    147.
    发明授权
    High throw power electrodeposition system 失效
    高功率电沉积系统

    公开(公告)号:US5202383A

    公开(公告)日:1993-04-13

    申请号:US732534

    申请日:1991-07-19

    摘要: A high throw power electrodeposition system with improved rupture voltage is disclosed. The electrodepositable coating includes an active hydrogen-containing ionic resin and a gamma hydroxy urethane curing agent, such as a curing agent having the structural feature: ##STR1## The gamma hydroxy urethane curing agent can be prepared by reacting a polyisocyanate with a 1,3-polyol, and in particular with 2,2,4-trimethylpentane-1,3-diol. The composition can also include a curing agent having an alkyl urethane structural feature which can be the reaction product of a polyisocyanate and a blocking agent which is a fatty alcohol. A method for coating a conductive substrate with the above-described composition is also disclosed. The method includes passing an electric current between the conductive substrate serving as a first anode and a second anode to deposit the composition and the conductive substrate.

    摘要翻译: 公开了具有改善的断裂电压的高功率电沉积系统。 可电沉积涂层包括含活性氢的离子树脂和γ-羟基聚氨酯固化剂,例如具有以下结构特征的固化剂:γ羟基聚氨酯固化剂可以通过使多异氰酸酯与1,3 - 多元醇,特别是与2,2,4-三甲基戊烷-1,3-二醇。 组合物还可以包括具有烷基氨基甲酸酯结构特征的固化剂,其可以是多异氰酸酯和作为脂肪醇的封闭剂的反应产物。 还公开了用上述组合物涂覆导电基材的方法。 该方法包括在用作第一阳极的导电衬底和第二阳极之间传递电流以沉积组合物和导电衬底。

    Fluorine containing polymers and coating compositions prepared therefrom
    150.
    发明授权
    Fluorine containing polymers and coating compositions prepared therefrom 失效
    含氟聚合物和由其制备的涂料组合物

    公开(公告)号:US4857620A

    公开(公告)日:1989-08-15

    申请号:US213049

    申请日:1988-06-29

    IPC分类号: C08F214/18 C08F214/22

    CPC分类号: C08F214/227 C08F214/18

    摘要: A fluorine containing polymer containing ester groups in the backbone of the polymer is prepared by the ring opening free radical polymerization of a cyclic ketene acetal with a vinyl monomer component comprising a fluorine containing vinyl monomer. The aforesaid fluorine containing polymer which contains ester groups can be reacted with a material containing functional groups capable of cleaving the carbon oxygen single bonds of the ester groups. The resultant oligomeric material contains functionality as a result of the cleavage which is suitable for reaction with a crosslinking agent to form a cured film.

    摘要翻译: 通过环状乙烯酮缩醛与包含含氟乙烯基单体的乙烯基单体组分的开环自由基聚合制备在聚合物主链中含有酯基的含氟聚合物。 含有酯基的上述含氟聚合物可以与含有能够裂解酯基的碳氧单键的官能团的物质反应。 所得到的低聚材料包含作为裂解结果的官能度,其适于与交联剂反应以形成固化膜。