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    Solvent-free film-forming compositions for clearcoats, coated substrates and method related thereto
    2.
    发明授权
    Solvent-free film-forming compositions for clearcoats, coated substrates and method related thereto 失效
    用于透明涂层，涂覆基材的无溶剂成膜组合物及其相关方法

    公开(公告)号：US06329060B1

    公开(公告)日：2001-12-11

    申请号：US09437796

    申请日：1999-11-10

    申请人： Karen A. Barkac ,  Dennis Leroy Faler ,  Mary E. Grolemund ,  Debra Lynn Singer

    发明人： Karen A. Barkac ,  Dennis Leroy Faler ,  Mary E. Grolemund ,  Debra Lynn Singer

    IPC分类号： B32B2708

    CPC分类号： C09D167/07 ,  C08G18/4615 ,  C08G18/6254 ,  C08G18/631 ,  C08G18/672 ,  C08G18/8077 ,  C09D4/06 ,  C09D175/04 ,  Y10T428/31551 ,  Y10T428/31554 ,  Y10T428/31786 ,  Y10T428/31855 ,  Y10T428/31909 ,  C08G18/42 ,  C08F283/02 ,  C08L2666/02 ,  C08L2666/16

    摘要： A multi-component composite coating composition is provided which includes a pigmented base coat and a transparent topcoat composition applied over the base coat. The transparent topcoat is deposited from a substantially solvent free film-forming composition which includes a thermosettable dispersion of polymeric microparticles having functionality adapted to react with a crosslinking agent and a hydrophilic crosslinking agent reactive with the functionality of the microparticles. The microparticles are prepared from one or more reaction products of ethylenically unsaturated monomers, one or more hydrophobic polymers and one or more hydrophobic crosslinking agents. Pigmented film-forming compositions as well as curable compositions containing the above-described dispersions also are provided. A method of forming the dispersion of polymeric microparticles is provided. The substantially solvent-free film-forming compositions of the invention are storage stable at room temperature and provide coatings with excellent application properties such as sag resistance and tack-free overspray, and excellent performance properties such as chip resistance and adhesion. The film-forming compositions are suitable for wet-on-wet application over a base coat with little or no mudcracking.

    摘要翻译： 提供了一种多组分复合涂料组合物，其包括着色底涂层和涂覆在底涂层上的透明面漆组合物。 透明面漆由基本上无溶剂的成膜组合物沉积，该组合物包括具有适于与交联剂反应的官能团的聚合物微粒的可热分散分散体和与微粒官能度反应的亲水性交联剂。 微粒由烯属不饱和单体，一种或多种疏水性聚合物和一种或多种疏水性交联剂的一种或多种反应产物制备。 还提供了着色成膜组合物以及含有上述分散体的可固化组合物。 提供了形成聚合物微粒分散体的方法。 本发明的基本上无溶剂的成膜组合物在室温下保存稳定，并提供具有优异应用性能的涂层，例如抗流挂性和无粘性过喷，以及优异的性能特性如耐芯片性和粘合性。 成膜组合物适用于湿法湿法施涂于基底涂层上，很少或没有泥浆破裂。

    Multilayered coating with powder clear coating and substrates therewith and method
    4.
    发明授权
    Multilayered coating with powder clear coating and substrates therewith and method 失效
    具有粉末透明涂层和基材的多层涂层及方法

    公开(公告)号：US6077608A

    公开(公告)日：2000-06-20

    申请号：US932505

    申请日：1997-09-18

    申请人： Karen A. Barkac ,  Joseph Benga ,  John M. Furar ,  Charles M. Kania ,  Gaurav Agrawal ,  Paul H. Lamers

    发明人： Karen A. Barkac ,  Joseph Benga ,  John M. Furar ,  Charles M. Kania ,  Gaurav Agrawal ,  Paul H. Lamers

    IPC分类号： B05D7/00 ,  C08L33/06 ,  C08L73/02 ,  C09D133/06 ,  B32B9/04

    CPC分类号： B05D7/532 ,  B05D7/534 ,  C09D133/068 ,  B05D7/572 ,  C08L2205/02 ,  C08L33/068 ,  C08L73/02 ,  Y10S525/934 ,  Y10T428/31504

    摘要： Cured thermoset multilayered composite coatings with a powder clear coat and a waterborne base coat have improved chip resistance for the coating. The waterborne base coat composition has one or more crosslinkable film-forming polymers, one or more crosslinking agents for crosslinking the film-forming polymer, and one or more pigments. This basecoat is applied to a bare or previously painted substrate to give a film thickness in the range of about 0.1 to 3 mils (2.54 to 76.2 microns). The basecoat is dehydrated from treatment at a temperature from ambient to an elevated temperature of up to about 90.degree. C. for up to about 15 minutes before it is contacted with powder clear coating composition. The powder clear coating composition has a predominant amount of one or more crosslinkable, meltable and mobile film-forming polymer and/or copolymer having a weight average molecular weight of one or polymers/copolymers in the range of about 2000 to about 6000. The film-forming polymer or copolymer has an amount of functionality for crosslinking of at least 40 weight percent of the total resin solids for the polymers. The glass transition temperature for the powder coating composition is at least about 25.degree. C. The powder coating composition for the clear coat also has one or more crosslinking agents and when cured has a film thickness in the range of about 35 to about 100 microns. The basecoat and clear coat are co-cured. Optionally, one or more primer coats may be beneath the basecoat.

    摘要翻译： 具有粉末透明涂层和水性底漆的固化热固性多层复合涂层具有改善涂层的抗碎屑性能。 水性底漆组合物具有一种或多种可交联成膜聚合物，用于交联成膜聚合物的一种或多种交联剂和一种或多种颜料。 将该底涂层施加到裸露或预先涂漆的基材上，以得到约0.1至3密耳（2.54至76.2微米）范围内的膜厚度。 在与粉末透明涂料组合物接触之前，底漆从处于环境温度至高达约90℃的高温下脱水长达约15分钟。 粉末透明涂料组合物具有主要量的一种或多种可交联，可熔和可移动的成膜聚合物和/或共聚物，其重均分子量为1或聚合物/共聚物在约2000至约6000的范围内。该膜 形成的聚合物或共聚物具有用于交联聚合物的总树脂固体的至少40重量％的官能度。 用于粉末涂料组合物的玻璃化转变温度为至少约25℃。用于透明涂层的粉末涂料组合物还具有一种或多种交联剂，并且当固化时具有约35至约100微米范围内的膜厚度。 底漆和透明涂层共同固化。 任选地，一个或多个底漆涂层可以在底涂层之下。

    Block copolymers
    10.
    发明授权
    Block copolymers 失效
    嵌段共聚物

    公开(公告)号：US06288173B1

    公开(公告)日：2001-09-11

    申请号：US09325227

    申请日：1999-06-03

    申请人： Karl F. Schimmel ,  Karen A. Barkac ,  Kurt A. Humbert ,  Jonathan D. Goetz ,  James B. O'Dwyer

    发明人： Karl F. Schimmel ,  Karen A. Barkac ,  Kurt A. Humbert ,  Jonathan D. Goetz ,  James B. O'Dwyer

    IPC分类号： C08F29700

    CPC分类号： C08L53/00 ,  C08F293/005 ,  C09D153/00

    摘要： Block copolymers containing at least two blocks are provided and comprise: (a) a first block containing residues of at least one first ethylenically unsaturated radically polymerizable monomer that is free of hydroxy functionality, e.g., 2-ethylhexyl methacrylate, and a minor amount of at least one hydroxy functional ethylenically unsaturated radically polymerizable monomer, e.g., hydroxypropyl methacrylate; and (b) a second block containing residues of at least one second ethylenically unsaturated radically polymerizable monomer that is free of hydroxy functionality, e.g., iso-butyl methacrylate, and a minor amount of at least one hydroxy functional ethylenically unsaturated radically polymerizable monomer. The calculated Tg of the second monomer of the block copolymer is at least 20° C. greater than the calculated Tg of the first monomer.

    摘要翻译： 提供含有至少两个嵌段的嵌段共聚物，其包含：（a）含有至少一种不含羟基官能团的至少一种第一烯属不饱和自由基可聚合单体的残基的第一嵌段，例如甲基丙烯酸2-乙基己基酯和少量的 至少一种羟基官能的烯属不饱和自由基聚合单体，例如甲基丙烯酸羟丙酯; 和（b）含有至少一种不含羟基官能团的第二烯属不饱和自由基可聚合单体残基的第二嵌段，例如甲基丙烯酸异丁酯和少量至少一种羟基官能烯属不饱和自由基聚合单体。 嵌段共聚物的第二单体的计算的Tg比第一单体的计算的Tg大至少20℃。