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    • 94. 发明授权
    • Method of forming a multi-layer coating on automobile bodies without a primer bake
    • 在没有底漆的汽车车身上形成多层涂层的方法
    • US07740911B2
    • 2010-06-22
    • US11543621
    • 2006-10-05
    • Isidor HazanJeffery W. JohnsonRobert R. MathesonDelson J. Trindade
    • Isidor HazanJeffery W. JohnsonRobert R. MathesonDelson J. Trindade
    • C09D3/02
    • C09D4/00B05D1/007B05D7/572B05D7/577B05D2202/00C08F265/04C08G18/6233C08G18/808C08L51/003C09D5/002C09D151/003C09D175/04C09D175/14Y10T428/31855C08L2666/02
    • This invention relates to a method for forming a multi-layer coating, comprising sequentially applying a layer of primer coating composition, a layer of base coat composition, and a layer of clear coat composition on an automotive substrate in a wet-on-wet-on-wet manner, and simultaneously curing the applied three layers together in a single baking step. The primer surfacer comprises a film forming binder, a volatile organic liquid carrier, and pigment(s); and the binder contains about (a) 40 to 95% by weight of a caprolactone-modified highly branched acrylic polymer having a hydroxyl and/or carboxyl monomer content, all or part of which has been reacted with caprolactone, of about 1 to 65% by weight and a weight average molecular weight of about 10,000 to 150,000; and (b) 5 to 60% by weight of an aminoplast resin crosslinking agent. The composition is essentially free of crosslinked nonaqueous dispersion resin particles or crosslinked microgel resin particles or both. The resulting cured multi-layered coating has excellent aesthetic appearance, strike-in resistance, chipping resistance, sag resistance, and film build even when formed in a three wet layered application method.
    • 本发明涉及一种形成多层涂层的方法,包括在湿式湿式涂布机中在汽车基材上依次施加一层底漆涂料组合物,底涂层组合物层和透明涂层组合物层, 并且在单个烘烤步骤中同时将施加的三层固化在一起。 底漆二面体包括成膜粘合剂,挥发性有机液体载体和颜料; 并且粘合剂含有(a)40至95重量%的具有羟基和/或羧基单体含量的己内酯改性的高度支化的丙烯酸类聚合物,其全部或部分已与己内酯反应约1至65% 的重均分子量为约10,000至150,000; 和(b)5-60重量%的氨基塑料树脂交联剂。 该组合物基本上不含交联的非水分散体树脂颗粒或交联的微粒凝胶树脂颗粒或两者。 所得到的固化多层涂层即使在三湿分层涂布法中形成,也具有优异的美学外观,耐冲击性,耐崩裂性,抗流挂性和成膜性。
    • 96. 发明申请
    • (METH)ACRYLIC POLYMER PARTICLE, METHOD FOR PRODUCING THE SAME, PLASTISOL COMPOSITION MADE FROM THE POLYMER PARTICLE, AND ARTICLE MADE FROM THE PLASTISOL COMPOSITION
    • (METH)丙烯酸聚合物颗粒,其制备方法,聚合物颗粒制备的塑料组合物和来自PLASTISOL组合物的制品
    • US20100069566A1
    • 2010-03-18
    • US12524255
    • 2008-01-23
    • Satoshi Mae
    • Satoshi Mae
    • C08L33/12C08F265/06
    • C08F265/04C08F265/06C08F285/00C08K5/0016C08L51/003C08L2666/02C09D133/10C09D151/003C09J133/10C09J151/003C09K3/10C09K2200/0625C08F220/18
    • Disclosed are an industrially useful (meth)acrylic polymer particle for use in a plastisol which is excellent in storage stability, particularly under circumstance at 40° C. or above, so that it can suppress gelation and maintain a sol state during storage and which can give a shaped article excellent in flexibility and chipping resistance; a method for producing the (meth)acrylic polymer particle; and a plastisol composition made from the (meth)acrylic polymer particle. Specifically disclosed is a method for producing a (meth)acrylic polymer particle, which comprises polymerizing a monomer or monomer mixture (B) to form a polymer (b) in the presence of a polymer (a) obtained by polymerization of a monomer or monomer mixture (A), wherein a glass transition temperature (Tg) of the polymer (a) as calculated from the FOX equation is 90° C. or above, a solubility parameter of the polymer (a) is 19.90 (J/cm3)1/2 or below, and a solubility parameter of the polymer (b) is 20.22 (J/cm3)1/2 or above.
    • 公开了一种用于增塑溶胶的工业上有用的(甲基)丙烯酸类聚合物颗粒,其储存稳定性优异,特别是在40℃以上的情况下,可以抑制凝胶化并保持溶液状态,并且可以 给出具有优异的柔韧性和耐崩裂性的成型制品; (甲基)丙烯酸系聚合物粒子的制造方法, 和由(甲基)丙烯酸聚合物颗粒制成的增塑溶胶组合物。 具体公开了一种(甲基)丙烯酸系聚合物粒子的制造方法,其特征在于,在单体或单体聚合得到的聚合物(a)的存在下,使单体或单体混合物(B)聚合形成聚合物(b) 混合物(A),其中根据FOX方程计算的聚合物(a)的玻璃化转变温度(Tg)为90℃以上,聚合物(a)的溶解度参数为19.90(J / cm 3)1 / 2以下,聚合物(b)的溶解度参数为20.22(J / cm 3)1/2以上。