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1.发明授权Low temperature cure waterborne coating compositions having improved appearance and humidity resistance and methods for coating substrates 失效具有改进的外观和耐湿性的低温固化水性涂料组合物和用于涂覆基材的方法公开(公告)号：US06281272B1
公开(公告)日：2001-08-28
申请号：US09250119
申请日：1999-02-16
IPC分类号： C09D1508
CPC分类号： B05D7/53 , C08F283/006 , C08F283/02 , C08F283/04 , C08F283/06 , C08F290/062 , C08G18/6229 , C09D4/00 , C09D4/06 , C09D5/027 , C09D151/08 , C09D167/06 , C09D167/08 , C09D171/02 , C09D175/04 , C09D177/00 , Y10T428/31504 , Y10T428/31551 , Y10T428/31554 , Y10T428/31562 , Y10T428/31565 , Y10T428/31576 , Y10T428/31725 , Y10T428/31736 , Y10T428/31743 , Y10T428/31786 , Y10T428/31855 , Y10T428/31928 , C08L2666/02 , C08L2666/04 , C08L2666/18 , C08F220/18 , C08F220/28 , C08L2666/16
摘要： A waterborne coating composition having a crosslinking agent and a dispersion of polymeric microparticles in an aqueous medium wherein the microparticles are prepared by first forming a mixture in the aqueous medium of ethylenically unsaturated monomers and a substantially hydrophobic, saturated fatty acid-containing polyester. The amount of fatty acid used to prepare the polyester ranges from about 20 to 80 weight percent of the total weight of the fatty acid-containing polyester. The fatty acid-containing polyester contains functional groups which are capable of reacting with the crosslinking agent. The mixture is particularized into microparticles by high stress techniques, followed by polymerization of polymerizable species within the microparticles to produce the polymeric microparticles. The amount of the fatty acid-containing polyester in the dispersion is at least 10 and up to 70 weight percent based on weight of the ethylenically unsaturated monomers and fatty acid-containing polyester. The amount of the polymeric microparticles in the coating composition is from 20 to 80 weight percent based on total weight of resin solids in the coating composition.
摘要翻译： 一种水性涂料组合物，其具有交联剂和聚合物微粒在水性介质中的分散体，其中所述微粒通过首先在烯键式不饱和单体和基本上疏水的含饱和脂肪酸聚酯的水性介质中形成混合物来制备。 用于制备聚酯的脂肪酸的量为含脂肪酸聚酯的总重量的约20至80重量％。 含脂肪酸的聚酯包含能够与交联剂反应的官能团。 通过高应力技术将混合物特化成微粒，然后在微粒内聚合可聚合物质以产生聚合物微粒。 基于烯属不饱和单体和含脂肪酸的聚酯的重量，分散体中含脂肪酸的聚酯的量为至少10重量％至高达70重量％。 涂料组合物中聚合物微粒的量为涂料组合物中树脂固体总重量的20至80重量％。
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