申请人:Ramesh Swaminathan
公开号:US20050197449A1
公开(公告)日:2005-09-08
An acrylic composition includes the reaction product of an acrylic polymer and carbon dioxide. The acrylic polymer includes the reaction product of a functionalized monomer, a first compound reactive with the functionalized monomer to form a functionalized intermediate, and a highly branched, polyfunctional core molecule reactive with the functionalized intermediate. The first compound includes vinyl functionality reactive with the functionalized monomer. The first compound also includes epoxy functionality. The carbon dioxide is reactive with the acrylic polymer to form a carbonate-functional acrylic polymer. The acrylic composition is highly-branched and, when used in coating compositions in combination with a suitable cross-linking agent, enhances recoat adhesion and produces cured films that have optimum scratch, mar, and chip performance, and acid etch resistance.
一种丙烯酸组合物包括丙烯酸聚合物和二氧化碳的反应产物。丙烯酸聚合物包括官能化单体、与官能化单体反应形成官能化中间体的第一种化合物以及与官能化中间体反应的高支化多官能核心分子的反应产物。第一种化合物包括与官能化单体反应的乙烯基官能团。第一种化合物还包括环氧官能团。二氧化碳与丙烯酸聚合物反应生成碳酸盐官能团丙烯酸聚合物。丙烯酸组合物具有高支化性,与合适的交联剂一起用于涂料组合物时,可增强重涂附着力,并生成具有最佳划痕、划痕和切屑性能以及耐酸蚀性的固化薄膜。