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    • 5. 发明授权
    • 폴리에폭사이드의탈작용화방법
    • KR100374528B1
    • 2003-05-09
    • KR1019960705385
    • 1995-03-29
    • 피피지 인더스트리즈 오하이오 인코포레이티드
    • 스와룹샨티암브로스로날드알오'드와이어제임스비피츠게랄드로렌스제이
    • C08F220/04C08L63/00
    • C08G59/4261C09D133/18C09D163/00C08L2666/04
    • Improved application latitude, including blister resistance, has been found attainable by using a coating formulation that includes a water dispersible resin including the addition copolymerization reaction product of vinyl monomers including an acid group containing monomer, an N-(alkoxymethyl)acrylamide or N-(alkoxymethyl) methacrylamide monomer, and at least one other vinyl monomer, the reaction being carried out in the presence of a solvent including a polyol, wherein the OH groups of polyol molecule are of unequal reactivity. The copolymer may be blended with an amine modified epoxy resin to form a coating composition. Similar advantageous results have been found attainable by using a coating formulation that includes a water dispersible resin comprising the addition copolymerization reaction product of vinyl monomers including an acid group containing monomer and at least one other vinyl monomer, blended with an amine modified epoxy resin, wherein the acid groups in the vinyl addition copolymer were only partially neutralized when making aqueous dispersions. It has also been found that amine defunctionalized epoxy resins, when used in coating compositions, have improved blush and stain resistance when employing reaction ratios near 1:1 equivalent of epoxy group to equivalent of primary amine or ammonia.
    • 已经发现通过使用包括水分散性树脂的涂料制剂可以获得包括耐起泡性在内的改善的应用宽容度,所述水分散性树脂包括乙烯基单体的加成共聚反应产物,所述乙烯基单体包括含酸基单体,N-(烷氧基甲基)丙烯酰胺或N-( 烷氧基甲基)甲基丙烯酰胺单体和至少一种其它乙烯基单体,该反应在包括多元醇的溶剂存在下进行,其中多元醇分子的OH基具有不相等的反应性。 该共聚物可以与胺改性的环氧树脂共混以形成涂料组合物。 通过使用包含水分散性树脂的涂料配方可以获得类似的有利结果,所述水性分散性树脂包含乙烯基单体的加成共聚反应产物,所述乙烯基单体包含含酸性基团的单体和至少一种与胺改性的环氧树脂共混的其它乙烯基单体,其中 当制备水分散体时,乙烯基加成共聚物中的酸基团仅被部分中和。 还发现,当胺官能化的环氧树脂用于涂料组合物时,当使用接近1:1当量的环氧基团与伯胺或氨当量的反应比率时,具有改进的白化和耐污染性。