Low temperature bake water reducible acrylic enamel
    91.
    发明授权
    Low temperature bake water reducible acrylic enamel 失效
    低温烘干水可稀释丙烯酸搪瓷

    公开(公告)号:US4157994A

    公开(公告)日:1979-06-12

    申请号:US833770

    申请日:1977-09-16

    摘要: A water-reducible acrylic enamel coating composition capable of being substantially completely cured at a relatively low temperature, such as about 250.degree. F. and containing a water-miscible partially etherified melamine formaldehyde cross-linking agent and an acrylic copolymerization product of about 3% to about 8% of an unsaturated carboxylic acid, about 10% to 30% of a hydroxy functional monomer and about 62% to 87% of a nonfunctional monomer. The acrylic copolymer is further characterized as having a glass transition temperature of about -10.degree. C. to 45.degree. C. and a molecular weight of about 2,000 to about 100,000. The aminoplast resin preferably is only partially etherified and contains about 10% to about 30% by weight reactive methylol groups.

    摘要翻译: 一种可水稀释的丙烯酸搪瓷涂料组合物,其能够在比较低的温度例如约250°F下基本上完全固化,并含有水混溶的部分醚化的三聚氰胺甲醛交联剂和约3% 至约8%的不饱和羧酸,约10%至30%的羟基官能单体和约62%至87%的非官能单体。 丙烯酸共聚物的特征还在于具有约-10℃至45℃的玻璃化转变温度和约2,000至约100,000的分子量。 氨基塑料树脂优选仅部分醚化并且含有约10重量%至约30重量%的反应性羟甲基。