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    • 75. 发明授权
    • Powder coating composition
    • 粉末涂料组合物
    • US4119679A
    • 1978-10-10
    • US840777
    • 1977-10-11
    • Hiroshi NishizawaShigeyoshi TanakaMinoru Fujishima
    • Hiroshi NishizawaShigeyoshi TanakaMinoru Fujishima
    • C08G63/127C09D5/46C09D167/00C08L67/02C08L63/00
    • C08G63/127C09D167/00
    • A powder coating composition which comprises a mixture of in a given proportion(A) a polyester resin which contains hydroxyl groups as functional group and contains at least 80 mol.% of an aromatic polycarboxylic acid component in the polycarboxylic acid component of said polyester resin, said polyester resin having a softening point of 50.degree.-180.degree. C,(b) a polyacyl-(N-lactam) compound or a polyacyl-(N-imide) compound having a softening point above 40.degree. and(C) a said epoxy resin.The powder coating composition has a very good storage stability, free flowability at room temperature and exhibits good melt flow characteristics when heated above 130.degree. C for baking. Coating films prepared from this powder coating composition are excellent in the mechanical resistance, corrosion resistance, solvent resistance and luster.
    • 一种粉末涂料组合物,其包含在所述聚酯树脂的多元羧酸组分中以给定比例(A)含有羟基作为官能团并且含有至少80mol%的芳族多元羧酸组分的芳族多元羧酸组分的聚酯树脂的混合物, 所述软化点为50-180℃的聚酯树脂,(B)软化点高于40℃的聚酰基 - (N-内酰胺)化合物或聚酰基 - (N-酰亚胺)化合物,和(C)所述 环氧树脂。
    • 76. 发明授权
    • Thermosetting coating composition comprising a hydroxy acrylate ester
copolymer and N-acylpolylactam or N-acylpolyimide
    • 包含羟基丙烯酸酯共聚物和N-酰基内酰胺或N-酰基聚酰亚胺的热固性涂料组合物
    • US4022955A
    • 1977-05-10
    • US592182
    • 1975-07-01
    • Hiroshi NishizawaMinoru Fuzishima
    • Hiroshi NishizawaMinoru Fuzishima
    • C09D5/03C08K5/34C09D157/04C08F120/00C08F8/32C08F220/00C08F220/04
    • C09D157/04C08K5/34
    • When an N-acylpolylactam or N-acylpolyimide compound is incorporated into an acrylic copolymer containing as a functional group a hydroxyl group, a thermosetting resinous composition suitable for the production of a paint, especially a powder paint, is obtained. A powder paint prepared from this resinous composition does not cause blocking below 50.degree. C. and therefore, it has a very good storage stability. The powder paint has a free flowability at room temperature and exhibits good melt flow characteristics when heated above 130.degree. C. for baking. Coating films prepared from this coating composition are excellent in the mechanical resistance, adhesion to the substrate, weather resistance, corrosion resistance and solvent resistance. When said acrylic copolymer further contains as a functional group a carboxyl or glycidyl group, the resulting resinous composition has further improved properties useful for a paint.
    • 当将N-酰基内酰胺基或N-酰基聚酰亚胺化合物引入含有作为官能团的羟基的丙烯酸共聚物中时,得到适于制备涂料,特别是粉末涂料的热固性树脂组合物。 由该树脂组合物制备的粉末涂料不会在50℃以下产生阻塞,因此具有非常好的储存稳定性。 粉末涂料在室温下具有自由流动性,并且当加热至130℃以上时,其表现出良好的熔体流动特性,用于烘烤。 由该涂料组合物制备的涂膜的机械性,对基材的粘附性,耐候性,耐腐蚀性和耐溶剂性优异。 当所述丙烯酸共聚物还含有羧基或缩水甘油基作为官能团时,所得树脂组合物具有进一步改进的用于涂料的性能。