A resin composition comprises (A) 100 parts by mass of a resin selected from the group consisting of polyamides, polylactic acids, and polyphenylene sulfides each having a melting point of 170° C. to 370° C., (B) 0.05 to 5.0 parts by mass of a triazine compound represented by the disclosed general formula (1), preferred examples of which are compounds of the formula:
wherein RA, RB, RC, and RD, which may be the same or different, each represent a hydrogen atom or a C1-C4 alkyl group, (C) 0 to 3.0 parts by mass of at least one compound selected from the group consisting of 2,2′-methylenebis[6-(2H-benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl)phenol], 2-[3-hydroxy-4-(4,6-diphenyl-1,3,5-triazin-2-yl)phenoxy]ethyl 2-ethylhexanoate, and 2,4,6-tris(2-hydroxy-4-hexyloxy-3-methylphenyl)-1,3,5-triazine, and (D) 0 to 1.0 part by mass of a light stabilizer being particulate at room temperature (25° C.). The resin composition is useful for making molded articles having improved heat resistance and weatherability.
一种
树脂组合物包括:(A) 100 份(按重量计)选自聚酰胺、聚
乳酸和
聚苯硫醚组的
树脂,每种
树脂的熔点在 170°C 至 370°C 之间;(B) 0.05 至 5.0 份(按重量计)由已公开的通式(1)代表的三嗪化合物,其中优选的实例为通式(1)的化合物;(C) 0.05 至 5.0 份(按重量计)由已公开的通式(2)代表的三嗪化合物,其中优选的实例为通式(2)的化合物:
其中 RA、RB、RC 和 RD 可以相同或不同,各自代表氢原子或 C1-C4 烷基, (C) 0 至 3.0质量份的至少一种选自以下组别的化合物:2,2′-亚甲基双[6-(2H-苯并三唑-2-基)-4-(1,1,3,3-四甲基丁基)
苯酚]、2-[3-羟基-4-(4,6-二
苯基-1,3,5-三嗪-2-基)苯氧基]乙基
己酸酯和 2,4,6-三(2-羟基-4-己氧基-3-甲基苯基)-
1,3,5-三嗪,以及 (D) 0 至 1.0质量份的
光稳定剂,在室温(25°C)下为颗粒状。该
树脂组合物可用于制造具有更好的耐热性和耐候性的模塑制品。