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    • 64. 发明授权
    • Copolyamide from 1,4-cyclohexane dicarboxylic acid and diamine mixture
    • 从1,4-环己烷二羧酸和二胺混合物中得到共聚酰胺
    • US4471088A
    • 1984-09-11
    • US393073
    • 1982-06-28
    • Kazumasa ChibaNobuo KatoKazuhiko Kobayashi
    • Kazumasa ChibaNobuo KatoKazuhiko Kobayashi
    • C08G69/26
    • C08G69/265
    • A copolyamide comprised of undecamethylenehexahydroterephthalamide units and hexamethylenehexahydroterephthalamide units having a trans isomer ratio of hexahydroterephthalic acid residues of 57 to 83 percent is provided. The copolyamide is suitable for injection and extrusion molding. The copolyamide is prepared by a process comprising heating an equimolar salt of undecamethylenediamine and hexahydroterephthalic acid and an equimolar salt of hexamethylenediamine and hexahydroterephthalic acid at a maximum temperature of about 280 to 360.degree. C. to stably melt-polymerize the copolyamide. A copolyamide molding composition comprised of the copolyamide and an inorganic reinforcing agent can be formed into various molded articles having excellent properties.
    • 提供由十六碳烯六氢对苯二甲酰胺单元和六对苯二甲酸残基的反式异构体比例为5-83%的六亚甲基六氢对苯二甲酰胺单元组成的共聚酰胺。 共聚酰胺适用于注射和挤出成型。 共聚酰胺通过包括在约280至360℃的最高温度下加热十一亚甲基二胺和六氢对苯二甲酸的等摩尔盐和六亚甲基二胺和六氢对苯二甲酸的等摩尔盐的方法来制备,以使共聚酰胺稳定地熔融聚合。 由共聚酰胺和无机增强剂组成的共聚酰胺模塑组合物可以形成为具有优异性能的各种模制品。