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    • 42. 发明授权
    • Production of reinforced polytetramethyleneadipamide
    • 生产增强聚四亚甲基己二胺
    • US5332778A
    • 1994-07-26
    • US97909
    • 1993-07-28
    • Gunter PipperWalter Goetz
    • Gunter PipperWalter Goetz
    • C08G69/28C08L77/06C08G69/30C08K3/40
    • C08G69/28C08L77/06
    • A process for producing nylon-4,6 which is filled with a reinforcing agent by mixing a reinforcing agent with nylon-4,6 in the melt comprises the steps ofa) polycondensing a salt of 1,4-diaminobutane and adipic acid in the presence of excess 1,4-diaminobutane and water at polyamide-forming temperatures under superatmospheric pressure to give a precondensate having a relative viscosity .ltoreq.1.60,b) polycondensing the precondensate of a) in solid phase in the presence of steam at 220.degree.-270.degree. C. to obtain a nylon-4,6 having a relative viscosity of from 2.0 to 2.6,c) incorporating a reinforcing agent in the melt into nylon-4,6 from stage b) to obtain a nylon-4,6 filled with a reinforcing agent,d) polycondensing said filled nylon-4,6 in solid phase in the presence of steam at 220.degree.-270.degree. C. to a relative viscosity of at least 3.2.
    • 通过将增强剂与尼龙-4.6混合在熔体中而填充有增强剂的尼龙4,6的方法包括以下步骤:a)将1,4-二氨基丁烷和己二酸的盐缩聚在 在超大气压下在聚酰胺形成温度下存在过量的1,4-二氨基丁烷和水,得到相对粘度<1.60的预缩合物,b)在220℃的蒸气存在下使固相中的a)的预缩合物缩聚 -270℃,得到相对粘度为2.0〜2.6的尼龙-4,6,c)将熔融物中的增强剂加入到步骤b)中的尼龙4,6中,得到尼龙4,6 填充有增强剂,d)在220-270℃的蒸气存在下将固体状的所述填充尼龙4,6的聚缩聚物至少为3.2的相对粘度。
    • 46. 发明授权
    • Thermoplastic molding materials based on polyamide blends
    • 基于聚酰胺混合物的热塑性模塑材料
    • US5071924A
    • 1991-12-10
    • US376502
    • 1989-07-07
    • Eckhard M. KochGerhard HeinzWalter GoetzGunter Pipper
    • Eckhard M. KochGerhard HeinzWalter GoetzGunter Pipper
    • C08L21/00C08L77/00
    • C08L77/00
    • Thermoplastic molding materials contain, as essential components,A) 20-98% by weight of a partly aromatic amide copolymer essentially consisting ofa.sub.1) 40-90% by weight of units derived from terephthalic acid and hexamethylenediamine,a.sub.2) 0-50% by weight of units derived from .epsilon.-caprolactam anda.sub.3) 0-60% by weight of units derived from adipic acid and hexamethylenediamine,components a.sub.2) and/or a.sub.3) accounting altogether for not less than 10% by weight of the total number of units,B) 2-80% by weight of a partly crystalline thermoplastic polyamide which differs from A)and furthermoreC) 0-50% by weight of an elastomeric impact modifier andD) 0-60% by weight of fibrous or particulate fillers or a mixture of these.
    • 热塑性成型材料含有A)20-98重量%的部分芳族酰胺共聚物,其基本上由a1)40-90重量%的衍生自对苯二甲酸和六亚甲基二胺的单元组成,a2)0-50% 衍生自ε-己内酰胺的单元的重量和a3)0-60重量%衍生自己二酸和六亚甲基二胺的单元,组分a2)和/或a3)总计占总单元重量的10重量% B)2-80重量%的不同于A)的部分结晶的热塑性聚酰胺,此外C)0-50重量%的弹性体抗冲改性剂和D)0-60重量%的纤维或颗粒填料或 这些的混合物。