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    • 88. 发明申请
    • BRANCHED POLYAMIDE WITH DIFFERENT BLOCKS
    • 分支聚酰胺与不同的块
    • US20140235798A1
    • 2014-08-21
    • US14130610
    • 2012-06-25
    • Nileshkumar Prakash KukalyekarZhujuan WangRudy RulkensGodefridus Ligthart
    • Nileshkumar Prakash KukalyekarZhujuan WangRudy RulkensGodefridus Ligthart
    • C08G81/00B29C49/00
    • C08G81/00B29C49/0005C08G69/28C08G69/30C08G69/36C08L77/00
    • The invention relates to a high molecular weight branched polyamide polymer comprising (a) blocks predominantly consisting of AA-BB repeat units, (b) blocks predominantly consisting of AB repeat units, and (c) branching units. The invention also relates to a process for the preparation of the high molecular weight branched polyamide polymer, comprising (1) a melt-mixing step wherein an essentially linear polyamide prepolymer (X-1), predominantly consisting of AA-BB repeat units, an essentially linear polyamide (pre)polymer (X-2), predominantly consisting of AB repeat units, and a branching agent are provided to and mixed and heated in a melt mixing apparatus, thereby forming a mixed melt, and the mixed melt being cooled, thereby forming a solid mixture; and (2) a solid state post condensation step wherein the solid mixture is post-condensed at elevated temperature in the solid state, thereby forming a high molecular weight branched polyamide polymer.
    • 本发明涉及一种高分子量支化聚酰胺聚合物,其包含(a)主要由AA-BB重复单元组成的嵌段,(b)主要由AB重复单元组成的嵌段,和(c)支化单元。 本发明还涉及制备高分子量支化聚酰胺聚合物的方法,其包括(1)熔融混合步骤,其中主要由AA-BB重复单元组成的基本上线性的聚酰胺预聚物(X-1), 提供主要由AB重复单元组成的基本上线性的聚酰胺(预)聚合物(X-2)和支化剂,并在熔融混合装置中混合并加热,从而形成混合熔体,并将混合的熔体冷却, 从而形成固体混合物; 和(2)固态后冷凝步骤,其中固体混合物在固体状态下在升高的温度下后冷凝,从而形成高分子量支化聚酰胺聚合物。