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    • 2. 发明授权
    • Thermoplastic plasticizer-containing polyamides
    • 含热塑性增塑剂的聚酰胺
    • US4987168A
    • 1991-01-22
    • US364252
    • 1989-06-09
    • Franz Kerschbaumer
    • Franz Kerschbaumer
    • C08K5/29C08L77/00
    • C08K5/29C08L77/00
    • Molding compositions of thermoplastic plasticizer-containing polyamides exhibit greatly reduced migration of plasticizer or no migration at all due to having 0.1 to 20% by weight of sterically hindered carbodiimides of the formulaR.sub.1 --N.dbd.C.dbd.N--[R.sub.2 --N.dbd.C.dbd.N].sub.2 --R.sub.3wherein n is 0 to 100; R.sub.1 and R.sub.3 are individually a monovalent radical taken from the class consisting of aliphatic having 1 to 20 carbon atoms, cycloaliphatics having 6 to 20 carbon atoms, and aromatics having 8 to 20 carbon atoms and also having substituents; and R.sub.2 is a divalent radical taken from the class consisting of aliphatics having 1 to 20 carbon atoms, cycloaliphatic having 6 to 20 carbon atoms, and aromatics having 8 to 20 carbon atoms and also having substituents.
    • 含有热塑性增塑剂的聚酰胺的成型组合物显示出大大降低了增塑剂的迁移或根本没有迁移,这归因于具有式R 1 -N = C = N- [R2-N = C = N] 2-R 3,其中n为0至100; R 1和R 3分别是从具有1至20个碳原子的脂族,具有6至20个碳原子的脂环族和具有8至20个碳原子并且也具有取代基的芳族化合物组成的一类基团; R2是从具有1至20个碳原子的脂族基团,具有6至20个碳原子的脂环族基团和具有8至20个碳原子并具有取代基的芳烃取代的二价基团。