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    • 3. 发明授权
    • VERWENDUNG EINES FORMTEILS AUS EINER POLYAMIDFORMMASSE ALS INLINER FÜR EINE ROHRLEITUNG
    • VERWENDUNG EINES FORMTEILS AUS EINER POLYAMIDFORMMASSE ALS INLINERFÜREINE ROHRLEITUNG
    • EP2052010B1
    • 2009-12-30
    • EP07788158.9
    • 2007-08-02
    • Evonik Degussa GmbH
    • DOWE, AndreasGÖRING, RainerBARON, Christian
    • C08G69/00F16L58/10
    • C08G69/26F16L55/1656Y10T428/139Y10T428/1393
    • A pipe or hose composed of a polyamide moulding composition whose molecular weight has been increased by condensation, via addition of a compound having at least two carbonate units in a quantitative proportion of from 0.005 to 10% by weight, based on polyamide, where a) a starting polyamide moulding composition was provided, b) a mixture of the starting polyamide moulding composition and of the compound having at least two carbonate units was produced, c) the premix was, if desired, stored and/or transported, and d) the premix was then processed to give the moulding, this step being the first in which the increase of molecular weight by condensation occurred, the moulding being a pipe or hose whose external diameter is at least 25 mm is used as inliner for a pipeline.
    • 由聚酰胺模塑组合物构成的管子或软管,所述聚酰胺模塑组合物通过以0.005至10重量%的定量比例添加具有至少两个基于聚酰胺的碳酸酯单元的化合物,所述聚酰胺模塑组合物的分子量已经通过缩合而增加,其中a) 提供起始聚酰胺模塑组合物,b)制备起始聚酰胺模塑组合物和具有至少两个碳酸酯单元的化合物的混合物,c)如果需要,预混合物储存和/或运输,和d) 然后将预混合物加工成模制品,该步骤是第一次,其中通过冷凝发生分子量增加的第一步,使用外径至少为25mm的管道或软管作为管道的内衬。