Partially aromatic copolyamides with a high crystallinity

Details Partially aromatic copolyamides with a high crystallinity Partially aromatic copolyamides with a high crystallinity

C - Chemistry, Metallurgy

08

G

C08G 69/26 (2006.01)

Patent

CA 2642925

The invention relates to partially aromatic, partially crystalline thermoplastic polyamide moulding compounds containing: A) between 40 and 100 wt. % of a copolyamide consisting of a1) between 30 and 44 mol % of units derived from terephthalic acid, a2) between 6 and 20 mol % of units derived from isophthalic acid, a3) between 42 and 49.5 mol % of units derived from hexamethylene diamine, and a4) between 0.5 and 8 mol % of units derived from aromatic diamines having between 6 and 30 C atoms, the mol percentage of constituents a1) to a4) amounting to 100; B) between 0 and 50 wt % of a fibrous and particulate filler; C) between 0 and 30 wt. % of a rubber-elastic polymer; and D) between 0 and 30 % of other additives and auxiliary products, the weight percentage of constituents A) to D) amounting to 100.

L'invention concerne des matières moulables de polyamide thermoplastiques, partiellement aromatiques et partiellement cristallines, contenant: A) 40 à 100% en poids d'un copolyamide comprenant a1) 30 à 44% mol de motifs dérivant de l'acide téréphtalique, a2) 6 à 20% mol de motifs dérivant de l'acide isophtalique, a3)42 à 49,5% mol de motifs dérivant de l'hexaméthylènediamine, a4) 0,5 à 8% mol de motifs dérivant de diamines aromatiques de 6 à 30 atomes de C, le pourcentage molaire des composants a1) à a4) s'élevant à 100%, et B) 0 à 50% en poids d'une matière de charge fibreuse ou particulaire, C) 0 à 30% en poids d'un polymère ayant l'élasticité du caoutchouc, D) 0 à 30% en poids d'autres adjuvants et auxiliaires de traitement, le pourcentage en poids des composants A) à D) s'élevant à 100%.

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