Process for the preparation of a thermoplastically...

Details Process for the preparation of a thermoplastically... Process for the preparation of a thermoplastically...

C - Chemistry, Metallurgy

08

G

402/237, 402/319

C08G 69/32 (2006.01) C08G 69/28 (2006.01) C08G 69/42 (2006.01)

Patent

CA 2028301

23443-428 Abstract A process for the preparation of thermoplastically processable aromatic polyamide by polycondensation of (A) HOOC-Ar-COOH and (B) H2N-Ar'-NH2, wherein Ar is, for example, 1,3- or 1,4-phenylene and Ar' is Image wherein X is -SO2- or -CO- and Y is -O- or -S-, in the melt at a temperature of from 200 to 400°C, in the presence of a catalyst and in a molar excess of component (A) relative to component (B). The polyamides so obtained have an improved resistance to thermo- oxidation and hydrolysis and are useful in moulding compositions.

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