C - Chemistry – Metallurgy – 08 – G
Patent
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 2028304
23443-427 Abstract A process for the preparation of a thermoplastically processable aromatic polyamide by polycondensation of (A) HOOC-Ar-COOH and (B) H2N-Ar1-NH2, wherein Ar is, for example, 1,3- or 1,4-phenylene and Ar1 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 and in the presence of 0.05 to 4 mol % of a catalyst which is composed of a mixture of a phosphorus compound and a tin(II) compound. The polyamides so obtained have an improved resistance to thermooxidation and are useful in moulding compositions.
Bartmann Martin
Finke Jurgen
Poll Gunter
Bartmann Martin
Fetherstonhaugh & Co.
Finke Jurgen
Huls Aktiengesellschaft
Poll Gunter
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