MELT PRODUCTION OF A THERMOPLASTICALLY PROCESSIBLE AROMATIC POLYAMIDE WITH PHOSPHORUS COMPOUND CATALYST AND METAL SALT CATALYST

摘要

Aromatic polyamides with an improved stability toward thermal oxidation was achieved by polycondensation being performed in the presence of 0.05 to 4 mol % of a catalyst comprising a mixture of phosphorus compounds and metal salts. With the process according to the invention, it is possible to obtain aromatic polyamides stable toward thermal oxidation.