| abstract |
Cobalt / aluminum catalysts for the polymerization of polyesters of terephthalic acid and ethylene glycol, methods of making such catalysts, methods of polymerization of terephthalic acid and ethylene glycol, methods of spinning such polyesters that reduce the need for spinneret cleaning, and of cobalt / aluminum Fibers of such polyesters containing catalyst residues, and films or bottles of said polyesters. |