| 摘要 |
<p>A cobalt/aluminum catalyst for the polymerization of polyesters of terephthalic acid and an ethylene glycol, a process for the preparation of such catalysts, a process for the polymerization of terephthalic acid and an ethylene glycol, a process of spinning fibers of such polyesters where reduced spinneret wiping is achieved, and fibers of such polyesters containing catalyst residues of cobalt/aluminum, and films or bottles of said polyesters.</p> |
