abstract |
THERMOPLASTIC POLYESTERS, AND METHOD OF MAKING HOLLOW ARTICLES THEREFROM ABSTRACT Disclosed are new copolyesters of terephthalic acid, bis(4-.beta.-hydroxyethoxyphenyl)sulfone, ethylene glycol and a very æmall amount of trimellitic acid, particularly useful as molding compounds, especially for the extrusion-blow molding process of making hollow articles, and a method of making hollow articles. |