POLYESTER RESIN, MOLDED ARTICLES THEREOF, AND PROCESS FOR PRODUCTION OF THE ARTICLES

摘要

An aromatic polyester resin comprising as the main component repeating units derived from an aromatic dicarboxylic acid and a glycol, characterized by a variance ratio (Mw/Mn) of molecular weight distribution of 3.00 or above. This resin is improved in flow characteristics and therefore little generates aldehydes in molding. Further, the resin can give molded articles excellent in mechanical characteristics such as pressure resistance and permits efficient production of molded articles (particularly blow molded articles) excellent in dimensional stability under heat by high-speed molding with little molding strain. Additionally, the resin little stains a mold and is excellent in long-time continuous molding properties, and the stretched blow molded articles made from the resin is excellent in the retention of aroma and taste.