| 摘要 |
PROBLEM TO BE SOLVED: To provide a manufacturing method for a polyester composition, a sheet and a film suitable for the static bonding method adopted at the time of a non-crystalline state by adding metal salt into polyester with high accuracy in the specified concentration range. SOLUTION: When a vent type biaxial extruder is used and polyester of specified resistance at the melting time of 1×10<7>Ωcm or more and aliphatic carboxylic metal salt are melt extruded in a manufacturing method for a polyester composition composed of polyester and aliphatic carboxylic acid metal salt, at least parts of polyester and aliphatic carboxylic acid are added respectively and individually from the same raw material introduction opening. |
