Process for producing polyester composition
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United States of America Patent
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Mar 26, 2002
Grant Date -
N/A
app pub date -
Apr 21, 1998
filing date -
Apr 23, 1997
priority date (Note) -
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Abstract
A process for producing a polyester composition, comprising polyester and a metal salt of an aliphatic carboxylic acid, whereby a metal salt and polyester are fed together into a vented extruder as a raw material. The raw material has a specific resistance of not less than 1.times.10.sup.7 .OMEGA..multidot.cm upon melting and a metal atom concentration of 0.5 to 1,000 ppm based on the polyester composition. This process is industrially useful for producing a polyester composition which can be used to form sheets using an electrostatic pining method.
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