| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of manufacturing a master batch capable of blending metal salt composition at high addition amount by suppressing reduction of viscosity of a polyester resin.SOLUTION: There is provided a method of manufacturing a master batch by blending 0.4 to 10 pts.mass of one or more kind of metal salt compound selected from a group consisting of a benzoic acid metal salt, an aliphatic carboxylic acid metal salt, an aromatic phosphoric ester metal salt, a sulfonamide compound metal salt and a sulfonimide compound metal salt with 100 pts.mass of a polyester resin where mixing by injecting the polyester resin and the metal salt compound into an extruder is conducted at a cylinder temperature of the extruder within a range of the melting point of the polyester resin-60°C to the melting point of the polyester resin-10°C. |
