| 摘要 |
A method for producing a condensation polymerization reaction polymer, comprising a guide polymerization step in which a molten prepolymer is supplied to the top edge of wire guides in a polymerization reactor for production of a condensation polymerization reaction polymer, and is allowed to drop while contacting the wire guides in conducting polymerization of the molten prepolymer and to obtain the condensation polymerization reaction polymer, the wire guides comprise a vertical wire group consisting of a plurality of vertical wires extending in the vertical direction, which are mutually spaced in alignment at an arrangement pitch L1 (mm). In the guide polymerization step, the molten prepolymer supplied from the top edge of the wire guides aggregates so that a molten prepolymer mass is formed on the vertical wire, and a molten prepolymer mass is formed wherein, the width of the molten prepolymer mass measured in an alignment direction of the vertical wires at a position 200 mm below the top edge being represented as L2 (mm), the width L2 (mm) of at least a portion of the molten prepolymer mass satisfies the relationship with L1 (mm) as defined by inequality (1) L1<L2. |
