Patent ID: 9221946
Filing Date: 2015-12-29
Classification: B29C,B29K,C08G

Abstract:
1. A method of producing a polybutylene terephthalate resin pellet, comprising: reacting a polybutylene terephthalate resin (A) and a reactive compound (B) that is reactive with the polybutylene terephthalate resin (A) in an extruder under production conditions satisfying the following inequality expression (I): wherein, T die represents resin temperature in degrees Celsius when the resin is discharged from a die, T cylinder represents cylinder temperature in degrees Celsius, Q represents extrusion output in kilograms/hour (kg/hr), Ns represents screw speed in revolutions per minute (rpm), and T m represents the melting point of the polybutylene terephthalate resin (A) in degrees Celsius and wherein the units on the bounds of the inequality are consistent with the above units.