METHOD FOR PREPARING POLYCONDENSATION RESIN

• Main Authors: JANG, BOK NAM, JANG, SEUNG HYUN, KANDA TOMOMICH
• Format: Patent
• Language: English; Korean
• Published: 26.06.2013
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

PURPOSE: A polycondensation resin manufacturing method is provided to efficiently prepare a high quality polycondensation resin that is not damaged by fusions between lower order condenstates themselves or scaling in a pipe of the lower order condensates. CONSTITUTION: A polycondensation resin manufacturing method including a process of solid polymerizing a crystalline pulverulent body of a lower order condensate, wherein the method comprises the following steps of: preparing the crystalline pulverulent body of a lower order condensate; mixing the obtained crystalline pulverulent body of a lower order condensate and a granular molding body of a thermoplastic resin; and solid-polymerizing 'the pulverulent body of a lower order condensate and the granular molding body of the thermoplastic resin'. A mixed amount of the granular molding body of the thermoplastic resin is 0.1 to 10wt% based on the crystalline pulverulent body of a lower order condensate.