公开(公告)号：US10052806B2

公开(公告)日：2018-08-21

申请号：US15129675

申请日：2015-03-30

申请人： TORAY INDUSTRIES, INC.

发明人： Kunihiko Miyauchi ,  Toshio Kurematsu ,  Hiroki Hiraoka

IPC分类号： B29B9/06 ,  B29K67/00 ,  B29C47/00

CPC分类号： B29C48/03 ,  B29B9/06 ,  B29B9/12 ,  B29B9/14 ,  B29C48/022 ,  B29C48/04 ,  B29C48/05 ,  B29C48/911 ,  B29C2793/0027 ,  B29C2793/009 ,  B29K2067/00 ,  B29K2995/0041

摘要： A manufacturing apparatus for liquid crystalline polyester resin pellets that is provided with: a die head with a discharge port for discharging melted liquid crystalline polyester resin supplied to the die head from a reactor through a valve; a cutter for cutting the resin discharged from the die head and solidified; and at least one perforated plate located downstream of the valve and upstream of the discharge port. The hole diameters of a plurality of die holes provided in the discharge port are 3 mm-6 mm and the average hole diameter in the perforated plate is 0.1-1.2 times the hole diameter of the die holes. A manufacturing method for liquid crystalline polyester resin pellets for cutting liquid crystalline polyester resin, which has been discharged from the die head of said apparatus via the discharge port so as to form groups of strands and solidified, into pellet form. Provided is a manufacturing method for liquid crystalline polyester resin pellets, the method having excellent discharge stability and being able to improve productivity of continuous batch polymerization and pellet quality in the step for discharging the melted resin as groups of strands.