公开(公告)号：US20200325346A1

公开(公告)日：2020-10-15

申请号：US16912790

申请日：2020-06-26

Applicant: AGC Inc.

Inventor： Lei LUO ,  Zhehong Wang ,  Ken Iruya

IPC: C09D5/03 ,  C09D167/00 ,  B29C48/52 ,  B29C48/04

Abstract: The present invention relates to a method of producing a powder coating material containing a fluororesin and a non-fluororesin. The method of producing a powder coating material includes kneading a raw material containing the fluororesin and the non-fluororesin with a kneading extruder equipped with a screw having a kneading zone, wherein a ratio of a length LK of the kneading zone to an effective length LS of the screw (LK/LS×100) is 21.0 to 50.0%.