公开(公告)号：US20190315930A1

公开(公告)日：2019-10-17

申请号：US16341804

申请日：2018-06-21

Applicant: LG Chem, Ltd.

Inventor： Taehee Kim ,  Sewoo Yang ,  Ji Young Hwang ,  Gi Cheul Kim

IPC: C08J3/075 ,  C08J3/24 ,  C08J3/12 ,  B01J20/26 ,  B01J20/30 ,  B01J20/28

Abstract: The present invention relates to a method for preparing a superabsorbent polymer that progresses dry mixing of fine powders and a specific powder type of polymer binder when reassembling fine powders generated during the preparation process of a superabsorbent polymer, and thus obviates the necessity for a moisture drying process after reassembling fine powders, thereby reducing thermal losses, improving productivity, and obtaining a superabsorbent polymer having excellent basic absorption properties, and a superabsorbent polymer prepared by the method.

公开(公告)号：US11028237B2

公开(公告)日：2021-06-08

申请号：US16341804

申请日：2018-06-21

Applicant: LG Chem, Ltd.

Inventor： Taehee Kim ,  Sewoo Yang ,  Ji Young Hwang ,  Gi Cheul Kim

IPC: C08J3/075 ,  B01J20/26 ,  B01J20/28 ,  B01J20/30 ,  C08J3/12 ,  C08J3/24

Abstract: The present invention relates to a method for preparing a superabsorbent polymer that progresses dry mixing of fine powders and a specific powder type of polymer binder when reassembling fine powders generated during the preparation process of a superabsorbent polymer, and thus obviates the necessity for a moisture drying process after reassembling fine powders, thereby reducing thermal losses, improving productivity, and obtaining a superabsorbent polymer having excellent basic absorption properties, and a superabsorbent polymer prepared by the method.