公开(公告)号：US11370719B2

公开(公告)日：2022-06-28

申请号：US16646959

申请日：2018-09-13

Applicant: LG CHEM, LTD.

Inventor： Mihee Kim ,  Hyosook Joo ,  Eun Kyoung Park ,  Hyeon Choi ,  Kiyoul Yoon ,  Joon Seok Lee

IPC: C05G3/40 ,  C05G5/12 ,  C05G5/30

Abstract: The present invention relates to a controlled-release type fertilizer with outstandingly decreased floating property, comprising a granular fertilize core; a coating layer (shell) formed on the surface of the granular fertilizer core, and comprising olefin-based resin; and additives attached on the coating layer, and comprising ethylene oxide-propylene oxide-ethylene oxide(EO-PO-EO) or propylene oxide-ethylene oxide-propylene oxide(PO-EO-PO) tri-block copolymer.

公开(公告)号：US12263466B2

公开(公告)日：2025-04-01

申请号：US18514061

申请日：2023-11-20

Applicant: LG Chem, Ltd.

Inventor： Kiyoul Yoon ,  Hyeon Choi ,  Hyosook Joo ,  Gicheul Kim ,  Ju Eun Kim

IPC: B01J20/26 ,  B01J20/28 ,  B01J20/30

Abstract: The present disclosure relates to a preparing method of a super absorbent polymer sheet and a super absorbent polymer sheet prepared therefrom. The preparing method of a super absorbent polymer sheet of the present disclosure may prepare a porous flexible super absorbent polymer sheet exhibiting high flexibility and fast absorption rate.

公开(公告)号：US11857946B2

公开(公告)日：2024-01-02

申请号：US16772473

申请日：2018-12-14

Applicant: LG Chem, Ltd.

Inventor： Kiyoul Yoon ,  Hyeon Choi ,  Hyosook Joo ,  Gicheul Kim ,  Ju Eun Kim

IPC: B01J20/26 ,  B01J20/28 ,  B01J20/30

CPC classification number: B01J20/267 ,  B01J20/28033 ,  B01J20/3064 ,  B01J20/3085

Abstract: The present disclosure relates to a preparing method of a super absorbent polymer sheet and a super absorbent polymer sheet prepared therefrom. The preparing method of a super absorbent polymer sheet of the present disclosure may prepare a porous flexible super absorbent polymer sheet exhibiting high flexibility and fast absorption rate.

公开(公告)号：US20230071674A1

公开(公告)日：2023-03-09

申请号：US17797004

申请日：2021-03-23

Applicant: LG Chem, Ltd.

Inventor： Kiyoul Yoon ,  Seongkyun Kang ,  Yu Jin Kim ,  Gicheul Kim ,  Hyosook Joo ,  Hyeon Choi ,  Se Yeol Park

IPC: C08J5/18 ,  C08F20/06 ,  C08J3/24 ,  C08J3/075 ,  C08F2/44 ,  C08F2/50 ,  B01J20/28 ,  B01J20/26 ,  B01J20/30 ,  B01J20/32

Abstract: The present disclosure relates to a preparation method for a super absorbent polymer film. Specifically, it relates to a preparation method for a new type of super absorbent polymer film, which is thin and exhibits excellent absorption performance. In addition, the super absorbent polymer film of the present disclosure has excellent flexibility and excellent mechanical properties, is free from scattering or leaking, and does not require an auxiliary substance such as pulp, so that products can be made thinner and the manufacturing process and costs may be reduced.