Invention Grant
- Patent Title: Super absorbent polymer
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Application No.: US15770375Application Date: 2017-01-10
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Publication No.: US10821418B2Publication Date: 2020-11-03
- Inventor: Dae Woo Nam , Chang Sun Han , Hyemin Lee , Hwayoon Jung , Hyung Ki Yoon
- Applicant: LG Chem, Ltd.
- Applicant Address: KR
- Assignee: LG Chem, Ltd.
- Current Assignee: LG Chem, Ltd.
- Current Assignee Address: KR
- Agency: Lerner, David, Littenberg, Krumholz & Mentlik, LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@7906627b com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@4f3461b5
- International Application: PCT/KR2017/000337 WO 20170110
- International Announcement: WO2017/142204 WO 20170824
- Main IPC: B32B5/16
- IPC: B32B5/16 ; B01J20/26 ; C08F20/06 ; C08K3/36 ; A61L15/60 ; C08F4/40 ; C08J3/24 ; C08J3/075 ; B01J20/10 ; B01J20/28 ; C08K5/09 ; C08K5/00

Abstract:
The present invention relates to a super absorbent polymer exhibiting more improved liquid permeability and/or absorption rate while maintaining excellent absorption performance. Such super absorbent polymer comprises a base polymer powder including a first cross-linked polymer of a water-soluble ethylenically unsaturated monomer having at least partially neutralized acidic groups; and a surface cross-linked layer formed on the base polymer powder and including a second cross-linked polymer in which the first cross-linked polymer is further cross-linked through an alkylene carbonate having 2 to 5 carbon atoms, and satisfies predetermined physical properties.
Public/Granted literature
- US20180304232A1 SUPER ABSORBENT POLYMER Public/Granted day:2018-10-25
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