Invention Grant
- Patent Title: Particulate superabsorbent polymer composition having improved stability and fast absorption
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Application No.: US14781630Application Date: 2014-04-07
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Publication No.: US10307732B2Publication Date: 2019-06-04
- Inventor: Gonglu Tian , Matthew Thomas Ondisco , David L. Bergman , Bernfried Messner , Scott J. Smith , Michael M. Azad , Mark Joy
- Applicant: EVONIK CORPORATION
- Applicant Address: US NJ Parsippany
- Assignee: Evonik Corporation
- Current Assignee: Evonik Corporation
- Current Assignee Address: US NJ Parsippany
- Agent Bernard Lau; Linda S. Li; Jason S. Ngui
- International Application: PCT/US2014/033142 WO 20140407
- International Announcement: WO2014/168858 WO 20141016
- Main IPC: C08J9/224
- IPC: C08J9/224 ; B01J20/32 ; B01J20/26 ; C08J3/12 ; C08J3/24 ; C08F220/06 ; A61L15/18 ; A61L15/60

Abstract:
The present invention relates to a fast particulate superabsorbent polymer composition comprising a polymer comprising a neutralized aluminum salt solution applied to the surface of a particulate superabsorbent polymer; wherein an aqueous solution of the neutralized aluminum salt has a pH value from about 5.5 to about 8; and subsequent to subjecting the particulate superabsorbent polymer composition to the Processing Test, the particulate superabsorbent polymer composition has a permeability stability index of from about 0.60 to about 0.99, and a compressibility from 1.30 mm2/N to about 4 mm2/N as measured by the Compression Test, and wherein the particulate superabsorbent polymer composition may have a Vortex time of from 25 to 60 seconds and absorbency under load at 0.9 psi of from 15 to 21 g/g.
Public/Granted literature
- US20160060418A1 PARTICULATE SUPERABSORBENT POLYMER COMPOSITION HAVING IMPROVED STABILITY AND FAST ABSORPTION Public/Granted day:2016-03-03
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