发明申请
US20160060418A1 PARTICULATE SUPERABSORBENT POLYMER COMPOSITION HAVING IMPROVED STABILITY AND FAST ABSORPTION
审中-公开
具有改进的稳定性和快速吸收的颗粒状超吸收聚合物组合物
- 专利标题: PARTICULATE SUPERABSORBENT POLYMER COMPOSITION HAVING IMPROVED STABILITY AND FAST ABSORPTION
- 专利标题(中): 具有改进的稳定性和快速吸收的颗粒状超吸收聚合物组合物
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申请号: US14781630申请日: 2014-04-07
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公开(公告)号: US20160060418A1公开(公告)日: 2016-03-03
- 发明人: Gonglu Tian , Matthew Thomas Ondisco , David L. Bergman , Bernfried Messner , Scott J. Smith , Michael M. Azad , Mark Joy
- 申请人: EVONIK CORPORATION
- 国际申请: PCT/US2014/033142 WO 20140407
- 主分类号: C08J9/224
- IPC分类号: C08J9/224
摘要:
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.
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