发明名称 |
PARTICULATE SUPERABSORBENT POLYMER COMPOSITION HAVING IMPROVED STABILITY AND FAST ABSORPTION |
摘要 |
The present invention relates to a 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 the particulate superabsorbent polymer composition has a mean particle size distribution of from 300 to 400 μm, an original Free Swell Gel Bed Permeability (FSGBP) of about 20×10−8 cm2 to about 200×10−8 cm2; 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 having particles having a particle diameter of larger than 600 μm in an amount of less than about 15 wt % of the particulate superabsorbent polymer composition and as specified by standard sieve classification. |
申请公布号 |
EP2984125(A1) |
申请公布日期 |
2016.02.17 |
申请号 |
EP20140723245 |
申请日期 |
2014.04.07 |
申请人 |
EVONIK CORPORATION |
发明人 |
TIAN, GONGLU;ONDISCO, MATTHEW THOMAS;BERGMAN, DAVID, L.;MESSNER, BERNFRIED;SMITH, SCOTT J.;AZAD, MICHAEL, M.;JOY, MARK |
分类号 |
C08J3/12;A61L15/00;B01J20/00;C08F220/06;C08J3/24 |
主分类号 |
C08J3/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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