发明公开
- 专利标题： SUPERABSORBENT POLYMER HAVING INCREASED RATE OF WATER ABSORPTION
- 专利标题（中）： 超级溶剂聚合物麻醉药
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申请号： EP04814478.6申请日： 2004-12-16
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公开(公告)号： EP1694372A1公开(公告)日： 2006-08-30
- 发明人: JOY, Mark, C. , HSU, Whei-Neen
- 申请人： Stockhausen, Inc.
- 申请人地址： 2401 Doyle Street Greensboro, North Carolina 27406 US
- 专利权人： Stockhausen, Inc.
- 当前专利权人： Stockhausen, Inc.
- 当前专利权人地址： 2401 Doyle Street Greensboro, North Carolina 27406 US
- 代理机构： Herzog, Martin
- 优先权： US741271 20031219
- 国际公布： WO2005063313 20050714
- 主分类号： A61L15/60
- IPC分类号： A61L15/60 ; A61F13/15
摘要：
The invention relates to a superabsorbent polymer wherein an increased rate of water absorption is obtained by the addition of an encapsulated blowing agent. The invention relates to a superabsorbent polymer including an encapsulating blowing agent and having a vortex time of 40 seconds or less. In particular, the superabsorbent polymer includes from about 55 to about 99.9 wt.% of polymerizable unsaturated acid group containing monomers; from about 0.001 to about 5.0 wt.% of internal crosslinking agent; wherein the composition has a degree of neutralization of more than about 20 %; and from about 0.05 to about 10.0 wt.% of an encapsulated blowing agent.
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