发明名称 |
Superabsorbent polymer having increased rate of water absorption |
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 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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申请公布号 |
US2005137546(A1) |
申请公布日期 |
2005.06.23 |
申请号 |
US20030741271 |
申请日期 |
2003.12.19 |
申请人 |
JOY MARK C.;HSU WHEI-NEEN |
发明人 |
JOY MARK C.;HSU WHEI-NEEN |
分类号 |
A61F13/15;A61L15/60;(IPC1-7):A61F13/15;A61F13/20 |
主分类号 |
A61F13/15 |
代理机构 |
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