发明名称 |
VERFAHREN ZUR HERSTELLUNG EINES WASSERQUELLBAREN MATERIALS MIT BESCHICHTETEN WASSERQUELLBAREN POLYMEREN |
摘要 |
<p>This invention is directed to a process for making solid, typically particulate, water-swellable material comprising coated water-swellable, preferably hydrogel-forming polymers, which are coated with a coating agent, which is such that it does not rupture when the polymers swell in a liquid, e.g., water or saline water. Hereto, the coating agent is extensible in wet state and comprises thereto a wet-extensible material that has a tensile stress at break in the wet state of at least 1 MPa. Typically, the coating agent comprises thereto an elastomeric polymeric material. The invention also relates to solid (particulate) water-swellable material obtainable by the process of the invention.</p> |
申请公布号 |
DE602004032349(D1) |
申请公布日期 |
2011.06.01 |
申请号 |
DE20046032349T |
申请日期 |
2004.08.05 |
申请人 |
THE PROCTER & GAMBLE COMPANY |
发明人 |
SCHMIDT, MATTIAS;MEYER, AXEL;FOSSUM, RENAE DIANNA;EHRNSPERGER, BRUNO JOHANNES;GOLDMAN, STEPHEN ALLEN;DIVO, MICHAEL;URANKAR, EDWARD |
分类号 |
A61L15/00;A61F13/15;A61F13/20;A61L15/42;A61L15/60;B32B5/16;C08J3/12;C08J7/04;C08J9/00;C08K3/00 |
主分类号 |
A61L15/00 |
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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