| Original document(49 pages) 中文版 |
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 1MPa. 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. |
Application Number
申请号 |
200480022576 |
Application Date
申请日 |
2004.08.05 |
| Title 名称 |
Process for making water-swellable material comprising coated water-swellable polymers
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Publication Number
公开号 |
1832767 |
Publication Date
公开日 |
2006.09.13 |
| Approval Pub. Date |
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Granted Pub. Date |
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| International Classification 分类号 |
A61L15/00,A61L15/60,A61L15/42,C08J9/00 |
Applicant(s) Name
申请人 |
Procter & Gamble |
| Address 地址 |
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| Inventor(s) Name 发明人 |
Schmidt Mattias, Meyer Axel, Fossum Renae Dianna, Ehrnsperger Bruno Johannes, Goldman Stephen Allen, Divo Michael |
| Attorney & Agent 代理人 |
bian xinqin wu xiaonan |
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