发明公开
- 专利标题: SUPERABSORBENT POLYMER FOAM
- 专利标题(中): SUPERABSORBIERENDES POLYMERSCHAUM
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申请号: EP94912242.0申请日: 1994-03-18
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公开(公告)号: EP0690729A1公开(公告)日: 1996-01-10
- 发明人: PHAN, Dean, Van , TROKHAN, Paul, Dennis
- 申请人: THE PROCTER & GAMBLE COMPANY
- 申请人地址: One Procter & Gamble Plaza Cincinnati, Ohio 45202 US
- 专利权人: THE PROCTER & GAMBLE COMPANY
- 当前专利权人: THE PROCTER & GAMBLE COMPANY
- 当前专利权人地址: One Procter & Gamble Plaza Cincinnati, Ohio 45202 US
- 代理机构: Hirsch, Uwe Thomas, et al
- 优先权: US19930038580 19930326
- 国际公布: WO1994022502 19941013
- 主分类号: A61F13
- IPC分类号: A61F13 ; A61L15 ; C08F20 ; C08F26 ; C08F28 ; C08F220 ; C08F222 ; C08F226 ; C08F228 ; C08G59 ; C08G69 ; C08J9
摘要:
An improved superabsorbent polymer foam having a morphology to provide improved absorptive properties is disclosed. The foam preferably comprises a superabsorbent polymer formed from a substantially water-soluble, unsaturated monomer having neutralized carboxyl groups and a substantially water-soluble internal crosslinking agent. The monomer and crosslinking agent are expanded in the presence of a substantially water-insoluble blowing agent and a suitable solvent and reacted to form a superabsorbent polymer foam having substantially continuous, intercommunicating channels substantially throughout the foam and a relatively high surface area to mass ratio. Methods for making the foam and absorbent products, members and articles containing the foam are also disclosed.
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