发明授权
US5451452A Absorbent members and articles containing superabsorbent polymer foam
失效
吸收材料和含超吸收聚合物泡沫的制品
- 专利标题: Absorbent members and articles containing superabsorbent polymer foam
- 专利标题(中): 吸收材料和含超吸收聚合物泡沫的制品
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申请号: US249510申请日: 1994-05-26
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公开(公告)号: US5451452A公开(公告)日: 1995-09-19
- 发明人: Dean V. Phan , Paul D. Trokhan
- 申请人: Dean V. Phan , Paul D. Trokhan
- 申请人地址: OH Cincinnati
- 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: OH Cincinnati
- 主分类号: A61F13/53
- IPC分类号: A61F13/53 ; A61L15/24 ; A61L15/42 ; A61L15/60 ; C08F20/38 ; C08F20/52 ; C08F26/02 ; C08F28/00 ; C08F220/04 ; C08F220/38 ; C08F222/40 ; C08F226/02 ; C08F228/02 ; C08G59/40 ; C08G69/00 ; C08G69/04 ; C08J9/14 ; B32B27/00
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.
公开/授权文献
- US4373948A Addition agents for iron-base alloys 公开/授权日:1983-02-15
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