发明授权
US5331015A Absorbent foam materials for aqueous body fluids and absorbent articles
containing such materials
失效
用于含水体液的吸收泡沫材料和含有此类材料的吸收制品
- 专利标题: Absorbent foam materials for aqueous body fluids and absorbent articles containing such materials
- 专利标题(中): 用于含水体液的吸收泡沫材料和含有此类材料的吸收制品
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申请号: US156858申请日: 1993-11-23
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公开(公告)号: US5331015A公开(公告)日: 1994-07-19
- 发明人: Thomas A. DesMarais , Keith J. Stone , Hugh A. Thompson , Gerald A. Young , Gary D. LaVon , John C. Dyer
- 申请人: Thomas A. DesMarais , Keith J. Stone , Hugh A. Thompson , Gerald A. Young , Gary D. LaVon , John C. Dyer
- 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: A61F13/15
- IPC分类号: A61F13/15 ; A61F13/56 ; A61L15/42 ; C08F2/32 ; C08J9/28 ; B32B3/26
摘要:
Disclosed are absorbent foam materials suitable for use as or in the absorbent cores of absorbent articles, such as diapers which absorb and retain aqueous body fluids. Such foam materials comprise hydrophilic, flexible open-celled structures which are preferably prepared by polymerizing high internal phase (HIPE) water-in-oil emulsions. Such foam materials have a pore volume of from about 12 to 100 mL/g, and a capillary suction specific surface area of from about 0.5 to 5.0 m.sup.2 /g. These materials also exhibit a resistance to compression deflection such that a confining pressure of 5.1 kPa produces after 15 minutes a strain of from about 5% to 95% compression when the material is saturated at 37.degree. C. to its free absorbent capacity with synthetic urine.
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