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公开(公告)号：EP0991435B1
公开(公告)日：2007-03-14
申请号：EP98929018.4
申请日：1998-06-11
发明人： BLAND, David, G. , ROSE, Gene, D. , STOBBY, William, G. , MORK, Steven, W. , STAPLES, Thomas, G. , McCANN, Gordon, D.
CPC分类号： C08J9/365 , A61L15/425 , B29C44/352 , B29C44/505 , B29C44/5627 , B29C47/825 , B29C47/90 , B29C47/906 , B65D81/264 , C08J9/36 , C08J2201/03 , C08J2205/05 , C08J2325/06 , Y10T428/13 , Y10T428/1307 , Y10T428/1324 , Y10T428/1352 , Y10T428/1376
摘要： Disclosed is an absorbent, extruded, open cell thermoplastic foam. The foam has an open cell content of about 50 percent or more and an average cell size of up to about 1.5 millimeters. The foam is capable of absorbing a liquid at about 50 percent or more of its theoretical volume capacity when absorbing a liquid. The foam preferably has an average equivalent pore size of about 5 micrometers or more. The foam preferably has a structure substantially of cell walls and cell struts. Further disclosed is a method for absorbing a liquid employing the foam by elongation of the extrudate of the extrusion die. Further disclosed is a method of enhancing absorbency of an open cell foam by applying a surfactant to an exposed surface of the foam such that it remains at the surface and does not infiltrate a substantial distance into the foam. Further disclosed is a meat tray and a diaper containing the foam.
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2.发明授权DURABLE, ABSORBENT LATEX FOAM COMPOSITION HAVING HIGH VERTICAL WICKING 有权具有改进的垂直WICK PROPERTIES永久吸收性乳胶发泡
公开(公告)号：EP1276516B1
公开(公告)日：2006-02-08
申请号：EP01923234.7
申请日：2001-04-09
CPC分类号： A61L15/425 , A61L15/24 , C08L25/04
摘要： A durable, conformable, absorbent, hydrophilic, polymeric latex foam composition having a free absorbent capacity of at least 5 grams of a 0.9 weight percent aqueous saline solution per gram of foam and capable of vertically wicking said aqueous saline solution to a height of greater than 5 cm. In a preferred embodiment, after compression, the latex foam composition remains thin until wet, whereupon it expands and exhibits a high free absorbent capacity and high vertical wicking height.
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3.发明公开CONTINUOUS PROCESS FOR POLYMERIZING, CURING AND DRYING HIGH INTERNAL PHASE EMULSIONS 有权连续法聚合，干燥和固化乳液与BIG HEARTS相
公开(公告)号：EP1311598A2
公开(公告)日：2003-05-21
申请号：EP01932690.9
申请日：2001-04-27
CPC分类号： B29C43/22 , B29C44/30 , B29C67/202 , C08J9/28 , C08J2201/028 , C08J2201/0504
摘要： The invention comprises a fully continuous process for shaping a high internal phase emulsion (HIPE) with a polymerizable continuous phase into dry foam, comprising 1) providing a high internal phase emulsion (HIPE) comprising (a) at least 70 percent by volume of an eternal phase comprising one or more polymerizable monomer; (b) a surfactant in an amount effective to produce a high internal phase emulsion; and (c) an internal phase; 2) depositing the emulsion onto a lower moving support substrate; 3) leveling the emulsion to a desired thickness above the support substrate; 4) polymerizing the monomers by running the emulsion and the lower moving support substrate through a heating zone for a time sufficient to polymerize at least 75 % of the monomer in the HIPE by the end of the heating zone; and 5) drying the polymerized HIPE in a drying zone for a time sufficient to produce a foam having greater than 50 % of the internal phase removed.
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4.发明授权CONTINUOUS PROCESS FOR POLYMERIZING, CURING AND DRYING HIGH INTERNAL PHASE EMULSIONS 有权连续法聚合，干燥和固化乳液与BIG HEARTS相
公开(公告)号：EP1311598B1
公开(公告)日：2009-01-14
申请号：EP01932690.9
申请日：2001-04-27
CPC分类号： B29C43/22 , B29C44/30 , B29C67/202 , C08J9/28 , C08J2201/028 , C08J2201/0504
摘要： The invention comprises a fully continuous process for shaping a high internal phase emulsion (HIPE) with a polymerizable continuous phase into dry foam, comprising 1) providing a high internal phase emulsion (HIPE) comprising (a) at least 70 percent by volume of an eternal phase comprising one or more polymerizable monomer; (b) a surfactant in an amount effective to produce a high internal phase emulsion; and (c) an internal phase; 2) depositing the emulsion onto a lower moving support substrate; 3) leveling the emulsion to a desired thickness above the support substrate; 4) polymerizing the monomers by running the emulsion and the lower moving support substrate through a heating zone for a time sufficient to polymerize at least 75 % of the monomer in the HIPE by the end of the heating zone; and 5) drying the polymerized HIPE in a drying zone for a time sufficient to produce a foam having greater than 50 % of the internal phase removed.
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公开(公告)号：EP1156837B1
公开(公告)日：2006-04-19
申请号：EP00914667.1
申请日：2000-02-23
发明人： GARTNER, Herbert, A. , MORK, Steven, W. , SHICK, Reed, A. , KLIER, John , HERR, Heike , TUCKER, Christopher, J.
摘要： The present invention refers to a high internal phase polyelectrolyte emulsions which are useful for the manufacture of superabsorbent polymers having two phases: i) a continuous oil phase and the ii) a dispersed aqueous phase containing the aqueous monomer solution prior to polymerization and the polyelectrolyte in water-soluble, or water-swellable or very slightly crosslinked form after polymerization, wherein the polymerization occurs in the dispersed aqueous phase and wherein the dispersed aqueous phase contains a high concentration of polyelectrolyte. The present invention also refers to a process for preparing such emulsions and for inverting these emulsions so as to form films or other patterns of the superabsorbent polymer. Absorbent structures containing SAP films or other patterns prepared by the present invention are also contemplated.
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6.发明公开DURABLE, ABSORBENT LATEX FOAM COMPOSITION HAVING HIGH VERTICAL WICKING 有权具有改进的垂直WICK PROPERTIES永久吸收性乳胶发泡
公开(公告)号：EP1276516A2
公开(公告)日：2003-01-22
申请号：EP01923234.7
申请日：2001-04-09
CPC分类号： A61L15/425 , A61L15/24 , C08L25/04
摘要： A durable, conformable, absorbent, hydrophilic, polymeric latex foam composition having a free absorbent capacity of at least 5 grams of a 0.9 weight percent aqueous saline solution per gram of foam and capable of vertically wicking said aqueous saline solution to a height of greater than 5 cm. In a preferred embodiment, after compression, the latex foam composition remains thin until wet, whereupon it expands and exhibits a high free absorbent capacity and high vertical wicking height.
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