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1.发明公开
公开(公告)号：EP0662847A1
公开(公告)日：1995-07-19
申请号：EP93922334.0
申请日：1993-09-23
发明人： REZAI, Ebrahim , LAHRMAN, Frank, Henry , IWASAKI, Toshiaki , BENSON, Douglas, Herrin , KOLODESH, Michael Sulya
CPC分类号： B32B37/24 , A61F13/53 , A61F2013/530569 , A61F2013/530605 , B29C43/006 , B29C43/22 , B29K2105/251
摘要： A method and apparatus (1) for making a cohesive sheet from particulate substantially water insoluble, absorbent hydrogel-forming polymer materials. The method comprises the steps of continuously layering dry absorbent gelling particles onto a conveyor. The particles are then sprayed with a liquid mixture, which is a solution of water and a cross-linking agent for the polymers in the particulate material. The amount sprayed is sufficient to cause effective surface cross-linking of the particulate material after the sheet is cured. The layering and spraying steps can then be repeated a number of times if desired. Pressure is then applied to the particulate material by passing it through a pair of compaction rolls. The apparatus (1) comprises a conveyor (3), one or more feeders (5) for layering the dry absorbent gelling particles onto the conveyor, one or more sprayers (4) for spraying the particles on the conveyor with the liquid mixture and a pair of compaction rolls (6).
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2.发明授权METHOD AND APPARATUS FOR MAKING COHESIVE SHEETS FROM PARTICULATE ABSORBENT POLYMERIC COMPOSITIONS 失效方法和设备吸水树脂化合物作出有关TRACKS
公开(公告)号：EP0662847B1
公开(公告)日：1996-08-14
申请号：EP93922334.3
申请日：1993-09-23
发明人： REZAI, Ebrahim , LAHRMAN, Frank, Henry , IWASAKI, Toshiaki , BENSON, Douglas, Herrin , KOLODESH, Michael Sulya
CPC分类号： B32B37/24 , A61F13/53 , A61F2013/530569 , A61F2013/530605 , B29C43/006 , B29C43/22 , B29K2105/251
摘要： A method and apparatus (1) for making a cohesive sheet from particulate substantially water insoluble, absorbent hydrogel-forming polymer materials. The method comprises the steps of continuously layering dry absorbent gelling particles onto a conveyor. The particles are then sprayed with a liquid mixture, which is a solution of water and a cross-linking agent for the polymers in the particulate material. The amount sprayed is sufficient to cause effective surface cross-linking of the particulate material after the sheet is cured. The layering and spraying steps can then be repeated a number of times if desired. Pressure is then applied to the particulate material by passing it through a pair of compaction rolls. The apparatus (1) comprises a conveyor (3), one or more feeders (5) for layering the dry absorbent gelling particles onto the conveyor, one or more sprayers (4) for spraying the particles on the conveyor with the liquid mixture and a pair of compaction rolls (6).
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