公开(公告)号：US5180804A

公开(公告)日：1993-01-19

申请号：US564083

申请日：1990-08-08

申请人： Manfred Niessner ,  Juergen Beck ,  Heinrich Hartmann ,  Andreas H. Kemna ,  Stefan Wickel

发明人： Manfred Niessner ,  Juergen Beck ,  Heinrich Hartmann ,  Andreas H. Kemna ,  Stefan Wickel

IPC分类号： A61F13/53 ,  A61F13/15 ,  A61F13/49 ,  B01J20/26 ,  C08F6/00 ,  C08J3/00

CPC分类号： C08F6/008

摘要： The water absorption capacity of crosslinked, water-swellable polymers is improved by a process in which a water-containing, finely divided polymer gel having a solids content of from 20 to 65% by weight is treated with steam at not less than 50.degree. C., the solids content of the water-containing polymer gel increasing by not more than 30% by weight, and the polymer gel is then dried in a conventional manner.

摘要翻译： 交联的水溶胀性聚合物的吸水能力通过一种方法得到改善，其中具有20至65重量％固体含量的含水精细分散的聚合物凝胶用不低于50℃的蒸汽处理 ，含水聚合物凝胶的固体含量增加不超过30重量％，然后以常规方式干燥聚合物凝胶。