公开(公告)号：US5149720A

公开(公告)日：1992-09-22

申请号：US830159

申请日：1992-02-03

申请人： Thomas A. DesMarais ,  Stephen T. Dick ,  Thomas M. Shiveley

发明人： Thomas A. DesMarais ,  Stephen T. Dick ,  Thomas M. Shiveley

IPC分类号： A61F13/53 ,  A61F13/15 ,  A61F13/49 ,  A61L15/60 ,  B01F3/08 ,  B01F7/00 ,  B01F13/10 ,  C08F20060101 ,  C08F2/32 ,  C08F12/00 ,  C08F20/18 ,  C08F212/08 ,  C08F212/34 ,  C08F220/10 ,  C08F220/18 ,  C08F236/04 ,  C08J9/00 ,  C08J9/28

CPC分类号： B01F13/103 ,  B01F3/0811 ,  B01F3/0853 ,  C08J9/283 ,  A61F13/537 ,  A61F2013/530007 ,  A61F2013/530036 ,  A61F2013/530459 ,  A61F2013/530467 ,  A61F2013/530474 ,  A61F2013/530481 ,  A61F2013/530708 ,  A61F2013/530802 ,  A61F2013/53081 ,  A61F2013/530817 ,  A61F2013/530839 ,  A61F2013/530854 ,  B01F2003/0826 ,  B01F7/00

摘要： Disclosed is a process for the continuous preparation of high internal phase emulsions which are suitable for subsequent polymerization into polymeric foam materials that, upon dewatering, act as absorbents for aqueous body fluids. The process involves continuous introduction of a certain type of monomer-containing oil phase and a certain type of electrolyte-containing water phase into a dynamic mixing zone at relatively low water to oil phase ratios. Flow rates are then steadily adjusted to increase the water to oil ratio of the streams fed to the dynamic mixing zone while subjecting the dynamic mixing zone contents to shear agitation which is sufficient to thereby form a high internal phase emulsion that, upon subsequent polymerization, provides a foam having an average cell size of from about 5 to 100 microns. The formation of such a stable high internal phase emulsion is completed by feeding the contents of the dynamic mixing zone to and through a static mixing zone.

摘要翻译： 公开了一种用于连续制备高内相乳液的方法，其适用于随后聚合成聚合物泡沫材料，其在脱水时用作水性体液的吸收剂。 该方法包括将某种类型的含单体的油相和某种类型的含电解质的水相以相对低的水相油比连续引入动态混合区。 然后稳定地调节流速以增加进料到动态混合区的料流的水与油的比例，同时对动态混合区内容物进行剪切搅拌，其足以形成高内相乳液，其随后的聚合反应提供 平均泡孔尺寸为约5至100微米的泡沫。 这种稳定的高内相乳液的形成是通过将动态混合区的内容物送入并通过静态混合区而完成的。