专利名称：Method of manufacturing membranes and
the resulting membranes
发明人：Willem Kools申请号：US12386115申请日：20090414
公开号：US20090252948A1公开日：20091008
专利附图：
摘要：This invention provides a process for making microporous membranes from apolymer solution and the membranes therefrom. A thermal assist, such as heating of thepolymer solution can be effected subsequent to shaping the solution, such as by forming
a film, tube or hollow fiber of the solution under conditions that do not cause phaseseparation. In a preferred embodiment, the formed solution is briefly heated to generatea temperature gradient through the body of the formed solution. The polymer insolution then is precipitated to form a microporous structure. The formation of a widevariety of symmetric and asymmetric structures can be obtained using this process.Higher temperatures and/or longer heating times effected during the heating stepresult in larger pore sizes and different pore gradients in the final membrane product.
申请人：Willem Kools
地址：Reading MA US
国籍：US
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