公开(公告)号：JPH03231932A

公开(公告)日：1991-10-15

申请号：JP2664390

申请日：1990-02-06

Applicant: KAO CORP

Inventor： YODA KOJI ,  TAKAHASHI HIROMICHI

IPC: B01D69/02 ,  C08J5/22 ,  C08J9/26 ,  H01G9/00 ,  H01G9/02 ,  H01M2/16

Abstract: PURPOSE:To obtain the title film useful for electrolytic capacitor, various kind of separation membranes, etc., and having excellent heat resistance, chemical resistance, mechanical strength, etc., by providing a number of through holes having a specific pore size in the film. CONSTITUTION:Mutually incompatible or slightly compatible two kind of resins (polyvinyl chloride, etc., as sea phase part and polybutadiene, preferably having 500000 molecular weight as island part) are blended, preferably in a weight ratio of island part/sea phase part of 1/5 and the blend is applied to an electrode using a solvent such as THF by dissolving casting method, etc., preferably in the thickness of 10-20mu. Then electric current is applied using titanium as electrodes for electrolytic polymerization in a solution obtained by dissolving an aromatic compound such as pyrrole capable of providing electrolytic polymer and supporting electrolyte such as lithium perchlorate in a solvent, e.g. acetonitrile for electrolytic polymerization, preferably at 50-200 deg.C to give a polymer film, which is then dipped in a solvent such as toluene and island part is removed to provide the aimed film having through holes having 0.1-100mum pore size.