Birch, Stewart, Kolasch & Birch, LLP
Method of manufacturing porous fluorine-containing polymer membrane
A method of manufacturing a porous fluorine-containing polymer membrane is provided, which includes mixing a fluorine-containing polymer, a pore creating agent, and a solvent to form a mixture; forming a membrane of the mixture, and removing the pore creating agent and the solvent in the membrane to form the porous fluorine-containing polymer film. The pore creating agent has a chemical formula of wherein R1 is a C1-8 alkyl group, a C2-8 alkenyl group, a C2-8 alkynyl group, or a C6-12 aromatic group, and A⊖ is hydrogen sulfite ion, dihydrogen phosphate ion, nitrate ion, halogen ion, or a combination thereof. The solvent has a chemical formula of 
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
B B B B C C C B C B
B01D B01D B01D B01D C08J C08J C08J B01D C08J B01D
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Chia-Hua Min-Chao Meng-Shun Teh-Ming Hsin Ren-Yang
Ho Chang Huang Liang Shao Horng