Method and apparatus for producing microporous metal foil
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United States of America Patent
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May 15, 2018
Issued Date -
N/A
app pub date -
Jul 16, 2015
filing date -
Oct 21, 2014
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method and an apparatus for producing a microporous metal foil comprising (a) passing a metal foil through a gap between a pattern roll having large numbers of high-hardness, fine particles on the surface and a hard roll while pressing, to provide the metal foil with large numbers of fine penetrating pores, with a thin hard plastic film interposed between the metal foil and the pattern roll, and a thick soft plastic film interposed between the metal foil and the hard roll; and (b) adjusting tension applied to each of the metal foil, the hard plastic film and the soft plastic film to such an equal level that the metal foil is not broken during forming the fine penetrating pores.
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