Method for producing separator and method for slitting separator original sheet

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United States of America Patent

PATENT NO 10307925
APP PUB NO 20180169881A1
SERIAL NO

15897281

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Abstract

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Provided is a method for producing a separator which method less causes a tear in the separator. The method is a method for producing a separator by slitting, in a direction in which a separator original sheet (12b) being porous is conveyed, the separator original sheet (12b) into a plurality of separators (12a), including the steps of: (a) conveying the separator original sheet (12b) in a state where the separator original sheet (12b) is in contact with a roller (77); and (b) slitting the separator original sheet (12b) at a portion where the separator original sheet (12b) is in contact with the roller (77).

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Patent Owner(s)

  • SUMITOMO CHEMICAL COMPANY, LIMITED

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kataoka, Tatsuya Niihama, JP 56 801
Nomura, Kiyomu Niihama, JP 11 2
Watanabe, Koichiro Niihama, JP 80 697

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