METHOD FOR PRODUCING POROUS POLYMER FILM

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United States of America Patent

APP PUB NO 20160304679A1
SERIAL NO

14778482

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Abstract

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The method of the present disclosure includes: (I) irradiating a polymer film (1) with an ion beam composed of ions (2) accelerated in a cyclotron so as to form a polymer film that has collided with the ions in the beam; and (II) chemically etching the polymer film formed in the irradiation (I) so as to form openings (4b) and/or through holes (4a) corresponding to tracks (3) left by the colliding ions in the polymer film. In the irradiation (I), a beam current value of the ion beam is detected upstream and/or downstream of the polymer film in a path of the ion beam, and an irradiation conditioning factor in the irradiation of the polymer film with the ion beam is controlled based on the detected beam current value so that the polymer film can be irradiated with the ions at a predetermined irradiation density. The method of the present disclosure is suitable for industrial production of porous polymer films.

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NITTO DENKO CORPORATION1-1-2 SHIMOHOZUMI IBARAKI-SHI OSAKA 567-8680

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  • 2014 Application Filing Year
  • C08J Class
  • 1723 Applications Filed
  • 1369 Patents Issued To-Date
  • 79.46 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances201420152016201720182019202020212022202320240255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
AMINO, Ichiro Osaka, JP 5 136
ASANO, Masaharu Gunma, JP 63 673
FURUYAMA, Satoru Osaka, JP 28 302
ISHIBORI, Ikuo Gunma, JP 3 5
ISHIZAKA, Tomohisa Gunma, JP 3 5
KOSHIKAWA, Hiroshi Gunma, JP 84 2180
MAEKAWA, Yasunari Gunma, JP 27 109
MURAKI, Yuuzou Osaka, JP 7 13
NAGAI, Yozo Osaka, JP 32 213
YAMAKI, Tetsuya Gunma, JP 16 81
YOSHIDA, Ken-ichi Gunma, JP 7 49
YURI, Yosuke Gunma, JP 3 5
YUYAMA, Takahiro Gunma, JP 3 5

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  • 1 Citation Count
  • C08J Class
  • 26.66 % this patent is cited more than
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Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges1974556711412201 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 700255075100125150175200225250275300325350375400425450475500

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