MICROPORE FORMING AGENT FOR POROUS RESIN FILM AND COMPOSITION FOR POROUS RESIN FILM CONTAINING THE AGENT

WIPO Patent Application WO/2007/088707

A1

A micropore forming agent for porous resin film composed of inorganic particles, satisfying the relationships (a) 0.1 ≤ D50 ≤ 1.5 μm (D50: average particle diameter of cumulative weight 50% calculated from the large particle side in microtrack FRA), (b) Da ≤ 20 μm (Da: maximum particle diameter in microtrack FRA), (c) 3 ≤ Sw ≤ 60 m2/g (Sw: BET specific surface area in nitrogen adsorption method) and (d) Ir ≥ 1.0×105 Ω cm (Ir: volume resistivity of hydrochloric acid insoluble content). Using this micropore forming agent for porous resin film, there can be provided a resin composition that would provide a porous resin film suitable for use in electrical applications, such as capacitor and battery separator.

NAGAMATSU, Makoto (1455, Nishioka, Uozumi-cho, Akashi-sh, Hyogo 84, 6740084, JP)
永松 誠 (〒84 兵庫県明石市魚住町西岡１４５５番地丸尾カルシウム株式会社内 Hyogo, 6740084, JP)
SHIMIZU, Seiya (1455, Nishioka, Uozumi-cho, Akashi-sh, Hyogo 84, 6740084, JP)
清水清也 (〒84 兵庫県明石市魚住町西岡１４５５番地丸尾カルシウム株式会社内 Hyogo, 6740084, JP)

JP2007/000043

August 09, 2007

January 31, 2007

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MARUO CALCIUM CO., LTD. (1455, Nishioka Uozumi-cho, Akashi-sh, Hyogo 84, 6740084, JP)
丸尾カルシウム株式会社 (〒84 兵庫県明石市魚住町西岡１４５５番地 Hyogo, 6740084, JP)
SUMITOMO CHEMICAL CO., LTD. (27-1, Shinkawa 2-chome Chuo-k, Tokyo 60, 1048260, JP)
住友化学株式会社 (〒60 東京都中央区新川二丁目２７番１号 Tokyo, 1048260, JP)
NAGAMATSU, Makoto (1455, Nishioka, Uozumi-cho, Akashi-sh, Hyogo 84, 6740084, JP)
永松 誠 (〒84 兵庫県明石市魚住町西岡１４５５番地丸尾カルシウム株式会社内 Hyogo, 6740084, JP)

C08J9/00; C01B25/32; C01F5/14; C01F11/18; H01M2/16; C08J9/00; C01B25/00; C01F5/00; C01F11/00; H01M2/16

ITAMI, Kenji (ALTE BLDG. DOSHOMACHI 8F, 2-11 Doshomachi 1-chome, Chuo-k, Osaka-shi Osaka 45, 5410045, JP)

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