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    BIAXIALLY STRETCHED MICROPOROUS FILM
    1.
    发明专利
    BIAXIALLY STRETCHED MICROPOROUS FILM 未知

    公开(公告)号：MY175746A

    公开(公告)日：2020-07-08

    申请号：MYPI2015701055

    申请日：2013-10-03

    Applicant: TORAY INDUSTRIES

    Inventor： MITSUOKA HIDETO ,  YAMADA KAZUHIRO ,  KIKUCHI SHINTARO ,  SAITO TOSHIYA

    Abstract: A biaxially stretched microporous film includes band-like polyethylene material having a film width of not less than 300 mm wherein distribution of physical properties in the film width direction and the thickness variation is less than 1.00 ?m and air permeability variation is not greater than 50 seconds/100 mL. The polyethylene microporous film has excellent planarity and uniformity of physical properties required when used in a large-area configuration as a separator film of a lithium ion battery for automobiles or consumer electronics. FIG. 1.

    MICROPOROUS MEMBRANE ROLL AND METHOD OF MANUFACTURING SAME
    6.
    发明专利
    MICROPOROUS MEMBRANE ROLL AND METHOD OF MANUFACTURING SAME 未知

    公开(公告)号：MY169624A

    公开(公告)日：2019-04-23

    申请号：MYPI2014701486

    申请日：2012-12-06

    Applicant: TORAY INDUSTRIES

    Inventor： IIZUKA TAKANORI ,  YAMADA KAZUHIRO ,  NAKAJIMA HIROKI ,  TANAKA HARUMI ,  YOSHINO OZORA

    Abstract: A microporous membrane roll (33) comprises cores (1, 11, 21, 31) formed in whole or in part from electrically conductive members (12, 13), and microporous membranes (34, S) which are wound around the cores (1, 11, 21, 31). A first surface (100) and a second surface (200) of the microporous membranes (34, S) are respectively equivalently charged with antipolar charges (102, 201). A method of manufacturing the microporous membrane roll (33) includes diselectrifying the microporous membranes (34, S) with a diselectrifier (35), and winding the microporous membranes (34, S) around the cores (1, 11, 21, 31) formed in whole or in part from the electrically conductive members (12, 13). When the microporous membranes (34, S) are unwound from the cores (1, 11, 21, 31), the microporous membranes (34, S) are prevented from being drawn toward either the microporous membrane roll (33) or peripheral devices by static electricity. The microporous membranes (34, S) are useful as a separator in either a fuel cell or a secondary battery. Figure 3

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