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公开(公告)号：CA2772028C
公开(公告)日：2013-05-28
申请号：CA2772028
申请日：2005-04-21
Applicant: TORAY INDUSTRIES
Inventor： MASUDA JUN ICHI , OHKURA MASATOSHI , TANAKA SHIGERU , MORITA REIKO , FUKUSHIMA HAJIME
Abstract: The present invention provides a microporous polypropylene film where film formability is improved in accordance with a .beta.-crystal technique which allows microporous films to be continuously manufactured at low cost. In addition, a microporous polypropylene film of which the specific gravity is further reduced is provided. Furthermore, a microporous polypropylene film with a significantly high permeability is provided. In addition, manufacturing methods for these microporous polypropylene films are provided. As for the means for solving the above, a microporous polypropylene film comprising a polypropylene with the Trouton ratio of not less than 30, a microporous polypropylene film with the Trouton ratio of not less than 6, a microporous polypropylene film comprising a polypropylene having a long chain branch in the main chain, a microporous polypropylene film comprising a polypropylene where the relationship between the melt strength (MS) and the melt flow rate (MFR), measured at 230 °C , can be represented by the following formula (1) and/or the melt strength (MS) , measured at 230 °C , is less than 5 cN and the relationship between the MS and the melt flow rate (MFR) can be represented by the following formula (2), or a microporous polypropylene film where the following formula (3) is satisfied in the in-plane intensity distribution profile scanned in the direction of an azimuthal angle for (-113) plane in accordance with X-ray diffraction method, and which has a .beta.-crystal activity and a specific gravity of 0.1 to 0.6 and/or a porosity of 30 % to 95 %. log (MS) > -0.61 log (MFR) + 0.82 (1) log (MS) > -0.9 log (MFR) + 0.6 (2) 0.5
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公开(公告)号：CA2625083A1
公开(公告)日：2007-04-26
申请号：CA2625083
申请日：2006-09-29
Applicant: TORAY INDUSTRIES
Inventor： MASUDA JUN ICHI , OHKURA MASATOSHI , TANAKA SHIGERU , FUKUSHIMA HAJIME
IPC: H01M2/16 , C08J9/00 , H01G9/02 , H01M10/052 , H01M10/36
Abstract: There are provided a microporous film for an electric storage device separator, which can increase energy density and power density when used in an electric storage device, and which is excellent in handling properties in a processing step to the electric storage device, as well as an electric storage device separator and an electric storage device, using the microporous film. Specifically, provided is a microporous film for an electric storage device separator, characterized by including a porosity of 70% or more, a strength of 40 MPa or more in a longitudinal direction, an average pore size of from 40 to 400 nm, anuclear pores, and exhibiting biaxial orientation.
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公开(公告)号：AT496963T
公开(公告)日：2011-02-15
申请号：AT05734391
申请日：2005-04-21
Applicant: TORAY INDUSTRIES
Inventor： MASUDA JUN ICHI , OHKURA MASATOSHI , TANAKA SHIGERU , MORITA REIKO , FUKUSHIMA HAJIME
Abstract: The present invention provides a microporous polypropylene film where film formability is improved in accordance with a ²-crystal technique which allows microporous films to be continuously manufactured at low cost. In addition, a microporous polypropylene film of which the specific gravity is further reduced is provided. Furthermore, a microporous polypropylene film with a significantly high permeability is provided. In addition, manufacturing methods for these microporous polypropylene films are provided. As for the means for solving the above, a microporous polypropylene film comprising a polypropylene with the Trouton ratio of not less than 30, a microporous polypropylene film with the Trouton ratio of not less than 6, a microporous polypropylene film comprising a polypropylene having a long chain branch in the main chain, a microporous polypropylene film comprising a polypropylene where the relationship between the melt strength (MS) and the melt flow rate (MFR), measured at 230 °C, can be represented by the following formula (1) and/or the melt strength (MS), measured at 230 °C, is less than 5 cN and the relationship between the MS and the melt flow rate (MFR) can be represented by the following formula (2), or a microporous polypropylene film where the following formula (3) is satisfied in the in-plane intensity distribution profile scanned in the direction of an azimuthal angle for (-113) plane in accordance with X-ray diffraction method, and which has a ²-crystal activity and a specific gravity of 0.1 to 0.6 and/or a porosity of 30 % to 95 %. log MS > - 0.61 log MFR + 0.82 log MS > - 0.9 log MFR + 0.6 0.5 ‰¤ I MD / I TD ‰¤ 8 [Here, I (MD) is the integral intensity in the longitudinal direction and I (TD) is the integral intensity in the transverse direction.]
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公开(公告)号：CA2772028A1
公开(公告)日：2005-11-03
申请号：CA2772028
申请日：2005-04-21
Applicant: TORAY INDUSTRIES
Inventor： MASUDA JUN ICHI , OHKURA MASATOSHI , TANAKA SHIGERU , MORITA REIKO , FUKUSHIMA HAJIME
Abstract: The present invention provides a microporous polypropylene film where film formability is improved in accordance with a .beta.-crystal technique which allows microporous films to be continuously manufactured at low cost. In addition, a microporous polypropylene film of which the specific gravity is further reduced is provided. Furthermore, a microporous polypropylene film with a significantly high permeability is provided. In addition, manufacturing methods for these microporous polypropylene films are provided. As for the means for solving the above, a microporous polypropylene film comprising a polypropylene with the Trouton ratio of not less than 30, a microporous polypropylene film with the Trouton ratio of not less than 6, a microporous polypropylene film comprising a polypropylene having a long chain branch in the main chain, a microporous polypropylene film comprising a polypropylene where the relationship between the melt strength (MS) and the melt flow rate (MFR), measured at 230 °C , can be represented by the following formula (1) and/or the melt strength (MS) , measured at 230 °C , is less than 5 cN and the relationship between the MS and the melt flow rate (MFR) can be represented by the following formula (2), or a microporous polypropylene film where the following formula (3) is satisfied in the in-plane intensity distribution profile scanned in the direction of an azimuthal angle for (-113) plane in accordance with X-ray diffraction method, and which has a .beta.-crystal activity and a specific gravity of 0.1 to 0.6 and/or a porosity of 30 % to 95 %. log (MS) > -0.61 log (MFR) + 0.82 (1) log (MS) > -0.9 log (MFR) + 0.6 (2) 0.5
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公开(公告)号：CA2771872A1
公开(公告)日：2005-11-03
申请号：CA2771872
申请日：2005-04-21
Applicant: TORAY INDUSTRIES
Inventor： MASUDA JUN ICHI , OHKURA MASATOSHI , TANAKA SHIGERU , MORITA REIKO , FUKUSHIMA HAJIME
Abstract: The present invention provides a microporous polypropylene film where film formability is improved in accordance with a .beta.-crystal technique which allows microporous films to be continuously manufactured at low cost. In addition, a microporous polypropylene film of which the specific gravity is further reduced is provided. Furthermore, a microporous polypropylene film with a significantly high permeability is provided. In addition, manufacturing methods for these microporous polypropylene films are provided. As for the means for solving the above, a microporous polypropylene film comprising a polypropylene with the Trouton ratio of not less than 30, a microporous polypropylene film with the Trouton ratio of not less than 6, a microporous polypropylene film comprising a polypropylene having a long chain branch in the main chain, a microporous polypropylene film comprising a polypropylene where the relationship between the melt strength (MS) and the melt flow rate (MFR), measured at 230 °C , can be represented by the following formula (1) and/or the melt strength (MS) , measured at 230 °C , is less than 5 cN and the relationship between the MS and the melt flow rate (MFR) can be represented by the following formula (2), or a microporous polypropylene film where the following formula (3) is satisfied in the in-plane intensity distribution profile scanned in the direction of an azimuthal angle for (-113) plane in accordance with X-ray diffraction method, and which has a .beta.-crystal activity and a specific gravity of 0.1 to 0.6 and/or a porosity of 30 % to 95 %. log (MS) > -0.61 log (MFR) + 0.82 (1) log (MS) > -0.9 log (MFR) + 0.6 (2) 0.5
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Patent Agency Ranking
公开(公告)号：CA2625083C
公开(公告)日：2013-06-18
申请号：CA2625083
申请日：2006-09-29
Applicant: TORAY INDUSTRIES
Inventor： MASUDA JUN ICHI , OHKURA MASATOSHI , TANAKA SHIGERU , FUKUSHIMA HAJIME
Abstract: There are provided a microporous film for an electric storage device separator, which can increase energy density and power density when used in an electric storage device, and which is excellent in handling properties in a processing step to the electric storage device, as well as an electric storage device separator and an electric storage device, using the microporous electric storage device separator, characterized by including film. Specifically, provided is a microporous film for an a porosity of 70% or more, a strength of 40 MPa or more in a longitudinal direction, an average pore size of from 40 to 400 nm, anuclear pores, and exhibiting biaxial orientation.
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7.发明专利
公开(公告)号：CA2563787C
公开(公告)日：2013-05-21
申请号：CA2563787
申请日：2005-04-21
Applicant: TORAY INDUSTRIES
Inventor： MASUDA JUN ICHI , OHKURA MASATOSHI , TANAKA SHIGERU , MORITA REIKO , FUKUSHIMA HAJIME
Abstract: The present invention provides a microporous polypropylene film where film formability is improved in accordance with a .beta.-crystal technique which allows microporous films to be continuously manufactured at low cost. In addition, a microporous polypropylene film of which the specific gravity is further reduced is provided. Furthermore, a microporous polypropylene film with a significantly high permeability is provided. In addition, manufacturing methods for these microporous polypropylene films are provided. As for the means for solving the above, a microporous polypropylene film comprising a polypropylene with the Trouton ratio of not less than 30, a microporous polypropylene film with the Trouton ratio of not less than 6, a microporous polypropylene film comprising a polypropylene having a long chain branch in the main chain, a microporous polypropylene film comprising a polypropylene where the relationship between the melt strength (MS) and the melt flow rate (MFR), measured at 230 °C , can be represented by the following formula (1) and/or the melt strength (MS), measured at 230 °C , is less than 5 cN and the relationship between the MS and the melt flow rate (MFR) can be represented by the following formula (2), or a microporous polypropylene film where the following formula (3) is satisfied in the in-plane intensity distribution profile scanned in the direction of an azimuthal angle for (-113) plane in accordance with X-ray diffraction method, and which has a beta.-crystal activity and a specific gravity of 0.1 to 0.6 and/or a porosity of 30 % to 95 %. log (MS) > -0.61 log (MFR) + 0.82 (1) log (MS) > -0.9 log (MFR) + 0.6 (2) 0.5
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公开(公告)号：CA2563787A1
公开(公告)日：2005-11-03
申请号：CA2563787
申请日：2005-04-21
Applicant: TORAY INDUSTRIES
Inventor： MASUDA JUN ICHI , TANAKA SHIGERU , OHKURA MASATOSHI , FUKUSHIMA HAJIME , MORITA REIKO
Abstract: The present invention provides a microporous polypropylene film where film formability is improved in accordance with a ²-crystal technique which allows microporous films to be continuously manufactured at low cost. In addition, a microporous polypropylene film of which the specific gravity is further reduced is provided. Furthermore, a microporous polypropylene film with a significantly high permeability is provided. In addition, manufacturing methods for these microporous polypropylene films are provided. As for the means for solving the above, a microporous polypropylene film comprising a polypropylene with the Trouton ratio of not less than 30, a microporous polypropylene film with the Trouton ratio of not less than 6, a microporous polypropylene film comprising a polypropylene having a long chain branch in the main chain, a microporous polypropylene film comprising a polypropylene where the relationship between the melt strength (MS) and the melt flow rate (MFR), measured at 230 °C, can be represented by the following formula (1) and/or the melt strength (MS), measured at 230 °C, is less than 5 cN and the relationship between the MS and the melt flow rate (MFR) can be represented by the following formula (2), or a microporous polypropylene film where the following formula (3) is satisfied in the in-plane intensity distribution profile scanned in the direction of an azimuthal angle for (-113) plane in accordance with X-ray diffraction method, and which has a ²-crystal activity and a specific gravity of 0.1 to 0.6 and/or a porosity of 30 % to 95 %. log MS > - 0.61 log MFR + 0.82 log MS > - 0.9 log MFR + 0.6 0.5 ‰¤ I MD / I TD ‰¤ 8 [Here, I (MD) is the integral intensity in the longitudinal direction and I (TD) is the integral intensity in the transverse direction.]
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公开(公告)号：AU2005235863A1
公开(公告)日：2005-11-03
申请号：AU2005235863
申请日：2005-04-21
Applicant: TORAY INDUSTRIES
Inventor： OHKURA MASATOSHI , MASUDA JUN ICHI , FUKUSHIMA HAJIME , MORITA REIKO , TANAKA SHIGERU
IPC: C08J9/00
Abstract: The present invention provides a microporous polypropylene film where film formability is improved in accordance with a ²-crystal technique which allows microporous films to be continuously manufactured at low cost. In addition, a microporous polypropylene film of which the specific gravity is further reduced is provided. Furthermore, a microporous polypropylene film with a significantly high permeability is provided. In addition, manufacturing methods for these microporous polypropylene films are provided. As for the means for solving the above, a microporous polypropylene film comprising a polypropylene with the Trouton ratio of not less than 30, a microporous polypropylene film with the Trouton ratio of not less than 6, a microporous polypropylene film comprising a polypropylene having a long chain branch in the main chain, a microporous polypropylene film comprising a polypropylene where the relationship between the melt strength (MS) and the melt flow rate (MFR), measured at 230 °C, can be represented by the following formula (1) and/or the melt strength (MS), measured at 230 °C, is less than 5 cN and the relationship between the MS and the melt flow rate (MFR) can be represented by the following formula (2), or a microporous polypropylene film where the following formula (3) is satisfied in the in-plane intensity distribution profile scanned in the direction of an azimuthal angle for (-113) plane in accordance with X-ray diffraction method, and which has a ²-crystal activity and a specific gravity of 0.1 to 0.6 and/or a porosity of 30 % to 95 %. log MS > - 0.61 log MFR + 0.82 log MS > - 0.9 log MFR + 0.6 0.5 ‰¤ I MD / I TD ‰¤ 8 [Here, I (MD) is the integral intensity in the longitudinal direction and I (TD) is the integral intensity in the transverse direction.]
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公开(公告)号：CA2771872C
公开(公告)日：2013-10-01
申请号：CA2771872
申请日：2005-04-21
Applicant: TORAY INDUSTRIES
Inventor： MASUDA JUN ICHI , OHKURA MASATOSHI , TANAKA SHIGERU , MORITA REIKO , FUKUSHIMA HAJIME
Abstract: The present invention provides a microporous polypropylene film where film formability is improved in accordance with a .beta.-crystal technique which allows microporous films to be continuously manufactured at low cost. In addition, a microporous polypropylene film of which the specific gravity is further reduced is provided. Furthermore, a microporous polypropylene film with a significantly high permeability is provided. In addition, manufacturing methods for these microporous polypropylene films are provided. As for the means for solving the above, a microporous polypropylene film comprising a polypropylene with the Trouton ratio of not less than 30, a microporous polypropylene film with the Trouton ratio of not less than 6, a microporous polypropylene film comprising a polypropylene having a long chain branch in the main chain, a microporous polypropylene film comprising a polypropylene where the relationship between the melt strength (MS) and the melt flow rate (MFR), measured at 230 °C , can be represented by the following formula (1) and/or the melt strength (MS) , measured at 230 °C , is less than 5 cN and the relationship between the MS and the melt flow rate (MFR) can be represented by the following formula (2), or a microporous polypropylene film where the following formula (3) is satisfied in the in-plane intensity distribution profile scanned in the direction of an azimuthal angle for (-113) plane in accordance with X-ray diffraction method, and which has a .beta.-crystal activity and a specific gravity of 0.1 to 0.6 and/or a porosity of 30 % to 95 %. log (MS) > -0.61 log (MFR) + 0.82 (1) log (MS) > -0.9 log (MFR) + 0.6 (2) 0.5
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