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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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2.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：CA2551526C
公开(公告)日：2012-11-13
申请号：CA2551526
申请日：2004-12-21
Applicant: TORAY INDUSTRIES
Inventor： TANAKA SHIGERU , OHKURA MASASHI , MASUDA JUN ICHI , TONEGAWA KOUICHI , MORITA REIKO
Abstract: With white films or micro-porous films for thermal transfer recording in the prior art involving .beta.-crystal transitions, production of the film and receiving sheet were not compatible, at a high level, with the sensitivity of the receiving sheet. The present invention relates to a biaxially oriented white film for thermal transfer recording which has low specific gravity required as a thermal transfer film, high whiteness and cushion factor, and is excellent in crease resistance, and has a high--level compatibility between high sensitivity and productivity when used as a substrate of a receiving sheet, and a receiving sheet for thermal transfer recording using the same.
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公开(公告)号：DE69837745D1
公开(公告)日：2007-06-21
申请号：DE69837745
申请日：1998-12-24
Applicant: TORAY INDUSTRIES
Inventor： NAGAI ITSUO , TANAKA SHIGERU
Abstract: A biaxially oriented polypropylene film to be metallized comprises a surface layer made of a polypropylene resin having an endothermic main peak by crystal fusion in a range of 155 to 163 DEG C and a heat of crystal fusion of 20 to 90 J/g, being laminated layer at least on one side of a base layer made of isotactic polypropylene; and the wetting tension of the surface layer being 33 to 55 mN/m. A metallized biaxially oriented polypropylene film, comprises the biaxially oriented polypropylene film onto which a thin metal film is laminated. A laminate can be obtained using the metallized biaxially oriented polypropylene film.
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公开(公告)号：DE60127059D1
公开(公告)日：2007-04-19
申请号：DE60127059
申请日：2001-04-10
Applicant: TORAY INDUSTRIES
Inventor： HOCHI MOTONORI , TANAKA SHIGERU , HIROTA KUSATO
Abstract: A laminated film is provided which is constituted essentially of a resin substrate and a coated film disposed thereon. The coated film comprises a montmorillonite containing a cation exchanger other than sodium ions and a water-soluble polymer. The laminated film offers a high oxygen-permeability barrier at high humidity and firm bonding between the coated film and the resin substrate at high humidity. A packaging material derived from the laminated film is also provided.
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Patent Agency Ranking
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：DE69627272T2
公开(公告)日：2004-01-29
申请号：DE69627272
申请日：1996-08-20
Applicant: TORAY INDUSTRIES
Inventor： HIRANO TAKUMI , NAGAI ITSUO , TANAKA SHIGERU , ASAKURA MASAYOSHI
IPC: B32B27/32 , C08J5/18 , C08L23/12 , C08L101/00 , H01G4/18
Abstract: The present invention relates to a biaxially oriented polypropylene film and a capacitor made thereof. The biaxially oriented polypropylene film of the invention is a biaxially oriented polypropylene film that is 98-99.5% in isotacticity, above 99% in isotactic pentad fraction, and 1-4% in the sum of the machine- and transverse-direction heat shrinkage at 120 DEG C, or a biaxially oriented polypropylene film that is less than 10 ppm.% in the product of the film's ash content and internal haze and is above 99% in isotactic pentad fraction. With this constitution, the biaxially oriented polypropylene film of the present invention has good dielectric properties at high temperatures. Furthermore, the capacitor of the invention can be used safely for a long life at operating temperatures higher by up to 20 DEG C than the maximum operating temperature of 85 DEG C of the conventional biaxially oriented polypropylene films.
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公开(公告)号：DE69714022T2
公开(公告)日：2002-11-28
申请号：DE69714022
申请日：1997-08-08
Applicant: TORAY INDUSTRIES
Inventor： UEDA TAKASHI , NAGAI ITSUO , TANAKA SHIGERU , HIRANO TAKUMI
Abstract: To provide a biaxially oriented polypropylene film excellent in heat resistance and long-term dielectric properties at high temperatures, less in insulation defects, and excellent in the impregnation of an insulating oil into the clearance between film layers and swelling resistance when immersed in the insulating oil, and also to provide a capacitor excellent in heat resistance, dielectric properties, corona resistance, long-term thermal durability and electric current resistance, using the polypropylene film as dielectric. The film of the present invention is a biaxially oriented polypropylene film characterized by being 98 to 99.5% in isotacticity, 99% or more in isotactic pentad fraction, 30 ppm or less in ash content and 0.01 to 0.4 mu m in the center line average surface roughnesses on both sides.
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公开(公告)号：CA2184133A1
公开(公告)日：1997-05-30
申请号：CA2184133
申请日：1996-08-26
Applicant: TORAY INDUSTRIES
Inventor： HIRANO TAKUMI , NAGAI ITSUO , TANAKA SHIGERU , ASAKURA MASAYOSHI
Abstract: The present invention relates to a biaxially oriented polypropylene film and a capacitor made thereof. The biaxially oriented polypropylene film of the invention is a biaxially oriented polypropylene film that is 98-99.5% in isotacticity, above 99% in isotactic pentad fraction, and 1-4% in the sum of the machine- and transverse-direction heat shrinkage at 120 .degree.C, or a biaxially oriented polypropylene film that is less than 10 ppm.% in the product of the film's ash content and internal haze and is above 99% in isotactic pentad fraction. With this constitution, the biaxially oriented polypropylene film of the present invention has good dielectric properties at high temperatures. Furthermore, the capacitor of the invention can be used safely for a long life at operating temperatures higher by up to 20.degree.C than the maximum operating temperature of 85.degree.C of the conventional biaxially oriented polypropylene films.
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