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公开(公告)号：AT411608T
公开(公告)日：2008-10-15
申请号：AT01904411
申请日：2001-02-14
Applicant: TORAY INDUSTRIES
Inventor： TSUNEKAWA TETSUYA , ASAKURA MASAYOSHI , YAMAGATA TETSUYA
Abstract: A polyester film for use in a capacitor having high heat resistance, which consists of a biaxially oriented film containing a polyester (A) as a main component and a polyimide (B) and has a glass transition temperature of 105 DEG C to 145 DEG C and an elongation at break in the machine direction of 70% to 150%, offers a high glass transition temperature and excellent insulation volume resistance and insulation breakdown voltage at high ambient temperatures. This film can produce a metallized film for use in a capacitor having high heat resistance and also a film capacitor having high heat resistance.
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公开(公告)号：MY120294A
公开(公告)日：2005-10-31
申请号：MYPI9603533
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°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°C THAN THE MAXIMUM OPERATING TEMPERATURE OF 85°C OF THE CONVENTIONAL BIAXIALLY ORIENTED POLYPROPYLENE FILMS.
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公开(公告)号：MY117927A
公开(公告)日：2004-08-30
申请号：MYPI9804674
申请日：1998-10-13
Applicant: TORAY INDUSTRIES
Inventor： ASAKURA MASAYOSHI , ETOU KENICHI , TSUNEKAWA TETSUYA
Abstract: DISCLOSED IS A BIAXIALLY ORIENTED POLYESTER FILM THAT IS 7.0 GPa OR MORE IN EITHER THE YOUNG''S MODULUS IN THE MACHINE DIRECTION (YmMD) OR IN THE TRANSVERSE DIRECTION (YmTD), AND IN RANGE OF 55o OR MORE AND 85o OR LESS IN THE CIRCUMFERENTIAL HALF-WIDTH OF THE DIFFRACTION LINE FROM THE CRYSTAL PLANE IN THE DIRECTION OF THE POLYESTER''S BACKBONE CHAIN THAT IS DETERMINED THROUGH CRYSTAL ORIENTATION ANALYSIS BY WIDE ANGLE X-RAY DIFFRACTOMETRY PERFORMED WHILE ROTATING THE POLYESTER FILM AROUND ITS NORMAL. THE FILM IS HIGH IN RIGIDITY IN ALL DIRECTIONS WITHIN THE FILM PLANE, HIGH IN TEAR RESISTANCE, HIGH DIMENSIONAL STABILITY, AND RESISTANT TO DEFORMATION UNDER LOAD, AND HAVE VERY GREAT INDUSTRIAL ADVANTAGES AS MATERIAL FOR HIGH-DENSITY MAGNETIC RECORDING MEDIA, WITH WIDE APPLICABILITY AS MATERIAL FOR ELECTROSTATIC CAPACITOR, HEAT TRANSFER RIBBON, AND BASE PAPER FOR THERMOSENSITIVE STENCIL PRINTING.
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公开(公告)号：DE69627272D1
公开(公告)日：2003-05-15
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：ES2313945T3
公开(公告)日：2009-03-16
申请号：ES01904411
申请日：2001-02-14
Applicant: TORAY INDUSTRIES
Inventor： TSUNEKAWA TETSUYA , ASAKURA MASAYOSHI , YAMAGATA TETSUYA
Abstract: Película de poliéster orientada biaxialmente para su utilización en un condensador, que tiene una elevada resistencia al calor, que comprende un poliéster (A) como componente principal y una poliimida (B), y que tiene una temperatura de transición vítrea en el intervalo de 105ºC a 145ºC y un alargamiento de rotura en la dirección de la máquina del 70% al 150%.
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Patent Agency Ranking
公开(公告)号：DE60136145D1
公开(公告)日：2008-11-27
申请号：DE60136145
申请日：2001-02-14
Applicant: TORAY INDUSTRIES
Inventor： TSUNEKAWA TETSUYA , ASAKURA MASAYOSHI , YAMAGATA TETSUYA
Abstract: A polyester film for use in a capacitor having high heat resistance, which consists of a biaxially oriented film containing a polyester (A) as a main component and a polyimide (B) and has a glass transition temperature of 105 DEG C to 145 DEG C and an elongation at break in the machine direction of 70% to 150%, offers a high glass transition temperature and excellent insulation volume resistance and insulation breakdown voltage at high ambient temperatures. This film can produce a metallized film for use in a capacitor having high heat resistance and also a film capacitor having high heat resistance.
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公开(公告)号：DE69837904T2
公开(公告)日：2008-02-28
申请号：DE69837904
申请日：1998-10-09
Applicant: TORAY INDUSTRIES
Inventor： ASAKURA MASAYOSHI , ETOU KENICHI , TSUNEKAWA TETSUYA
Abstract: Disclosed is a biaxially oriented polyester film that is 7.0 GPa or more in either the Young's modulus in the machine direction (YmMD) or in the transverse direction (YmTD), and in the range of 55 DEG or more and 85 DEG or less in the circumferential half-width of the diffraction line from the crystal plane in the direction of the polyester's backbone chain that is determined through crystal orientation analysis by wide angle X-ray diffractometry performed while rotating the polyester film around its normal. The film is high in rigidity in all directions within the film plane, high in tear resistance, high in dimensional stability, and resistant to deformation under load, and have very great industrial advantages as material for high-density magnetic recording media, with wide applicability as material for electrostatic capacitor, heat transfer ribbon, and base paper for thermosensitive stencil printing.
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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：ID21071A
公开(公告)日：1999-04-15
申请号：ID981362
申请日：1998-10-14
Applicant: TORAY INDUSTRIES
Inventor： ASAKURA MASAYOSHI , ETOU KENICHI , TSUNEKAWA TETSUYA
Abstract: Disclosed is a biaxially oriented polyester film that is 7.0 GPa or more in either the Young's modulus in the machine direction (YmMD) or in the transverse direction (YmTD), and in the range of 55 DEG or more and 85 DEG or less in the circumferential half-width of the diffraction line from the crystal plane in the direction of the polyester's backbone chain that is determined through crystal orientation analysis by wide angle X-ray diffractometry performed while rotating the polyester film around its normal. The film is high in rigidity in all directions within the film plane, high in tear resistance, high in dimensional stability, and resistant to deformation under load, and have very great industrial advantages as material for high-density magnetic recording media, with wide applicability as material for electrostatic capacitor, heat transfer ribbon, and base paper for thermosensitive stencil printing.
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公开(公告)号：CA2249766A1
公开(公告)日：1999-04-14
申请号：CA2249766
申请日：1998-10-07
Applicant: TORAY INDUSTRIES
Inventor： ASAKURA MASAYOSHI , ETOU KENICHI , TSUNEKAWA TETSUYA
Abstract: Disclosed is a biaxially oriented polyester film that is 7.0 GPa or more in either the Young's modulus in the machine direction (YmMD) or in the transverse direction (YmTD), and in the range of 55 .degree. or more and 85.degree. or less in the circumferential half-width of the diffraction line from the crystal plane in the direction of the polyester's backbone chain that is determined through crystal orientation analysis by wide angle X-ray diffractometry performed while rotating the polyester film around its normal. The film is high in rigidity in all directions within the film plane, high in tear resistance, high in dimensional stability, and resistant to deformation under load, and have very great industrial advantages as material for high-density magnetic recording media, with wide applicability as material for electrostatic capacitor, heat transfer ribbon, and base paper for thermosensitive stencil printing.
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