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公开(公告)号：DE60029920D1
公开(公告)日：2006-09-21
申请号：DE60029920
申请日：2000-04-18
Applicant: TORAY INDUSTRIES
Inventor： SUGII HIKARU , KOTOURA MASAAKI , HOSOKAWA HIROFUMI , TSUNEKAWA TETSUYA
Abstract: The object of this invention is to provide a biaxially oriented polyester film suitable as a base film for high density magnetic recording media, small in track deviation and excellent in traveling durability and preservability, and to provide a production method thereof. The object of this invention can be achieved by a biaxially oriented polyester film, characterized in that the dimensional change rate (A) in the transverse direction of the film is in a range of -0.3 to 0% when the film is allowed to stand at 49 DEG C and 90% RH for 72 hours, while being loaded with 32 MPa in the machine direction.
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公开(公告)号：DE69622512T2
公开(公告)日：2002-11-07
申请号：DE69622512
申请日：1996-04-30
Applicant: TORAY INDUSTRIES
Inventor： TSUNASHIMA KENJI , TSUNEKAWA TETSUYA , KOTOURA MASAAKI
IPC: D01F6/62 , B29C47/86 , B29C55/02 , B29K67/00 , B29L7/00 , C08J5/18 , C08K5/00 , C08L67/00 , C08L67/02 , C08L67/04 , D01F6/92 , G11B5/73 , H01B3/42
Abstract: A novel polyester film is disclosed, comprising a liquid crystal polyester, a non-liquid crystal polyester and a fiberizer capable of substantially fiberizing said liquid crystal polyester. A process for the preparation of such a polyester film is also disclosed. Such a polyester film shows drastic improvements in various physical properties and other properties over the prior art polyester films. The polyester film according to the present invention exhibits a high modulus of elasticity, a high toughness, a small content of oligomer, thermal decomposition products and gelation products and excellent electrical properties and thus can be used as a base film for electrical insulating material, capacitor, magnetic recording medium, OA, FA, etc.
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公开(公告)号：ID19960A
公开(公告)日：1998-08-27
申请号：ID980260
申请日：1998-02-25
Applicant: TORAY INDUSTRIES
Inventor： TSUNEKAWA TETSUYA , KOTOURA MASAAKI , TSUNASHIMA KENJI
Abstract: A polyester film comprises a non-liquid crystal polyester (A) and a copolyester (B) containing mesogen groups in the main chain to form a phase separated structure in the non-liquid crystal polyester (A), and the dispersed domains of the copolyester (B) having respective dimensions such as to satisfy the following formulae (1) and (2): where I, J and K are shape indicators expressing the average shape of the plurality of domains existing in the film: I is the average length of the dispersed domains of the copolyester (B) in the machine direction of the film; J, that in the transverse direction; and K, that in the normal direction: and S is a function for selecting the shorter value of the lengths I and J; if I > J, SÄI, JÜ means J, and if I
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公开(公告)号：DE69826162T2
公开(公告)日：2005-10-27
申请号：DE69826162
申请日：1998-02-26
Applicant: TORAY INDUSTRIES
Inventor： TSUNEKAWA TETSUYA , KOTOURA MASAAKI , TSUNASHIMA KENJI
IPC: C08J5/18
Abstract: A polyester film comprises a non-liquid crystal polyester (A) and a copolyester (B) containing mesogen groups in the main chain to form a phase separated structure in the non-liquid crystal polyester (A), and the dispersed domains of the copolyester (B) having respective dimensions such as to satisfy the following formulae (1) and (2): where I, J and K are shape indicators expressing the average shape of the plurality of domains existing in the film: I is the average length of the dispersed domains of the copolyester (B) in the machine direction of the film; J, that in the transverse direction; and K, that in the normal direction: and S is a function for selecting the shorter value of the lengths I and J; if I > J, SÄI, JÜ means J, and if I
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公开(公告)号：DE69826162D1
公开(公告)日：2004-10-21
申请号：DE69826162
申请日：1998-02-26
Applicant: TORAY INDUSTRIES
Inventor： TSUNEKAWA TETSUYA , KOTOURA MASAAKI , TSUNASHIMA KENJI
IPC: C08J5/18
Abstract: A polyester film comprises a non-liquid crystal polyester (A) and a copolyester (B) containing mesogen groups in the main chain to form a phase separated structure in the non-liquid crystal polyester (A), and the dispersed domains of the copolyester (B) having respective dimensions such as to satisfy the following formulae (1) and (2): where I, J and K are shape indicators expressing the average shape of the plurality of domains existing in the film: I is the average length of the dispersed domains of the copolyester (B) in the machine direction of the film; J, that in the transverse direction; and K, that in the normal direction: and S is a function for selecting the shorter value of the lengths I and J; if I > J, SÄI, JÜ means J, and if I
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Patent Agency Ranking
公开(公告)号：DE69622512D1
公开(公告)日：2002-08-29
申请号：DE69622512
申请日：1996-04-30
Applicant: TORAY INDUSTRIES
Inventor： TSUNASHIMA KENJI , TSUNEKAWA TETSUYA , KOTOURA MASAAKI
IPC: D01F6/62 , B29C47/86 , B29C55/02 , B29K67/00 , B29L7/00 , C08J5/18 , C08K5/00 , C08L67/00 , C08L67/02 , C08L67/04 , D01F6/92 , G11B5/73 , H01B3/42
Abstract: A novel polyester film is disclosed, comprising a liquid crystal polyester, a non-liquid crystal polyester and a fiberizer capable of substantially fiberizing said liquid crystal polyester. A process for the preparation of such a polyester film is also disclosed. Such a polyester film shows drastic improvements in various physical properties and other properties over the prior art polyester films. The polyester film according to the present invention exhibits a high modulus of elasticity, a high toughness, a small content of oligomer, thermal decomposition products and gelation products and excellent electrical properties and thus can be used as a base film for electrical insulating material, capacitor, magnetic recording medium, OA, FA, etc.
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公开(公告)号：MY133739A
公开(公告)日：2007-11-30
申请号：MYPI9602530
申请日：1996-06-21
Applicant: TORAY INDUSTRIES
Inventor： TSUNEKAWA TETSUYA , TSUNASHIMA KENJI , KOTOURA MASAAKI
IPC: B32B5/02 , D01F6/62 , B29C47/86 , B29C55/02 , B29K67/00 , B29L7/00 , B32B27/18 , B32B27/36 , C08J5/18 , C08K5/00 , C08L67/00 , C08L67/02 , C08L67/04 , D01F6/92 , G11B5/73 , H01B3/42
Abstract: A NOVEL POLYESTER FILM IS DISCLOSED, COMPRISING A LIQUID CRYSTAL POLYESTER, A NON-LIQUID CRYSTAL POLYESTER AND A FIBERIZER CAPABLE OF SUBSTANTIALLY FIBERIZING SAID LIQUID CRYSTAL POLYESTER. A PROCESS FOR THE PREPARATION OF SUCH A POLYESTER FILM IS ALSO DISCLOSED.SUCH A POLYESTER FILM SHOWS DRASTIC IMPROVEMENTS IN VARIOUS PHYSICAL PROPERTIES AND OTHER PROPERTIES OVER THE PRIOR ART POLYESTER FILMS. THE POLYESTER FILM ACCORDING TO THE PRESENT INVENTION EXHIBITS A HIGH MODULUS OF ELASTICITY, A HIGH TOUGHNESS, A SMALL CONTENT OF OLIGOMER, THERMAL DECOMPOSITION PRODUCTS AND GELATION PRODUCTS AND EXCELLENT ELECTRICAL PROPERTIES AND THUS CAN BE USED AS A BASE FILM FOR ELECTRICAL INSULATING MATERIAL, CAPACITOR, MAGNETIC RECORDING MEDIUM, OA, FA, ETC.
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公开(公告)号：DE60029920T2
公开(公告)日：2007-02-22
申请号：DE60029920
申请日：2000-04-18
Applicant: TORAY INDUSTRIES
Inventor： SUGII HIKARU , KOTOURA MASAAKI , HOSOKAWA HIROFUMI , TSUNEKAWA TETSUYA
Abstract: The object of this invention is to provide a biaxially oriented polyester film suitable as a base film for high density magnetic recording media, small in track deviation and excellent in traveling durability and preservability, and to provide a production method thereof. The object of this invention can be achieved by a biaxially oriented polyester film, characterized in that the dimensional change rate (A) in the transverse direction of the film is in a range of -0.3 to 0% when the film is allowed to stand at 49 DEG C and 90% RH for 72 hours, while being loaded with 32 MPa in the machine direction.
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公开(公告)号：CA2230528A1
公开(公告)日：1998-08-26
申请号：CA2230528
申请日：1998-02-25
Applicant: TORAY INDUSTRIES
Inventor： TSUNEKAWA TETSUYA , KOTOURA MASAAKI , TSUNASHIMA KENJI
Abstract: A polyester film, comprising a non-liquid crystal polyester (A) and a copolyester (B) containing mesogen groups in the main chain to form a phase separated structure in the non-liquid crystal polyester (A), and the dispersed domains of the copolyester (B), having forms to satisfy the following formulae (1) and (2): 0.02 J, S¢I, J! means J, and if I
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10.发明公开BIAXIALLY ORIENTED POLYESTER FILM, PROCESS FOR PRODUCING THE SAME, AND MAGNETIC RECORDING MEDIUM 有权双轴取向聚酯膜，METHOD FOR THEIR和磁性记录介质
公开(公告)号：EP1122051A4
公开(公告)日：2005-04-27
申请号：EP00919131
申请日：2000-04-18
Applicant: TORAY INDUSTRIES
Inventor： SUGII HIKARU , KOTOURA MASAAKI , HOSOKAWA HIROFUMI , TSUNEKAWA TETSUYA
CPC classification number: G11B5/73 , Y10S428/91 , Y10T428/2495 , Y10T428/31721 , Y10T428/31786
Abstract: A biaxially oriented polyester film suitable for use as a base film for media for high-density magnetic recording, which is reduced in track shifting and excellent in running durability and storage stability. The biaxially oriented polyester film has a width-direction dimensional change (A) of -0.3 to 0 % through 72-hour standing at 49 DEG C and 90 % RH under a machine-direction load of 32 MPa.
Abstract translation: 本发明的目的是提供适合作为用于高密度磁记录介质，在磁道偏移小，具有优异的传输耐久性和维护的基膜的双轴取向聚酯膜，及其提供的制造方法。 本发明的目的可以通过双轴取向聚酯薄膜来实现，在DASS其特征在于所述膜的横向方向上死尺寸变化率（A）是在一个范围的-0.3〜0％当膜静置在 49℃和90％RH 72小时，而在机器方向上被加载有32兆帕。
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