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公开(公告)号：DE69526638D1
公开(公告)日：2002-06-13
申请号：DE69526638
申请日：1995-08-28
Applicant: TORAY INDUSTRIES
Inventor： YOSHIDA MINORU , TSUNASHIMA KENJI , TOYODA KATSUYA , MINAMIZAWA HIDEHITO
Abstract: A biaxially oriented polyester film wherein the ratio (=IMD /IND) of the peak intensity (IMD) in the longitudinal direction to the peak intensity (IND) in the thickness direction determined at 1615 cm by laser Raman scattering method is not less than 6; and a process for production of a biaxially oriented polyester film which comprises the steps of controlling the ratio (A/B) of the maximum thickness (A) of the edge portion of a cast film to the thickness (B) of the central portion in the transverse direction thereof in the range of 2 to 6, biaxially stretching the cast film, and controlling the peak intensity ratio of the biaxially oriented film determined by the laser Raman scattering method in the above-described range. The biaxially oriented polyester film thus produced has a specific orientation in the longitudinal direction, and therefore has great strength in the longitudinal direction and small irregularity in properties such as thickness or birefringence.
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公开(公告)号：HK1010710A1
公开(公告)日：1999-06-25
申请号：HK98111429
申请日：1998-10-21
Applicant: TORAY INDUSTRIES
Inventor： SUZUKI MASARU , TSUNASHIMA KENJI , FUKUHARA MOTOTADA , OSAKI KATSUMASA
Abstract: This invention discloses heat-sensitive stencil paper and a production method thereof. Since no adhesive is used in this paper, the permeability to printing ink is not affected, and thus high-quality prints are obtained. The elimination of the use of adhesive prevents the decrease in resistance to ink, the adhesion to a thermal head, and emission of toxicious chlorine and improves the stability of film coating and productivity. This stencil paper is obtained by thermally bonding a polyester film and a porous support comprising a polyester fiber and co-stretching them, and the peel strength between the film and the porous support is at least 1 g/cm. Accordingly, prints obtained by stencil printing have very high quality.
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公开(公告)号：HK1004328A1
公开(公告)日：1998-11-20
申请号：HK98103343
申请日：1998-04-22
Applicant: TORAY INDUSTRIES
Inventor： MIMURA TAKASHI , AOKI SEIZO , MATSUURA KAZUO , TSUNASHIMA KENJI
Abstract: A laminated film consists of a laminated membrane having as main component a wax compsn on at least one of the surfaces of a polyester film. The laminated film is characterised in that it has at least 20 pcs/100 microm 2 of protuberances having a longitudinal length/transverse length ratio of at least 3 on its surface.
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公开(公告)号：HK1003479A1
公开(公告)日：1998-10-30
申请号：HK98102552
申请日：1998-03-25
Applicant: TORAY INDUSTRIES
Inventor： AOKI SEIZO , TSUNASHIMA KENJI , YOSHII TOSHIYA , NAKAHARA YASUJI , SUMIYA TAKASHI , MIMURA TAKASHI
Abstract: A film for thermal porous printing paper and a thermal porous printing paper composed of the film and a porous support are disclosed. The film comprises a biaxially oriented polyester film having a crystal melting energy, Delta Hu, of 3 to 11 cal/g and showing a difference between the crystal melting completion temperature and crystal melting initiation temperature, delta Tm, of 50 to 100 deg.C. Hence it has such a high heat sensitivity that characters and solid images are distinctly recorded with substantially no unevenness in thickness or density of the images. In addition, since it eliminates the necessity of reducing the thickness of the film.
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公开(公告)号：DE3785204T4
公开(公告)日：1994-10-20
申请号：DE3785204
申请日：1987-09-02
Applicant: TORAY INDUSTRIES
Inventor： AOKI SEIZO , TSUNASHIMA KENJI , YOSHII TOSHIYA , NAKAHARA YASUJI , SUMIYA TAKASHI , MIMURA TAKASHI
Abstract: A film for thermal porous printing paper and a thermal porous printing paper composed of the film and a porous support are disclosed. The film comprises a biaxially oriented polyester film having a crystal melting energy, Delta Hu, of 3 to 11 cal/g and showing a difference between the crystal melting completion temperature and crystal melting initiation temperature, delta Tm, of 50 to 100 deg.C. Hence it has such a high heat sensitivity that characters and solid images are distinctly recorded with substantially no unevenness in thickness or density of the images. In addition, since it eliminates the necessity of reducing the thickness of the film.
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Patent Agency Ranking
公开(公告)号：CA1290941C
公开(公告)日：1991-10-22
申请号：CA561692
申请日：1988-03-17
Applicant: TORAY INDUSTRIES
Inventor： AOKI SEIZO , TSUNASHIMA KENJI , YOSHII TOSHIYA , NAKAHARA YASUJI , SUMIYA TAKASHI , MIMURA TAKASHI
Abstract: A film for heat-sensitive mimeograph stencil and a heat-sensitive mimeograph stencil comprising a porous support and the film laminated thereon are disclosed. Since the film of the present invention has an energy of crystal fusion .DELTA. Hu of 3 - 11 cal/g and has a difference Tm in temperature of the crystal fusion-starting point and the crystal fusion-terminating point of 50.degree.C to 100.degree.C, the heat sensitivity is high, so that the characters and symbols or figures can be printed clearly, and the unevenness in the thickness and the light and shade of the printed characters may substantially be eliminated. Further, since it is not necessary to make the film thin, productivity and ease of handling may be promoted.
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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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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：DE69331734D1
公开(公告)日：2002-04-25
申请号：DE69331734
申请日：1993-12-03
Applicant: TORAY INDUSTRIES
Inventor： KIMURA MASAHIRO , YAMAUCHI HIDEYUKI , TSUNASHIMA KENJI , IMAI SHIRO
Abstract: A thermal lamination polyester film with a melting point of 150-250 C, a diethylene glycol content of 0.01-1 wt.% and an intrinsic viscosity [ eta ] of 0.7 or above, which has moldability and impact resistance heretofore unattainable and is excellent in adhesion and flavor retention, thus being suitable as a wrapping material and a container liner.
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