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公开(公告)号:JP2002317108A
公开(公告)日:2002-10-31
申请号:JP2001120781
申请日:2001-04-19
Applicant: TORAY INDUSTRIES
Inventor: KOJIMA HIROJI , MORIMOTO TSUTOMU , YOSHIDA MINORU
Abstract: PROBLEM TO BE SOLVED: To provide a polyester composition and a film therefrom are excellent in thermal dimensional stability and cost performance. SOLUTION: This polyester composition comprises a polyester having 80-99 wt.% of polyethylene terephthalate, and a metal salt of an aromatic monocarboxylic acid having a molecular weight of =245 deg.C, the amount of the carboxylic and group is
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公开(公告)号:JP2002161149A
公开(公告)日:2002-06-04
申请号:JP2000360981
申请日:2000-11-28
Applicant: TORAY INDUSTRIES
Inventor: TAKAHASHI KOZO , MATSUI RYOSUKE , YOSHIDA MINORU
Abstract: PROBLEM TO BE SOLVED: To provide a biaxially oriented polyester film which is excellent in heat resistance, impact resistance and especially has longitudinal tearability. SOLUTION: The biaxially oriented polyester film with longitudinal tearability comprises polyester (A) of 60-95 wt.% having as a main component ethylene terephthalate and/or ethylenenaphthalate and polyester (B) of 5-40 wt.% having glass transition temperature of
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公开(公告)号:JP2002160721A
公开(公告)日:2002-06-04
申请号:JP2000356395
申请日:2000-11-22
Applicant: TORAY INDUSTRIES
Inventor: MATSUI RYOSUKE , TAKAHASHI KOZO , YOSHIDA MINORU
Abstract: PROBLEM TO BE SOLVED: To provide a polyester film for molding a container, which can be easily molded without causing cracks when molded on the container singly or after lamination on a basic material, eliminates the occurrence of the cracks even against a shock caused due to a fall and the like after molding, makes it difficult to cause delamination on a boundary face when stuck on the base material, and has excellent shock resistance. SOLUTION: The polyester film for molding the container has the maximum value of an amorphous orientation parameter
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公开(公告)号:JP2002120268A
公开(公告)日:2002-04-23
申请号:JP2000315156
申请日:2000-10-16
Applicant: TORAY INDUSTRIES
Inventor: KIMURA MASAHIRO , YOSHIDA MINORU , SASAMOTO FUTOSHI
Abstract: PROBLEM TO BE SOLVED: To provide a polyester film being pliable, excellent in surface properties (scarcely having a diehead streak), suitable for molding and processing of a high degree, excellent also in moldability, pliability and beauty on the occasion of being laminated with a metallic or non-metallic material, and usable suitably for many materials for molding. SOLUTION: The polyester film is constituted of a polyester composition containing an ethylene glycol-series polyester A, a butanediol-series polyester B and an organic component C (except particulate matter) other than these polyesters in specified ranges, or it is a laminated film comprising a layer of that film as one layer at least. The number of streak-like matters extending in the longitudinal direction of the film on the surface thereof, the width of the film, a surface orientation coefficient of the film and the thickness thereof are within specified ranges.
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公开(公告)号:JP2001323081A
公开(公告)日:2001-11-20
申请号:JP2000141415
申请日:2000-05-15
Applicant: TORAY INDUSTRIES
Inventor: KIMURA MASAHIRO , YAMANE NOBUHISA , YOSHIDA MINORU
Abstract: PROBLEM TO BE SOLVED: To provide a polyester film for bonding with a rubber, not only light in weight property but also excellent in forming property, adhesion and heat resistance and a laminated product with the rubber. SOLUTION: This polyester film for bonding with the rubber is characterized by containing 0.01-5 wt.% particles having 0.1-10 μm particle diameter, showing
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公开(公告)号:JP2001288369A
公开(公告)日:2001-10-16
申请号:JP2000104472
申请日:2000-04-06
Applicant: TORAY INDUSTRIES
Inventor: CHIKUGI TOSHIHIRO , KOJIMA HIROJI , YOSHIDA MINORU
Abstract: PROBLEM TO BE SOLVED: To provide a resin composition having characteristics of both polyester and particles and having good moldability and heat resistance in the molding for producing a molded product. SOLUTION: This resin composition comprises a resin and particles and is characterized by that the particles are inorganic particles composed mainly of silicon, have lower intensity of hydroxy-bonded silicon than that of hydroxy- unbonded one when observed by 29Si CP-MASNMR analysis and are contained in the resin composition at a rate of 25-90 wt.%. The resin film is characterized by being made from the resin composition, or in the case of a laminated film, at least one layer thereof is characterized by being made from the resin composition described in one of the claim 1-7 (See the specification).
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公开(公告)号:JP2001288261A
公开(公告)日:2001-10-16
申请号:JP2000106357
申请日:2000-04-07
Applicant: TORAY INDUSTRIES
Inventor: KOJIMA HIROJI , CHIKUGI TOSHIHIRO , YOSHIDA MINORU
Abstract: PROBLEM TO BE SOLVED: To provide a polyester composition being excellent in cost performances, giving a film resembling recycled paper or groundwood paper in feeling and having high hiding power and high adaptability to drawing and a film made from the composition. SOLUTION: Provided are a polyester composition having a metal content and a phosphorus content simultaneously satisfying the following relationships (1) to (4): 0.01 wt.%
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公开(公告)号:JPH09300456A
公开(公告)日:1997-11-25
申请号:JP11499796
申请日:1996-05-09
Applicant: TORAY INDUSTRIES
Inventor: AEBA MIKA , YOSHIDA MINORU , TSUNASHIMA KENJI
Abstract: PROBLEM TO BE SOLVED: To provide a polyamide sheet capable of being cast at a high speed, having good flexibility and impact resistance and easy to stretch suppressing the crystallization of a non-stretched sheet. SOLUTION: A stretched molding polyamide sheet is characterized by that the total crystallization degree of a non-stretched sheet is below 30% and the γ-type crystallization thereof is 20% or less and produced by extruding a polyamide resin molten at temp. equal to or high than its m.p. (Tm) from a cap and closely bringing the extrudate into contact with a casting drum to cool and solidify the same to form a sheet. In this case, the molten resin is cooled to a temp. range from temp. falling crystallization start temp. (Tcb) to Tm+30 deg.C to be extruded from a cap and electrostatic force is applied to the molten body to bring it into close contact with the casting drum to cool and solidify the same. By this constitution, the crystallization of the non-stretched sheet is suppressed and high speed casting is possible and stretching becomes easy.
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公开(公告)号:JPH09300455A
公开(公告)日:1997-11-25
申请号:JP12498496
申请日:1996-05-20
Applicant: TORAY INDUSTRIES
Inventor: EGASHIRA KENICHI , YOSHIDA MINORU , TSUNASHIMA KENJI
Abstract: PROBLEM TO BE SOLVED: To provide a biaxially stretched polyester film capable of widely used because of high strength and excellent abrasion resistance and capable of obtaining good characteristics especially in a magnetic recording medium by specifying a ratio of the peak intensity in the lateral direction of the film and that in the thickness direction thereof measured by a laser Raman scattering method. SOLUTION: A biaxially stretched polyester film is characterized by that a ratio R(=ITD/IND) of the peak intensity (ITD) in the lateral direction of the film and the peak intensity (IND) in the thickness direction thereof at 1615cm measured by a laser Raman scattering method is 6 or more and obtained by biaxially stretching a non-stretched cast film and controlling the peak intensity ratio by the laser Raman scattering method after biaxial stretching of the film to the above mentioned range. By this constitution, the biaxially stretched polyester film having specific orientation in its lateral direction and having high strength and excellent abrasion resistance can be obtained.
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公开(公告)号:JPH09286053A
公开(公告)日:1997-11-04
申请号:JP10125896
申请日:1996-04-23
Applicant: TORAY INDUSTRIES
Inventor: YOSHIDA MINORU , AEBA MIKA , TSUNASHIMA KENJI
Abstract: PROBLEM TO BE SOLVED: To stably produce an excellent film free from a surface flaw such as an abrasion or a cavity flaw over long time in such a state that an oligomer (low molecular polymer) present in a polymer does not adhere to the surface of a casting drum or roll during the production of the film. SOLUTION: A drum or roll for producing a film has an alloy film having surface roughness of 1s or less and composed of at least one or more kind of a metal selected from group III, VI, VIII metals on the outer peripheral surface coming into contact with a molten polymer or a film thereof and used when a molten polymer is extruded from a cap and the extrudate is stretched to be formed into a film.
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