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公开(公告)号：JPH09267575A
公开(公告)日：1997-10-14
申请号：JP8123896
申请日：1996-04-03
Applicant: TORAY INDUSTRIES
Inventor： YAMAUCHI HIDEYUKI , UEDA TAKASHI , KIDA KENJI
Abstract: PROBLEM TO BE SOLVED: To make perforation properties good with low energy and to obtain a diameter of perforation in accordance with change in energy level by bonding a porous substrate on a laminated film for a heat-sensitive stencil printing original paper constituted of films of at least two layers. SOLUTION: A laminated film for a heat-sensitive stencil printing original paper is prepd. by a method wherein polyesters with different m.p. of at least 5 deg.C each other wherein an arom. dicarboxylic acid or an aliph. dicarboxylic acid and a diol are main constitutional ingredients are melt-extruded by using separate extruders and they are laminated in a nozzle manifold part or a polymer pipe entering to a nozzle and the polymers are extruded on a cast drum and the undrawn laminated film is drawn by means of a biaxial stretching method. A porous substrate is bonded on the laminated film for the heat- sensitive stencil printing original paper. It is possible to obtain good perforation properties by low energy and in accordance with change in energy level.
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公开(公告)号：JPH09254563A
公开(公告)日：1997-09-30
申请号：JP7039596
申请日：1996-03-26
Applicant: TORAY INDUSTRIES
Inventor： UEDA TAKASHI , DEGUCHI YUKICHI
Abstract: PROBLEM TO BE SOLVED: To realize the excellent gradability with excellent perforability even by low energy by forming of substantially amorphous polyester and crystalline polyester and setting the thickness to a specific range. SOLUTION: A substantially amorphous polyester does not almost exhibit a melting point even by a DCS method. The crystal melting energy measured by the DCS method is 12J/g or more preferably 3J/g or less. The crystalline polyester exhibits a melting point by the DCS method, and the crystal melting energy measured by the DCS method is 12J/g or more or more preferably 35J/g. These polyesters contain an aromatic dicarboxylic acid or an aliphatic dicalrboxylic acid and a diol as main components. These amorphous and crystalline polyesters are formed to a copolymer, a blend or a mixture thereof. The thickness of the polyester film is formed to be 0.2 to 5μm.
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公开(公告)号：JPH0920087A
公开(公告)日：1997-01-21
申请号：JP13111696
申请日：1996-04-26
Applicant: TORAY INDUSTRIES
Inventor： UEDA TAKASHI , YOSHIDA MINORU , OWATARI HISASHI , MIMURA TAKASHI
IPC: B41N1/24 , B29C55/12 , B29K67/00 , B29L7/00 , B32B7/06 , C08G63/181 , C08G63/183 , C08G65/08 , C08G65/32 , C08J5/18
Abstract: PROBLEM TO BE SOLVED: To provide a film for thermal stencil printing base paper which can be punched with a hole diameter corresponding to energy level, wherein individual holes are independent without being connected even with high energy and dehalogenation is possible as a base paper to be used for flash irradiation type plate-making. SOLUTION: A film for high definition thermal stencil printing base paper is formed of a composition which is a copolymer formed of a thermoplastic polyester and a polyether wherein a glass transition temperature (Tga) of the polyester and a melting point (Tmb) of the polyether is within a range of Tmb
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公开(公告)号：JPH07178885A
公开(公告)日：1995-07-18
申请号：JP11284994
申请日：1994-05-26
Applicant: TORAY INDUSTRIES
Inventor： AOKI SEIZO , UEDA TAKASHI , UEDA TOMOAKI
Abstract: PURPOSE:To enhance moist heat life properties, winding-up properties, slip properties and blocking preventing properties, to improve lamination properties and to enable recovery to improve productivity by forming a film from a polyester resin containing no polyether component and setting the concn. of carboxylic acid on the surface of the film to a specific value or more. CONSTITUTION:A thermoplastic resin film is composed of polyester, polyolefin or polyphenylene sulfide and has a film formed to at least the single surface thereof. The film is composed of a polyester resin substantially containing no polyether component and the concn. of carboxylic acid on the surface of the film is 0.01 or more. The ether component of the film is pref. 50mol% or less and the thickness thereof is pref. 0.01-2mum. Higher fatty acid or ester thereof is pref. added to the film.
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公开(公告)号：JP2002098805A
公开(公告)日：2002-04-05
申请号：JP2001194657
申请日：2001-06-27
Applicant: TORAY INDUSTRIES
Inventor： YOKOTA SUNAO , UEDA TAKASHI , SUDO MASAAKI
Abstract: PROBLEM TO BE SOLVED: To provide an antireflection laminated film in which the reflectance on the whole area can be minimized after the film is formed by controlling the initial objective value of the film thickness when the formation of the film is started, and to decrease the production loss. SOLUTION: The laminated film for antireflection film consists of a substrate layer and a laminated film on at least one surface of the substrate layer. The difference between the maximum and minimum of the reflectance on the laminated film surface in the wavelength region from 400 to 800 nm is within 2.0%.
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Patent Agency Ranking
公开(公告)号：JP2002052670A
公开(公告)日：2002-02-19
申请号：JP2000238019
申请日：2000-08-07
Applicant: TORAY INDUSTRIES
Inventor： USHIJIMA MASATO , UEDA TAKASHI , KINOSHITA SHUICHI
IPC: B41M5/00 , B32B27/20 , B32B27/36 , B41M5/382 , B41M5/40 , B41M5/50 , B41M5/52 , C08J5/18 , C08K5/00 , C08L67/02
Abstract: PROBLEM TO BE SOLVED: To provide a white laminated polyester film excellent in smoothness. SOLUTION: The white laminated polyester film consists of at least a white polyester layer (A) and a polyester layer (B), and the white polyester layer (A) contains titanium dioxide with a mean particle size of 0.01-3 μm and the surface glossiness of the film calculated from the side of the white polyester layer (A) is 60% or more and the number of projections with a height of 200 μm or more on the surface of the white polyester layer (A) is 20 pieces/m2 or less.
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公开(公告)号：JPH11115124A
公开(公告)日：1999-04-27
申请号：JP28671397
申请日：1997-10-20
Applicant: TORAY INDUSTRIES
Inventor： TANAKA SHIGERU , UEDA TAKASHI , NAGAI ITSUO
Abstract: PROBLEM TO BE SOLVED: To provide a laminated polypropylene film adapted to various packaging applications with excellent antistatic properties, slipperiness and transparency. SOLUTION: In this film obtained by laminating polypropylene resin layers (A layers) each containing crosslinking organic particles having a mean particle size of 4 μm or less and crystal and having crystal melting heat amount of 40 to 90 J/g on both side surfaces of a polypropylene resin layer (B layer) having an isotactic index (II) of 92% or more, surface resistance value is 14.0 log Ωor less, and static friction coefficient at the time of superposing films and rubbing them is 0.7 or less.
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公开(公告)号：JPH1192637A
公开(公告)日：1999-04-06
申请号：JP26001197
申请日：1997-09-25
Applicant: TORAY INDUSTRIES
Inventor： SHIMIZU YUZO , UEDA TAKASHI , CHIKUGI TOSHIHIRO
Abstract: PROBLEM TO BE SOLVED: To obtain a film, comprising a polyester composition containing hydroxyapatite particles having a specific particle diameter and a specific surface area, excellent in slipperiness, abrasion resistance and electric characteristics by specifying a specific resistance value in molten state of the polyester composition. SOLUTION: This polyester composition includes hydroxyapatite particles having 0.01-10 μm mean particle diameters, 50-500 m /g BET specific surface area and =0.01×10 Ω.cm specific resistance value in molten state. The film is obtained from the composition. The film can be preferably used for the usage of a magnetic recording medium, a capacitor, a food package, a general industrial use, etc.
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公开(公告)号：JPH09156246A
公开(公告)日：1997-06-17
申请号：JP31533295
申请日：1995-12-04
Applicant: TORAY INDUSTRIES
Inventor： UEDA TAKASHI , SHIMIZU YUZO , DEGUCHI YUKICHI
Abstract: PROBLEM TO BE SOLVED: To obtain thermal screen printing stencil paper of favorable perforation properties by low energy, developing excellent gradation properties by providing the perforation diameter corresponding to a change in energy level and excellent in printing durability and curl resistance. SOLUTION: A polyester film for thermal screen printing stencil paper is composed of a biaxially stretched polyester film with a thickness of 0.2-5.0μm having an m.p. of 240 deg.C or lower and containing a magnesium element in an amt. of 10ppm more and satisfying formula M-P
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公开(公告)号：JPH09156068A
公开(公告)日：1997-06-17
申请号：JP31533395
申请日：1995-12-04
Applicant: TORAY INDUSTRIES
Inventor： UEDA TAKASHI , YAMAUCHI HIDEYUKI , DEGUCHI YUKICHI
Abstract: PROBLEM TO BE SOLVED: To make perforating properties good even when energy used is low and to improve gradation properties and printing durability by bringing the sum of the refractive index in the longitudinal direction and the refractive index in the width direction of a biaxially drawn polyester film with a thickness in a specified range to at least specified value and making the m.p. of the film at most a specified value. SOLUTION: As a film for a heat-sensitive stencil printing raw paper, a biaxially drawn polyester film with a thickness of 0.2-5μm is used. In addition, the sum of the refractive index in the longitudinal direction and the refractive index in the width direction is made at least 3.2. By drawing and orientating the film into this range, perforation characteristics at low energy becomes good and a printed article with excellent gradation properties is obtd. In addition, it is necessary that the m.p. of the polyester is at most 240 deg.C and if the m.p. exceeds this, amt. of the energy required for perforation becomes large and perforation characteristics at low energy becomes worse. In addition, by making a hole with a perforation diameter in accordance with the change in energy level, a raw paper for a heat-sensitive stencil printing with excellent gradation properties, and printing durability can be obtd.
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