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31.发明专利
公开(公告)号：JP2002047360A
公开(公告)日：2002-02-12
申请号：JP2000251245
申请日：2000-08-22
Applicant: TORAY INDUSTRIES
Inventor： MACHIDA TETSUYA , TSUNASHIMA KENJI , SAKAMOTO JUN
Abstract: PROBLEM TO BE SOLVED: To prepare a polyphenylene sulfide film suitable as an insulating base material which is excellent in such properties for a circuit board as high frequency, low hygroscopicity, flame retardancy, solder resistance, thermal dimensional stability, hot melt workability or the like, and also to prepare a circuit board produced from the same. SOLUTION: The polyphenylene film (PPS) has a solder resistance of 260 deg.C =(Tm-80) deg.C and
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公开(公告)号：JP2002008665A
公开(公告)日：2002-01-11
申请号：JP2000186136
申请日：2000-06-21
Applicant: TORAY INDUSTRIES
Inventor： SAKAMOTO JUN , TSUNASHIMA KENJI , MACHIDA TETSUYA
IPC: C08J5/18 , B29C47/06 , B32B7/02 , C08J7/00 , C08K3/04 , C08K3/08 , C08K3/22 , C08L23/04 , C08L23/10 , C08L23/16 , C08L25/04 , H01B5/14 , H01B13/00 , H01M4/66
Abstract: PROBLEM TO BE SOLVED: To provide an electricity conductive resin sheet having no pinhole or the like, and of good quality excellent in chemical-resistance. SOLUTION: The electricity conductive resin sheet has an electricity conduction layer on at least one side surface of an electricity non-conduction layer. The electricity conductive resin sheet has a proper volume resistibility of the electricity non-conduction layer of 103 Ω.cm or more, a proper volume resistibility of the electricity conduction layer of 100 Ω.cm or less, and steam permeability of less than 50 g/(m2.day).
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公开(公告)号：JP2001026411A
公开(公告)日：2001-01-30
申请号：JP19759599
申请日：1999-07-12
Applicant: TORAY INDUSTRIES
Inventor： SAKAMOTO JUN , TSUNASHIMA KENJI , MACHIDA TETSUYA
Abstract: PROBLEM TO BE SOLVED: To improve mechanical strength and coefficient of thermal conductivity by heating aromatic polyamide film having specific tensile modulus, strength and weight reduction rate to a specified temperature at specific weight reduction speed in an inert atmosphere and carbonizing it to have specified tensile modulus, strength and coefficient of thermal conductivity. SOLUTION: The aromatic polyamide film having 8 GPa or higher tensile modulus, 350 MPa or higher tensile strength and less than 20% weight reduction rate at 500 deg.C under an inert atmosphere is roasted as a precursor to obtain the carbon film having 30 GPa or higher tensile modulus, 200 MPa or higher tensile strength and 100 W/m.K or higher coefficient of thermal conductivity in the facial direction. 50% or more of the aromatic diamine component and the dicarboxylic acid component constituting the polyamide are preferably derived from para- or meta-phenylene diamine and tere- or iso-phthalic acid, respectively. The roasting is preferably carried out at 0.5%/min or slower weight reduction speed until the weight reduction rate is 20% or more while adjusting the heating speed under an inert atmosphere.
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公开(公告)号：JP2000301587A
公开(公告)日：2000-10-31
申请号：JP32906299
申请日：1999-11-19
Applicant: TORAY INDUSTRIES
Inventor： TSUNASHIMA KENJI , SAKAMOTO JUN , MIYAGAWA KATSUTOSHI
Abstract: PROBLEM TO BE SOLVED: To provide a high speed casting method for a polyamide resin. SOLUTION: At a point where a molten polyamide resin sheet comes into contact with two moving cooling media, this polyamide resin sheet is held between two cooling media to be mechanically brought into close contact with cooling media and a water films or waterdrops are formed on the surfaces of the cooling media to form close contact force on both surfaces of the molten polyamide resin sheets by the surface tension due to the meniscuses between both surfaces of the sheets and the cooling media to cool the polyamide resin sheet in close contact state by surface tension and mechanical nip pressure.
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公开(公告)号：JP2000218679A
公开(公告)日：2000-08-08
申请号：JP2501699
申请日：1999-02-02
Applicant: TORAY INDUSTRIES
Inventor： TSUNASHIMA KENJI , SAKAMOTO JUN , MACHIDA TETSUYA
Abstract: PROBLEM TO BE SOLVED: To realize excellent productivity and quality at a high speed by manufacturing in a shafts intersecting state at a specific angle formed between a rotary shaft of a charging roll and a rotary shaft of a cooling medium. SOLUTION: A molten thermoplastic resin is extruded from a mouth, and then a thermoplastic resin sheet is brought into contact with charging roll and cooling medium, cooled and solidified while simultaneously holding the sheet between shafts intersecting state of the roll and the medium. Then, an angle θ formed between the shaft of the roll and the shaft of the medium is set to 0
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Patent Agency Ranking
公开(公告)号：JPH11342528A
公开(公告)日：1999-12-14
申请号：JP15290398
申请日：1998-06-02
Applicant: TORAY INDUSTRIES
Inventor： MINAMIZAWA HIDEHITO , SATO KIMIO , SAKAMOTO JUN
IPC: B29C48/30 , B29K101/12 , B29C47/12
Abstract: PROBLEM TO BE SOLVED: To suppress an adherence or a deposition of a deteriorated polymer or a low molecular weight material to or on a head lip by providing a layer containing a photocatalyst on a lower surface of a lip of at least a head. SOLUTION: A slit 4 to become a resin extrusion passage is formed at a head 1 via lips 2, 3. A slit interval regulating bolt 5 is arranged at the one lip 3. Photocatalyst containing layers 6 are provided on lower surfaces of the lips 2, 3. Thus, the head is formed to provide a layer containing a photocatalyst on a surface layer of the head lip. Accordingly, at the time of extruding a thermoplastic resin, an adherence or a deposition of a deteriorated polymer, a low molecular weight material or the like to or on the head lip can be suppressed. For example, in the case of molding a film, a thickness unevenness of a lateral direction is reduced, and a number of faults is decreased, thereby upgrading a quality of a product.
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公开(公告)号：JPH11157016A
公开(公告)日：1999-06-15
申请号：JP34218397
申请日：1997-11-27
Applicant: TORAY INDUSTRIES
Inventor： SAKAMOTO JUN , TSUNASHIMA KENJI
Abstract: PROBLEM TO BE SOLVED: To obtain a good preventive property of forgery and alteration at low cost by taking reticular matter containing a magnetic substance by a specific range of wt.% and laminating a film on at least one surface thereof. SOLUTION: The laminate is formed by making an adhesive layer with reticular matter including at least a magnetic substance of 1-90 wt.%, and laminating a film on at least one surface thereof. From the laminate, a random signal is obtained, which originates from the form of reticular matter. Such a magnetic signal has a diverse pattern output, and so on every part of the laminate, so that it can be regarded as a fingerprint. The existence of the fingerprint can prevent the forgery and alteration of the laminate. Also, the reticular matter has an adhesiveness per se relative to the film to be an adhesive layer in the laminate, thus forming reticular matter on the directly. Therefore, a laminate can be obtained at low cost suitable for preventing forgery and alteration.
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公开(公告)号：JPH10251415A
公开(公告)日：1998-09-22
申请号：JP5738397
申请日：1997-03-12
Applicant: TORAY INDUSTRIES
Inventor： SAKAMOTO JUN , TSUNASHIMA KENJI
Abstract: PROBLEM TO BE SOLVED: To obtain a film which can be given a random magnetic signal with an individually different pattern and which is useful for obtaining a card expected to have a remarkable forgery prevention effect by incorporating, into the same, a magnetic material of which a part in a specified proportion forms an aggregate. SOLUTION: A magnetic material (e.g. γ-iron oxide) of which at least 50vol.%, pref. at least 70vol.%, still pref. at least 90vol.%, forms an aggregate 2 is used here. The aggregate 2 is formed pref. at least from a magnetic material, a matrix polymer 1 (e.g. polyethylene terephthalate), and a polymer (e.g. polybutylene terephthalate) which is different from the matrix polymer or a polymer which is of the same kind as the matrix polymer but has a different mol.wt. Pref., the aggregate 2 contains at least 5vol.%. still pref. 10-90vol.%, magnetic material in terms of the S/N ratio of magnetic signal. Pref. at least one layer of a laminate film comprising at least two layers contains the aggregate.
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公开(公告)号：JPH10193488A
公开(公告)日：1998-07-28
申请号：JP286597
申请日：1997-01-10
Applicant: TORAY INDUSTRIES
Inventor： SAKAMOTO JUN , TSUNASHIMA KENJI
Abstract: PROBLEM TO BE SOLVED: To make forgery and alteration of a card difficult by specifying specific permittivity and apparent density of a film composite material obtained by adhesively laminating a film at least on one side surface of a porous base material, thereby performing low permittivity. SOLUTION: This film composite material is a laminate obtained by adhering a film at least on one side surface of a porous base material. And, the air is contained in the laminate to lower its specific permittivity or a random structure is given by the porous base material. This composite material has specific permittivity of 1.2 to 2.8, and apparent density of 0.3 to 1.3g/cm . As the porous base material, cloth having METSUKE amount (weight per square meter) of particularly 5 to 200g/m is more preferable from the viewpoint of folding crease resistance and strength. As material of the film, particularly polyethylene terephthalate has excellent electrical and mechanical characteristics and can be preferably used.
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公开(公告)号：JPH09151138A
公开(公告)日：1997-06-10
申请号：JP31094395
申请日：1995-11-29
Applicant: TORAY INDUSTRIES
Inventor： SAKAMOTO JUN , DEGUCHI YUKICHI
Abstract: PROBLEM TO BE SOLVED: To obtain the laminate capable of stably releasing a medicine over a long period by forming holes having a specific size in the outside film of a laminate comprising a film and a medicine-impregnated layer to arbitrarily control the release rate of the medicine. SOLUTION: This laminate comprises a thermoplastic resin film and a medicine-impregnated porous layer. Holes wherein the value of A expressed by the equation is >=2.5 are formed in one or both outside films of the laminate. The holes are preferably formed by heating the thermoplastic resin film. The film is preferably the one consisting mainly of a polyethylene terephthalate and having a crystal-melting heat of
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