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公开(公告)号：JP2002355913A
公开(公告)日：2002-12-10
申请号：JP2001166255
申请日：2001-06-01
Applicant: TORAY INDUSTRIES
Inventor： HARADA YUTAKA , TANAKA HARUMI , TSUNASHIMA KENJI
Abstract: PROBLEM TO BE SOLVED: To provide a laminated film and a film not having a defect such as foreign matter or the like and suitably used in an optical function material, particularly a liquid crystal display element. SOLUTION: The laminated film is a non-oriented film wherein a thermoplastic resin B is laminated on both surfaces of a thermoplastic resin A with a melt specific resistance of 1×10 Ω.cm or more in a peelable state and the absolute value of the surface potential of the thermoplastic resin A after the peeling of the thermoplastic resin B is not more than 1 kV.
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公开(公告)号：JP2002338677A
公开(公告)日：2002-11-27
申请号：JP2001146400
申请日：2001-05-16
Applicant: TORAY INDUSTRIES
Inventor： SONODA KAZUE , OSADA SHUNICHI , TSUNASHIMA KENJI
IPC: C08G63/90
Abstract: PROBLEM TO BE SOLVED: To reduce the amount of an oligomer generated in melt molding to thereby provide a process for producing a polyester resin composition excellent in the capability of controlling the deposition of an oligomer, surface properties and productivity. SOLUTION: A polyester composition is brought into contact with a solution having a temperature of 30-150 deg.C, a pH of above 5 and 9 or lower, and a phosphorus compound content of 0.01 wt.% or higher and below 50 wt.%. The polyester composition is also subjected to contact treatment in such a manner that the content of at least one element selected from germanium, antimony, titanium, silicon, lithium, sodium, potassium, calcium, magnesium and manganese, other than the particles of the polyester resin composition is below 300 ppm.
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公开(公告)号：JP2002321234A
公开(公告)日：2002-11-05
申请号：JP2001129310
申请日：2001-04-26
Applicant: TORAY INDUSTRIES
Inventor： HARADA YUTAKA , OKAZAKI IWAO , TSUNASHIMA KENJI
Abstract: PROBLEM TO BE SOLVED: To provide a thermoplastic resin film having excellent flatness, reduced in thickness irregularity and having high melt specific resistance, in particular the thermoplastic resin film suitable for a liquid crystal display element. SOLUTION: In the method for manufacturing the thermoplastic resin film by closely applying a molten sheet comprising a thermoplastic resin A with a melt specific resistance of 1×10 Ωcm or more to a cooling drum to form a film, the molten sheet, wherein a thermoplastic resin B with a melt specific resistance of Ωcm is laminated on both surfaces of the thermoplastic resin A and the end part of the sheet comprises only the thermoplastic resin B, is closely brought into contact with the cooling drum by the application of static electricity to obtain a laminated sheet and the thermoplastic resin B is removed from the laminated sheet to manufacture the thermoplastic resin film comprising the thermoplastic resin A.
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公开(公告)号：JP2002307551A
公开(公告)日：2002-10-23
申请号：JP2001119392
申请日：2001-04-18
Applicant: TORAY INDUSTRIES
Inventor： OKAZAKI IWAO , TSUNASHIMA KENJI , MIYAGAWA KATSUTOSHI
IPC: B29C55/16 , B29K101/12 , B29L7/00
Abstract: PROBLEM TO BE SOLVED: To obtain a biaxially oriented thermoplastic resin film which can enlarge the draw ratio of the film to increase the strength of the film because the film is thin and resistant to breakage by solving the problem that the film is not broken in a sequential biaxial orientation method, and the temperature of the end part of the film is not increased to cause the breakage of the film during orientation when the film is biaxially stretched simultaneously. SOLUTION: The molten thermoplastic resin is cooled quickly and solidified into a sheet. After the temperature of the middle part in the width direction of the sheet is made higher than that of the end part in the width direction of the sheet, the sheet is stretched biaxially and simultaneously in the longitudinal direction and in the width direction.
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公开(公告)号：JP2002210818A
公开(公告)日：2002-07-31
申请号：JP2001012842
申请日：2001-01-22
Applicant: TORAY INDUSTRIES
Inventor： TSUNASHIMA KENJI , OSADA SHUNICHI
Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing a biaxially oriented thermoplastic resin sheet having uniform various physical properties such as uniform thermal, optical, mechanical properties and the like along a widthwise direction, excellent thermal dimensional stability and mechanical properties and good flatness. SOLUTION: The method for manufacturing the biaxially oriented thermoplastic resin sheet comprises the steps of orienting a thermoplastic resin sheet by stretching the thermoplastic resin sheet at least in a longitudinal direction, further providing the sheet for a roll heat treatment under a higher temperature condition than a stretching temperature of the stretching, and thereafter providing the sheet for a tenter heat treatment.
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Patent Agency Ranking76.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：JP2002020508A
公开(公告)日：2002-01-23
申请号：JP2000201866
申请日：2000-07-04
Applicant: TORAY INDUSTRIES
Inventor： OKAZAKI IWAO , TSUNASHIMA KENJI
Abstract: PROBLEM TO BE SOLVED: To provide a polyphenylene sulfide film which maintains the heat resistance, frequency characteristics and mechanical characteristics of polyphenylene sulfide, has improved voltage resistance, hence has an improved capacitor production yield, and is suitable for producing highly reliable capacitors. SOLUTION: This polyphenylene sulfide film characterized by having a thermal adhesion-initiating temperature of
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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：JP2001062911A
公开(公告)日：2001-03-13
申请号：JP24274499
申请日：1999-08-30
Applicant: TORAY INDUSTRIES
Inventor： OSADA SHUNICHI , TSUNASHIMA KENJI , SONODA KAZUE
Abstract: PROBLEM TO BE SOLVED: To upgrade the quality and productivity of a thermoplastic resin sheet by irradiating a rotor with which a running film comes into contact, with plasma and thereby removing an organic matter sticking to the rotor. SOLUTION: The removal of an organic matter sticking to a rotor and the mitigation of damage to the surface material quality of the rotor due to plasma, are realized by adjusting the irradiation with the plasma in terms of the rotary velocity of the rotor, the irradiation distance of the plasma and the moving velocity of a plasma generating electrode. The decomposition and removal of the organic matter are made possible by irradiating the rotor which is becoming contaminated by contact with a running film with plasma and thus the organic matter-free rotor is obtained. Consequently, it is possible to remove a contamination caused by the organic matter while the film is running without once stopping the manufacture of a thermoplastic resin film, hence the inhibition of flaw generation in the film and the improvement of its productivity.
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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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