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公开(公告)号：JP2003205588A
公开(公告)日：2003-07-22
申请号：JP2002309429
申请日：2002-10-24
Applicant: TORAY INDUSTRIES
Inventor： OSADA SHUNICHI , SONODA KAZUE , MAEKAWA SHIGETOSHI
Abstract: PROBLEM TO BE SOLVED: To provide a glass protecting film which has an excellent resistance to tear and impact that can realize prevention of breakdown and scattering of glass and is also excellent in visibility on the occasion when it is stuck on the glass, and which exhibits an excellent effect for glass protection particularly in the fields of window panes for a building material, a vehicle and glass for display such as flat display glass, and others. SOLUTION: The glass protecting film is constituted of at least five layers or more and at least one of them contains a polyester having a 1,4- cyclohexanedimethanol as a component. COPYRIGHT: (C)2003,JPO
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公开(公告)号：JP2002322261A
公开(公告)日：2002-11-08
申请号：JP2001127193
申请日：2001-04-25
Applicant: TORAY INDUSTRIES
Inventor： OSADA SHUNICHI , TSUNASHIMA KENJI , SONODA KAZUE
IPC: C08G63/90
Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a high-quality polyester resin composition having a small amount of an oligomer generated at the time of melt molding and having excellent controllability to the deposited oligomer, surface appearance and productivity. SOLUTION: This polyester resin composition is obtained by bringing a polyester composition having an intrinsic viscosity of >=0.7 dl/g into contact with a solution having a content of phosphorus compounds within the range of 0.01-50 wt.%, a temperature within the range of 50-200 deg.C and a pH of
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公开(公告)号：JP2002121273A
公开(公告)日：2002-04-23
申请号：JP2000317647
申请日：2000-10-18
Applicant: TORAY INDUSTRIES
Inventor： SONODA KAZUE , OSADA SHUNICHI , TSUNASHIMA KENJI
Abstract: PROBLEM TO BE SOLVED: To obtain a polyester resin composition capable of decreasing oligomers generated in melt extrusion and so capable of decreasing cleaning frequency for the oligomers and increasing productivity and capable of obtaining products excellent in surface properties such as having no defect like streak and flaw, and to provide a method for producing the resin composition. SOLUTION: The polyester resin composition is characterized by containing
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公开(公告)号：JP2002097276A
公开(公告)日：2002-04-02
申请号：JP2000284885
申请日：2000-09-20
Applicant: TORAY INDUSTRIES
Inventor： OSADA SHUNICHI , TSUNASHIMA KENJI , SONODA KAZUE
Abstract: PROBLEM TO BE SOLVED: To provide a thermoplastic resin film with reduced fluctuation of thickness and good quality while maintaining productivity. SOLUTION: This thermoplastic resin film is composed of a resin having at least a peak in the range of 0.12 ppm to 0.18 ppm on the measurement of 1HNMR.
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25.发明专利
公开(公告)号：JP2001139709A
公开(公告)日：2001-05-22
申请号：JP32793899
申请日：1999-11-18
Applicant: TORAY INDUSTRIES
Inventor： TSUNASHIMA KENJI , OSADA SHUNICHI
Abstract: PROBLEM TO BE SOLVED: To produce a high-quality thermoplastic resin sheet without surface defects with a good productivity. SOLUTION: Foreign materials present on the surface of a thermoplastic resin sheet are brought into contact with a transfer roll and efficiently transferred to migrate. Thereby, the foreign materials on the sheet surface are removed to carry out the formation of a film.
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Patent Agency Ranking
公开(公告)号：JP2001089590A
公开(公告)日：2001-04-03
申请号：JP27188599
申请日：1999-09-27
Applicant: TORAY INDUSTRIES
Inventor： SONODA KAZUE , OSADA SHUNICHI , TSUNASHIMA KENJI
IPC: C08J5/18 , B29C55/06 , C08G63/183 , C08J7/00 , C08L67/00
Abstract: PROBLEM TO BE SOLVED: To provide a method for producing, in a good productivity, polyester film where a film surface is hardly fouled and surface properties are excellent. SOLUTION: This method for producing the polyester film comprises removing low molecular weight substances existing on the film surface be at least one surface treatment selected from the group consisting of solvent treatment, corona discharge treatment, plasma arc treatment and flame treatment in a step between a cooling/solidifying process and a longitudinally drawing process in producing the polyester film by extruding polyester from a slit-like nozzle, cooling/solidifying it and longitudinally drawing solidified film.
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公开(公告)号：JP2001058345A
公开(公告)日：2001-03-06
申请号：JP23379099
申请日：1999-08-20
Applicant: TORAY INDUSTRIES
Inventor： TSUNASHIMA KENJI , OSADA SHUNICHI
Abstract: PROBLEM TO BE SOLVED: To obtain a thermoplastic resin cast sheet reduced in thickness irregularity of a specific cycle of 0.2-2 (l/m) and a method for extruding and producing the same. SOLUTION: In a thermoplastic resin sheet excellent in thickness homogeneity, a ratio Pwl/Pwt of the spectrum intensity sum Pwl in a wave number of 0.20-2.0 (l/m) at a time of the Fourier analysis of the waveform of thickness irregularity measured in the longitudinal direction of the thermoplastic resin sheet to the spectrum intensity sum Pwt in a full wave number band is 0.25 or less. The lip interval of an extrusion cap is set to a value exceeding 0.8 mm before a molten thermoplastic resin sheet is formed and, after a molten resin is bled from the cap or passed through the cap, the lip interval of the cap is reduced to 0.8 mm or less to extrude the thermoplastic resin sheet. The thermoplastic resin sheet is produced by this extrusion method.
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公开(公告)号：JPH11198228A
公开(公告)日：1999-07-27
申请号：JP411798
申请日：1998-01-12
Applicant: TORAY INDUSTRIES
Inventor： TSUNASHIMA KENJI , OSADA SHUNICHI , MIYAGAWA KATSUTOSHI
Abstract: PROBLEM TO BE SOLVED: To provide a method for coating water-based coating material or the like having good productivity and quality such as thickness irregularities during a film making process, a manufacturing method of a film employing the method, and also form a simultaneously biaxially orientated film that combines high quality and high productivity done by the method. SOLUTION: The inline coating method is featured such that after a molten resin film is allowed to be in close contact with a cooling medium to thereby be solidified by cooling and then a coating material is applied to the cooled film surface, simultaneously blaxial orientation is carried out at a high orientation speed of 10 %/min or more in both the longitudinal direction and lateral direction. Also, the film manufacturing method employs an inline-coating method. In addition, a simultaneously biaxially orientated film is obtained by the manufacture, and includes a coating material layer having a thickness of 0.005-0.5 μm on the film surface.
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公开(公告)号：JPH11170357A
公开(公告)日：1999-06-29
申请号：JP35608497
申请日：1997-12-09
Applicant: TORAY INDUSTRIES
Inventor： OSADA SHUNICHI , TSUNASHIMA KENJI , MIYAGAWA KATSUTOSHI
Abstract: PROBLEM TO BE SOLVED: To reduce the variation in the widthwise physical properties after the biaxial stretching of a film so as to improve its productivity by a method wherein the film is heated by at least a non-contact heat source having a speci fied range between values in kW/m. SOLUTION: As the pre-heating method of a film by means of a plurality of set of rolls in a stretching process performed between slow speed rolls and high speed rolls for stretching lengthwise by means of the difference between the peripheral speeds of the rolls, a method for contacting with heating rolls or a method for heating with an infrared heater is employed. As a heating method for stretching at a desired temperature, the film is heated in a non- contact heat source having the heating capacity of 30-200 kW/m. If a heat source having the heating capacity larger than 200 kW/m, a device itself becomes too large, resulting in making the shortening of a stretching section difficult. In this case, in order to shorten the stretching section, the heat source is favorably located between the slow speed rolls and the high speed rolls. The nearer its location is to the contact position of the thermoplastic resin film and the high speed rolls, the favorabler the shortening of the section becomes.
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公开(公告)号：JPH10278157A
公开(公告)日：1998-10-20
申请号：JP9209797
申请日：1997-04-10
Applicant: TORAY INDUSTRIES
Inventor： OSADA SHUNICHI , TSUNASHIMA KENJI , MIYAGAWA KATSUTOSHI
IPC: B32B7/02
Abstract: PROBLEM TO BE SOLVED: To realize a high strength film and improve the tearing resistance and shock resistance of a film by a method wherein the relationship between the absolute value of the difference between the longitudinal refractive index and the lateral one of at least one layer of thermoplastic resin films and the absolute value of the difference between the longitudinal refractive index and the lateral one of the whole films is specified. SOLUTION: The laminated film is made of thermoplastic resin and formed by laminating at lest two layers or more of the film in the direction of its thickness. In this case, the absolute value of the difference between the longitudinal refractive index and the lateral one of at least one layer of the laminated film is set to be larger than the absolute value of the difference between the longitudinal refractive index and the lateral one of the whole films by 0.02 or more. The preferable number of layers is 3-200 layers, especially 5-64 layers. As the technique of the above-mentioned lamination, a melt and simultaneous extrusion method through a die under the state of respective layers being laminated by a coextrusion method such as a multimanifold die method, a feed block method or a static mixer method is preferable.
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