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公开(公告)号：ID21788A
公开(公告)日：1999-07-22
申请号：ID990066
申请日：1998-07-09
Applicant: TORAY INDUSTRIES
Inventor： TSUNASHIMA KENJI , TOYAMA MASAHARU , MIYAKAWA KATSUYOSHI , OSADA SHUNICHI , CHIGIRA NOBUTSUGU , YOSHIMURA HIROSHI
Abstract: The present invention provides a method and apparatus for producing a thermoplastic resin film, which allows a biaxially oriented polyester film to be formed at a high speed of 400 m/min or more. The method of the present invention is a method for producing a thermoplastic resin film, in which a molten thermoplastic resin film is brought into contact with a cooling medium, to be cooled and solidifed, for producing a cast film, characterized in that the surface temperature of the cooling medium in the region immediately before the melt reaching position is kept at not lower than the glass transition temperature Tg and not higher than the melting point Tm of the thermoplastic resin. The apparatus of the present invention is an apparatus for producing a thermoplastic resin, characterized in that a cooling medium has a heater and a cooler to ensure that the surface temperature of the cooling medium in the region immediately before the melt reaching position is kept at not lower than the glass transition temperature Tg and not higher than the melting point Tm of the thermoplastic resin, and that the surface temperature of the cooling drum in the region immediately before the film leaving position is kept lower than the the glass transition temperature Tg of the thermoplastic resin.
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公开(公告)号：CA2264554A1
公开(公告)日：1999-01-21
申请号：CA2264554
申请日：1998-07-09
Applicant: TORAY INDUSTRIES
Inventor： OSADA SHUNICHI , MIYAKAWA KATSUTOSHI , YOSHIMURA HIROSHI , TSUNASHIMA KENJI , TOYAMA MASAHARU , CHIGIRA NOBUTSUGU
Abstract: A method of producing a thermoplastic resin film capable of giving a biaxially oriented polyester film at a speed of as high as at least 400 m/min and an apparatus therefor. Specifically, a method of producing a thermoplastic film, wherein a molten thermoplastic resin film is closely bonded to, and cooled and solidified, on a cooling medium to prepare a cast film, characterized in that the surface temperature of the medium immediately before the melt is brought into contact therewith is higher than a glass transition temperature Tg of the thermoplastic resin but is lower than a melting point Tm thereof. The apparatus has a heater device and a cooler provided in the cooling medium so that the surface temperature of the medium immediately before the melt is brought into contact therewith is higher than the glass transition temperature Tg of the thermoplastic resin but is lower than the melting point Tm thereof, and the surface temperature of the medium immediately before being peeled off is maintained to be lower than the glass transition temperature Tg of the thermoplastic resin.
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公开(公告)号：EP1795326A4
公开(公告)日：2011-10-19
申请号：EP05785246
申请日：2005-09-22
Applicant: TORAY INDUSTRIES
Inventor： FURUNO YOSHIHARU , NOMURA FUMIYASU , CHIGIRA NOBUTSUGU
CPC classification number: B29C47/145 , B29C47/0021 , B29C47/0057 , B29C47/061 , B29C47/062 , B29C47/065 , B29C47/56 , B29C2947/926 , B29L2007/008 , B29L2009/00
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4.发明公开INTERMITTENT FILM FORMING SYSTEM AND INTERMITTENT FILM FORMING METHOD 审中-公开SYSTEM UND VERFAHREN ZUR BILDUNG EINES UNTERBROCHENEN FILMS
公开(公告)号：EP2067602A4
公开(公告)日：2017-08-02
申请号：EP07828431
申请日：2007-09-26
Applicant: TORAY INDUSTRIES
Inventor： MINOURA KIYOSHI , CHIGIRA NOBUTSUGU , NOMURA FUMIYASU
CPC classification number: B29C59/02 , B29C31/08 , B29C37/0007 , B29C37/0014 , B29C37/0017 , B29C43/00 , B29C43/021 , B29C43/34 , B29C43/50 , B29C43/52 , B29C2043/3422 , B29C2043/5038 , B29C2059/023 , B29K2105/256 , B29L2011/0016 , G02B5/02
Abstract: An intermittent film forming system comprising at least a mold (3) having a fine projections and depressions shape formed on the surface, a press (10) for pressing a film to the surface of the mold, atransportation (50, 60) for carrying the film, and a releasing device (20) for releasing the film from the surface of the mold, wherein the releasing device is provided at least with a stripper roll (21) for stripping the film, a means (23) for rotary driving the stripper roll, an auxiliary roll (22) arranged substantially in parallel with the stripper roll across a film path line, a means (24) for moving the auxiliary roll on the periphery of the stripper roll such that the film embraces the stripper roll, and a guide (25) for moving the stripper roll and the auxiliary roll in the vicinity of the surface of the mold in parallel therewith, while maintaining the relative positional relationship that the film embraces the stripper roll.
Abstract translation: 一种间歇式成膜系统，包括至少一个在表面上形成的具有微小凸起和凹陷形状的模具（3），一个用于将膜压在模具表面上的压力机（10），在运输（50,60） 薄膜和用于从模具表面释放薄膜的释放装置（20），其中释放装置至少设有用于剥离薄膜的剥离辊（21），用于旋转驱动剥离器的装置（23） 一个辅助辊（22），该辅助辊基本上与剥离辊平行地穿过膜路径线设置;一个装置（24），用于在剥离辊的周边上移动辅助辊使得膜包围剥离辊;以及 （25），用于在保持薄膜环绕脱模辊的相对位置关系的情况下，使脱模辊和辅助辊平行地在模具表面附近移动。
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5.发明专利
公开(公告)号：JP2002347099A
公开(公告)日：2002-12-04
申请号：JP2001158570
申请日：2001-05-28
Applicant: TORAY INDUSTRIES
Inventor： CHIGIRA NOBUTSUGU , OKASHIRO HIDETOSHI , NOMURA FUMIYASU
IPC: B29C48/305 , B29C48/92 , B29C47/14 , B29C47/92
Abstract: PROBLEM TO BE SOLVED: To provide a mouthpiece for manufacturing a sheet for obtaining a smooth sheet by stably executing steps of discharging a molten material from the mouthpiece and drawing by a cooling roll at a high speed of 60 m/min or more, to manufacture the sheet by using particularly an electrostatic applying method, and to provide an apparatus and a method for manufacturing the sheet. SOLUTION: The mouthpiece for discharging the molten material from a slit to the sheet comprises a molten material heating means for heating the molten material at least at a center of a sheet widthwise direction of the mouthpiece, and an end molten material temperature regulating means for regulating a temperature of the molten material near the end of the sheet in the widthwise direction of the sheet independently from the center. The apparatus and the method for manufacturing the sheet are provided.
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Patent Agency Ranking6.发明公开
公开(公告)号：EP0943414A4
公开(公告)日：2002-07-10
申请号：EP98931031
申请日：1998-07-09
Applicant: TORAY INDUSTRIES
Inventor： TSUNASHIMA KENJI , TOYOMA MASAHARU , MIYAKAWA KATSUTOSHI , OSADA SHUNICHI , CHIGIRA NOBUTSUGU , YOSHIMURA HIROSHI
CPC classification number: B29C39/38 , B29C33/044 , B29C33/046 , B29C47/0021 , B29C47/8845 , B29C47/887 , B29C47/888
Abstract: A method of producing a thermoplastic resin film capable of giving a biaxially oriented polyester film at a speed of as high as at least 400 m/min and an apparatus therefor. Specifically, a method of producing a thermoplastic film, wherein a molten thermoplastic resin film is closely bonded to, and cooled and solidified, on a cooling medium to prepare a cast film, characterized in that the surface temperature of the medium immediately before the melt is brought into contact therewith is higher than a glass transition temperature Tg of the thermoplastic resin but is lower than a melting point Tm thereof. The apparatus has a heater device and a cooler provided in the cooling medium so that the surface temperature of the medium immediately before the melt is brought into contact therewith is higher than the glass transition temperature Tg of the thermoplastic resin but is lower than the melting point Tm thereof, and the surface temperature of the medium immediately before being peeled off is maintained to be lower than the glass transition temperature Tg of the thermoplastic resin.
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公开(公告)号：JP2002283438A
公开(公告)日：2002-10-03
申请号：JP2001085063
申请日：2001-03-23
Applicant: TORAY INDUSTRIES
Inventor： NOMURA FUMIYASU , CHIGIRA NOBUTSUGU , OKASHIRO HIDETOSHI
Abstract: PROBLEM TO BE SOLVED: To provide a method and an apparatus for manufacturing a rolled sheet capable of reducing a thickness unevenness of a sheet and upgrading a rolled raw fabric shape. SOLUTION: The apparatus for manufacturing the rolled sheet comprises a mechanical regulating mechanism 25 for regulating a gap of lips 12, a temperature regulating mechanism 27 for regulating a temperature of a molten resin at the distal end of the lip, a thickness meter 10 for measuring the thickness of the sheet after stretching, and a shape measuring or arithmetic means 11 for measuring the outer diameter of a raw fabric shape. The mechanism 25 controls to eliminate a sheet thickness unevenness and a deviation from its target value based on information of the meter. The mechanism 27 controls to eliminate a raw fabric shape deviation and a deviation from its target value based on information of the means 11. The method for manufacturing the rolled sheet comprises the steps of controlling until the sheet thickness unevenness becomes within its target value by the mechanism 25 from the start of manufacturing the sheet, and switching to the raw fabric shape deviation control by the temperature control mechanism 27 after the sheet thickness unevenness becomes within the target value.
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公开(公告)号：JP2002248670A
公开(公告)日：2002-09-03
申请号：JP2001048280
申请日：2001-02-23
Applicant: TORAY INDUSTRIES
Inventor： CHIGIRA NOBUTSUGU , NOMURA FUMIYASU , OKASHIRO HIDETOSHI
Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing a sheet capable of simply and effectively regulating its thickness so as to manufacture the sheet and a mouthpiece for extrusion molding the sheet. SOLUTION: The mouthpiece for manufacturing the sheet enables the accurate regulation of the thickness by utilizing a thermal expansion of a bolt, then the regulation of the thickness of the end of the sheet from a neutral point of a lip deformation. Thus, the mouthpiece is free from a problem steps such as a disengagement of a clip or the like in the manufacturing process of the sheet.
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公开(公告)号：JP2002172679A
公开(公告)日：2002-06-18
申请号：JP2000372266
申请日：2000-12-07
Applicant: TORAY INDUSTRIES
Inventor： CHIGIRA NOBUTSUGU , NOMURA FUMIYASU , OKASHIRO HIDETOSHI
Abstract: PROBLEM TO BE SOLVED: To provide a method of manufacturing a sheet which can further shorten a start-up time at the start of production in the case of controlling a sheet thickness by using a thickness gage. SOLUTION: On the occasion when the sheet S is extruded from a die 4 and stretched, the thickness of the end parts of the sheet S is measured by end part thickness gages 6b and that of the product part thereof by a product part thickness gage and, based on the measured values, apertures of end part discharge zones and a product part discharge zone of the die 4 are regulated to make the sheet S have an intended thickness. In this method, the end part thickness gages 6b and the product part thickness gage 6a are disposed between the die 4 and a stretching process 7. Besides, a second product part thickness gage 8 is disposed behind the stretching process 7, and rough regulation is conducted by the product part thickness gage 6a from the start of extrusion to a steady-state speed, while fine regulation is conducted by the second product part thickness gage 8 from the steady-state speed and onward.
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公开(公告)号：JP2002144404A
公开(公告)日：2002-05-21
申请号：JP2000341340
申请日：2000-11-09
Applicant: TORAY INDUSTRIES
Inventor： CHIGIRA NOBUTSUGU , NOMURA FUMIYASU , OKASHIRO HIDETOSHI
Abstract: PROBLEM TO BE SOLVED: To provide a diehead, for a resin sheet with high versatility, which can be applied for the molding of various kinds of resin sheets having a different end part thickness, with the use of the same diehead. SOLUTION: This diehead 4 for the resin sheet has a slit 13 through which the resin sheet S is discharged into a gap between a pair of lips 12 and 12 and a plurality of gap adjusting mechanisms 17e and 17p for adjusting the gap of the slit 13 along at least one of the longer directions of the lips. The gap adjusting mechanism 17e in the end part discharge region E of the slit 13 and the gap adjusting mechanism 17p in the product part discharge region P can be operated independently of each other and the manipulated variable of the gap adjusting mechanism 17e in the end discharge region E is set to be larger than the manipulated variable of the gap adjusting mechanism 17p in the product part discharge region P.
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