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

IPC: B29C33/04 ,  B29C39/38 ,  B29C47/88

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.

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

IPC: B29C33/04 ,  B29C39/38 ,  B29C47/88 ,  B29C55/00

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.

公开(公告)号：JP2001259500A

公开(公告)日：2001-09-25

申请号：JP2000077719

申请日：2000-03-21

Applicant: TORAY INDUSTRIES

Inventor： KAWATAKE HIROSHI ,  TOYAMA MASAHARU ,  HASHIMOTO KAZUYUKI

IPC: G02B5/20 ,  B05C5/02 ,  B05D1/26

Abstract: PROBLEM TO BE SOLVED: To provide a coating device capable of easily setting a gap between a coating head and a coating member uniform and uniformalizing coating thickness in the coating width direction in the coating device for applying a coating liquid on a member to be coated, particularly even in the case of coating a wide coating member having >=1 m coating width and a manufacturing method of a coated member and further a manufacturing device and method of a color filter with high productivity. SOLUTION: In the coating device provided with a coating head provided with a discharge port for discharging the coating liquid, a holding means for holding the coating head, a supporting means for supporting the member to be coated to face the discharge port of the coating head and a moving means for moving relatively one of the coating head or the member to be coated and for forming the coating film of the coating liquid discharged from the discharge port of the coating head on the member to be coated, the holding means and the coating head have respectively a holding surface for holding the coating head and at least one of the holding surfaces is not existed on the same plane in the longitudinal direction of the coating head.

公开(公告)号：JPH1052848A

公开(公告)日：1998-02-24

申请号：JP21128996

申请日：1996-08-09

Applicant: TORAY INDUSTRIES

Inventor： ISHITOBI HIROTAKA ,  TOYAMA MASAHARU ,  MORIE MASARU

IPC: B29C33/38 ,  B29C48/305 ,  B29K27/12 ,  B29K105/04 ,  B29L7/00 ,  B29C47/14

Abstract: PROBLEM TO BE SOLVED: To prevent deteriorated polymer generated from the inside of a nozzle from sticking on a sheet-like article extruded from the nozzle by applying a composite film of a nickel-phosphorous alloy and a fluororesin on an extrusion liq. contacting part of the nozzle in manufacturing of a plastic sheet. SOLUTION: A composite film 3 of a nickel-phosphorous alloy and a fluororesin is applied on the whole face of an extrusion liq. contacting part of a nozzle. For this purpose, the surface of an article to be treated is cleaned by shot blast wherein steel balls collide with the surface at high speed. Then, electrolessly plating wherein electrons discharged by oxidation of a reducing agent change metal ions into a metal film to form a rigid and porous nickel- phosphorous alloy film is performed. Then, heat treatment is performed to obtain higher surface hardness. Then, this film is impregnated with the fluororesin and heat treatment is performed e.g. at 300-400 deg.C for calcining the fluororesin.

公开(公告)号：JPH09131559A

公开(公告)日：1997-05-20

申请号：JP29143695

申请日：1995-11-09

Applicant: TORAY INDUSTRIES

Inventor： TOYAMA MASAHARU ,  ENDO YOSHIKAZU ,  YOSHIMURA YUJI

IPC: G02B5/20 ,  B05C5/02 ,  B05D1/26 ,  G02F1/1335

Abstract: PROBLEM TO BE SOLVED: To stabilize the shape of a liquid pool during the formation of a coating film and to make the formation of the coating film having a uniform film thickness possible by setting the length along the progressing direction of the bottom end face of a front lip of a coating applicator shorter than the length along the progressing direction of the bottom end face of a rear lip. SOLUTION: This coating device is constituted by arranging a slit die 40 as the coating applicator above a stage 6 so as to face this stage. This slit die 40 has the front lip 58 and the rear lip 60. These lips are stuck to each other forward and backward in the forward and backward moving directions of the stage 6 and are integrally coupled to each other. A manifold 62 is formed in the central part in the slit die 40 and is connected via an inside passage to a coating liquid supplying hose. In such a case, the length LF at the bottom end face 70 of the front lip 58 is set shorter than the length LR at the bottom end face 74 of the rear lip 60. As a result, the shape of the liquid pool is stabilized during the formation of the coating film. The formation of the coating film having the uniform film thickness is made possible.

公开(公告)号：JPH09253555A

公开(公告)日：1997-09-30

申请号：JP6652996

申请日：1996-03-22

Applicant: TORAY INDUSTRIES

Inventor： TOYAMA MASAHARU ,  ENDO YOSHIKAZU ,  YOSHIMURA YUJI

IPC: G02B5/20 ,  B05C5/02

Abstract: PROBLEM TO BE SOLVED: To make it possible to stably form coating films of a uniform thickness on the surface of a member to be coated. SOLUTION: The coating applicator for executing the coating method to be used for production of color filters is formed of a slit die 40 for holding a shim 62 between a front lip 58 and a rear lip 60, a manifold 68 for a coating liquid formed within this slit die 40 and the shim 62 formed between the front and rear lips 58 and 60. The device has a slit which communicates with this manifold 68 and is regulated with the bottom end opening as a discharge port. The spacing between lip wetting surfaces 76 forming the front and rear lips 58 and 60 covers the entire area of the lip wetting surfaces 76 and is confined within 4% of the deviation from the reference value.

公开(公告)号：JPH09131560A

公开(公告)日：1997-05-20

申请号：JP29143795

申请日：1995-11-09

Applicant: TORAY INDUSTRIES

Inventor： TOYAMA MASAHARU ,  ENDO YOSHIKAZU ,  YOSHIMURA YUJI

IPC: G02F1/1335 ,  B05C5/02 ,  B05D1/26

Abstract: PROBLEM TO BE SOLVED: To prevent the coating film formed on the front surface of a member to be coated from largely protruding from the discharge width of a discharge port and to make the film thickness of the coating film uniform in a transverse direction by disposing limiting means for limiting the discharge area of a coating liquid within a regulated discharge width between both ends of the discharge port. SOLUTION: A manifold 62 is formed in the central part in a slit die 40 and is always connected via an inside passage to a coating liquid supplying hose. A slit 64 extends perpendicularly downward from this manifold 62. This slit 64 opens to the rear surface of a slit die 40. In such a case, upward facing slopes 70 communicating with both ends of the discharge port 66 and horizontal relief surfaces 72 respectively communicating with the top ends of these slopes 70 are formed on the rear surface of the slit die 40 and are functioned as the limiting means. Namely, the clearance therebetween larger than the clearance H is sufficiently largely assured to limit the occurrence of capillarity and to confine the film thickness of the coating film within the permissible range over the entire area in its transverse direction.

公开(公告)号：JPH07329147A

公开(公告)日：1995-12-19

申请号：JP12496694

申请日：1994-06-07

Applicant: TORAY INDUSTRIES

Inventor： ENDO YOSHIKAZU ,  YOSHIMURA YUJI ,  TOYAMA MASAHARU

IPC: B29C48/31 ,  B29C48/92 ,  B29L7/00 ,  B29C47/16 ,  B29C47/92

Abstract: PURPOSE:To obtain a cap gap adjusting method adaptable without altering a cap shape and excellent in controllability and a cap by correcting the load applied to a cap when the difference between the loads of adjacent adjusting means exerted on the cap exceeds a predetermined upper limit value and adjusting the difference between the loads to the predetermined upper limit value. CONSTITUTION:When a molding error is larger than a tolerance molding error, a control unit 7 corrects the load pushing down the upper lip of a cap 3 of the heat bolt 31 at the first position exceeding the tolerance molding error. In correction operation, the control unit 7 outputs a correction signal to a power supply 33 to correct the voltage applied to the heater of the heat bolt 31 or a current supply time. After the completion of this correction operation, the control unit 7 repeats correction operation until the molding error enters the tolerance molding error.

公开(公告)号：JP2002096370A

公开(公告)日：2002-04-02

申请号：JP2000291641

申请日：2000-09-26

Applicant: TORAY INDUSTRIES

Inventor： NOMURA FUMIYASU ,  CHIGIRA NOBUTSUGU ,  TOYAMA MASAHARU

IPC: B29C47/86 ,  B29C47/88 ,  B29C48/305 ,  B29C48/31 ,  B29C48/92 ,  B29D7/01 ,  B29C47/14

Abstract: PROBLEM TO BE SOLVED: To provide a method for inexpensively and stably manufacturing a sheet with good accuracy of thickness unevenness in which the thickness unevenness is small when it is started and loss of raw material when it is started and time can be remarkably decreased and it is also expected that the shape of a raw sheet is good. SOLUTION: A lip A provided with thickness adjusting means arranged in a line along the width direction at the apex part and a lip B with a uniformly flat opposite face in the width direction on the lip A side of the apex part are provided. At the back parts of the lip A and the lip B, fixing members approximately uniformly providing a fixing force in the width direction are provided. In addition, between the apex parts of the lip A and the lip B, a gap part with an approximately uniform gap in the width direction is formed and between the central parts of the lip A and the lip B, a manifold extending in the width direction is formed.

公开(公告)号：JPH07205254A

公开(公告)日：1995-08-08

申请号：JP45994

申请日：1994-01-07

Applicant: TORAY INDUSTRIES

Inventor： TOYAMA MASAHARU ,  YOSHIMURA YUJI

IPC: B29C47/86 ,  B29C48/30 ,  B29C48/31 ,  B29C48/50 ,  B29C48/92 ,  B29C47/12 ,  B29C47/16 ,  B29C47/58 ,  B29C47/92

Abstract: PURPOSE:To provide a die which can clearly obtain a thermal expansion amount of a heating bolt to an adjacent bolt without influence of fluctuations and a creep at individual heating bolts due to a screw even if melting extrusion is executed for a long time and to easily maintain a lateral extrusion thickness of a sheetlike material constant. CONSTITUTION:A die for manufacturing a sheetlike material to continuously extrude synthetic resin from a slit gap between a pair of opposed lip blocks 23 and 24 has a plurality of heating bolts arranged longitudinally of the gap at the one block 23, and heating means 16 connected to a controller 17 which inputs a temperature program for eliminating a thickness unevenness of the material 21. On the other hand, a plurality of manual regulating bolts are provided longitudinally of the gap 22 at the other block 24.