-
公开(公告)号：JPH0671727A
公开(公告)日：1994-03-15
申请号：JP22827492
申请日：1992-08-27
Applicant: TORAY INDUSTRIES
Inventor： OKASHIRO HIDETOSHI , IKEGAMI TETSUO , ISHIDA KOUJIYUN , ONISHI KUNIHIKO
Abstract: PURPOSE:To provide a water film forming device for a resin film manufacturing apparatus which can be uniformly heated with a small size and wet air can be easily controlled to a suitable temperature. CONSTITUTION:The wafer film forming device forms a water film on a surface of a casting drum 4 to be used for a resin film manufacturing apparatus for manufacturing a resin film by supplying sheetlike melted resin onto the drum 4. The device comprises a body 24, a pipe 26 and a sheathed heater 23. The body 24 can be disposed near the surface of the drum and has a chamber 24 to be opened at a surface side of the drum. The pipe 26 injects wet air to the chamber 25 of the body 24. The heater 23 is buried in the body 24 to heat the pipe 26 and the wet air in the chamber 25 of the body 24.
-
公开(公告)号：JPS637131B2
公开(公告)日：1988-02-15
申请号：JP875983
申请日：1983-01-24
Applicant: TORAY INDUSTRIES
Inventor： SUMYA TAKASHI , YABE KENJI , OKASHIRO HIDETOSHI
-
公开(公告)号：JPS60172517A
公开(公告)日：1985-09-06
申请号：JP2863684
申请日：1984-02-20
Applicant: TORAY INDUSTRIES
Inventor： TAGAMI YUUICHI , OKASHIRO HIDETOSHI
Abstract: PURPOSE:To automatically adjust the width-wise thickness of a sheet-shaped matter by providing a heating body adapted to change the temperature of a polymer passing through a slit section and pushing body for changing the clearance width of the slit section to make both mechanisms operate selectively in accordance with a pattern varied in the thickness. CONSTITUTION:A discharge section 331 is heated up to the temperature correspoinding to the quantity of electricity fed to a heater 35 through a supply power line 354. The viscocity of a melt body passing through a slit section 32 is varied to change the amount of discharge. On the other hand, on the side of the discharge section 341, a heater bolt 36 rises in the temperature according to quantity of electricity fed through a power supply line 362 and presses the discharge section 341 with a thermal expension to change the clearance of the slit section 32. When a thickness gauge 5 detects a large undulation in the thickness pattern of a sheet-shaped matter and the level of the thickness spot is also large and hence, judgment is made by the level of the spot. When the spot is above a fixed level, a slit clearance adjusting mechanism depending on the difference in the thermal expansion is operated with a controller 7. When it is below the fixed level, a temperature adjusting mechanism is operated.
-
公开(公告)号：JP2003089141A
公开(公告)日：2003-03-25
申请号：JP2001281395
申请日：2001-09-17
Applicant: TORAY INDUSTRIES
Inventor： NISHIDA TAKANORI , KAWATAKE HIROSHI , OKASHIRO HIDETOSHI
IPC: B29C47/08 , B29C47/88 , B29K101/12 , B29L7/00
Abstract: PROBLEM TO BE SOLVED: To provide a most effective film manufacturing apparatus utilizing a static electricity applying method and enabling high speed production without damaging the quality of a film. SOLUTION: In the film manufacturing apparatus having a static electricity applying means for applying static electricity to the film molded from a resin above a part for bringing the film into contact with a feed roll at first, the static electricity applying means has the main electrode connected to a power supply and an auxiliary electrode provided on the side opposite to the feed roll with respect to the main electrode and an adjusting means for adjusting the gap between the main electrode and the auxiliary electrode is provided. By adjusting the gap between the main electrode and the auxiliary electrode by the adjusting means, corona discharge is generated between the main electrode and the film and corona discharge is uniformly generated between the main electrode and the auxiliary electrode to manufacture the film at a high speed.
-
公开(公告)号：JP2002283432A
公开(公告)日：2002-10-03
申请号：JP2001086504
申请日：2001-03-26
Applicant: TORAY INDUSTRIES
Inventor： NOMURA FUMIYASU , CHIGIRA NOBUTSUGU , OKASHIRO HIDETOSHI
Abstract: PROBLEM TO BE SOLVED: To provide a mouthpiece for manufacturing a sheet capable of regulating a thickness unevenness in a high accuracy. SOLUTION: The mouthpiece for manufacturing the sheet comprises a push and pull means for pushing and pulling a pair of lips 3, 4 to regulate a gap 2 between the pair of lips 3 and 4 to discharge a molten resin from the gap 2 in a sheet-like state. In this mouthpiece, as the push and pull means, a push and pull means 9 for finely regulating and a push and pull means 10 for coarsely regulating are disposed in series and mounted at the lip 3 of one side of the pair of lips 3, 4.
-
Patent Agency Ranking
公开(公告)号：JP2002282763A
公开(公告)日：2002-10-02
申请号：JP2001089534
申请日：2001-03-27
Applicant: TORAY INDUSTRIES
Inventor： NAKAGAWA YUSAKU , NAGAI HIROSHI , OKASHIRO HIDETOSHI
Abstract: PROBLEM TO BE SOLVED: To provide a coating method and coating apparatus, by which the adjustment of coating thickness is performed with excellent stability and reproductivity and the surface of a web is uniformly coated, and to provide a method of forming a resin film using the coating method. SOLUTION: In the coating method performed by applying a coating material on the traveling web and scraping the excessively applied coating material with a wire bar to control the coating thickness, the relation between the coated layer thickness of the wire bar and the coating thickness is defined, and the wire bar provided with the coated layer thickness to satisfy the relation is used. As the wire bar, the one having the coated layer on its surface which is formed such that the variation of the outside diameter of the bar including the coated layer is
-
公开(公告)号：JP2002273779A
公开(公告)日：2002-09-25
申请号：JP2001076571
申请日：2001-03-16
Applicant: TORAY INDUSTRIES
Inventor： TAKASHIMA NAOHIRO , KAWATAKE HIROSHI , OKASHIRO HIDETOSHI
IPC: B29C47/88 , B29C48/305 , B29C47/14
Abstract: PROBLEM TO BE SOLVED: To provide a film manufacturing device which makes a high speed manufacture possible without spoiling the quality of the film. SOLUTION: A main electrode 3 which applies static electricity to a film and an auxiliary electrode 5 which is grounded are arranged on the top of a section wherein the film S formed of a resin is first brought into contact with a carrying roll. In this case, the auxiliary electrode 5 is formed in a manner to cover and surround the opposite side from the film facing side of the main electrode 3. At the same time, the covering angle θ to the main electrode 3 is set to be in a range of 110 to 240 deg..
-
公开(公告)号：JP2001260202A
公开(公告)日：2001-09-25
申请号：JP2000078111
申请日：2000-03-21
Applicant: TORAY INDUSTRIES
Inventor： TAKASHIMA NAOHIRO , KAWATAKE HIROSHI , OKASHIRO HIDETOSHI
Abstract: PROBLEM TO BE SOLVED: To provide a method for molding a resin sheet excellent in thickness uniformity efficiently while improving productivity and an apparatus for the method. SOLUTION: In the method in which a molten resin is extruded from a slit die 1 into a shape of sheet in gaseous atmosphere, the molten resin sheet S is made to be in contacted with the surface of a moving cooling medium 2 through an electrostatic contact biasing means 3, at least the water content of the gaseous atmosphere of the means 3 is controlled at 30-588 g/m3. More preferably, the temperature of the gaseous atmosphere is controlled at 30-350 deg.C.
-
公开(公告)号：JP2001079864A
公开(公告)日：2001-03-27
申请号：JP26013499
申请日：1999-09-14
Applicant: TORAY INDUSTRIES
Inventor： YAMAKAWA KATSUSHI , NISHIDA TAKANORI , OKASHIRO HIDETOSHI
IPC: B29C41/50 , B29C41/28 , B29C48/305 , B29L7/00 , B29C47/14
Abstract: PROBLEM TO BE SOLVED: To keep a distance to a cast surface at a desired value and to protect the cast surface from damage by providing distance detectors for detecting the distance. SOLUTION: In an apparatus for producing a resin film, distance detectors 4-8 are installed in a mouthpiece device 1 or a film adhesion device 2, and on the basis of distance information from the detectors 4-8, the distance between the device 1 or the device 2 and a cast surface is made always to be grasped. The distance between the device 1 or the device 2 and the cast surface can be kept/controlled at a desired value so that the resin film can be produced stably. Moreover, when the device 1 or the device 2 approaches the cast surface abnormally, by the automatic sheltering of the device 1 or the device 2, the cast surface can be prevented from being hurt in advance to achieve the improvement in the productivity of the film.
-
公开(公告)号：JP2000210960A
公开(公告)日：2000-08-02
申请号：JP1650999
申请日：1999-01-26
Applicant: TORAY INDUSTRIES
Inventor： NISHIDA TAKANORI , YAMAKAWA KATSUSHI , OKASHIRO HIDETOSHI
Abstract: PROBLEM TO BE SOLVED: To suppress the involution of air or the generation of wrinkles by optimizing various conditions especially in relation to the running speed of an endless belt in a casting system allowing negative pressure to act on a resin film by a suction means. SOLUTION: The resin film 3 emitted from the slit gap 2 of a cap 1 is cast on the endless belt 4 supported from the rear surface thereof by a support roll 6 to move while negative pressure is allowed to act on the resin film by a suction means. In this case, the negative pressure is regulated by the suction means 8 corresponding to the running speed of the endless belt.
-
-
-
-
-
-
-
-
-
Search Results
98
records
(took 0.025 seconds)
