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公开(公告)号：JPH1120004A
公开(公告)日：1999-01-26
申请号：JP18744997
申请日：1997-06-27
Applicant: TORAY INDUSTRIES
Inventor： OKASHIRO HIDETOSHI , TOYODA KATSUYA , OKUBO KENICHI
IPC: B29C47/88 , B29K101/12 , B29L7/00
Abstract: PROBLEM TO BE SOLVED: To efficiently obtain a sheet at high speed without impairing quality by a method wherein the position of a blade-like electrostatic applying electrode to a cooling rotator is adjusted biaxially and, at the same time, the angle between the normal direction of the cooling rotator and the blade-like electrostatic applying electrode is adjusted. SOLUTION: A blade-like electrostatic applying electrode 4 is provided in the neighborhood of the landing point 8 of a thermoplastic resin sheet to a cooling rotator 2 so as to bring the thermoplastic resin sheet 3 into close contact with the cooling rotator 2. Both the end parts of the blade-like electrostatic applying electrode 4 are covered with insulating members 5, the end part of each of which is supported with a holding part 6. The holding part 6 is made slidable on a fixed stand 13 and horizontally adjusted with a bolt 10 under the condition that a stay 11 cats as a fulcrum and vertically adjusted with the hold 12. Further, with the rotating devices 14 at both the end parts of the electrostatic applying electrode 4, the angle between the normal direction of the cooling rotator 2 and the blade-like electrostatic applying electrode 4 is preperly adjusted. As a result, the applying electrode can be easily and accurately adjusted to an optimum position.
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公开(公告)号：JPH10323881A
公开(公告)日：1998-12-08
申请号：JP15449097
申请日：1997-05-27
Applicant: TORAY INDUSTRIES
Inventor： TOYODA KATSUYA , OKUBO KENICHI , OKASHIRO HIDETOSHI
Abstract: PROBLEM TO BE SOLVED: To form a thermoplastic resin sheet of superior thickness uniformity, and scarcely having surface defects at high speed. SOLUTION: In a method for forming a sheet by extruding molten thermoplastic resin in the sheet shape from a mouthpiece and bonding and solidifying the resin on a cooling drum by the electrostatic applying method, a conductive tape having a rectangular section and the uniform shape in the longitudinal direction and the relation of thickness (X) and width (Y) satisfies the formula of 50
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公开(公告)号：JPH10272688A
公开(公告)日：1998-10-13
申请号：JP9661597
申请日：1997-03-31
Applicant: TORAY INDUSTRIES
Inventor： SUMIYA TAKASHI , HIRAOKA TOSHIHIKO , OKUBO KENICHI
Abstract: PROBLEM TO BE SOLVED: To provide a film which has high sensitivity and is suitable for thermal stencil printing raw paper with little curl. SOLUTION: The film for thermal stencil printing raw paper consists of a blend body which is obtained by at least mixing resin B being polyester-based resin with resin A being the same. Crystallization temperature of resin B is higher than crystallization temperature of resin A by >=3 deg.C. Also, the number average molecular weight of resin B is smaller than the number average molecular weight of resin A by
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公开(公告)号：JPH10272678A
公开(公告)日：1998-10-13
申请号：JP9661697
申请日：1997-03-31
Applicant: TORAY INDUSTRIES
Inventor： OKUBO KENICHI , TOYODA KATSUYA , OKASHIRO HIDETOSHI
IPC: C08J5/18 , B29C47/88 , B29C55/12 , B29K67/00 , B29L7/00 , B32B1/02 , B32B15/08 , B32B15/09 , B32B27/36 , C08L67/02 , H01G4/18
Abstract: PROBLEM TO BE SOLVED: To satisfy an electrical insulating properties as an electrical material, suppress the elution of metal as the inner lining material of a packaging material and of a filling vessel for drinking water, and suppress the occurrence of defect such as pining holes by a method wherein the unevenness of a longitudinal thickness is set to be a specified value, the surface haze of a film is set to be a specified value, and its melt specific resistance is set to be within a specified range. SOLUTION: The unevenness of a longitudinal thickness must be below 20%. If its unevenness exceeds 20%, the unevenness of an insulating properties and poor slitting at working are caused when employed as an electrical material and poor slitting at working is caused as a packaging material and the inner lining material of a filling vessel and poor bonding and separation are caused at the lamination to a metal can as the inner lining material of the filling vessel. The surface haze of a film should be lower than 1.5%. If it is 1.5% or above, the lowering of the adhesion between the metal can as the filling vessel and the film develops and, in addition, the lowering of its shook resistance and its insulating properties develops also. The melt specific resistance of the film must be within the range of 5×10 -2×10 ω.cm. If its melt specific resistance is outside of the above-mentioned range, elution of metal and poor bonding to a cooling rotary body occur.
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35.发明专利
公开(公告)号：JPH09169859A
公开(公告)日：1997-06-30
申请号：JP34922595
申请日：1995-12-19
Applicant: TORAY INDUSTRIES
Inventor： OKUBO KENICHI , TSUKUDA AKIMITSU , ITO NOBUAKI
Abstract: PROBLEM TO BE SOLVED: To provide a base film which realizes a magnetic recording medium, especially a high-density magnetic recording medium, reduced in dropout and having good durability and high elasticity and to provide a process for producing the same. SOLUTION: This film is produced from an organic polymer and satisfies the following requirements: the total concentration of metallic elements of groups Vb, VIb, VIIb, VIII, Ib and IIb in the periodic table is 100ppm or below, and the number A of protrusions (per unit mm) with a height of P(nm) present on at least either surface of the base film satisfies the following relationships: A =50, A 100, and A 200.
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Patent Agency Ranking
公开(公告)号：JPH0977885A
公开(公告)日：1997-03-25
申请号：JP23674395
申请日：1995-09-14
Applicant: TORAY INDUSTRIES
Inventor： OKUBO KENICHI , TSUKUDA AKIMITSU , ITO NOBUAKI
Abstract: PROBLEM TO BE SOLVED: To obtain an excellent film having no defect, consisting of an organic polymeric material, less in drop out and suitable for the use of a data storage. SOLUTION: This film consisting of an organic polymeric material has =8,800MPa and the film consists mainly of an aromatic polyamide or an aromatic polyimide containing, e.g. repeating units of formula II and/or formula III.
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公开(公告)号：JPH0971669A
公开(公告)日：1997-03-18
申请号：JP15558096
申请日：1996-06-17
Applicant: TORAY INDUSTRIES
Inventor： CHIKUGI TOSHIHIRO , OKUBO KENICHI , ITO NOBUAKI
IPC: C08J5/18 , B29C31/00 , B29D7/01 , B29K67/00 , C08G69/00 , C08G69/32 , C08G73/10 , G11B5/73 , G11B5/704
Abstract: PROBLEM TO BE SOLVED: To obtain the subject film consisting of a specific organic polymer body, showing a prescribed curvature, regulating variations in its dimensional change accompanying to a change with time caused by its moisture absorption, having a stable output characteristic and suitable for a magnetic recording medium. SOLUTION: This film consists of an organic polymer body (suitably an aromatic polyamide or polyimide, e.g. having a repeating unit of the formula) having >=1wt.% equilibrium moisture content H (at 20 deg.C, 75%RH), shows
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公开(公告)号：JPH08193138A
公开(公告)日：1996-07-30
申请号：JP648995
申请日：1995-01-19
Applicant: TORAY INDUSTRIES
Inventor： OKUBO KENICHI , OKAMURA YUJI
IPC: B05D7/04 , B05D7/24 , B29C55/12 , B29K67/00 , B29L9/00 , B32B27/16 , B32B27/36 , C08J5/18 , C08J7/00 , G11B5/73 , G11B5/733 , G11B5/704
Abstract: PURPOSE: To obtain a polyester film used for a digital video tape, excellent in adhesion to a magnetic layer and having good traveling characteristics and a high modulus of elasticity. CONSTITUTION: A film for a magnetic recording medium, which consists mainly of a polyester and has Young's moduli in the longitudinal and transverse directions, respectively of at least 400kg/mm and at least 800kg/mm , a centerline surface roughness RaA on one side (A side) of 5-30nm and a centerline surface roughness RaB on the other side (B side) of at most 10nm and of which at least B side has an angle of contact with water of at most 70 deg..
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39.发明专利
公开(公告)号：JPH06286089A
公开(公告)日：1994-10-11
申请号：JP10368493
申请日：1993-04-07
Applicant: TORAY INDUSTRIES
Inventor： OKAMURA YUJI , OKUBO KENICHI , HARADA SUNAO
IPC: B29C55/12 , B29K67/00 , B29L9/00 , B32B27/36 , C08J7/04 , C08L67/03 , G11B5/73 , G11B5/733 , G11B5/704
Abstract: PURPOSE:To perform higher density recording by utilizing high picture quality of a metal thin film magnetic recording medium and high strength, high heat resistant characteristics of fundamental characteristics of polyethylene-2,6- naphthalate. CONSTITUTION:A biaxially oriented composite film has a layer A made of polyethylene-2,6-naphthalate containing germanium compound and magnesium compound, and a layer B made of polyethylene-2,6-naphthalate containing inactive solid fine particles and laminated on the layer A. The layer A is covered with a coating film in which a discontinuous film or fine particles having a mean particle size of 3nm or more or both exist in such a manner that its surface roughness is 5nm or less. The layer B is formed of polyethylene-2,6- naphthalate containing 0.001-1wt.% of particles having mean particle size of 0.1-0.5mum and a biaxially oriented composite polyethylene naphthalate film for a metal thin film magnetic recording medium has a surface having surface roughness of 25nm or less.
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公开(公告)号：JPH11156920A
公开(公告)日：1999-06-15
申请号：JP34218197
申请日：1997-11-27
Applicant: TORAY INDUSTRIES
Inventor： ENDO YOSHIKAZU , OKUBO KENICHI , OKASHIRO HIDETOSHI
Abstract: PROBLEM TO BE SOLVED: To stabilize film formation while a life of a filter is remarkably prolonged by using a metal powder sintered filter wherein a sieve opening of the filter is successively decreased in the order from the initial filtration process, and in the last filtration process, a sieve opening larger than that in the preceeding process is provided. SOLUTION: Polyester resin is extruded by melting with an extruding machine, and the molten resin is successively filtered with a filter consisting of metal powder sintered compact of a large sive opening on the first stage, a filter consisting of metal fiber sintered compact wherein the sieve opening is the minimum and filter precision is 10 μm or under on the second stage, and a filter consisting of the metal powder sintered compact of a large sieve opening lastly. For the filter in this case, molten resin from, for example, the extruding machine 1 is filtered by using three or more kinds of filters 2, 3, 4. The filtered molten resin is discharged in a sheet state from a mouthpiece. A resin sheet is solidified by cooling with a cooling rotor 12 to become a polyester resin sheet 6.
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