-
公开(公告)号：JPH07285173A
公开(公告)日：1995-10-31
申请号：JP8160394
申请日：1994-04-20
Applicant: TORAY INDUSTRIES
Inventor： UEDA TOMOAKI , AOKI SEIZO , OSHIMA KATSUNORI
Abstract: PURPOSE:To enhance processing aptitude as an electric insulating film by specifying the thickness irregularity and elongation at break of a biaxially oriented polyethylene-2,6-naphthalate film in the longitudinal direction thereof. CONSTITUTION:A film must have thickness irregularity of 0.1 or less and elongation at break of 90% or more in the longitudinal direction thereof. Therefore, polyethylene naphthalate is usually extruded from an extruder at temp. of 280-320- deg.C after drying to be formed into a sheet and this sheet is cooled to 80 deg.C or lower to obtain an amorphous sheet. Next, the amorphous sheet is longitudinally oriented pref. by 1.2-2.5 times at 120-170 deg.C and subsequently laterally oriented by 2.5-5.0 times at 120-170 deg.C to form a biaxially oriented film which is, in turn, further oriented in orientation magnification of 0.5-3.5 times the first stage orientation magnification. As a whole, the longitudinal orientation magnification is set to 2-5 times. Subsequently, the oriented film is thermally fixed especially pref. at 240-255 deg.C and taken up while longitudinally slackened by 1-10% in a cooling zone.
-
公开(公告)号：JPH07272247A
公开(公告)日：1995-10-20
申请号：JP6502694
申请日：1994-04-01
Applicant: TORAY INDUSTRIES
Inventor： UEDA TOMOAKI , OSHIMA KATSUNORI , NAGAI ITSUO
Abstract: PURPOSE:To reduce size and weight, to improve electromagnetic transducing characteristics and to enable to cope with high density recording. CONSTITUTION:A nonmagnetic layer of a metal or metal oxide is formed on at least one side of a plastic film and a magnetic layer is formed on the nonmagnetic layer to obtain the objective magnetic recording medium. By this structure, high rigidity as well as lightness, flexibility and surface smoothness of the plastic film is ensured.
-
公开(公告)号：JPH07214732A
公开(公告)日：1995-08-15
申请号：JP1040694
申请日：1994-02-01
Applicant: TORAY INDUSTRIES , TORAY GOSEI FILM KK
Inventor： SEKI SHIGEMI , UEDA TOMOAKI , KUBO MIDORI
Abstract: PURPOSE:To obtain a composite film having excellent UV blocking properties, antistatic properties and close adhesiveness and also having easy adhesiveness by providing a coating layer based on a UV absorbable acrylic resin and a cationic polymer on the surface of a plastic film. CONSTITUTION:When a coating layer is formed on the surface of a plastic film, surface treatment or undercoat treatment is pref. applied because coating properties are improved and the close adhesiveness, water resistance or solvent resistance of the coating layer are improved. As surface treatment, corona discharge treatment, plasma treatment, alkali metal soln. treatment or high frequency sputtering etching treatment can be designated. As a UV absorbable acrylic resin, a copolymer resin of a reactive benzophenone compd. having UV absorbing capacity and an acrylic polymerizable unsaturated group is used.
-
公开(公告)号：JPH07171934A
公开(公告)日：1995-07-11
申请号：JP18012093
申请日：1993-07-21
Applicant: TORAY INDUSTRIES , TORAY GOSEI FILM KK
Inventor： SEKI SHIGEMI , UEDA TOMOAKI , YAMAOKA MIDORI
Abstract: PURPOSE:To provide the title cover material having both of antistaining properties and drip-proof properties, excellent in the lasting properties thereof and having long-term durability. CONSTITUTION:In a cover material for an agricultural house wherein an antistaining layer is provided on one surface of a fluoroplastic film and a drip- proof layer is provided on the other surface thereof, the antistaining layer is composed of a compsn. based on at least one selected from a polymeric adhesive and a cationic polymer (a) and an aq. resin and sulfonated polystyrene and/or a salt thereof (b).
-
公开(公告)号：JPH07125156A
公开(公告)日：1995-05-16
申请号：JP27697093
申请日：1993-11-05
Applicant: TORAY INDUSTRIES
Inventor： UEDA TAKASHI , AOKI SEIZO , UEDA TOMOAKI
Abstract: PURPOSE:To obtain a polypropylene film for a capacitor in which moist heat resistant life can be improved and which has excellent productivity without deteriorating other electric characteristics by forming a film formed at least on one side surface and having a specific thickness of water dispersible polyester polyurethane resin in such a manner that its elongation at breakage and tensile strength are specific values. CONSTITUTION:A polypropylene film for a capacitor comprises a film of 0.01-1mum formed on at least one side surface and made of water dispersible polyester polyurethane resin in such a manner that its tensile strength is 300kg/cm or more at 100% of its elongation at breakage. The elongation at breakage of the resin is preferably 50% or less, and when it exceeds 100%, its moist heat resistance is deteriorated, blocking further easily occurs, and releasability at the time of winding is deteriorated. Then, the tensile strength is preferably 450kg/cm or more in view of moist heat resistant lifetime, press adhesion preventive properties. If it is less than 300kg/cm , the moist heat resistant lifetime is insufficient, and the press adhesion preventive properties are deteriorated.
-
Patent Agency Ranking
公开(公告)号：JPH06322151A
公开(公告)日：1994-11-22
申请号：JP10808693
申请日：1993-05-10
Applicant: TORAY INDUSTRIES
Inventor： KIDA KENJI , MIYAJI SHINICHIRO , UEDA TOMOAKI
Abstract: PURPOSE:To obtain a mold release film capable of providing a green sheet, good in heat, water and solvent resistances and flatness and further peelability from the green sheet. CONSTITUTION:The biaxially oriented polyphenylene sulfide film contains a polyorganosiloxane compound in an amount of 1-10000ppm based on 100 pts.wt. polyphenylene sulfide.
-
公开(公告)号：JPH06305019A
公开(公告)日：1994-11-01
申请号：JP9610393
申请日：1993-04-22
Applicant: TORAY INDUSTRIES
Inventor： NOGUCHI YUKIO , KIDA KENJI , UEDA TOMOAKI
Abstract: PURPOSE:To obtain a homogeneous biaxially stretched polyphenylene sulfide film having excellent flatness, mechanical characteristics by specifying p- phenylene sulfide unit content and unmelted nucleus residue. CONSTITUTION:Polyphenylene sulfide is used mainly as an object of a poly-p- phenylene sulfide in such a manner that p-phenylene sulfide unit of 90mol% or more exist. This polyphenylene sulfide film needs 10 pieces/g or more of unmelted nucleus residue. The residue is obtained by observing substantially unstretched amorphous sheet under a transmission polarization microscope and counting nuclei of a size having one side of 50mum or more. The residue is controlled by a cylinder temperature, retention time and shearing speed of an extruder when it is pelletized and/or extrusion molded to an amorphous film. Thus, a biaxial stretched polyphenylene sulfide film having excellent flatness, mechanical characteristics is obtained.
-
公开(公告)号：JPH06136146A
公开(公告)日：1994-05-17
申请号：JP28312992
申请日：1992-10-21
Applicant: TORAY INDUSTRIES
Inventor： KIDA KENJI , NOGUCHI YUKIO , UEDA TOMOAKI
Abstract: PURPOSE:To obtain a biaxially oriented film excelling in handleability and electrical properties and having few pinholes inspite of being an ultra-thin film made of a crystalline thermoplastic resin composition containing a plurality of kinds of specified inert particles. CONSTITUTION:A biaxially oriented film made of a crystalline thermoplastic resin (e.g. polyphenylene sulfide) composition, wherein the composition contains two kinds of inert particles (e.g. calcium particles and silica particles) of different particle diameters satisfying the relationships: 0.15
-
公开(公告)号：JPH06107795A
公开(公告)日：1994-04-19
申请号：JP25949292
申请日：1992-09-29
Applicant: TORAY INDUSTRIES
Inventor： NOGUCHI YUKIO , KIDA KENJI , UEDA TOMOAKI
Abstract: PURPOSE:To provide the subject composition freed from such drawbacks for the films therefrom as low yield and low planarity resulting from being subject to breakage of biaxially oriented polyphenylene sulfide films produced by conventional method in film forming process such as biaxial orientation or heat setting. CONSTITUTION:The objective composition characterized by (1) p-phenylene sulfide unit accounts for >=90mol% of the total recurring units; (2) the amount extractable with acetone accounts for
-
公开(公告)号：JPH0691812A
公开(公告)日：1994-04-05
申请号：JP24482692
申请日：1992-09-14
Applicant: TORAY INDUSTRIES
Inventor： MIYAJI SHINICHIRO , KIDA KENJI , UEDA TOMOAKI
Abstract: PURPOSE:To provide a metal base circuit board excellent in the bonding strength with a metal plate while holding the excellent hygroscopic characteristic, high frequency characteristic or heat-resistance of PPS. CONSTITUTION:A layer (A) consisting of a sheet composed of a resin compsn. based on poly-p-phenylene sulfide and an electric circuit is laminated to a metal layer (C) through a layer (B) of a resin compsn. composed of copolymerized polyphenylene sulfide containing at least one or more kind of a copolymerizable unit other than a p-phenylene sulfide unit.
-
-
-
-
-
-
-
-
-
Search Results
178
records
(took 0.026 seconds)
