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公开(公告)号：JPH09278912A
公开(公告)日：1997-10-28
申请号：JP8927696
申请日：1996-04-11
Applicant: TORAY INDUSTRIES
Inventor： MIYAJI SHINICHIRO , NOGUCHI YUKIO , KINOSHITA SHUICHI
Abstract: PROBLEM TO BE SOLVED: To obtain a mold-releasing polyphenylene sulfide film for liquid crystal membranes which can improve the surface defects of stripe roughness occurring on the melt molding with excellent heat resistance by arranging a melt-kneading mixer between the filter and the T die. SOLUTION: This film has an average surface roughness of 0.005-0.03μm and the uneven stripes occurring on the film surface having >=0.3μm height from the film base face at a rate of . This polymer is melt-kneaded and filtered through a filter in a melt extruder and extruded out of a die into a sheet, and biaxially oriented to give the objective film. In this process a mixer which can melt-knead the polymer is inserted between the filtration process and the T die.
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公开(公告)号：JPH06306284A
公开(公告)日：1994-11-01
申请号：JP10118893
申请日：1993-04-27
Applicant: TORAY INDUSTRIES
Inventor： KIDA KENJI , NOGUCHI YUKIO , UEDA TOMOAKI
Abstract: PURPOSE:To provide a polyphenylene sulfide composition capable of simultaneously improving the slidability and abrasion resistance of molded products without deteriorating the excellent characteristics of polyphdnylene sulfide. CONSTITUTION:A polyphenyl sulfide composition comprises 100 pts.wt. of polyphenylene sulfide and 0.1-30 pts.wt. of polyphenylene naphthalate.
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公开(公告)号：JPH06305013A
公开(公告)日：1994-11-01
申请号：JP10118793
申请日：1993-04-27
Applicant: TORAY INDUSTRIES
Inventor： NOGUCHI YUKIO , KIDA KENJI , UEDA TOMOAKI
IPC: B29C48/305 , B29C55/02 , B29K81/00 , B29L7/00 , B29C47/14
Abstract: PURPOSE:To obtain a uniaxial stretching film having less thickness marks, stretching marks and a homogeneous biaxial stretching film having excellent thickness mark and flatness by melting polyphenylene sulfide, extruding it in a film state, and stretching it at a specific atmospheric temperature. CONSTITUTION:An amorphous polyphenylene sulfide film 11 is wound on preheating rolls 1, 2, 3 to be heated, and an upper surface of the film between the roll 3 and a heater 9 is insulated by an infrared heater 10. Subsequently, the film is stretched longitudinally between a stretching roll and a cooling roll 5 disposed in the heater 9 at an atmospheric temperature Ts to obtain a uniaxial stretching film 12. Then, after it is laterally stretched in a room in which hot blast is circulated by a tenter, it is constant-length heat treated to obtain a biaxial stretching film. In this case, the temperature Ts of the stretching section is so set as to satisfy Tg-20
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公开(公告)号：JPH05320380A
公开(公告)日：1993-12-03
申请号：JP15005092
申请日：1992-05-19
Applicant: TORAY INDUSTRIES
Inventor： NOGUCHI YUKIO , KIDA KENJI , UEDA TOMOAKI
Abstract: PURPOSE:To provide a biaxially oriented polyphenylene sulfide film improved in wear resistance while retaining its slippability and transparency without impairing the excellent characteristics inherent in polyphenylene sulfide film. CONSTITUTION:The biaxially oriented polyphenylene sulfide film 0.5%mum in turbidity containing 0.1-10wt.% of zinc oxide 0.005-1.0mum in the mean diameter in the film.
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公开(公告)号：JPH0565353A
公开(公告)日：1993-03-19
申请号：JP22621591
申请日：1991-09-05
Applicant: TORAY INDUSTRIES
Inventor： NOGUCHI YUKIO , YAMAOKA MIDORI , UEDA TOMOAKI
Abstract: PURPOSE:To improve the electrical insulating properties of the subject film by forming a film from poly-p-phenylene sulfide resin pellets contg. inert fine particles having a mean value and a relative standard deviation of the equivalent diameter of equal-area circle as calculated by a specific equation and a specified particle diameter ratio. CONSTITUTION:Inert fine particles, e.g. vaterite CaCO3, are dispersed in a liq. boiling at 180-290 deg.C, e.g. ethylene glycol, to give a slurry contg. the particles having a particle diameter ratio of 1.0-2.5, a relative standard deviation of the equivalent diameter of equal-area circle as calculated by equation I [wherein Di is an equivalent diameter (mum) of equal-area circle of particles; D is a mean value (mum) of the equivalent diameter calculated by equation II; and (n) is the number of particles] of 1.0 or lower, and a mean value of the equivalent diameter of 0.05-3.0mum. The slurry is mixed with a poly-p-phenylene sulfide powder and extruded on a vented extruder to give pellets contg. 0.01-2wt.% the particles, which are extruded into a film and biaxially oriented, thus giving the objective film.
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Patent Agency Ranking
公开(公告)号：JPS6264523A
公开(公告)日：1987-03-23
申请号：JP14288286
申请日：1986-06-20
Applicant: TORAY INDUSTRIES
Inventor： ASAKURA TOSHIYUKI , NOGUCHI YUKIO , KOBAYASHI HIROAKI
Abstract: PURPOSE:To obtain a biaxially oriented poly-p-phenylene sulfide film, which is thermally stable in dimensional change, mechanical characteristics, transparency and the like, by a method wherein poly-p-phenylene sulfide, which contains the required quantity or more of the specified repeating unit and has the specified melt viscosity, is molded into a sheet form and quenched and, after that, simultaneously biaxially oriented in the limited temperature range and finally thermoset at the specified temperature so as to set its density to the required value. CONSTITUTION:Poluy-p-phenylene sulfide, which contains 90% by mole or more of the repeating unit represented by the general formula and the melt viscosity of which at 300 deg.C and shearing speed of 200s is 100-600,000 poise, is melt-formed into a sheet form and quenched at a cooling speed of 5 deg.C/s or higher in order to obtain an amorphous film. In succession, the amorphous film is simultaneously biaxially oriented at 80-120 deg.C by the areal draw ratio of 400% or more. Further, the oriented film is thermoset at a temperature ranging from 180 deg.C to the melting point of the polymer in order to set the density of the film within the range of 1.330-1.400. The adopted thermosetting time varies from the unit of second to the unit of minute such as from about 1sec to the order of 10min.
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公开(公告)号：JPS5790018A
公开(公告)日：1982-06-04
申请号：JP16589680
申请日：1980-11-27
Applicant: TORAY INDUSTRIES
Inventor： ASAKURA TOSHIYUKI , KOBAYASHI HIROAKI , NOGUCHI YUKIO
Abstract: PURPOSE:The titled polymer having excellent stability to oxidation, ultraviolet rays and melting and an excellent effect of preventing formation of corrosive gases, having electron-attracting groups and further containing aromatic residues chemically bonded to the phenylene sulfide chain. CONSTITUTION:A stabilized polyphenylene sulfide having, in the main chain, chain segments of the formula, wherein n is an integer >=20, and electron-attracting groups selected from the group consisting of -SO2-, -CO-, -NO2, -SO3R and -COOR, in which R is H, a lower hydrocarbon group, an aromatic hydrocarbon group or an alkali metal and further containing 0.05-10mol% (per phenyl sulfide unit) aromatic residues chemically bonded to the phenylene sulfide chain of the above-described formula. This polymer has an improved resistance to ultraviolet rays and a prolonged outdoor service life when molded. It is possible to carry out viscosity reduction in the molten state, to reduce formation of volatile low- MW matter including sulfur-containing inorganic gases and to reduce the gel fraction of a molding.
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公开(公告)号：JPS5538613A
公开(公告)日：1980-03-18
申请号：JP10888478
申请日：1978-09-05
Applicant: TORAY INDUSTRIES
Inventor： ASAKURA TOSHIYUKI , KOBAYASHI HIROAKI , NOGUCHI YUKIO
Abstract: PURPOSE:To maintain mechanical performance even under a high temperature by reducing variation in size due to an change in envirotment such as a temperature and humidity, by using a specific poly-P-phenylene-sulfide film as a base film. CONSTITUTION:As a base film, a biaxial-orientation poly-P-phenylene-sulfide film is used which contains more than 90mol% of the repetitive unit of a formula, is more than 250Kg/mm in modulus of more than unidirectional elasticity at 20 deg.C, and is between -2X10 and 2X10 mm/(mm.C) in thermal expansivity in a range from 20 to 150 deg.C. On this film, a magnetic layer is formed by coating, plating, or the like. Here, productivity improves because the magnetic layer can be formed under a higher temperature than before. Further, the formation of the magnetic layer can be performed in an thermally-severe atmosphere of vapor-deposition, sputtering, etc.
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公开(公告)号：JP2000218740A
公开(公告)日：2000-08-08
申请号：JP2687899
申请日：1999-02-04
Applicant: TORAY INDUSTRIES
Inventor： WATANABE YASUTOSHI , NOGUCHI YUKIO , KUROME TAIICHI
Abstract: PROBLEM TO BE SOLVED: To improve voltage resistance, which has been a problem for a PPS film excellent in capacitor properties such as heat resistance and dielectric properties, and self-restoration properties (self-healing properties) without deteriorating the processability of a capacitor. SOLUTION: A polyphenylene sulfide laminated film in which a polymer film layer comprising an amorphous polyester resin composition is laminated at least on one side of a polyphenylene sulfide film, and the heat shrinkage factor at 230 deg.C of both shafts is at least -1-10% and a capacitor using the laminated film.
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公开(公告)号：JPH07117179A
公开(公告)日：1995-05-09
申请号：JP26899693
申请日：1993-10-27
Applicant: TORAY INDUSTRIES
Inventor： AOKI SEIZO , UEDA TOMOAKI , NOGUCHI YUKIO
Abstract: PURPOSE:To improve durability against moist heat, resistance to pressure and self-healing property without deteriorating various electric characteristics and improve laminating property upon making a chip type capacitor by a method wherein a film is formed of water-soluble and/or water-dispersive polyester-based polyurethane resin. CONSTITUTION:A polyphenylene sulfide film is formed of a film, formed at least one side thereof. The film is constituted of a water-soluble and/or water- dispersive polyester-based polyurethane resin. The breaking extension of the water-soluble and/or water-dispersive polyester-based urethane resin is preferable to be 100% or less. A metallized polyphenylene sulfide laminated film, in which aluminium is deposited on at least one surface of the polyphenylene sulfide laminated film, is wound or laminated.
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