| TEIJIN DUPONT FILMS JAPAN LIMITED Patent applications |
| Patent application number | Title | Published |
|---|
| 20120040208 | BIAXIALLY ORIENTED FILM - An object of the present invention is to provide a thin biaxially oriented film excellent in dimensional stability against humidity change, as well as a magnetic recording medium and a film capacitor using the same. | 02-16-2012 |
| 20120021197 | LAMINATED POLYESTER FILM FOR SOLAR CELL BACKSHEETS - In a laminated polyester film for solar cell backsheets, which includes a surface layer (A) and a substrate layer (B), the surface layer (A) is made of a polyester composition including 10 to 30 wt % of rutile-type titanium dioxide particles and 70 to 90 wt % of a polyester, the substrate layer (B) is made of a polyester composition including 0.1 to 4 wt % of rutile-type titanium dioxide particles and 96 to 99.9 wt % of a polyester, the substrate layer (B) has a thickness of 70% to 97% of the total film thickness, the weight average molecular weight and COOH end group concentration of polyester in the laminated film are 47,000 to 65,000 and 6 to 25 eq/ton, respectively, and the average content of rutile-type titanium dioxide particles in all layers of the laminated film is 3 to 8 wt %. As a result, a laminated polyester film for solar cell backsheets, which has excellent weatherability and hydrolysis resistance and is capable of maintaining strength over a long period of time, is provided. | 01-26-2012 |
| 20110229738 | BIAXIALLY ORIENTED POLYESTER FILM AND MAGNETIC RECORDING TAPE - A biaxially oriented polyester film which has a Young's modulus (YMD) in the film machine direction (YMD) of 6.5 GPa or more and a Young's modulus in the width direction (YTD) of 8.2 to 9.8 GPa and is used as a base film for magnetic recording tapes of linear recording system, and a magnetic recording tape of linear recording system comprising the same as a base film. | 09-22-2011 |
| 20110001720 | CONDUCTIVE FILM - A conductive film which is excellent in moist heat resistance, conductivity, transparency and coating film strength. | 01-06-2011 |
| 20100326515 | BASE MATERIAL FOR SOLAR CELL - It is to provide a base material for a solar cell, constituted by a stretched film of a composition containing a thermoplastic crystalline resin and inert particles, in which the base material for a solar cell has, on at least one side, a surface that has a center plane average surface roughness Ra of 30 to 500 nm and an average interval between local crests S on the surface of 40 to 5,000 nm, by which the base material for a solar cell provided has a surface capable of providing a light trapping effect and is useful for producing a solar cell exhibiting an excellent photoelectric conversion efficiency upon using as a base material of a thin film solar cell. | 12-30-2010 |
| 20100209722 | BIAXIALLY ORIENTED FILM FOR ELECTRIC INSULATION - A biaxially oriented polyester film which has high dielectric strength at a temperature range from room temperature to a high temperature, maintains high dielectric strength even after it is heated for a long time and is suitable for electric insulation application. | 08-19-2010 |
| 20100173140 | BIAXIALLY ORIENTED POLYESTER FILM FOR AUTOMOBILE DRIVING MOTORS, AND ELECTRICALLY INSULATING MEMBER THEREFROM - An object of the invention is to provide a biaxially oriented polyester film for automobile driving motors, which has, in addition to high-temperature dimensional stability, high hydrolysis resistance required for an insulating film of an automobile driving motor, and also exhibits excellent delamination characteristics. | 07-08-2010 |
| 20100167092 | BIAXIALLY ORIENTED POLYESTER FILM AND MAGNETIC RECORDING TAPE - A biaxially oriented polyester film which has a Young's modulus (YMD) in the film machine direction (YMD) of 6.5 GPa or more and a Young's modulus in the width direction (YTD) of 8.2 to 9.8 GPa and is used as a base film for magnetic recording tapes of linear recording system, and a magnetic recording tape of linear recording system comprising the same as a base film. | 07-01-2010 |
| 20100167012 | MULTI-LAYER FILM FOR USE AS A SOLAR CELL SUBSTRATE - A multi-layer film for use as a solar cell substrate, consisting of a supporting layer (s) and a scattering layer (s), wherein
| 07-01-2010 |
| 20100104919 | REINFORCING FILM FOR THE ELECTROLYTE MEMBRANE OF A POLYMER ELECTROLYTE FUEL CELL - A biaxially oriented film for reinforcing the electrolyte membrane of a polymer electrolyte fuel cell, wherein the film includes (i) a layer mainly composed of polyethylene naphthalene dicarboxylate and has (ii) a Young's modulus in at least one direction of not less than 9,000 MPa and (iii) a thickness of 15 to 150 μm. The biaxially oriented film has a satisfactory reinforcing effect as a reinforcing member for a polymer electrolyte membrane at the operation temperature of a polymer electrolyte fuel cell though it is a thin film. | 04-29-2010 |
| 20100062239 | BIAXIALLY ORIENTED FILM FOR ELECTRICAL INSULATION, FILM CAPACITOR CONSTITUTING MEMBER FORMED OF THE SAME, AND FILM CAPACITOR INCLUDING SAME - An object of the present invention is to provide a biaxially oriented film for electrical insulation that has excellent withstand voltage characteristics over a temperature range from room temperature to higher temperatures. The film excels in withstand voltage characteristics and processability by inclusion of fullerene in a crystalline thermoplastic resin film. | 03-11-2010 |
| 20100006150 | DYE-SENSITIZED SOLAR CELL, AND ELECTRODE AND LAMINATED FILM FOR THE SAME - A laminated film comprising a porous semiconductor layer, a transparent conductive layer and a transparent plastic film, wherein
| 01-14-2010 |
| 20090050203 | DYE-SENSITIZED PHOTOELECTRIC CONVERSION DEVICE - There is provided a dye-sensitized photoelectric conversion element comprising a porous photoelectrode layer which comprises dye-sensitized porous semiconductor particles, a charge transport layer and an opposite electrode layer in this order, the charge transport layer comprising a solid mixture comprising 0.1 to 50 wt % of carbon material and 50 to 99.9 wt % of ionic liquid based on the total weight thereof, the charge transport layer comprising at most 1 wt % of iodine and at most 0.9 wt % of p-type conductive polymer or comprising neither iodine nor the p-type conductive polymer. | 02-26-2009 |
| 20090035544 | Laminated film for reflection plate - A laminated film for a reflecting plate is provided that comprises a layer A and a layer B, the layer A comprising a polyester that comprises substantially no antimony element and preferably comprises 1 to 25 wt % of inert particles having an average particle diameter of 0.3 to 3.0 μm and the layer B being in contact with the layer A and comprising a polyester which preferably comprises 31 to 80 wt % of inert particles having an average particle diameter of 0.3 to 3.0 μm. This laminated film has a practically satisfactory capability of reflecting visible light, can be produced stably even if inert particles are added in high concentration, hardly has streak-like defects, and can be suitably used as a substrate for a reflecting plate for a liquid crystal display or an internally illuminating electrical billboard. | 02-05-2009 |
| 20090034235 | LAMINATED FILM - A white laminated film which has practically sufficient reflectivity at a visible range, can be formed stably, is free from deterioration (yellowing) by ultraviolet radiation, rarely deforms by heat and can be advantageously used as a reflector substrate for liquid crystal displays and internal illumination type electrically spectacular signs, is provided. The laminated film includes a first layer of a composition which includes 31 to 60 wt % of inert particles having an average particle diameter of 0.3 to 3.0 μm and 40 to 69 wt % of a polyester consisting of 1 to 100 mol % of naphthalenedicarboxylic acid and 0 to 99 mol % of terephthalic acid as a dicarboxylic acid component and ethylene glycol as a diol component, and a layer B of a composition which includes 0 to 30 wt % of inert particles having an average particle diameter of 0.3 to 3.0 μm and 70 to 100 wt % of a polyester consisting of 3 to 20 mol % of naphthalenedicarboxylic acid and 80 to 97 mol % of terephthalic acid as a dicarboxylic acid component and ethylene glycol as a diol component and which is in direct contact with the first layer. | 02-05-2009 |
