Patent application number | Description | Published |
20080213512 | Method for manufacturing cellulose ester film, and cellulose ester film, optical film, polarizing plate and liquid crystal display device using the same - A method for manufacturing a cellulose ester film comprising the steps of 1) mixing a cellulose ester exhibiting a water content of not greater than 3.0 weight %, at least one plasticizer selected from the groups A and B in an amount of one to thirty weight % of the cellulose ester, and at least one additive selected from the groups of C and D in an amount of 0.01 to 5 weight % of the cellulose ester to obtain a mixture, group A: ester plasticizers formed from a polyhydric alcohol and a monohydric carboxylic acid; group B: ester plasticizers formed from a polyhydric carboxylic acid and a monohydric alcohol; group C: hindered phenol anti-oxidants; group D: hindered amine light stabilizers, 2) heating to melt the mixture at a temperature (Tm) of between 150 and 300° C., and 3) forming a cellulose ester film with a melt casting method employing the melted mixture. | 09-04-2008 |
20090074989 | Cellulose Ester Film, Manufacturing Method Thereof, Optical Film, Polarizing Plate and Liquid Crystal Display - An objective is to provide a cellulose ester film which can reduce a manufacturing burden and a facility burden caused by drying and recovering of a solvent used in the production process, a manufacturing method of the cellulose ester film and an optical film, and to specifically provide a polarizing plate employing the optical film as an excellent polarizing plate protective film exhibiting reduced fluctuation of retardation property in the width direction and a liquid crystal display employing the polarizing plate. Also disclosed is a cellulose ester film containing at least one compound having a phenol structure and a phosphite ester structure in a molecule. | 03-19-2009 |
20090081388 | Optical Cellulose Ester Film and Manufacturing Method Thereof, and Polarizing Plate and Liquid Crystal Display Device - An optical cellulose ester film comprising a cellulose ester (A); at least one ester based plasticizer (B) selected from ester based plasticizers composed of a polyhydric alcohol and a univalent carboxylic acid, or ester based plasticizers composed of a polyvalent carboxylic acid and a monohydric alcohol; at least one stabilizer (C) selected from the group consisting of a phenol based stabilizer, a hindered amine based stabilizer, or a phosphorous based stabilizer; and a hydrogen bonding solvent (D). | 03-26-2009 |
20090155495 | PROCESS FOR PRODUCING CELLULOSE ACYLATE FILM, CELLULOSE ACYLATE FILM, POLARIZER, AND LIQUID-CRYSTAL DISPLAY - A process for cellulose acylate film production which is sufficiently effective in reducing viscosity and in reducing moisture permeability. The cellulose acylate film does not suffer bleeding, i.e., the phenomenon in which a component separates out or volatilizes from the cellulose acylate film, has high flatness, is inhibited from having streak unevenness, and has high evenness. Even through long-term storage, the film does not suffer film deformation failures such as ridge failures or protrusion failures. This process for cellulose acylate film production comprises forming a cellulose acylate film by the melt casting method, and is characterized in that the cellulose acylate film contains at least one compound represented by the following general formula (1) and that the cellulose acylate film extruded from a casting dye in the film formation by melt casting is pressed between a touch roll having an elastically deformable surface and a cooling roll to produce the target film. | 06-18-2009 |
20090185112 | POLARIZING PLATE PROTECTIVE FILM AND METHOD FOR MANUFACTURING THE SAME, POLARIZING PLATE AND METHOD FOR MANUFACTURING THE SAME, AND LIQUID CRYSTAL DISPLAY DEVICE - A protective film for polarizers which comprises a cellulose ester film and which, even when stored for long, suffers no film deformation failures such as ridging and protrusion failures; a process for producing the protective film; a polarizer; a process for producing the polarizer; and a liquid-crystal display employing the polarizer. The process for producing a protective film for polarizers is characterized by forming a melt comprising a cellulose ester and at least one member selected among compounds respectively represented by the following general formulae (1) to (3) into a continuous cellulose ester film by melt casting and winding the film into a roll. | 07-23-2009 |
20090246416 | OPTICAL FILM, METHOD OF MANUFACTURING THE SAME, POLARIZING PLATE, AND LIQUID CRYSTAL DISPLAY DEVICE - In the present invention, provided is an optical film exhibiting less generation of horseback failure, winding core transfer and wrinkles on a film when starting winding, and also provided is a manufacturing method thereof, further together with a polarizing plate and a liquid crystal display device exhibiting high contrast. Also disclosed is an optical film possessing a cellulose ester and a UV absorbent represented by the following Formula (1): | 10-01-2009 |
20090306361 | PROCESS FOR PRODUCING CELLULOSE ESTER FILM, CELLULOSE ESTER FILM, POLARIZATION PLATE AND DISPLAY UNIT - A process for producing a cellulose ester film that is produced by a melt casting method using no solvent at film formation, and that attains reduction of bright spot foreign matter, excelling in planarity, and that attains reduction of staining, excelling in dimensional stability. It is also intended to provide such a cellulose ester film, a polarizing plate and a liquid crystal display unit. There is provided a process for producing a cellulose ester film, characterized by forming into a film a material containing a cellulose ester and an ester compound of 1 to 7.5 distribution coefficient obtained by condensation of a polyhydric alcohol and an organic acid of the general formula: (1) according to a melt casting method. | 12-10-2009 |
20100103352 | OPTICAL FILM, POLARIZING PLATE, LIQUID CRYSTAL DISPLAY AND ULTRAVIOLET ABSORBING POLYMER - Disclosed is an optical film which is characterized by containing an ultraviolet absorbing polymer which is derived from at least two monomers, namely an ethylenically unsaturated monomer having a partial structure represented by Formula (A) below in a molecule, and a monomer represented by Formula (B) below: | 04-29-2010 |
20100104775 | ULTRAVIOLET ABSORBING POLYMER, CELLULOSE ESTER OPTICAL FILM, METHOD OF PRODUCING CELLULOSE ESTER OPTICAL FILM, POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY - Disclosed is an ultraviolet absorbing polymer which is characterized by being derived from an ethylenically unsaturated monomer having a partial structure represented by Formula (A) below in a molecule, and a monomer represented by Formula (B) below: | 04-29-2010 |
20100151156 | METHOD OF PRODUCING CELLULOSE ESTER FILM, CELLULOSE ESTER FILM, POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY - Disclosed is a method for producing a cellulose ester film wherein a film-forming material containing the following components A-C is heated and melted, and a cellulose ester film is formed therefrom by melt-casting. A: a cellulose resin, B: an ester compound obtained by condensing an organic acid represented by Formula (1) and a polyalcohol, and C: an aliphatic polyester or an aliphatic-aromatic copolymer. | 06-17-2010 |
20100164141 | Cellulose Ester Film, Its Manufacturing Method, Polarizing Plate, and Liquid Crystal Display - Disclosed is a cellulose ester film comprising cellulose ester and a phosphonite compound. | 07-01-2010 |
20100236713 | FILM FOR DISPLAY, POLARIZING PLATE AND MANUFACTURING METHOD THEREOF, AND LIQUID CRYSTAL DISPLAY - A film for a display comprising a cellulose ester and a compound represented by Formula (I) or (Ia). | 09-23-2010 |
20120298007 | PROCESS FOR PRODUCING CELLULOSE ESTER FILM, CELLULOSE ESTER FILM, POLARIZATION PLATE AND DISPLAY UNIT - A process for producing a cellulose ester film that is produced by a melt casting method using no solvent at film formation, and that attains reduction of bright spot foreign matter, excelling in planarity, and that attains reduction of staining, excelling in dimensional stability. It is also intended to provide such a cellulose ester film, a polarizing plate and a liquid crystal display unit. There is provided a process for producing a cellulose ester film, characterized by forming into a film a material containing a cellulose ester and an ester compound of 1 to 7.5 distribution coefficient obtained by condensation of a polyhydric alcohol and an organic acid of the general formula: (1) according to a melt casting method. | 11-29-2012 |
20150072159 | CONDUCTIVE FILM AND ORGANIC ELECTROLUMINESCENT ELEMENT - Provided is a conductive film with excellent transparency, conductivity, and film strength and in which there is minimal degradation of the transparency, conductivity, and film strength even in a high temperature and high humidity environment. A conductive film is provided with a base material and an organic compound layer that is conductive and is formed on top of the base material. The conductive film is characterized by the organic compound layer including a conductive polymer compound containing a cationic π conjugated system conductive polymer and a polyanion, and a polyolefin copolymer. | 03-12-2015 |