Cellulose acylate film, manufacturing method of cellulose acylate film, laminate, polarizing plate, and liquid crystal display device
The present invention provides a cellulose acylate film, containing: an organic acid satisfying requirements of a to c, in which a film thickness of the cellulose acylate film is greater than or equal to 3 μm, and an average concentration of the organic acid in a region from one surface of the cellu...
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| creator | Tamada, Takashi Iijima, Koji Ichihara, Nobuhiko |
| description | The present invention provides a cellulose acylate film, containing: an organic acid satisfying requirements of a to c, in which a film thickness of the cellulose acylate film is greater than or equal to 3 μm, and an average concentration of the organic acid in a region from one surface of the cellulose acylate film to a depth of 0 to 0.2 μm is lower than an average concentration of the organic acid in a residual region other than the region: a: having a structure in which polyhydric alcohol and a polyvalent carboxylic acid are bonded by forming an ester bond; b: the total number of molecules of polyhydric alcohol and a monovalent or more carboxylic acid forming the organic acid being greater than or equal to 3; and c: having at least one non-substituted carboxyl group derived from a polyvalent carboxylic acid. |
| format | Patent |
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| subjects | AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING FREQUENCY-CHANGING GENERAL PROCESSES OF COMPOUNDING LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM METALLURGY NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICAL LOGIC ELEMENTS OPTICS ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING-UP |
| title | Cellulose acylate film, manufacturing method of cellulose acylate film, laminate, polarizing plate, and liquid crystal display device |
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