Cellulose acylate film, protective film for polarizing plate, polarizing plate, and liquid crystal display device
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United States of America Patent
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Dec 30, 2014
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N/A
app pub date -
Nov 13, 2012
filing date -
Nov 14, 2011
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Abstract
There is provided a cellulose acylate film, containing a hindered amin-based compound, wherein the hindered amine-based compound is contained in an amount of 0.001% by mass to 5% by mass based on cellulose acylate, a minimum value of Knoop hardness is 170 N/mm2 to 220 N/mm2, and the Knoop hardness is measured several times by a Knoop indenter, the Knoop indenter is rotated by a given angle in each measurement, and a rotation axis of the Knoop indenter is orthogonal to an upper surface of the cellulose acylate film.
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