POLYVINYL ALCOHOL FILM AND POLARIZING FILM AND POLARIZING PLATE USING THE SAME
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United States of America Patent
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app pub date -
May 26, 2011
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Dec 28, 2004
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Abandoned
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Abstract
The present invention provides a polyvinyl alcohol film which has a width of 3 m or more, an in-plane retardation value of 30 nm or less and a fluctuation of in-plane retardation value of 15 nm or less.
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