Water-soluble packaging film
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United States of America Patent
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Jan 16, 2018
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N/A
app pub date -
Aug 27, 2015
filing date -
Sep 1, 2014
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Abstract
The present invention provides a water-soluble packaging film which is capable of packaging chemicals while maintaining appropriate flexibility without changes in the appearance or offensive odors over a long period of time, which takes much less time to dissolve in water, and which can achieve excellent water solubility, excellent visibility, and excellent chemical resistance. The present invention relates to a water-soluble packaging film containing: polyvinyl alcohol; a plasticizer; and an alkali metal, the water-soluble packaging film containing 3 to 15 parts by weight of the plasticizer based on 100 parts by weight of the polyvinyl alcohol, the water-soluble packaging film containing 0.3 to 5% by weight of the alkali metal based on 100% by weight of the water-soluble packaging film.
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