Polyvinyl alcohol-starch film
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United States of America Patent
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-
Apr 21, 1992
Grant Date -
N/A
app pub date -
Dec 4, 1989
filing date -
Dec 5, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A polyvinyl alcohol-starch film which is prepared from a composition comprising a polyvinyl alcohol having a degree of hydrolysis of at least 93% by mole and a starch, the film being at least uniaxially stretched. The film of the present invention is excellent in water resistance, and moreover in degradable property.
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