Aliphatic polyester compositions, film made thereof and laminates thereof
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United States of America Patent
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Feb 18, 2003
Grant Date -
May 30, 2002
app pub date -
Sep 25, 2001
filing date -
Sep 28, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Disclosed is a composition provided with biodegradable property and transparency which is excellent in heat sealing property at low temperatures, peelability and adhesiveness to substrate as well as a film or laminate of the composition. The composition comprises as indispensable components thereof 27-70% by weight of polylactic acid, 70-27% by weight of an aliphatic polyester, and 1-20% by weight of a tackifier selected from the group consisting of: an aliphatic cyclic hydrocarbon resin, a metal salt of a rosin ester, and a rosin ester having an acid number of 10 or less.
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