BIODEGRADABLE POLYESTER RESIN, PREPARATION METHOD THEREFOR, AND BIODEGRADABLE POLYESTER FILM COMPRISING SAME
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United States of America
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Issued Date -
Nov 21, 2024
app pub date -
Oct 21, 2022
filing date -
Oct 21, 2022
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Abstract
An embodiment relates to a biodegradable polyester resin, a preparation method therefor, and a biodegradable polyester film comprising same, the resin comprising a bio-derived softener, a first repeating unit, which comprises a first diol moiety and an aromatic dicarboxylic acid moiety, and a second repeating unit, which comprises a second diol moiety and an aliphatic dicarboxylic acid moiety. The biodegradable polyester resin comprises the bio-derived softener so as to have excellent environmental friendliness, can have maximized flexibility while maintaining a suitable tensile strength, and can have both excellent heat resistance and formability, and thus can be used in more diverse fields such as those of: packaging materials, garbage bags, mulching film and disposable products; wrap film, industrial stretch film, and formation film, which require high flexibility; building interior material lamination; and uses requiring three-dimensional formation such as 3D molding.
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