RECYCLED BIS(4-HYDROXYBUTYL)TEREPHTHALATE, METHOD FOR PREPARING SAME, AND POLYESTER RESIN USING SAME
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United States of America
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Issued Date -
Feb 20, 2025
app pub date -
Nov 22, 2023
filing date -
Nov 22, 2023
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Abstract
A recycled bis(4-hydroxybutyl)terephthalate according to an embodiment has a low residual amount of ethylene glycol derivatives, and thus, can be used as a polymerization raw material for high-crystallinity engineering polyester products or biodegradable polyester. Further the recycled bis(4-hydroxybutyl)terephthalate is easily crushed to produce flakes or powder, and provides excellent quality of, for example, colorand provides excellent quality of, for example, color.
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