RECYCLED BIS(4-HYDROXYBUTYL)TEREPHTHALATE, METHOD FOR PREPARING SAME, AND POLYESTER RESIN USING SAME

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United States of America

APP PUB NO 20250059319A1
SERIAL NO

18724608

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Abstract

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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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Patent Owner(s)

Patent OwnerAddress
SK CHEMICALS CO LTD310 PANGYO-RO BUNDANG-GU SEONGNAM-SI GYEONGGI-DO 13494

International Classification(s)

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  • 2023 Application Filing Year
  • C08J Class
  • 1133 Applications Filed
  • 242 Patents Issued To-Date
  • 21.36 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances2023202420250255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
HWANG, Eun-Yeong Gyeonggi-do, KR 2 0
YOO, Young-Man Gyeonggi-do, KR 11 18

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Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges41900255075100125150175200225250275300325350375400425450

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