METHOD FOR PRODUCING POLYESTER RESIN AND FIBER COMPRISING REGENERATED BIS(2-HYDROXYETHYL) TEREPHTHALATE

A polyester resin according to the present invention comprises a regenerated bis(2-hydroxyethyl) terephthalate having high purity and containing diethylene glycol ester in an amount controlled below a certain level, and thus has heat resistance and quality comparable to the original resin even thoug...

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Bibliographische Detailangaben
Hauptverfasser:	KIM, Ji-Hun, KIM, Do-Kyoon, KIM, Sung-Gi, PARK, Jun-Yong, PARK, Kwang-Woo, PARK, Ji Hye, LEE, Joong Ki
Format:	Patent
Sprache:	eng ; fre ; kor
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY NATURAL OR ARTIFICIAL THREADS OR FIBRES ORGANIC CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS SPINNING TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP
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Beschreibung
Zusammenfassung:	A polyester resin according to the present invention comprises a regenerated bis(2-hydroxyethyl) terephthalate having high purity and containing diethylene glycol ester in an amount controlled below a certain level, and thus has heat resistance and quality comparable to the original resin even though the polyester resin is regenerated through chemical recycling. In particular, a polyester fiber comprising the polyester resin of the present invention has excellent strength, elongation, and processability, and can thus be used as an eco-friendly fiber product. Une résine de polyester selon la présente invention comprend un bis(2-hydroxyéthyl) téréphtalate régénéré ayant une pureté élevée et contenant un ester de diéthylène glycol en une quantité contrôlée au-dessous d'un certain niveau, et présente ainsi une résistance à la chaleur et une qualité comparables à la résine d'origine même si la résine de polyester est régénérée par recyclage chimique. En particulier, une fibre de polyester comprenant la résine de polyester de la présente invention présente d'excellentes propriétés en termes de résistance, d'allongement et d'excellente aptitude au traitement, et peut ainsi être utilisée en tant que produit fibreux respectueux de l'environnement. 본 발명에 따른 폴리에스테르 수지는 순도가 높고 디에틸렌글리콜 에스테르의 함량이 일정 수준 이하로 조절된 재생 비스(2-히드록시에틸)테레프탈레이트를 포함하므로, 화학적 재활용 방식으로 재생된 폴리에스테르 수지임에도 최초 수지에 상당하는 내열성과 품질을 갖는다. 특히 본 발명의 폴리에스테르 수지를 포함하는 폴리에스테르 섬유는 강도와 신도 및 가공성이 우수하므로 친환경 섬유 제품으로 사용될 수 있다.