POLYLACTIC ACID RESIN VAPORIZATION PROMOTER AND COMPOSITION CONTAINING SAME

• Main Authors: JANG, Robin, HWANG, Jiho, KIM, Minhye, LEE, Changsuk, YOON, Ki Chull, KIM, Jeong Hyun, LEE, Sang-Youn
• Format: Patent
• Language: English; French; Korean
• Published: 07.09.2023
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

An embodiment of the present invention pertains to: a composition which contains at least 10 wt% and less than 100 wt% of a polylactic acid (PLA) resin on the basis of the total weight of the composition and has a degree of vaporization (V10w) of 50% or more as obtained by measuring the cumulative amount of carbon dioxide (CO2) generated after 10 weeks at 30°C; and a polylactic acid (PLA) resin vaporization promoter for promoting the vaporization of the polylactic acid (PLA) resin. The polylactic acid (PLA) resin vaporization promoter can significantly accelerate the vaporization of a polylactic acid (PLA) resin having a low degree of vaporization at a room temperature of 30°C, and thereby improve the biodegradation of the polylactic acid (PLA). Thus, the composition containing the polylactic acid (PLA) resin vaporization promoter can be used in various fields and exhibit excellent physical properties while effectively preserving the environment. Un mode de réalisation de la présente invention concerne : une composition qui contient au moins 10 % en poids et moins de 100 % en poids d'une résine d'acide polylactique (PLA) sur la base du poids total de la composition et présente un degré de vaporisation (V10w) supérieur ou égal à 50 % tel qu'il est obtenu en mesurant la quantité cumulative de dioxyde de carbone (CO2) généré après 10 semaines à 30 °C ; et un promoteur de vaporisation de résine d'acide polylactique (PLA) destiné à favoriser la vaporisation de la résine d'acide polylactique (PLA). Le promoteur de vaporisation de résine d'acide polylactique (PLA) peut nettement accélérer la vaporisation d'une résine d'acide polylactique (PLA) ayant un faible degré de vaporisation à une température ambiante de 30 °C, et améliorer ainsi la biodégradation de l'acide polylactique (PLA). Ainsi, la composition contenant le promoteur de vaporisation de résine d'acide polylactique (PLA) peut être utilisée dans divers domaines et présente d'excellentes propriétés physiques tout en préservant efficacement l'environnement. 본 발명의 일 실시예는 폴리락트산(PLA) 수지를 조성물 총 중량을 기준으로 10 중량% 이상 내지 100 중량% 미만으로 포함하고, 30℃에서 10주 경과 후 발생하는 이산화탄소(CO2)의 누적 발생량을 측정할 때, 기화도(V10w)가 50% 이상인 조성물, 및 상기 폴리락트산(PLA) 수지의 기화를 촉진하는 폴리락트산(PLA) 수지 기화 촉진제에 관한 것이다. 상기 폴리락트산(PLA) 수지 기화 촉진제는 30℃의 상온에서 기화도가 낮은 폴리락트산(PLA) 수지의 기화를 현저히 가속화시켜 폴리락트산(PLA) 수지의 생분해도를 향상시킬 수 있으므로, 이를 포함하는 상기 조성물은 다양한 분야에 활용되어 우수한 물성과 함께 환경 보전에 효과적으로 작용할 수 있다.