POLYESTER-BASED RESIN COMPOSITION, AND MOLDED PRODUCT THEREOF

• Main Authors: PARK, Jun Ki, KIM, Myeung Il, PARK, Jin Sol, LEE, Soo Min, JUN, Yi Seul, HWANG, Hee Jae, KO, Gun
• Format: Patent
• Language: English; French; Korean
• Published: 29.04.2021
• Subjects: ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING ORSUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES INGENERAL; BLASTING; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF; HEATING; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO USESOR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS; LIGHTING; MECHANICAL ENGINEERING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; VEHICLES IN GENERAL; WEAPONS

The present invention relates to a polyester-based resin composition, and a molded product thereof, and more specifically, to a polyester-based resin composition characterized by including: 93-99.5 wt% of a polybutylene terephthalate resin; 0.1-3 wt% of a polar group-containing lubricant; and 0.1-2 wt% of an antioxidant, and a molded product thereof. According to the present invention, there is an effect of providing a polyester-based resin composition, and a molded product thereof, wherein the polyester-based resin composition has excellent fluidity, mechanical properties, thermal stability, and injection stability, has excellent surface properties, such that iridescent light due to diffused refraction is not generated, and has low haze, thus being particularly suitable for an automobile headlamp bezel. La présente invention concerne une composition de résine à base de polyester, et un produit moulé associé, et plus précisément, une composition de résine à base de polyester caractérisée en ce qu'elle comprend : de 93 à 99,5 % en poids d'une résine de poly(butylène téréphtalate) ; de 0,1 à 3 % en poids d'un lubrifiant contenant un groupement polaire ; et de 0,1 à 2 % en poids d'un antioxydant, et un produit moulé associé. Selon la présente invention, il y a un effet de fourniture d'une composition de résine à base de polyester, et d'un produit moulé associé, la composition de résine à base de polyester ayant une excellente fluidité, d'excellentes propriétés mécaniques, une excellente stabilité thermique et une excellente stabilité à l'injection, a d'excellentes propriétés de surface, comme l'absence de génération de lumière iridescente due à la réfraction diffusée, et a un faible trouble, étant ainsi particulièrement appropriée pour un cercle de phare d'automobile. 본 발명은 폴리에스테르계 수지 조성물 및 이의 성형품에 관한 것으로, 보다 상세하게는 폴리부틸렌 테레프탈레이트 수지 93 내지 99.5 중량%; 극성기 함유 활제 0.1 내지 3 중량%; 및 산화방지제 0.1 내지 2 중량%를 포함하는 것을 특징으로 하는 폴리에스테르계 수지 조성물 및 이의 성형품에 관한 것이다. 본 발명에 따르면, 유동성, 기계적 물성, 열안정성 및 사출 안정성이 우수하고, 표면 특성이 우수하여 난반사로 인한 무지개 빛이 발생하지 않으며 헤이즈가 낮아 자동차 헤드 램프 베젤에 특히 적합한 폴리에스테르계 수지 조성물 및 이의 성형품을 제공하는 효과가 있다.