THERMOPLASTIC RESIN COMPOSITION FOR LIGHT-EMITTING DIODE REFLECTOR AND MOLDED PRODUCT COMPRISING SAME

• Main Authors: KIM, Ik Mo, PARK, Chan Moo, PARK, Sang Ki, KIM, Hyun Su, LEE, Sang Hwa
• Format: Patent
• Language: English; French; Korean
• Published: 06.06.2024
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

The thermoplastic resin composition for a light-emitting diode reflector, of the present invention, comprises: about 100 parts by weight of a polyester resin containing a repeating unit represented by chemical formula 1; about 5-50 parts by weight of glass fiber; about 0.1-7 parts by weight of an isobutylene-containing aromatic vinyl polymer; about 0.1-4 parts by weight of a hindered amine light stabilizer having a weight average molecular weight of about 2,100-4,000 g/mol; about 0.1-4 parts by weight of a sodium phosphate salt; and about 0.1-7 parts by weight of talc. The thermoplastic resin composition for a light-emitting diode reflector has excellent heat resistance, transparency, molding processability, and balance of these physical properties, or the like. La composition de résine thermoplastique pour un réflecteur de diode électroluminescente selon la présente invention comprend : environ 100 parties en poids d'une résine de polyester contenant une unité de répétition représentée par la formule chimique 1 ; environ 5 à 50 parties en poids de fibre de verre ; environ 0,1 à 7 parties en poids d'un polymère vinylique aromatique contenant de l'isobutylène ; environ 0,1 à 4 parties en poids d'un photostabilisant à amine encombrée ayant un poids moléculaire moyen en poids d'environ 2 100 à 4 000 g/mol ; environ 0,1 à 4 parties en poids d'un sel de phosphate de sodium ; et environ 0,1 à 7 parties en poids de talc. La composition de résine thermoplastique pour un réflecteur de diode électroluminescente présente une excellente résistance à la chaleur, une excellente transparence, une excellente aptitude au traitement de moulage et un équilibre de ces propriétés physiques, ou analogues. 본 발명의 발광다이오드 리플렉터용 열가소성 수지 조성물은 화학식 1로 표시되는 반복단위를 포함하는 폴리에스테르 수지 약 100 중량부; 유리 섬유 약 5 내지 약 50 중량부; 이소부틸렌 함유 방향족 비닐계 중합체 약 0.1 내지 약 7 중량부; 중량평균분자량이 약 2,100 내지 약 4,000 g/mol인 힌더드 아민계 광안정제 약 0.1 내지 약 4 중량부; 소듐 포스페이트 염 약 0.1 내지 약 4 중량부; 및 탈크 약 0.1 내지 약 7 중량부;를 포함하는 것을 특징으로 한다. 상기 발광다이오드 리플렉터용 열가소성 수지 조성물은 내열성, 투명성, 성형 가공성, 이들의 물성 발란스 등이 우수하다.