Resin composition and Formed structure for light reflection

The present invention provides a light reflection resin composition and a molded body, wherein the light reflection resin composition has a high light reflection rate and can mold a molded body in which heat yellowing and resin deterioration are controlled. The light reflection resin composition com...

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Bibliographische Detailangaben
Hauptverfasser: MASUKO KEISUKE, SASAKI MASAYA, WATANABE TOMOHIRO, FUKUDOME YASUHIRO
Format: Patent
Sprache:eng ; kor
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Zusammenfassung:The present invention provides a light reflection resin composition and a molded body, wherein the light reflection resin composition has a high light reflection rate and can mold a molded body in which heat yellowing and resin deterioration are controlled. The light reflection resin composition comprises: titanium dioxide (A) having an average particle diameter of 0.2-0.35 m; a thermoplastic resin (B); and silicone oil (C). The titanium dioxide (A) comprises titanium dioxide particles and an inorganic covering layer for covering the surfaces of the titanium dioxide particles. The inorganic covering layer comprises aluminum oxide and silicone oxide. The silicone oil (C) comprises methyl hydrogen polysiloxane (C-1) having a functional group equivalent of 50-300 g/mol. 본 발명은 높은 광선 반사율을 가지며, 가열 황변 및 수지 열화를 억제한 성형체를 성형할 수 있는 광선 반사 수지 조성물 및 성형체의 제공을 목적으로 한다. 평균 입자 직경 0.2 ~ 0.35㎛의 이산화 티타늄 (A)와 열가소성 수지 (B)와 실리콘 오일 (C)를 포함하고, 상기 이산화 티타늄 (A)가 이산화 티타늄 입자, 및 상기 이산화 티타늄 입자의 표면을 덮는 무기 피복층을 구비하고, 상기 무기 피복층이 산화 알루미늄 및 실리콘 산화물을 포함하고, 상기 실리콘 오일 (C)가 관능기 당량 50 ~ 300g/mol의 메틸 하이드로겐 폴리실록산 (C-1)을 포함하는 광선 반사 수지 조성물.