POLYESTER RESIN COMPOSITION FOR REFLECTING MATERIAL, AND REFLECTING MATERIAL CONTAINING THE SAME

• Main Authors: TAKIZAWA NOBUHIRO, OGASAWARA HIDETO, KIDA MARIKO, MAEDA MASANOBU, TAKEHARA AKINOBU, MAKIGUCHI WATARU
• Format: Patent
• Language: English; Japanese
• Published: 12.09.2019
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; SEMICONDUCTOR DEVICES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

To provide a polyester resin composition for a reflecting material, capable of giving a reflecting material in which deterioration in reflectance due to exposure to heat and light is suppressed.SOLUTION: The polyester resin composition for a reflecting material contains 30 pts.mass or more and 80 pts.mass or less of a polyester resin (A) having a melting point or a glass transition temperature of 250°C or higher, 0.1 pt.mass or more and 5.0 pts.mass or less of a modified olefin polymer (B) containing 0.2-1.8 mass% of a functional group structural unit containing a heteroatom, 0.1 pt.mass or more and 5.0 pts.mass or less of an unmodified olefin polymer (C), 5 pts.mass or more and 50 pts.mass or less of a white pigment (D), and 1 pt.mass or more and 50 pts.mass or less of an inorganic filler (E), provided that the total of (A)-(E) is 100 pts.mass.SELECTED DRAWING: None 【課題】本発明の課題は、熱や光への暴露による反射率の低下が抑制された反射材を付与しうる、反射材用ポリエステル樹脂組成物を提供することである。【解決手段】融点もしくはガラス転移温度が２５０℃以上であるポリエステル樹脂（Ａ）３０質量部以上８０質量部以下と、ヘテロ原子を含む官能基構造単位を０．２〜１．８質量％含む変性オレフィン重合体（Ｂ）０．１質量部以上５．０質量部以下と、未変性オレフィン重合体（Ｃ）０．１質量部以上５．０質量部以下と、白色顔料（Ｄ）５質量部以上５０質量部以下と、無機充填材（Ｅ）１質量部以上５０質量部以下とを含み、ただし、成分（Ａ）〜（Ｅ）の合計は１００質量部である、反射材用ポリエステル樹脂組成物。【選択図】なし