SUNSHINE SHIELDING RESIN COMPOSITION

• Main Authors: YAMAZAKI TAKANORI, FUTAMI HIDENOBU, MIZUNO KOICHI, SHIRAI TOMOYUKI, SAKAGUCHI GENICHI
• Format: Patent
• Language: English; Japanese
• Published: 18.07.2019
• 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

To provide a resin composition exhibiting excellent sunshine shielding property.SOLUTION: A sunshine shielding resin composition contains 100 pts.mass of a thermoplastic resin and 10-80 pts.mass of titanium oxide particles, in a histogram of particle size distribution of titanium oxide particles measured with a hierarchy width of 50 nm by a laser analysis/scattering method using a sample liquid obtained by dispersing the sunshine shielding resin composition in a solvent in which a thermoplastic resin is soluble, a ratio of a large frequency to a small frequency between a frequency with lower hierarchy by 1 and a frequency with higher hierarchy by 1 with the hierarchy indicating a mode value as the center is 1.2 to 1.6.SELECTED DRAWING: None 【課題】優れた日照遮蔽性を示す樹脂組成物を提供する。【解決手段】熱可塑性樹脂１００質量部と、酸化チタン粒子１０〜８０質量部とを含有する日照遮蔽性樹脂組成物であって、日照遮蔽性樹脂組成物を熱可塑性樹脂が可溶な溶媒に分散させて得た試料液を用いてレーザー解析／散乱法にて５０ｎｍの階級幅で測定した酸化チタン粒子の粒度分布のヒストグラムにおいて、モード値を示す階級を中心に１つ低い階級の頻度と１つ高い階級の頻度との、小さな頻度に対する大きな頻度の比率が１．２〜１．６である日照遮蔽性樹脂組成物。【選択図】なし