BLACK CURABLE RESIN COMPOSITION AND PROTECTIVE SHEET FOR REAR FACE OF SOLAR CELL USING THE SAME

• Main Authors: UMEZAWA MITSUO, TANAKA NAOHIRO
• Format: Patent
• Language: English; Japanese
• Published: 23.05.2016
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; SEMICONDUCTOR DEVICES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

PROBLEM TO BE SOLVED: To provide a black curable resin composition from which such a black cured resin layer can be formed that is excellent in long-term weather resistance and less likely causes changes in hues or decrease in glossiness even when the layer is subjected to a long-term accelerated weathering test.SOLUTION: The black curable resin composition comprises a specific acrylic copolymer (A), a pigment, and a polyisocyanate compound (D) essentially including a non-blocked polyisocyanate compound (d2). The pigment comprises a black pigment (B) and a white pigment (C). The composition contains a specific amount of the black pigment (B) and a specific amount of the white pigment (C) with respect to 100 pts.mass of the acrylic copolymer (A). The white pigment (C) contains a specific amount of titanium oxide (C1) having an average primary particle diameter of 0.3 μm to 10 μm.SELECTED DRAWING: None 【課題】 長期促進耐候性試験にかけても色相の変化や光沢の低下が生じ難い、長期耐候性に優れる黒色硬化樹脂層を形成し得る、黒色硬化性樹脂組成物の提供。【解決手段】 特定のアクリル系共重合体（Ａ）、顔料および非ブロック化ポリイソシアネート化合物（ｄ２）を必須とするポリイシシアネート化合物（Ｄ）を含有する黒色硬化性樹脂組成物であって、前記顔料が、黒色顔料（Ｂ）と白色顔料（Ｃ）とを含有し、前記アクリル系共重合体（Ａ）１００質量部に対し、特定量の黒色顔料（Ｂ）と特定量の白色顔料（Ｃ）を含有し、前記白色顔料（Ｃ）が、平均一次粒子径が０．３μｍ〜１０μｍの酸化チタン（Ｃ１）を特定量含有する、黒色硬化性樹脂組成物。【選択図】 なし