CURABLE COMPOSITION AND OPTICAL ELEMENT USING THE SAME

• Main Authors: ISHIDA KYOHEI, FUJIKAWA TAKESHI
• Format: Patent
• Language: English; Japanese
• Published: 15.02.2018
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

PROBLEM TO BE SOLVED: To provide a curable composition capable of forming a cured product excellent in light resistance, heat resistance, and transparency.SOLUTION: The curable composition contains a component (A): an alicyclic epoxy compound represented by formula (a), a component (B): a light resistance-imparting agent having a maximum absorption wavelength between 280 nm and 320 nm in an ultraviolet-visible light absorption spectrum at 250-400 nm, and a component (C): a photo-cationic polymerization initiator. [X is a single bond or a linking group; and Rto Rare each independently H, a halogen, a hydrocarbon group which may contain O or a halogen, or a substituted/unsubstituted alkoxy.]SELECTED DRAWING: None 【課題】耐光性、耐熱性、及び透明性に優れる硬化物を形成できる硬化性組成物を提供する。【解決手段】成分（Ａ）、成分（Ｂ）及び成分（Ｃ）を含む硬化性組成物。成分（Ａ）：式（ａ）で表される脂環式エポキシ化合物、成分（Ｂ）：２５０〜４００ｎｍにおける紫外可視光吸収スペクトルにおいて、２８０〜３２０ｎｍの間に最大吸収波長を有する耐光性付与剤、成分（Ｃ）：光カチオン重合開始剤［Ｘは単結合又は連結基；Ｒ１〜Ｒ１８は各々独立にＨ、ハロゲン、Ｏ或いはハロゲンを含んでも良い炭化水素基又は置換／非置換のアルコキシ］【選択図】なし