SINOMER® BPEFDA (Bisphenol Fluorene Ethoxylate Diacrylate, CAS 161182-73-6) is a difunctional acrylate 单体 containing a rigid fluorene backbone and 柔韧性 ethoxy chains. It offers exceptionally high refractive index (>1.600), 高硬度, and excellent chemical resistance. The 单体 is supplied as a blend with OPPEA (≤50%) to optimize handling and reactivity. SINOMER® BPEFDA is specifically designed for UV‑curable systems where high clarity and high refractive index are required, such as optical films, advanced coatings, inks, and adhesives.