Product information "Low Refractive Index Optical Adhesives"
Refractive Index 1.375-1.438; Viscosity 7-25 mPas; Transmittance 76%-94%; Hardness 20-78 Shore D; Shear Bond Strength 27->61 kgf/cm²; UV Curing Conditions 10 mW/cm², 1-10 min; Tg +18-+103 °C
Using its refractive index control technology and optical loss reduction technology, NTT-AT has developed optical adhesives with a low refractive index of 1.4 or less. These resins are aimed at usage in the fields of optical recording, display technology, optical energy uses, etc.
NTT’s low refractive index resins are also excellent in transparency in visible light domains. Within this series you find acrylate-based adhesives (#18204 and #18114) as well as epoxy adhesives (E3810). To match the particular working environment of our customers, NTT-AT provides both ultraviolet (UV) and heat curing types.