Korea Advanced Institute of Science and Technology

SeungCheol Yang

Byeong-Soo Bae

Joon-Soo Kim

JungHo Jin

Ji Hoon Ko

Jun-young Bae

Provided is a photo-curable transparent resin in which an oxetane monomer for promotion of photo-curing, control of viscosity, and improvement of physical properties is mixed with a photo-cationically polymerizable cyclo-aliphatic epoxy group-containing oligosiloxane resin prepared by a sol-gel reaction. The photo-cationically polymerizable photo-curable transparent resin added with the oxetane monomer provides a cured product having high curing density and retaining excellent mechanical properties, thermal-mechanical properties, and electrical properties.

Photo-curable transparent resin composition

The present disclosure relates to a thermally resistant optical siloxane resin composition including siloxane containing photo-cationically polymerizable epoxy group, a photo initiator, and an antioxidant.

Thermally resistant optical siloxane resin composition

A transparent siloxane resin composition for optical applications is provided including: (1) a vinyl-oligosiloxane hybrid prepared by a non-hydrolytic condensation reaction of an organoalkoxysilane having a vinyl group or a mixture of an organoalkoxysilane having a vinyl group and a metal alkoxide with an organosilanediol; (2) an organohydrosilicone compound having two or more silicon-bonded hydrogen atoms; and (3) a metal catalyst. The resulting transparent siloxane resin exhibits excellent light transmittance, light resistance and heat resistance, has refractive index and hardness suitable for optical applications, including optical devices, displays, LEDs or the like, and experiences little contraction during processing.

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Daejeon, South Korea

SeungCheol Yang