THERMOSETTING PHOTO-REFLECTIVE RESIN COMPOSITION HAVING SUPERIOR DISCOLORATION-RESISTANCE AND PREVENTING THE REDUCTION OF PHOTO-REFLECTANCE BY INCLUDING POLYFUNCTIONAL POLYOL HAVING TWO OR MORE HYDROXYL GROUPS AS A HARDENING ACCELERATOR, A MANUFACTURING METHOD THEREOF, A REFLECTING PLATE FOR OPTICAL SEMICONDUCTOR DEVICES USING THE SAME, AND AN OPTICAL SEMICONDUCTOR DEVICE USING THE SAME

摘要

PURPOSE: A thermosetting photo-reflective resin composition is provided to have superior discoloration-resistance in which vellowing is not occurred, and to prevent the decreasing of photo-reflectance for a long time.;CONSTITUTION: A thermosetting photo-reflective resin composition comprises: polyfunctional polyol including two or more -OH radicals as a hardening accelerator, epoxy, a hardener, inorganic filler, and a white pigment. The hardening accelerator has 5-45 parts by weight comparison to the 100 parts by weight epoxy resin. The maintaining rate of photo-reflectance is 'maintaining rate of photo-reflectance(%)=photo-reflectance after heat-treating at 180 °C for 168 hours / photo-reflectance before heat-treating'.;COPYRIGHT KIPO 2012