URETHANE RESIN COMPOSITION, CURED OBJECT, AND PHOTOSEMICONDUCTOR DEVICE USING CURED OBJECT

摘要

A urethane resin composition obtained by a method comprising the steps of: melt mixing an isocyanate (B), an antioxidant (C), a release agent (D) and a dispersing agent (E) to obtain a molten mixture, and mixing the molten mixture and a polyol (A): wherein the release agent (D) is a compound represented by the following formula (1): [Chemical Formula 1] R1—COOH  (1) the dispersing agent (E) is a compound represented by the following formula (2) having a weight-average molecular weight Mw of no greater than 16000: and the content of the dispersing agent (E) in the urethane resin composition is 0.1 to 5.0 wt %.