| abstract |
[PROBLEMS] To provide an open-type porous reflector which does not contain a pigment or metal, can be easily produced with relatively low energy, and has excellent diffuse reflectance. A solventless thermosetting resin (A) and a curing agent (C) thereof, and a polyalkylene oxide and a polyalkylene glycol (B) compatible with the solventless thermosetting resin are uniformly mixed and cured. The component (B) was eluted with the solvent (D) from the molded product thus obtained, and was obtained at 380 nm to 250 An open-type porous reflector having a diffuse reflectance of 75% or more in a region of 0 nm is obtained. |