DIFFUSIBLE MOLDING MATERIAL HAVING MATRIX POLYMER AND PEARL POLYMER, AND DIFFUSED MOLDED OBJECT OBTAINED BY USING IT

摘要

PROBLEM TO BE SOLVED: To provide a diffusible molding material which can be produced at a low cost without causing environmental pollution, and allow the use of a diffused molded object obtained by molding it and having high transmittance, low yellowness and a high energy half value angle. SOLUTION: The diffusible molding material has a matrix polymer and a pearl polymer having a refractive index nD different from that of the matrix polymer at 20 deg.C and a mean particle diameter of 5 to 40μm, wherein the pearl polymer is produced by dispersing and polymerizing in aqueous medium a polymerizable composition containing at least 50 mass% of a (meth)acrylate while the dispersion is stabilized with an aluminum compound and subjected to a shear rate of 103 s-1.