FORMED BODY FOR OPTICAL MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a formed body for an optical material having excellent trimming property and a small photoelastic coefficient to maintain transparency during drawing. SOLUTION: Rubber-containing copolymer particles (b) of a three-layer structure are blended with an acrylic resin (a) of a specific composition ratio. COPYRIGHT: (C)2009,JPO&INPIT