SPIROXAZINE COMPOUNDS AND THE PHOTO-CHROMIC ARTICLES USING THEM

摘要

The present invention relates to a spirooxazine compound and a photosensitive material using the compound by dissolving or dispersing in high polymer material. The spirooxazine compound improves durability, makes dark density of color fixation in exposuring to sunlight or ultraviolet rays, and starts color fixation or decoloration at a high temperature.