Photochromic photosensitive material

Abstract

Abstract PURPOSE:To provide a photochromic photosensitive material having a photochromic photosensitive layer consisting of a specified compd. and contg. a singlet state oxygen deactivator in the surface layer and exhibiting excellent performance in repeated recording/erasion cycles in the air. CONSTITUTION:The photochromic photosensitive material has a photochromic photosensitive layer formed with a spiropyrane compd. [e.g.1'-methyl-3-ethoxy- 6-nitro-8-methoxyspiro (2H-1-benzopiyran-2,2'-benzothiazolne)] and a macromolecular substance (e.g. phenoxy resin) and contg. a siglet state oxygen deactivator [e.g. bis (2,2,6,6-tetramethyl-4-piperidinyl)sebacate] at least in the surface layer. The photochromic photosensitive material thus prepd. is superior to any conventional materials in repeated recording/erasion performance in the air and has a wider selectivity of the structure of a recording layer when used as a laser recording material.

Inventors

• 👤 Shinichiro Tamura
• 👤 眞一郎 田村
• 👤 Nobuyoshi Seto
• 👤 瀬戸　順悦

Bibliographic Details