PHOTOPOLYMERIZABLE COMPOSITION COMPRISING A SQUARYLIUM COMPOUND

摘要

The present invention relates to photopolymerizable compositions comprising an addition-polymerizable compound which has at least one ethylenically unsaturated double bond; a radical-producing agent and a squarylium compound represented by the formula (I): <IMG> The compositions are highly sensitive to visible and near infrared lights, particularly He-Ne laser, LED, diode laser, etc. having oscillation wavelengths in a wavelength region of 600 nm or more, and thus are useful as materials for holograms, PS plates for laser direct process, dry film resists, digital proofs. photosensitive microcapsules.