The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 28, 1999
Filed:
Oct. 07, 1997
Tsuguo Yamaoka, Funabashi-shi, Chiba 273, JP;
Kenichi Koseki, Chiba-shi, Chiba 260, JP;
Mitsuharu Obara, Yokohama-shi, Kanagawa 225, JP;
Ikuo Shimizu, Yokkaichi-shi, Mie 512, JP;
Yukiyoshi Ito, Tokyo 154, JP;
Hitoshi Kawato, Yokkaichi-shi, Mie 510, JP;
Other;
Abstract
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): 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, presensitized plate for laser direct process, dry film resists, digital proofs, photosensitive microcapsules.