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:
Feb. 20, 1990
Filed:
Sep. 30, 1988
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
Photopolymerizable initiator compositions having high photosensitivity to light sources giving visible rays and the other rays in the longer wavelengths. The compositions containing polymerizable compounds having ethylenic unsaturated bonds and salts formed by an organic boron compound anion and an organic cationic azulene dye compound comprising an azulene ring having a nitrogen atom or a chalcogen atom in the 2- or 4- position can be used for making lithographic printing plates, resinous relief printing plates, and resists or photomasks for printed circuit substrates. The polymerizable compounds having ethylenic unsaturated bonds can be encapsulated to obtain microcapsules to be used for the formation of black-and-white or color images.