Near IR sensitive photoimageable/photopolymerizable compositions, media, and associated processes
申请人:E.I. DU PONT DE NEMOURS AND COMPANY
公开号:EP0889363A1
公开(公告)日:1999-01-07
Novel photopolymer compositions are disclosed which contain dyes that absorb strongly in the near infrared (near IR) region of the electromagnetic spectrum. These dyes are useful as photosensitizers for initiating a variety of photoimaging and photopolymerization reactions. Imaging Media are disclosed herein which are sensitive in the near infrared (near IR) region of the electromagnetic spectrum and which can initiate polymerization of ethylenically unsaturated monomer components in negative-acting photopolymer systems and/or which can initiate conversion of a leuco dye to its corresponding colored dye form. These imaging media comprise either a near IR dye photochemical sensitizer, a hexaarylbiimidazole (HABI) photoinitiator, a chain transfer agent, and a photopolymerizable material or a near IR dye photochemical sensitizer, a hexaarylbiimidazole (HABI) photoinitiator, and a leuco dye. These imaging media are useful in a variety of photopolymer products, including photoresists, proofing films, and holographic recording films.
本文公开了新型光聚合物组合物,其中含有在电磁波谱的近红外(近红外)区域具有强吸收能力的染料。这些染料可用作光敏剂,用于引发各种光成像和光聚合反应。本文公开的成像介质在电磁波谱的近红外(近红外)区域敏感,可引发负作用光聚合物体系中乙烯不饱和单体成分的聚合反应,和/或引发白兰地染料向其相应的有色染料形式的转化。这些成像介质包括近红外染料光化学敏化剂、六芳基双咪唑(HABI)光引发剂、链转移剂和可光聚合材料,或者包括近红外染料光化学敏化剂、六芳基双咪唑(HABI)光引发剂和白兰地染料。这些成像介质适用于各种光聚合物产品,包括光刻胶、打样膜和全息记录膜。