PHOTOSENSITIVE CONDUCTIVE PASTE, CONDUCTIVE THIN FILM, ELECTRIC CIRCUIT AND TOUCH PANEL

• Main Authors: TAGA KEIKO, AWATA TATSUYA, HAMAZAKI AKIRA
• Format: Patent
• Language: English; Japanese
• Published: 09.05.2016
• Subjects: APPARATUS SPECIALLY ADAPTED THEREFOR; BASIC ELECTRIC ELEMENTS; CABLES; CALCULATING; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; CHEMISTRY; CINEMATOGRAPHY; COMPOSITIONS BASED THEREON; COMPUTING; CONDUCTORS; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; ELECTROGRAPHY; HOLOGRAPHY; INSULATORS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; MATERIALS THEREFOR; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; ORIGINALS THEREFOR; PHOTOGRAPHY; PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES; PHYSICS; PRINTED CIRCUITS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; THEIR PREPARATION OR CHEMICAL WORKING-UP

PROBLEM TO BE SOLVED: To provide a photosensitive conductive paste having sufficient conductivity, maintaining good thin line developability even with short development time, having excellent adhesiveness to a substrate and durability and excellent in temporal stability.SOLUTION: There are provided a conductive thin film, a conductive laminate, an electric circuit and a touch panel formed by using a photosensitive conductive paste containing a photosensitive organic binder (A), a conductive powder (B), a photopolymerizable compound (C), a photoinitiator (D), an organic solvent (E), and a basic compound (F), and having an acid value of the photosensitive organic binder (A) of 500 to 4,000 eq/ton and a weight average molecular weight of 5,000 to 8,0000.SELECTED DRAWING: None 【課題】 本発明は、十分な導電性を有しつつ、現像時間が短時間であっても良好な細線現像性を維持するとともに、基材に対し優れた密着性、耐久性を有し、かつ経時安定性に優れた感光性導電ペーストを提供するものである。【解決手段】 感光性有機バインダー(A)、導電性粉体(B)、光重合性化合物(C)、光重合開始剤(D)、有機溶剤(E)、および塩基性物質(F)を含有し、該感光性有機バインダー(A)の酸価が５００〜４，０００ｅｑ／ｔｏｎ、重量平均分子量が５，０００〜８，００００であることを特徴とする感光性導電ペーストを用いて形成された導電性薄膜、導電性積層体、電気回路およびタッチパネル。【選択図】なし