Photosensitive composition for forming light shading film, black bottom formed from said light shading film for photosensitive composition
A technology of photosensitive composition and light-shielding film, which is applied in the direction of photosensitive materials used in photomechanical equipment, etc., can solve the problems of poor sensitivity and decreased transmittance, and achieve improved transmittance, increased sensitivity, and improved sensitivity degree of effect
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[0090] Examples of the present invention are described below, but the present invention is by no means limited thereto.
[0091] (Synthesis example of resin)
[0092] According to the record of JP-A-2001-354735, 235g of bisphenol fluorene type epoxy resin (epoxy equivalent 235) and 110mg of tetramethylammonium chloride, 2,6-di-tert-butyl-4- 100 mg of methylphenol and 72.0 g of acrylic acid were heated and dissolved at 90-100° C. while blowing air thereinto at a rate of 25 mL / min. Next, while the solution was kept cloudy, the temperature was gradually raised, and it was heated to 120° C. to completely dissolve it. Wherein the solution gradually turns into a transparent viscous state, and the stirring is continued in this state.
[0093] Meanwhile, the acid value was measured, and heating and stirring were continued until it became 1.0 mgKOH / g or less. It takes 12 hours for the acid value to reach the target value. Then, it cooled to room temperature, and the bisphenol fluor...
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