Negative photosensitive resin composition, pattern formed therewith, and image display device
A technology of photosensitive resin and composition, applied in the field of photosensitive resin composition, can solve the problems of pattern peeling, residue generation, difficulty in fine pattern formation, etc., and achieves excellent adhesion, storage stability, and excellent heat resistance. and chemical resistance effect
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manufacture example 1
[0090] Production Example 1. Synthesis of Alkali-Soluble Resin
[0091] In a 1L flask equipped with a reflux cooler, a dropping funnel, and a stirrer, nitrogen was flowed in at 0.02L / min to form a nitrogen atmosphere, 300 parts by weight of methyl ethyl diglycol was charged, and heated to 70°C while stirring. ℃. Next, 20 parts by weight of norbornene, 30 parts by weight of styrene, 45 parts by weight of methacrylic acid, 3-acryloyloxy-2-hydroxypropyl methacrylate (3-Acryloyloxy-2- 135 parts by weight of hydroxypropyl methacrylate) were dissolved in 140 parts by weight of methyl ethyl diglycol to prepare a solution.
[0092] Using a dropping funnel, the prepared solution was dropped into a flask kept at 70° C. over 4 hours. On the other hand, 30 parts by weight of the photopolymerization initiator 2,2'-azobis(2,4-dimethylvaleronitrile) was dissolved in methyl ethyl diglycol 225 over a period of 4 hours using another dropping funnel. The solution in parts by weight was dropp...
manufacture example 2
[0094] Production Example 2. Synthesis of Alkali-Soluble Resin
[0095] A 1 L flask equipped with a reflux cooler, a dropping funnel, and a stirrer was made into a nitrogen atmosphere, 300 parts by weight of methyl ethyl diglycol was charged, and it heated to 70 degreeC, stirring. Next, 300 parts by weight of a mixture of the following chemical formula 4 and chemical formula 5 (the molar ratio is 50:50), (3-ethyloxetan-3-yl) methyl methacrylate ((3-ethyloxetan - 150 parts by weight of 3-yl)methyl methacrylate) and 50 parts by weight of methacrylic acid were dissolved in 140 parts by weight of methyl ethyl diglycol to prepare a solution.
[0096] [chemical formula 4]
[0097]
[0098] [chemical formula 5]
[0099]
[0100] The prepared solution was dropped into a flask kept at 70° C. using a dropping funnel over 4 hours. On the other hand, 30 parts by weight of the photopolymerization initiator 2,2'-azobis(2,4-dimethylvaleronitrile) was dissolved in methyl ethyl digl...
manufacture example 3
[0102] Production Example 3. Synthesis of Alkali-Soluble Resin
[0103] Except that no norbornene (norbornene) was added, an alkali-soluble resin was produced in the same manner as in Production Example 1 above to obtain a copolymer c with a solid content of 35.5% by weight and an acid value of 123.7 mgKOH / g (solid content conversion). solution.
[0104] At this time, the weight average molecular weight of the resin was 15,000, and the molecular weight distribution (Mw / Mn) was 2.3.
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