Radiation-sensitive resin composition and color filter
A resin composition, sensitive technology, applied in instruments, optical filters, photosensitive materials for optomechanical equipment, etc., can solve problems such as impurities
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[0034] The dispersant used in the preparation of the above-mentioned pigment dispersion liquid can use, for example, suitable dispersants such as cationic, anionic, nonionic or amphoteric, and preferably contain a compound having a urethane bond (hereinafter referred to as "urethane-based Dispersants").
[0035]The above-mentioned urethane-based dispersant, for example, can use the formula R-NH-COO-R' (R and R' are aliphatic, alicyclic or aromatic monovalent or polyvalent organic groups, and the polyvalent organic group Furthermore, it is represented by combining with other groups having urethane bonds or other groups). That is, the urethane bond can exist in the lipophilic group and / or the hydrophilic group in the urethane dispersant, and can also exist in the main chain and / or side chain of the urethane dispersant, and then can be present in the urethane dispersant. One or more are present in the alkane-based dispersant. When two or more urethane bonds exist in the urethan...
Embodiment
[0341] Hereinafter, an Example is given and the embodiment of this invention is demonstrated more concretely. However, the present invention is not limited to the following examples.
[0342] Mw and Mn of the resins obtained in the following synthesis examples were measured by gel permeation chromatography (GPC) by the following method.
[0343] Apparatus: GPC-101 (manufactured by Showa Denko Co., Ltd.).
[0344] Chromatographic column: GPC-KF-801, GPC-KF-802, GPC-KF-803 and GPC-KF-804 are used in combination.
[0345] Mobile phase: tetrahydrofuran containing 0.5% by weight phosphoric acid.
Synthetic example 1
[0347] Add 10 parts by weight of 2,2'-azobisisobutyronitrile and 400 parts by weight of diethylene glycol monomethyl ether acetate into a flask with a condenser tube and a stirrer, then add 30 parts by weight of methacrylic acid, 31.2 parts by weight Parts of N-phenylmaleimide, 20 parts by weight of benzyl methacrylate, 18.8 parts by weight of styrene and 10 parts by weight of α-methylstyrene dimer as a molecular weight regulator, after replacing with nitrogen, slowly While stirring, the temperature of the reaction solution was raised to 80° C., and polymerization was maintained at this temperature for 3 hours. Thereafter, the temperature of the reaction solution was raised to 100°C, 2 parts by weight of 2,2'-azobisisobutyronitrile was added, and polymerization was continued for 1 hour to obtain a resin solution (solid content concentration = 20.1% by weight). Mw=5,000 and Mw / Mn=3.6 of this resin. This resin is referred to as "resin (b-1)".
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