A color filter comprising a thermosetting resin composition and its cured film.

Abstract

To provide a thermosetting resin composition which enables formation of a cured film excellent in NMP resistance and flatness, and has good storage stability even at normal temperature (23°C), and a color filter using a protective film composed of the cured product.SOLUTION: A thermosetting resin composition contains the following components (A) to (C), and contains 45-90 pts.mass of the component (A) and 10-55 pts.mass of the component (B) in 100 pts.mass of the total of the components (A) and (B), wherein a ratio C / B that is a ratio of the content of the component (C) to the content of the component (B) is 0.0005 to 0.5. Component (A): polyfunctional epoxy resin having an epoxy equivalent of 100-1,000 g / mol, component (B): specific polyvalent carboxylic acid hemiacetal ester, and component (C): specific acid anhydride group-containing carboxylic acid hemiacetal ester.SELECTED DRAWING: None

Claims

1. A thermosetting resin composition containing the following components (A) to (C), In a total of 100 parts by mass of components (A) and (B), component (A) is present in 45 to 90 parts by mass and component (B) is present in 10 to 55 parts by mass. A thermosetting resin composition characterized in that the ratio C / B, which is the ratio of the content of component (C) to the content of component (B), is 0.0005 to 0.

5. (A) Component: Polyfunctional epoxy resin with an epoxy equivalent weight of 100 to 1000 g / mol (B) Component: Polyvalent carboxylic acid hemiacetal ester represented by the following formula (1) or formula (2). (C) Component: Acid anhydride group-containing carboxylic acid hemiacetal ester represented by the following formula (3) 【Chemistry 1】 (In the formula, R １ (This independently represents an alkyl group having 1 to 6 carbon atoms.) 【Chemistry 2】 (In the formula, R ２ (This independently represents an alkyl group having 1 to 6 carbon atoms.) 【Transformation 3】 (In the formula, R ３ (This represents an alkyl group having 1 to 6 carbon atoms.)

2. A color filter having a protective film obtained by curing the thermosetting resin composition described in claim 1.

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