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Polyvalent carboxylic acid and polyvalent carboxylic acid composition, epoxy …
摘要
A polycarboxylic acid that is represented by the following formula (1-1), (In the formula (1-1), R 1 represents an alkylene group having 1 to 6 carbon atoms, R 2a is in a methyl group. Formula (1-1), there are R 1 presence of a plurality of respectively identical May be different.) A carboxylic …
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