Polyvalent carboxylic acid composition, a method of manufacturing a polyvalent carboxylic acid composition, curing agent for epoxy resin composition, the epoxy resin composition and a cured product

摘要

formula (1) silicone oil represented by (a) a compound having one or more carboxylic acid anhydride groups in the molecule (b) and the addition reaction is allowed carboxylic acid compound obtained by (J ) and one or more carboxylic polyhydric alcohol in the polyhydric alcohol-modified lactone polymer obtained by ring-opening addition polymerization of lactones having 4 to 8 carbon atoms (c) within a molecule with a bifunctional or more alcoholic hydroxyl groups polycarboxylic acid composition containing a compound having an acid anhydride group and (d) an addition reaction is allowed polycarboxylic acid compound obtained by (K). ## STR1 ## In Formula (1), R1 represents an alkylene group having 1 to 10 carbon atoms through an ether bond, each R2 independently methyl, phenyl or cyclohexyl. Also n it means a repeat is a number average value, which is 1 to 100.