| abstract |
A polycarboxylic acid composition containing a polycarboxylic acid resin having a siloxane structure of exceptional heat stability and an organic backbone imparting a cured product with exceptional strength. The polycarboxylic acid composition provides a resin composition that is useful for electrical and electronic materials, molding materials, casting materials, laminate materials, coatings, adhesives, resists, and a broad range of other applications; and, in particular, is extremely useful as a material where optical properties and properties of close adhesion to machinery are required; e.g., adhesives and sealing materials for optical semiconductors (LED products and the like). This polycarboxylic acid composition contains an epoxy resin and a polycarboxylic acid resin having a siloxane structure and an organic backbone. |