申请人:DIC Corporation
公开号:US10741464B2
公开(公告)日:2020-08-11
Provided are an active ester resin capable of having low cure shrinkage and forming a cured product having a low dielectric loss tangent, a curable resin composition including the ester resin, a cured product of the resin composition, a printed wiring board, and a semiconductor encapsulating material. The active ester resin includes a product of reaction of essential raw materials including: a phenolic hydroxyl group-containing compound (A); a polynaphthol resin (B) having a molecular structure in which naphthol compound (b) moieties are linked with an aromatic ring- or cyclo ring-containing structural moiety (α); and an aromatic polycarboxylic acid or an acid halide thereof (C). Also provided are a curable resin composition including the ester resin, a cured product of the resin composition, a printed wiring board, and a semiconductor encapsulating material.
本发明提供了一种能够具有低固化收缩率并形成具有低介电损耗正切的固化物的活性酯树脂、一种包括该酯树脂的可固化树脂组合物、一种该树脂组合物的固化物、一种印刷电路板和一种半导体封装材料。活性酯树脂包括以下主要原料的反应产物:含酚羟基化合物(A);聚萘酚树脂(B),其分子结构中萘酚化合物(b)分子与芳香环或环状结构分子(α)相连;以及芳香族聚羧酸或其酸卤化物(C)。此外,还提供了包括酯树脂的可固化树脂组合物、树脂组合物的固化产物、印刷线路板和半导体封装材料。