Patent ID: 7989561
Filing Date: 2011-08-02
Classification: C08G,C08L,H05K

Abstract:
1. A thermosetting resin composition comprising: a liquid epoxy resin being liquid at 20° C. and having at least two epoxy groups in a molecule; a solid epoxy resin being solid at 40° C. and having at least three epoxy groups in a molecule; a semisolid epoxy resin being solid at 20° C. and liquid at 40° C. and having at least two epoxy groups in a molecule; an epoxy curing agent; and a filler, wherein a ratio of mass of the liquid epoxy resin to a sum of mass of the solid epoxy resin and mass of the semisolid epoxy resin is about 1:1 to about 1:10, and wherein a ratio of the mass of the solid epoxy resin to the mass of the semisolid epoxy resin is about 1:0.5 to about 1:2.