Patent ID: 9079376
Filing Date: 2015-07-14
Classification: B32B,C08J,Y10T

Abstract:
1. A prepreg comprising a fiber substrate and a layer made of a thermosetting resin composition, wherein the layer made of the thermosetting resin composition contains a modified silicone oil or a compound having a skeleton derived from a modified silicone oil, and the layer made of a thermosetting resin composition has a phase separation structure, said phase separation structure being a sea-island structure, wherein an occupying area ratio of an island portion of the sea-island structure per unit area on an observation surface of the layer made of a thermosetting resin composition is 10% or more to 45% or less, and wherein the thermosetting resin composition contains at least one of a cyanate resin and an unsaturated imide resin.