Patent ID: 9139706
Filing Date: 2015-09-22
Classification: B32B,C08G,C08J,C08K,C08L,Y10T

Abstract:
1. A prepreg containing components (A) to (C) defined below, wherein component (A) is disposed in or on one surface or both surfaces of a layer comprising components (B) and (C), and 90% or more of component (A) is present in a region extending from the surface(s) of the resulting prepreg containing components (A) to (C) to a depth equal to 20% of the average thickness of the prepreg: (A) urethane particles having tan δ of 0.15 or more at 10° C., having a three-dimensional cross-linked structure and having surfaces coated with hydrophobic silica, (B) a first epoxy resin composition, and (C) reinforcing fiber.