Patent ID: 6114000
Filing Date: 2000-09-05
Classification: B29B,B29C,B29L,B32B,Y10T

Abstract:
A material for FRTP molded objects comprising: a laminate in which a collection of reinforcing fibers is placed between thermoplastic resin films for supplying matrix resin; the laminate having opposed surfaces and side portions, in each of which side portions the thermoplastic resin films are fused such that the reinforcing fibers are surrounded by the thermoplastic resin films, the laminate having a middle portion between the side portions, which middle portion contains the collection of reinforcing fibers and parts of the thermoplastic resin films holding the collection of reinforcing fibers therebetween, the volumetric fiber content (Vf) of the laminate being from about 30 to 60 percent, and the laminate having a center portion between the opposed surfaces, in which center portion the reinforcing fibers are not impregnated or very slightly impregnated with resin such that the fibers in said center portion may slide with respect to each other so that said laminate is flexible.