RELEASE SHEET-PROVIDED MULTILAYER STRUCTURE PREPREG, PREPREG ROLL, PREPREG TAPE, AND COMPOSITE MATERIAL

摘要

Regarding a prepreg having a non-impregnated portion left, the present invention addresses the problem of providing a prepreg capable of achieving sufficient vacuum moldability and handleability. The release sheet-provided multilayer structure prepreg is obtained by bonding a release sheet to the upper surface and/or the lower surface of a multilayer structure prepreg which has layered therein, in an alternate manner, non-impregnated layers and impregnated layers each obtained by impregnating a reinforcing fiber sheet with a matrix resin, wherein: the upper surface and the lower surface of the multilayer structure prepreg are formed of impregnated layers; and the inner layer portion of the multilayer structure prepreg excluding the upper surface and the lower surface includes at least one non-impregnated layer.