NOTCHED PREPREG AND METHOD FOR PRODUCING NOTCHED PREPREG

• Main Authors: KARAKI, Takuya, ADACHI, Kentaro, TSUDA, Terumasa, FUJITA, Yuzo
• Format: Patent
• Language: English; French; German
• Published: 31.07.2019
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CHEMISTRY; COMPOSITIONS BASED THEREON; GENERAL PROCESSES OF COMPOUNDING; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS; MAKING GRANULES OR PREFORMS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; WORKING-UP

Provided is an intermediate base material (incised prepreg) which has exceptional surface quality and mechanical properties when solidified and with which it is possible to obtain a fiber-reinforced plastic having excellent three-dimensional shape conformance properties. This notched prepreg has, in a prepreg that includes a resin and reinforcing fibers oriented in one direction, notches substantially parallel to the orientation direction of the reinforcing fibers (the notches substantially parallel to the orientation direction of the reinforcing fibers are referred to as parallel notches) and notches that cut across the reinforcing fibers (the incisions that cut across the reinforcing fibers are referred to as transverse incisions).