PREPREG MANUFACTURING METHOD AND PREPREG

• Main Authors: TOBISAWA AKIHIKO, URATA YOSHITERU, OBATA HIROSHI
• Format: Patent
• Language: English; Korean
• Published: 01.09.2009
• Subjects: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS; MAKING GRANULES OR PREFORMS; PERFORMING OPERATIONS; PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The invention offers a method of manufacturing a prepreg capable of impregnating a fiber substrate with a liquid resin with a high degree of impregnation, and a prepreg obtained by this method. The invention is a method of manufacturing a prepreg by impregnating a long fiber substrate with a liquid resin using a kiss roller whose bottom portion is immersed in a liquid resin, including a step of impregnating the fiber substrate with a liquid resin from one surface thereof, by conveying the fiber substrate while maintaining contact with a circumferential surface of the kiss roller which is not immersed in resin, and performing this step at least twice in succession, and a prepreg obtained by this manufacturing method.