초록 ▼

Depositing a thermoplastic resin powder in between the individual fibers of a reinforcing continuous fiber bundle and subsequently applying a solution of a binder resin dissolved in a solvent to the resulting reinforcing continuous fiber bundle, the thermoplastic resin powder is fixed in between the

Depositing a thermoplastic resin powder in between the individual fibers of a reinforcing continuous fiber bundle and subsequently applying a solution of a binder resin dissolved in a solvent to the resulting reinforcing continuous fiber bundle, the thermoplastic resin powder is fixed in between the individual fibers via the binder resin which concurrently works to bind the individual fibers together. Then, the solvent of the binder resin is substantially removed from the resulting reinforcing continues fiber bundle within a temperature zone not above the melting point or flow point of the thermoplastic resin powder. In the molding material produced by the method, the individual fibers of the reinforcing continuous fiber bundle, the individual fibers and the thermoplastic resin powder, and the individual thermoplastic resin powders are independently fixed together, all in a pin-point fashion via the binder resin, so the molding material substantially does not contain the solvent of the binder resin. The molding material of the present invention is non-adhesive with draping properties, good handleability, excellent lay-up workability and outstanding moldability, in which the dissociation of the thermoplastic resin powder is prevented. Those molded from the molding material of the present invention have great composite properties and excellent appearance.

대표청구항 ▼

[ What is claimed is:] [1.] A molding material comprising a reinforcing fiber bundle, a thermoplastic resin powder interspersed among individual fibers of said bundle and a binder resin, wherein said individual fibers of said fiber bundle are fixed together, wherein said individual fibers and the th

[ What is claimed is:] [1.] A molding material comprising a reinforcing fiber bundle, a thermoplastic resin powder interspersed among individual fibers of said bundle and a binder resin, wherein said individual fibers of said fiber bundle are fixed together, wherein said individual fibers and the thermoplastic resin powder are fixed together, and wherein said individual thermoplastic resin powders are fixed together, all at pin-point binding sites by the binder resin, said molding material being non-adhesive and drapable and containing substantially no solvent, and said molding material being produced by a process comprising:depositing the thermoplastic resin powder in-between the individual fibers of said fiber bundle;then applying a solution of the binder resin to said bundle containing the deposited thermoplastic resin powder; andremoving substantially all the solvent of the binder resin solution from the resulting binder resin-applied reinforcing fiber bundle within a temperature zone at a temperature not above the melting point or flow point of the thermoplastic resin powder.