Processes for producing perform and FRP
AssigneeToray Industries, Inc.
InventorsNobuo Asahara, Hiroshi Odani, Eisuke Wadahara
Life of this patent
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Abstract
A preform, formed with a plurality of reinforcing fiber substrates stacked to each other and each made of at least reinforcing fiber yarns, has a resin material, whose main component is a thermoplastic resin, interlaminated between the layers of the reinforcing fiber substrates in the preform, and has through holes extending through a plurality of the reinforcing fiber substrates in the thickness direction of the preform; an FRP molded using this preform; and processes for producing these. By improving the impregnability in the thickness direction of the preform, an FRP excellent both in various mechanical properties and in matrix resin impregnation and stabler in quality can be produced with high productivity.
Claims13
-19. (canceled)
A process for producing a preform comprising:
- a stacking step for forming a plurality of reinforcing fiber substrates each made of at least reinforcing fiber yarns and stacking a plurality of these substrates in a preform mold;
- and
- a penetrating step for forming through holes which extend through a plurality of said reinforcing fiber substrates in a thickness direction of a stacked body.
Dependencies are inferred from the claim text.