MANUFACTURE OF LONG FIBER REINFORCED THERMOPLASTIC RESIN COMPOSITION

摘要

PURPOSE:To improve the impregnating property of resin by a method wherein organic solvent having affinity for the resin is mixed in the resin in the method to manufacture long fiber reinforced product by impregnating reinforcing fiber bundles with thermoplastic resin with high melt viscosity. CONSTITUTION:Reinforcing fiber bundles 1 are impregnated with resin by passing the reinforcing fiber bundles 1 through a resin bath 3 charged with resin composition consisting in mixing high melt viscosity resin such as polyamide- imide, polyether imide, polycarbonate or the like with solvent having affinity for said resin. A long body is formed by pressing said resin-impregnated reinforcing fiber bundles 5 with stainless steel endless belts 9 driven by heating rollers 6 respectively equipped with a heater 8 and cooling rollers 7 and further the solvent is evaporated at a hot air heating furnace 11 in order to turn into finished long body 13. The impregnating property of the resin is improved by utilizing the resin composition containing the solvent having affinity for the resin.