Reinforcing fiber bundle base material, production method therefor, fiber-reinforced thermoplastic resin material using same, and production method therefor
AssigneeToray Industries, Inc.
InventorsMitsuki Fuse, Masaru Tateyama, Hiroshi Hirano, Satoshi Seike, Akihiko Matsui, Kazuma Ura
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Abstract
A reinforcing fiber bundle base material has a reinforcing fiber bundle surface to which a sizing agent adheres, wherein a reinforcing fiber bundle has a fiber number per unit width of 600 fibers/mm or more and less than 1,600 fibers/mm while the reinforcing fiber bundle has a drape level of 120 mm or more and 240 mm or less.
Claims22
-21. (canceled)
A reinforcing fiber bundle base material having a reinforcing fiber bundle surface to which a sizing agent adheres, wherein a reinforcing fiber bundle has a fiber number per unit width of 600 fibers/mm or more and less than 1,600 fibers/mm while the reinforcing fiber bundle has a drape level of 120 mm or more and 240 mm or less.
A method of producing reinforcing fiber bundle base material, comprising steps (1) and (2),
- the step (1) of widening a reinforcing fiber bundle consisting of a plurality of single yarns,
- the step (2) of performing a heat treatment after adding a sizing agent made of a water-soluble polyamide to the widened reinforcing fiber bundle.
A method of producing fiber-reinforced thermoplastic resin forming material, comprising steps (1) to (4),
- the step (1) of widening a reinforcing fiber bundle consisting of a plurality of single yarns,
- the step (2) of performing a heat treatment after adding a sizing agent made of a water-soluble polyamide to the widened reinforcing fiber bundle,
- the step (3) of impregnating a sizing agent-added reinforcing fiber bundle with a melted thermoplastic resin,
- the step (4) of cutting the thermoplastic resin-impregnated reinforcing fiber bundle to prepare a fiber-reinforced thermoplastic resin forming material.
Dependencies are inferred from the claim text.