IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0742898
(2003-12-23)
|
우선권정보 |
JP-0101617 (1999-04-08) |
발명자
/ 주소 |
- Mitani, Kazutami
- Goto, Kazuya
|
출원인 / 주소 |
- Mitsubishi Rayon Co., Ltd.
|
대리인 / 주소 |
Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
|
인용정보 |
피인용 횟수 :
9 인용 특허 :
2 |
초록
▼
A preform can be molded by resin transfer molding and yields a composite material having excellent strength and excellent interlaminar debonding resistance. The preform, which is for producing a fiber-reinforced composite, comprises layers of laminated structure of a reinforcing material comprising
A preform can be molded by resin transfer molding and yields a composite material having excellent strength and excellent interlaminar debonding resistance. The preform, which is for producing a fiber-reinforced composite, comprises layers of laminated structure of a reinforcing material comprising reinforcement fibers and has, between these layers, a layer comprising a thermoplastic resin and having space so as not to inhibit a liquid resin from flowing therethrough. The preform is molded to yield a fiber-reinforced composite material.
대표청구항
▼
1. A preform for a composite material, comprising at least two layers of a reinforcing material comprising a reinforcement fiber and, between the layers, a thermoplastic resin layer having spaces to allow liquid resin to flow through the preform,wherein the layers of the preform are laminated, andwh
1. A preform for a composite material, comprising at least two layers of a reinforcing material comprising a reinforcement fiber and, between the layers, a thermoplastic resin layer having spaces to allow liquid resin to flow through the preform,wherein the layers of the preform are laminated, andwherein the thermoplastic resin layer has a weight per square meter of 1 to 50 g/m 2 . 2. The preform according to claim 1, wherein the thermoplastic resin layer comprises a thermoplastic resin fiber thread. 3. A preform for a composite material, comprising at least two layers of a reinforcing material comprising a reinforcement fiber, wherein a plurality of thermoplastic resin threads are adhered or woven approximately parallel to each other on a surface of the reinforcing material, andwherein the thermoplastic resin threads are present in a weight per square meter of 1 to 50 g/m 2 . 4. The preform according to claim 1, wherein the reinforcing material is a woven fabric. 5. The preform according to claim 1, wherein the thermoplastic resin is at least one selected from the group consisting of polyamides and polyimides. 6. A fiber-reinforced composite material formed by molding the preform according to claim 1. 7. The preform according to claim 2, wherein the layer which is made of thermoplastic resin and has space so that flow of liquid resin to be injected for molding composite material is uninhibited, has a weight per square meter of 1 to 50 g/m 2 . 8. The preform according to claim 3, wherein the reinforcing material is a woven fabric. 9. The preform according to claim 3, wherein the thermoplastic resin is at least one selected from the group consisting of polyamides and polyimides. 10. A fiber-reinforced composite material formed by molding the preform according to claim 3. 11. A fiber-reinforced composite material comprising the preform according to claim 1 and a cured resin, wherein the cured resin is present in each layer. 12. A fiber-reinforced composite material comprising the preform according to claim 3 and a cured resin, wherein the cured resin is present in each layer. 13. The fiber-reinforced composite material according to claim 11, wherein the cured resin is an epoxy. 14. The fiber-reinforced composite material according to claim 12, wherein the cured resin is an epoxy. 15. The preform according to claim 1, wherein the thermoplastic resin layer is nylon 12. 16. The preform according to claim 3, wherein the thermoplastic resin threads are nylon 12. 17. The preform according to claim 1, wherein the reinforcement fiber is a carbon fiber. 18. The preform according to claim 3, wherein the reinforcement fiber is a carbon fiber. 19. The preform according to claim 1, wherein the thermoplastic resin layer is a uniaxial, biaxial or triaxial plane woven fabric. 20. The preform for a composite material comprising at least two layers of a reinforcing material comprising a reinforcement fiber and, between the layers, a thermoplastic resin layer having spaces to allow liquid resin to flow through the preform,wherein the layers of the preform are laminated, andwherein the thermoplastic resin layer is a porous film.
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