公开(公告)号：EP4215357A1

公开(公告)日：2023-07-26

申请号：EP21869285.3

申请日：2021-09-09

Applicant: Mitsui Chemicals, Inc.

Inventor： MIZUMOTO, Kazuya ,  ISAKI, Takeharu ,  MIYATA, Atsushi ,  KANDA, Yoshihiko ,  FUJIHARA, Kazutoshi

IPC: B32B5/28 ,  B29B15/12 ,  B29C70/16 ,  B29C70/30

Abstract: The present invention addressed the problem of providing a molded body which has a high performance of reducing energy caused by the application of a load, and which is obtained from a fiber-reinforced resin containing reinforcing fibers arranged while aligned in one direction. To solve the problem, the present invention relates to a molded body, including a reinforced layer formed by layering fiber-reinforced resin layers containing a plurality of reinforcing fibers arranged while aligned in one direction and a matrix resin impregnated with the reinforcing fibers. In the molded body, the reinforced layer has a plurality of alignment shifted layers, which are fiber-reinforced resin layers in which the shift angle, i.e., the angle formed by the reinforcing fibers with respect to the longitudinal direction of the reinforced layer, is 25° to 65° or -65° to -25°.

公开(公告)号：EP4434874A1

公开(公告)日：2024-09-25

申请号：EP22892697.8

申请日：2022-11-04

Applicant: Mitsui Chemicals, Inc.

Inventor： MIZUMOTO, Kazuya ,  KANDA, Yoshihiko

IPC: B64C1/00 ,  B64C11/20 ,  B64C27/473 ,  B64C27/615 ,  B64C39/02 ,  B64F5/10

CPC classification number: B64C27/473 ,  B64F5/10 ,  B64C27/615 ,  B64C39/02 ,  B64C1/00 ,  B64C11/20

Abstract: The present invention provides a blade in which the specific rigidity of a flap part is further increased. This blade has a thick body part and a thin flap part integrally formed in the rear end of the body part. The flap part has a skin material containing a fiber-reinforced thermoplastic resin, and a core material containing a thermoplastic resin foam filled inside the skin material.