公开(公告)号：EP4317268A1

公开(公告)日：2024-02-07

申请号：EP22775304.3

申请日：2022-03-16

申请人： Toray Industries, Inc.

发明人： HONDA, Takumi ,  SAKAI, Hidetoshi ,  SENTO, Yuichiro

IPC分类号： C08J5/06

摘要： Provided is a porous structure, made from fiber-reinforced resin, which is lightweight and has excellent mechanical properties. The fiber-reinforced resin comprises a reinforcing fiber base material and a thermoplastic resin, wherein the reinforcing fiber base material includes 50-100 weight% reinforcing fibers having a fiber length of 2-1 0mm, the total amount of reinforcing fibers being 100 weight%, and the thermoplastic resin has a long chain branched structure.

公开(公告)号：EP3677399A1

公开(公告)日：2020-07-08

申请号：EP18852269.2

申请日：2018-08-24

申请人： Toray Industries, Inc.

发明人： SUZUKI, Takafumi ,  SENTO, Yuichiro ,  IMAI, Naokichi ,  HAMAGUCHI, Mitsushige ,  HONMA,Masato

IPC分类号： B29C45/14 ,  B29C70/12 ,  B32B5/28

摘要： The following configuration is adopted for the purpose of solving reduction in strength and rigidity at a weldline which is a problem of an injection molding body, and enabling free design such as thin wall molding or complex shape molding of the injection molding body. That is, there is provided
an integrally molded body in which a substrate for reinforcement (a) having a discontinuous fiber (a1) and a resin (a2) and an injection molding body (b) having a discontinuous fiber (b1) and a resin (b2) are integrated,
the substrate for reinforcement (a) covering a part or all of a weldline of the injection molding body (b) to be integrated with the injection molding body (b),
the ratio of thickness Ta of the substrate for reinforcement (a) to thickness T of a weldline part of the integrally molded body satisfying relational expression:
in a case of Ea ≠ Ebw, Ta / T ≤ Ebw − √ Ea ⋅ Ebw / Ebw − Ea
in a case of Ea = Ebw,
Ta / T ≤ 0.5
wherein, Ta: Thickness of substrate for reinforcement (a),
T: Thickness of weldline part of integrally molded body,
Ea: Flexural modulus of substrate for reinforcement (a) in width direction of weldline, and
Ebw: Flexural modulus of weldline of injection molding body (b) in width direction of weldline.

公开(公告)号：EP3677398A1

公开(公告)日：2020-07-08

申请号：EP18852072.0

申请日：2018-08-24

申请人： Toray Industries, Inc.

发明人： SUZUKI, Takafumi ,  SENTO, Yuichiro ,  IMAI, Naokichi ,  HAMAGUCHI, Mitsushige ,  HONMA, Masato

IPC分类号： B29C45/14 ,  B29C70/20 ,  B32B5/28 ,  B29K105/12 ,  B29L9/00

摘要： In order to solve reduction in strength and rigidity at a weldline which is a problem of an injection molding body, and enable free design such as thin wall molding or complex shape molding of the injection molding body, there is provided an integrally molded body in which a substrate for reinforcement (a) having a discontinuous fiber (a1) and a resin (a2) and an injection molding body (b) having a discontinuous fiber (b1) and a resin (b2) are integrated, in which the substrate for reinforcement (a) has a difference in an orientation angle of the discontinuous fiber (a1) in each of regions obtained by dividing a major axis direction of the substrate for reinforcement (a) into 10 equal parts of within 10°, and the substrate for reinforcement (a) covers a part or all of a weldline of the injection molding body (b) to be integrated with the injection molding body (b).

公开(公告)号：EP4317267A1

公开(公告)日：2024-02-07

申请号：EP22775301.9

申请日：2022-03-16

申请人： Toray Industries, Inc.

发明人： HONDA, Takumi ,  SAKAI, Hidetoshi ,  SENTO, Yuichiro

IPC分类号： C08J5/06

摘要： Provided is a porous structure, made from fiber-reinforced resin, which is lightweight and has excellent mechanical properties. The fiber-reinforced resin comprises a reinforced fiber base material and a thermoplastic resin, wherein the reinforced fiber base material includes 50-100 weight% reinforcing fibers having a fiber length of 2-10mm, the total amount of reinforcing fibers being 100 weight%, and the thermoplastic resin has strain-hardening properties.