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11.发明申请公开(公告)号：US20210291487A1
公开(公告)日：2021-09-23
申请号：US17340183
申请日：2021-06-07
Applicant: Toray Industries, Inc.
Inventor： Yoshiki Takebe , Hiroki Kihara , Noriyuki Hirano
Abstract: A laminate includes a core obtained by impregnating a mat of fibers with a thermoplastic resin (B); and a skin obtained by impregnating continuous fiber(s) with a thermoplastic resin (A), wherein sheet-form intermediate substrates in the laminate have a thermal expansibility, the usable temperature region of said thermoplastic resin (A) and that of said thermoplastic resin (B) overlap over a temperature range of at least 5° C., said thermoplastic resin (A) has a temperature region that does not melt at a lower limit of said usable temperature region, said fibers contained in said mat penetrate through interface layers formed by said thermoplastic resin (A) and said thermoplastic resin (B), and said thermoplastic resin (A) and said thermoplastic resin (B) form interface layers each with a concave-convex shape having a maximum height Ry of not less than 50 μm and an average roughness Rz of not less than 30 μm.
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公开(公告)号：US10947352B2
公开(公告)日：2021-03-16
申请号：US16471949
申请日：2017-12-20
Applicant: TORAY INDUSTRIES, INC.
Inventor： Takashi Fujioka , Yoshiki Takebe , Masato Honma
IPC: C08J5/04 , B29C70/06 , B29K305/00 , B29K307/04 , B29L31/00
Abstract: Provided is a mountain-shaped structure material being excellent in stiffness and lightness. The present invention is a structure material including a resin, reinforced fibers and voids. The structure material has a specific bending stiffness represented as Ec1/3·ρ−1 being 2.5 or more where a bending modulus is Ec and a density is ρ. The structure material has a mountain shape.
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公开(公告)号：US20210039291A1
公开(公告)日：2021-02-11
申请号：US16977862
申请日：2019-03-28
Applicant: Toray Industries, Inc.
Inventor： Yoshiki Takebe , Masato Honma
Abstract: A molded product having both small specific gravity and high stiffness and also suffering few sink marks is described along with a method for the production thereof, where the molded product includes a porous body (A) integrated with an injection molded body (B), the porous body (A) having an apparent density of 0.05 to 0.8 g/cm3, the average thickness (tA) of the porous body (A) and the average thickness (tB) of the injection molded body (B) satisfying the relation tA≥3×tB, and the injection molded body (B) covering at least one face of the porous body (A).
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公开(公告)号：US10908651B2
公开(公告)日：2021-02-02
申请号：US15760735
申请日：2016-09-06
Applicant: TORAY INDUSTRIES, INC.
Inventor： Masato Honma , Yoshiki Takebe , Naokichi Imai , Takashi Fujioka
Abstract: An electronic device housing includes: a bottom cover; a top cover; a partition structure that is disposed in a space divided by the bottom cover and the top cover and has an opening; and a heat generation member. The partition structure is joined to the bottom cover or the top cover to form a hollow structure, and the heat generation member is disposed on a surface of the partition structure on the hollow structure side.
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15.发明授权公开(公告)号：US11969984B2
公开(公告)日：2024-04-30
申请号：US17340183
申请日：2021-06-07
Applicant: Toray Industries, Inc.
Inventor： Yoshiki Takebe , Hiroki Kihara , Noriyuki Hirano
CPC classification number: B32B5/26 , B32B27/32 , B32B37/06 , B32B37/10 , B32B2250/40 , B32B2260/023 , B32B2260/046 , B32B2307/538 , B32B2605/003
Abstract: A laminate includes a core obtained by impregnating a mat of fibers with a thermoplastic resin (B); and a skin obtained by impregnating continuous fiber(s) with a thermoplastic resin (A), wherein sheet-form intermediate substrates in the laminate have a thermal expansibility, the usable temperature region of said thermoplastic resin (A) and that of said thermoplastic resin (B) overlap over a temperature range of at least 5° C., said thermoplastic resin (A) has a temperature region that does not melt at a lower limit of said usable temperature region, said fibers contained in said mat penetrate through interface layers formed by said thermoplastic resin (A) and said thermoplastic resin (B), and said thermoplastic resin (A) and said thermoplastic resin (B) form interface layers each with a concave-convex shape having a maximum height Ry of not less than 50 μm and an average roughness Rz of not less than 30 μm.
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Patent Agency Ranking
公开(公告)号：US20240066758A1
公开(公告)日：2024-02-29
申请号：US18270013
申请日：2021-12-21
Applicant: Toray Industries, Inc.
Inventor： Miho Onodera , Yoshiki Takebe , Yuta Naito , Jun Misumi , Yoshifumi Nakayama , Masato Honma
CPC classification number: B29B11/16 , B32B5/10 , C08J5/243 , B29K2101/10
Abstract: A problem to be solved by the present invention is to provide a prepreg and an integrally molded article, wherein the prepreg exhibits suitable flexibility and adhesiveness, excels in formability on a complicated mold face and adhesion to a mold face, causes no positional shift, and can be efficiently reinforced and stiffened at an intended position. A main object of the present invention is to provide a prepreg including (A) reinforcing fibers, (B) a thermosetting resin, and (C) a thermoplastic resin, wherein the (C) thermoplastic resin exists in at least a part of a face of the prepreg, and wherein the prepreg satisfies the condition [I], and satisfies the condition [II] or the condition [III]: [I]: the (B) thermosetting resin has a peak in the temperature range of more than 100° C. and 180° C. or less on a loss tangent (tan δ) curve measured under isokinetic heating by dynamic mechanical analysis (DMA); [II]: on a loss angle δ curve obtained by measuring the prepreg isothermally by dynamic mechanical analysis (DMA), the loss angle δ curve has a point representing the maximum value, and has a point which represents a loss angle δ value 5° or more smaller than the maximum value, and which is on the earlier time side of the point representing the maximum value; and [III]: even if, on the loss angle δ curve obtained by measuring the prepreg isothermally by dynamic mechanical analysis (DMA), the loss angle δ curve has a point representing the maximum value, the loss angle δ curve does not have a point which represents a loss angle δ value 5° or more smaller than the maximum value, and which is on the earlier time side of the point representing the maximum value, or the loss angle δ curve does not have a point representing the maximum value, and has a descendingly behaving section in which the loss angle δ value becomes 5° or more smaller at a slope of −1.4°/minute or more.
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公开(公告)号：US11590716B2
公开(公告)日：2023-02-28
申请号：US17040757
申请日：2019-03-27
Applicant: Toray Industries, Inc.
Inventor： Kotaro Shinohara , Masato Honma , Yoshiki Takebe
Abstract: A method is described for manufacturing a molded product having a recessed/protruding part from a molded substrate (A) including reinforcing fibers and a matrix resin by press molding, the method comprising: a step (I) of placing the molded substrate (A) between molds including an upper mold and a lower mold and deforming the molded substrate (A) in an in-plane direction by heating and pressing the molds; and a step (II) of deforming the molded substrate (A) in an out-of-plane direction by depressurizing the molds subsequent to the step (I), wherein a deformation rate ratio T represented by the following formula (1) is within a range of 0.1 to 1: T=X/Z (1) where X and Z are as defined.
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公开(公告)号：US20220212426A1
公开(公告)日：2022-07-07
申请号：US17604489
申请日：2020-05-15
Applicant: Toray Industries, Inc.
Inventor： Takashi Fujioka , Naokichi Imai , Masato Honma , Yoshiki Takebe , Kotaro Shinohara
Abstract: A fiber-reinforced plastic substrate is described in which a plurality of resins having different properties are firmly compounded and that includes components [A], [B], and [C]: [A] reinforcing fibers; [B] thermoplastic resin (b); and [C] thermoplastic resin (c), wherein the component [A] is arranged in one direction, in the fiber-reinforced plastic substrate, a resin area including the component [B] and a resin area including the component [C] are present, the resin area including the component [B] is present on a surface of one side of the fiber-reinforced plastic substrate, and a distance Ra(bc) between Hansen solubility parameters of the component [B] and the component [C] satisfies formula (1): Ra(bc)={4(δDB−δDC)2+(δPB−δPC)2+(δHB−δHC)2}1/2≥8 wherein Ra(bc), δDB, δDC, δPB, δPC, δHB and δHC are as defined.
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公开(公告)号：US11312825B2
公开(公告)日：2022-04-26
申请号：US16471782
申请日：2017-12-20
Applicant: TORAY INDUSTRIES, INC.
Inventor： Yoshiki Takebe , Takashi Fujioka , Masato Honma
Abstract: Provided is a structure having excellent flexibility represented by elastic restoring from compression or tensile elongation at break, and excellent lightness. A structure according to the present invention includes reinforced fibers, first plastic, and second plastic that exhibits rubber elasticity at room temperature, the reinforced fibers being discontinuous fibers, and the first plastic and/or the second plastic coating a crossing point between the reinforced fibers in contact with each other.
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20.发明授权公开(公告)号：US11072098B2
公开(公告)日：2021-07-27
申请号：US16471228
申请日：2017-12-20
Applicant: TORAY INDUSTRIES, INC.
Inventor： Takashi Fujioka , Yoshiki Takebe , Masato Honma
Abstract: A method for manufacturing a composite structure in which a first member and a structure material as a second member are integrated, the method including: an arrangement step of arranging a structure precursor including a resin and reinforced fibers in a mold made of the first member; a heating step of heating the structure precursor to equal to or higher than a temperature at which a storage elastic modulus (G′) of the structure precursor is less than 1.2×108 Pa; a shaping step of expanding the structure precursor by heating to form a structure material as a second member, and bringing the structure material into close contact with the first member to obtain a composite structure; and a cooling step of cooling the composite structure.
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