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    PREPREG, LAMINATE, AND MOLDING
    2.
    发明申请
    PREPREG, LAMINATE, AND MOLDING 有权

    公开(公告)号：US20220315762A1

    公开(公告)日：2022-10-06

    申请号：US17611693

    申请日：2020-05-15

    申请人： Toray Industries, Inc.

    发明人： Kyoko Shinohara ,  Masato Honma ,  Jun Misumi

    IPC分类号： C08L79/08

    摘要： The present invention has an object of providing a prepreg for producing a laminate suitable as a structural material, and a laminate, which have excellent combustion resistance, compressive strength and interlaminar fractural toughness values, and can be firmly integrated with another structural member by welding. The present invention is a prepreg including structural components: [A] reinforcing fibers, [B] a thermosetting resin, and [C] a thermoplastic resin [C], wherein [B] includes at least one resin selected from a cyanate ester resin having an average cyanate equivalent of 220 or less, a bismaleimide resin having an average maleimide equivalent of 210 or less, and a benzoxazine resin having an average oxazine equivalent of 300 or less, [C] is present on a surface of the prepreg, and the reinforcing fibers [A] are present which are included in a resin area including [B] and a resin area including [C] across an interface between the two resin areas.

    PREPREG, LAMINATE, AND MOLDING
    3.
    发明申请
    PREPREG, LAMINATE, AND MOLDING 有权

    公开(公告)号：US20220251317A1

    公开(公告)日：2022-08-11

    申请号：US17608237

    申请日：2020-05-15

    申请人： Toray Industries, Inc.

    发明人： Jun Misumi ,  Masato Honma ,  Kyoko Shinohara ,  Noriyuki Hirano

    IPC分类号： C08J5/24

    摘要： An object of the present invention is to provide a prepreg and a laminate for producing a laminate suitable as a structural material, which have excellent joining strength and interlaminar fractural toughness values and can be firmly integrated with another structural member by welding. The present invention provides a prepreg including the following structural components, [A] reinforcing fibers, [B] an epoxy resin, and [C] a thermoplastic resin, wherein all epoxy resins included in [B] have an average epoxy value of 2.0 meq./g or more and 5.0 meq./g or less, [C] is present in a surface of the prepreg, and the reinforcing fibers [A] are present, which are included in a resin area including [B] and a resin area including [C] across an interface between the two resin areas.

    PREPREG, LAMINATE, AND INTEGRATED PRODUCT
    4.
    发明申请
    PREPREG, LAMINATE, AND INTEGRATED PRODUCT 有权

    公开(公告)号：US20220388289A1

    公开(公告)日：2022-12-08

    申请号：US17783700

    申请日：2020-11-20

    申请人： Toray Industries, Inc.

    发明人： Jun Misumi ,  Masato Honma ,  Kyoko Shinohara

    IPC分类号： B32B27/08 ,  B32B7/02 ,  B32B7/10 ,  B32B27/20 ,  B32B27/38 ,  C08J5/24

    摘要： A prepreg includes [A], [B], and [C] described below. The [B] further comprises [B′]; a ratio of a mole number of an active hydrogen contained in [B′] to a mole number of an epoxy group in an epoxy resin contained in [B] is in a range of 0.6 to 1.1 both inclusive; [C] is present on a surface of the prepreg; and [A] that crosses over a boundary surface between a resin region containing [B] and a resin region containing [C] and that is in contact with both resin regions is present: [A] a reinforcing fiber; [B] an epoxy resin composition; an amine compound; and [C] a thermoplastic resin composition.

    PREPREG, LAMINATE, AND MOLDING
    5.
    发明申请
    PREPREG, LAMINATE, AND MOLDING 有权

    公开(公告)号：US20220324184A1

    公开(公告)日：2022-10-13

    申请号：US17607981

    申请日：2020-05-15

    申请人： Toray Industries, Inc.

    发明人： Jun Misumi ,  Masato Honma ,  Kyoko Shinohara ,  Noriyuki Hirano

    IPC分类号： B29C70/00 ,  B29C70/18 ,  B29C70/88

    摘要： An object of the present invention is to provide a prepreg and a laminate for producing a laminate suitable as a structural material, which have excellent compressive strength and interlaminar fractural toughness values, and can be firmly integrated with another structural member by welding. The present invention provides a prepreg including the following structural components [A] reinforcing fibers, [B] a thermosetting resin, and [C] a thermoplastic resin, in which [B] has a rubbery state elastic modulus of 10 MPa or more at a temperature obtained by adding 50° C. to a glass transition temperature in a state in which a degree of cure is 90% or more, [C] is present in a surface of the prepreg, and the reinforcing fibers [A] are present, which are included in a resin area including {B] and a resin area including [C] across an interface between the two resin areas.

    PREPREG, LAMINATE, AND INTEGRATED PRODUCT
    8.
    发明申请
    PREPREG, LAMINATE, AND INTEGRATED PRODUCT 有权

    公开(公告)号：US20230001651A1

    公开(公告)日：2023-01-05

    申请号：US17783103

    申请日：2020-11-20

    申请人： Toray Industries, Inc.

    发明人： Kyoko Shinohara ,  Masato Honma ,  Jun Misumi

    IPC分类号： B29C70/00 ,  B29C70/50 ,  B29C70/14

    摘要： A prepreg includes composition elements [A], [B], and [C] described below,
    [A] a reinforcing fiber,
    [B] a thermosetting resin, and
    [C] a thermoplastic resin.
    [B] contains a thermoplastic resin having an aromatic ring with an amount of 10% or more by mass, a resin region containing [B] is present on one surface of the prepreg, a resin region containing [C] is present on another surface of the prepreg, and [A] that crosses over a boundary surface between the resin region containing [B] and the resin region containing [C] and that is in contact with both resin regions is present.