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    SPACE FILLING MATERIAL AND SPACE FILLING STRUCTURE, AND METHODS FOR USING THOSE
    1.
    发明申请
    SPACE FILLING MATERIAL AND SPACE FILLING STRUCTURE, AND METHODS FOR USING THOSE 有权

    公开(公告)号：US20210394406A1

    公开(公告)日：2021-12-23

    申请号：US17464744

    申请日：2021-09-02

    Applicant: KURARAY CO., LTD.

    Inventor： Satoshi KATSUYA ,  Ryokei ENDO ,  Yosuke WASHITAKE ,  Shunsuke SUIKO

    IPC: B29C44/34 ,  D04H1/488

    Abstract: Provided are a space filling material and a space filling structure capable of filling a predetermined space for various purposes, and method for using those. A space filling material (11) includes reinforcing fibers as an expansion material and a resin. The reinforcing fibers form a plurality of intersections and are bonded with the resin at at least one of the intersections. Heating of the space filling material causes an expansion stress in at least a thickness direction (X) such that the space filling material fills a predetermined space (13). For example, the space filling material may contain the resin at a volume ratio of 15 to 95 vol % based on a total volume of the reinforcing fibers and the resin.

    POLYVINYL ALCOHOL FIBER
    4.
    发明申请
    POLYVINYL ALCOHOL FIBER 有权

    公开(公告)号：US20210292933A1

    公开(公告)日：2021-09-23

    申请号：US17285163

    申请日：2019-10-25

    Applicant: KURARAY CO., LTD.

    Inventor： Yoshimi NONAKA ,  Yosuke WASHITAKE ,  Shinji SEKIYA ,  Ryokei ENDO

    IPC: D01F6/50 ,  D01F1/10

    Abstract: Polyvinyl alcohol-based fibers contain a polyvinyl alcohol-based polymer and an adsorbent. With respect to 100 parts by mass of the polyvinyl alcohol-based polymer, 30 to 500 parts by mass of the adsorbent is contained. The polyvinyl alcohol-based fibers have a crystallinity of polyvinyl alcohol ranging from 30% to 60%, a diameter ranging from 5 μm to 1000 μm, and a specific surface area ranging from 10 m2/g to 2000 m2/g.

    AMORPHOUS HEAT-FUSIBLE FIBER, FIBER STRUCTURE, AND HEAT-RESISTANT MOLDED ARTICLE
    6.
    发明申请
    AMORPHOUS HEAT-FUSIBLE FIBER, FIBER STRUCTURE, AND HEAT-RESISTANT MOLDED ARTICLE 审中-公开
    非晶可热纤维，纤维结构和耐热成型品

    公开(公告)号：US20150167199A1

    公开(公告)日：2015-06-18

    申请号：US14634125

    申请日：2015-02-27

    Applicant: KURARAY CO., LTD.

    Inventor： Ryokei ENDO ,  Yosuke WASHITAKE ,  Jun ARAMAKI

    IPC: D01F6/84 ,  D01F6/74

    CPC classification number: D01F6/84 ,  B29C43/003 ,  C08L67/02 ,  C08L79/08 ,  D01F6/74 ,  D01F6/92 ,  D01F6/94 ,  D04H1/55 ,  D10B2331/04 ,  D10B2331/14 ,  D10B2401/04

    Abstract: Provided are a heat-fusible fiber having excellent heat resistance, flame retardancy and dimensional stability; a fiber structure comprising the heat-fusible fiber; and a molded article produced by applying a heat fusion treatment to the fiber structure and having excellent heat resistance. The heat-fusible fiber comprises an amorphous PES type polymer (A) not substantially having a melting point and an amorphous PEI type polymer (B) in the mixture ratio (weight) of (A)/(B)=5/95 to 95/5, the fiber having a single glass transition temperature in the range between 80° C. and 200° C., and being amorphous. The fiber structure comprises 10% by weight or higher of the amorphous heat-fusible fiber. The molded article comprises at least a fiber structure comprising 10% by weight or higher of the amorphous heat-fusible fiber, to be fusion-bonded at a temperature higher than the glass transition temperature of the amorphous heat-fusible fiber.

    Abstract translation: 提供具有优异的耐热性，阻燃性和尺寸稳定性的热熔纤维; 包括所述热熔纤维的纤维结构; 以及通过对纤维结构进行热熔融处理并具有优异的耐热性而制造的成型品。 热熔融纤维包含基本上不具有熔点的无定形PES型聚合物（A）和（A）/（B）= 5/95〜95的混合比（重量）的无定形PEI型聚合物（B） / 5，纤维的单一玻璃化转变温度在80℃和200℃之间的范围内，并且是无定形的。 纤维结构体包含10重量％以上的非晶态热熔纤维。 成型体至少含有10重量％以上的无定形热熔性纤维的纤维结构体，其在比非晶态热熔融纤维的玻璃化转变温度高的温度下熔合。

    AMORPHOUS EPOXY FIBER, FIBER STRUCTURE, AND MOLDED BODY
    8.
    发明申请
    AMORPHOUS EPOXY FIBER, FIBER STRUCTURE, AND MOLDED BODY 有权

    公开(公告)号：US20220363810A1

    公开(公告)日：2022-11-17

    申请号：US17870982

    申请日：2022-07-22

    Applicant: KURARAY CO., LTD.

    Inventor： Yuki INOUE ,  Takeshi TSUDAKA ,  Ryokei ENDO

    IPC: C08G59/24 ,  D01F6/66 ,  D01D5/08 ,  C08K7/02

    Abstract: Provided is an amorphous epoxy fiber excellent in dimensional stability, a fiber structure comprising at least in part amorphous epoxy fibers, and a molded body formed by melting said fibers. The amorphous epoxy fiber has a birefringence value of 0.005 or lower. For example, the amorphous epoxy fiber may include an amorphous epoxy resin represented by the following general formula: in which, X is a residue of a bivalent phenol and n is 20 or greater (preferably 20 to 300, more preferably 40 to 280, still more preferably 50 to 250). The amorphous epoxy fiber may have an average fiber diameter of single fibers of 40 μm or smaller.

    LIGHT-EMITTING FIBER
    10.
    发明申请
    LIGHT-EMITTING FIBER 有权

    公开(公告)号：US20210382228A1

    公开(公告)日：2021-12-09

    申请号：US17286554

    申请日：2019-10-23

    Applicant: KURARAY CO., LTD.

    Inventor： Takeshi TSUDAKA ,  Yosuke WASHITAKE ,  Ryokei ENDO ,  Shunsuke SUIKO

    IPC: G02B6/02 ,  F21V8/00 ,  G02B1/04

    Abstract: A light-emitting fiber includes a core and a cladding and is configured to emit light through a side surface of the fiber. A resin used for the core is at least one selected from the group consisting of polymethyl methacrylate, polymethyl methacrylate copolymers, polystyrene, polycarbonates, polyorganosiloxanes, and norbornene, and a resin used for the cladding is fluorine resin. The light-emitting fiber has a fiber diameter of 95 μm or less.

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