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    SPUNBONDED NON-WOVEN FABRIC AND METHOD FOR MANUFACTURING SAME
    1.
    发明申请
    SPUNBONDED NON-WOVEN FABRIC AND METHOD FOR MANUFACTURING SAME 有权

    公开(公告)号：US20210040298A1

    公开(公告)日：2021-02-11

    申请号：US17075258

    申请日：2020-10-20

    Applicant: IDEMITSU KOSAN CO., LTD.

    Inventor： Yohei KOORI ,  Tomoaki TAKEBE ,  Yutaka MINAMI ,  Takumi SUGIUCHI

    IPC: C08L23/12 ,  D04H3/007 ,  D04H3/14 ,  D04H1/544 ,  D04H1/4291

    Abstract: A nonwoven fabric formed of an olefin-based resin composition (I) containing an olefin-based polymer (i) satisfying specific requirements; a spunbond nonwoven fabric obtained by melt-extruding and molding the olefin-based resin composition (I) at a resin temperature of 220° C. or lower, and a method for producing it; a multilayer nonwoven fabric containing the spunbond nonwoven fabric; a nonwoven fabric and a multilayer nonwoven fabric including composite fibers containing an olefin-based resin composition (II) containing an olefin-based polymer (ii) satisfying specific requirements; and a fiber product using the spunbond nonwoven fabric, the nonwoven fabric of composite fibers, or the multilayer nonwoven fabric.

    POLYPROPYLENE-BASED RESIN COMPOSITION, AND FIBER AND NONWOVEN FABRIC USING SAME
    3.
    发明申请
    POLYPROPYLENE-BASED RESIN COMPOSITION, AND FIBER AND NONWOVEN FABRIC USING SAME 审中-公开

    公开(公告)号：US20200157327A1

    公开(公告)日：2020-05-21

    申请号：US16632752

    申请日：2018-07-23

    Applicant: IDEMITSU KOSAN CO.,LTD.

    Inventor： Mari YABE ,  Takumi SUGIUCHI ,  Yutaka MINAMI ,  Tomoaki TAKEBE

    IPC: C08L23/12 ,  D04H3/10 ,  D01F8/06 ,  D04H3/007 ,  D04H3/14 ,  D01F1/10 ,  D04H3/147 ,  D01F6/06

    Abstract: The present invention relates to [1] a polypropylene-based resin composition satisfying the following requirements (1) and (2) in a differential molecular weight distribution curve which is obtained from measurement by the gel permeation chromatography using polystyrene as a conversion standard, and in which the abscissa represents a logarithmic value log(M) of a molecular weight M, and the ordinate represents a dw/d log(M) value obtained by differentiating a concentration fraction w by the logarithmic value log(M) of the molecular weight: (1) In the differential molecular weight distribution curve, a value obtained by integrating the dw/d log(M) values in the range of (5.5≤log(M)) is 25% or less relative to a value obtained by integrating the dw/d log(M) values over the entire range of log(M); and (2) In the differential molecular weight distribution curve, a value obtained by integrating the dw/d log(M) values in the range of (log(M)≤4.5) is more than 10% relative to a value obtained by integrating the dw/d log(M) values over the entire range of log(M). The present invention also relates to [2] a polypropylene-based resin composition having a melt flow rate (MFR) of 10 to 500 g/10 min and a half-crystallization time of more than 0.05 seconds; and further relates to [3] a polypropylene-based resin composition containing 40 to 990/% by mass of a polypropylene-based resin (A) having a melting point (Tm-D) of higher than 120° C., 0.5 to 59.5% by mass of a polypropylene-based resin (B-1) having a melting endotherm (ΔH-D) of 0 to 80 J/g, and 0.5 to 59.5% by mass of a wax (B-2).

    ELASTIC NONWOVEN FABRIC, PROCESS FOR PRODUCING THE SAME, AND TEXTILE PRODUCT COMPRISING THE ELASTIC NONWOVEN FABRIC
    6.
    发明申请
    ELASTIC NONWOVEN FABRIC, PROCESS FOR PRODUCING THE SAME, AND TEXTILE PRODUCT COMPRISING THE ELASTIC NONWOVEN FABRIC 审中-公开
    弹性非织造布，其制造方法以及包含弹性非织造织物的纺织品

    公开(公告)号：US20170051444A1

    公开(公告)日：2017-02-23

    申请号：US15343934

    申请日：2016-11-04

    Applicant: Idemitsu Kosan Co., Ltd.

    Inventor： Tomoaki TAKEBE ,  Yutaka MINAMI ,  Toshitaka KANAI

    IPC: D04H3/007 ,  D01F1/10 ,  D04H3/16 ,  D01F8/06 ,  D01F6/46

    CPC classification number: D04H3/007 ,  D01F1/10 ,  D01F6/46 ,  D01F8/06 ,  D04H1/4291 ,  D04H1/4382 ,  D04H3/147 ,  D04H3/16 ,  D10B2321/022 ,  Y10T442/601

    Abstract: (1) An elastic nonwoven fabric and a fiber product using the elastic nonwoven fabric, the elastic nonwoven fabric containing a crystalline resin composition containing low crystalline polypropylene and high crystalline polypropylene, the low crystalline polypropylene satisfying items (a) and (b) below, and a crystallization temperature (Tc) of the crystalline resin composition measured with a differential scanning calorimeter (DSC) being from 20 to 100° C.: (a) a melting point (Tm-D) being from 0 to 120° C., which is defined as a peak top of a peak observed on the most high temperature side of a melt endothermic curve obtained by maintaining at −10° C. for 5 minutes and increasing in temperature at 10° C. per minute in a nitrogen atmosphere with a differential scanning calorimeter (DSC); and (b) a stereoregularity index ([mm]) being from 50 to 90% by mol; (2) an elastic nonwoven fabric and a fiber product using the elastic nonwoven fabric, the elastic nonwoven fabric being produced by using a crystalline resin composition containing low crystalline polypropylene satisfying items (c) to (h) below, and a releasing agent: (c) [mmmm]=20 to 60% by mol; (d) [rrrr]/(1−[mmmm])≦0.1; (e) [rmrm]>2.5% by mol; (f) [mm]×[rr]/[mr]2≦2.0; (g) mass average molecular weight (Mw)=10,000 to 200,000; and (h) molecular weight distribution (Mw/Mn)

    Abstract translation: （3）弹性无纺布和使用该弹性无纺布的纤维制品，含有满足（c）〜（h）的低结晶性聚丙烯的含有核/壳型复合纤维的弹性无纺布具有优异的弹性恢复性和令人愉快的质感 没有粘性。

    (METH)ACRYLATE COMPOSITION
    7.
    发明申请
    (METH)ACRYLATE COMPOSITION 审中-公开
    （METH）丙烯酸酯组合物

    公开(公告)号：US20150322233A1

    公开(公告)日：2015-11-12

    申请号：US14804482

    申请日：2015-07-21

    Applicant: IDEMITSU KOSAN CO. LTD.

    Inventor： Takeshi IWASAKI ,  Daichi OGAWA ,  Yutaka OBATA ,  Tomoaki TAKEBE

    IPC: C08K3/22 ,  H01L33/60

    Abstract: Provided is a (meth)acrylate composition containing: (A) at least one (meth)acrylate compound selected from the group consisting of a (meth)acrylate-modified silicone oil, a (meth)acrylate having a long-chain aliphatic hydrocarbon group, and a polyalkylene glycol (meth)acrylate having number-average molecular weight of not less than 400; (B) a (meth)acrylate compound to which an alicyclic hydrocarbon group having 6 or more carbon atoms is ester-linked; (C) (meth)acrylic acid or a (meth)acrylate compound having a polar group; (D) a radical polymerization initiator; and (E) a white pigment.

    Abstract translation: 本发明提供一种（甲基）丙烯酸酯组合物，其含有：（A）至少一种选自（甲基）丙烯酸酯改性的硅油，具有长链脂肪族烃基的（甲基）丙烯酸酯）的（甲基）丙烯酸酯化合物 ，和数均分子量不小于400的聚亚烷基二醇（甲基）丙烯酸酯; （B）具有6个或更多个碳原子的脂环族烃基被酯连接的（甲基）丙烯酸酯化合物; （C）（甲基）丙烯酸或具有极性基团的（甲基）丙烯酸酯化合物; （D）自由基聚合引发剂; 和（E）白色颜料。

    CRIMPED FIBERS AND NONWOVEN FABRIC
    8.
    发明申请
    CRIMPED FIBERS AND NONWOVEN FABRIC 审中-公开

    公开(公告)号：US20200071867A1

    公开(公告)日：2020-03-05

    申请号：US16613524

    申请日：2018-05-16

    Applicant: IDEMITSU KOSAN CO., LTD.

    Inventor： Mari YABE ,  Takumi SUGIUCHI ,  Yutaka MINAMI ,  Tomoaki TAKEBE

    IPC: D04H3/147 ,  D04H3/007 ,  D01F8/06 ,  D01D5/22

    Abstract: The present invention relates to a crimped fiber including one component thereof containing a thermoplastic resin (A) and another component thereof containing a thermoplastic resin (B) and a thermoplastic resin (C), wherein a half-crystallization time at 25° C. of the thermoplastic resin (A) is shorter than a half-crystallization time at 25° C. of the thermoplastic resin (B), and a half-crystallization time at 25° C. of the thermoplastic resin (C) is longer than the half-crystallization time at 25° C. of the thermoplastic resin (B).

    FIBROUS NONWOVEN FABRIC
    9.
    发明申请
    FIBROUS NONWOVEN FABRIC 审中-公开
    纤维非织造布

    公开(公告)号：US20150368836A1

    公开(公告)日：2015-12-24

    申请号：US14763994

    申请日：2014-01-30

    Applicant: IDEMITSU KOSAN CO., LTD.

    Inventor： Yohei KOORI ,  Tomoaki TAKEBE ,  Yutaka MINAMI

    IPC: D04H1/4291 ,  D01D5/08

    CPC classification number: D04H1/4291 ,  D01D5/08 ,  D04H3/007 ,  D04H3/016 ,  D10B2501/00 ,  D10B2509/026 ,  Y10T442/608 ,  Y10T442/681

    Abstract: Provided is a fibrous nonwoven fabric including a resin composition (C) containing a high-crystalline polyolefin (A) and a low-crystalline polyolefin (B), wherein a half-crystallization time (tc) of the resin composition (C) is 1.2 to 2.0 times a half-crystallization time (ta) of the high-crystalline polyolefin (A).

    Abstract translation: 本发明提供一种包含含有高结晶性聚烯烃（A）和低结晶性聚烯烃（B）的树脂组合物（C）的纤维无纺布，其中，树脂组合物（C）的半结晶时间（tc）为1.2 至高结晶性聚烯烃（A）的半结晶时间（ta）的2.0倍。

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