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    SPUNBONDED NON-WOVEN FABRIC AND METHOD FOR MANUFACTURING SAME
    2.
    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
    4.
    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
    7.
    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。

    ADHESIVE COMPOSITION AND ADHESIVE TAPE USING SAME
    8.
    发明申请
    ADHESIVE COMPOSITION AND ADHESIVE TAPE USING SAME 审中-公开
    胶粘组合物和粘合胶带使用相同

    公开(公告)号：US20150299527A1

    公开(公告)日：2015-10-22

    申请号：US14439765

    申请日：2013-10-31

    Applicant: IDEMITSU KOSAN CO., LTD.

    Inventor： Kazuhiro HASHIMA ,  Masami KANAMARU ,  Yutaka MINAMI

    IPC: C09J123/20 ,  C09J123/12

    CPC classification number: C09J123/20 ,  C08L23/12 ,  C08L23/20 ,  C08L2205/025 ,  C08L2207/14 ,  C08L2314/06 ,  C09J123/02 ,  C09J123/12 ,  C09J2423/10

    Abstract: Provided are an adhesive composition which has high adhesive strength and holding strength and leaves no residual glue by using a polyolefinic polymer, and an adhesive tape using the same. The adhesive composition contains (1) 5 to 95% by mass of a polyolefin having a melting point which is lower than 20° C. or is not observed by a differential scanning calorimeter (DSC) and having a ΔH of less than 5 J/g, and (2) 5 to 95% by mass of a polyolefin having a melting point of 20° C. or higher and 160° C. or lower and having a ΔH of 5 J/g or more and 100 J/g or less, wherein the storage elastic modulus of the composition at 25° C. obtained from the solid viscoelasticity measurement of the composition is 1 MPa or more and 200 MPa or less, and the storage elastic modulus thereof at 50° C. is 1 MPa or more and 100 MPa or less.

    Abstract translation: 提供一种具有高粘合强度和保持强度并且通过使用聚烯烃聚合物不留下残留胶的粘合剂组合物，以及使用其的胶带。 粘合剂组合物含有（1）5〜95质量％的熔点低于20℃的聚烯烃或差示扫描量热计（DSC）未观察到并且具有小于5的＆Dgr; H J / g和（2）5〜95质量％的熔点为20℃以上且160℃以下且具有5J / g以上且100以上的Dgr的H的聚烯烃 J / g以下，其中，由组合物的固体粘弹性测定得到的组合物在25℃下的储能弹性模量为1MPa以上且200MPa以下，其储存弹性模量为50℃ 为1MPa以上且100MPa以下。

    FIBERS AND NON-WOVEN FABRIC
    9.
    发明申请
    FIBERS AND NON-WOVEN FABRIC 有权

    公开(公告)号：US20210087715A1

    公开(公告)日：2021-03-25

    申请号：US16971932

    申请日：2019-02-25

    Applicant: IDEMITSU KOSAN CO.,LTD.

    Inventor： Takumi SUGIUCHI ,  Yutaka MINAMI ,  Mari YABE

    IPC: D01F6/46 ,  D04H1/4291 ,  C08F110/06 ,  C08L23/12

    Abstract: The present invention relates to a fiber including a thermoplastic resin composition containing a polypropylene-based resin (A) in which a melting endotherm (ΔH-D) obtained from a melting endothermic curve obtained by holding a sample under a nitrogen atmosphere at -10° C. for 5 minutes and then increasing the temperature at a rate of 10° C./min by using a differential scanning calorimeter (DSC) is 0 J/g or more and 80 J/g or less, and a melt flow rate (MFR) measured under a condition at a temperature of 230° C. and a load of 2.16 kg in conformity with JIS K7210 is 1,000 g/10 min or more; and a polypropylene-based resin (B) (exclusive of the polypropylene-based resin (A)) having a melting point (Tm-D) of higher than 120° C., the fiber having a fiber diameter of 2.0 denier or less.

    BASE POLYMER FOR HOT MELT ADHESIVE
    10.
    发明申请
    BASE POLYMER FOR HOT MELT ADHESIVE 审中-公开

    公开(公告)号：US20180265752A1

    公开(公告)日：2018-09-20

    申请号：US15537142

    申请日：2015-12-22

    Applicant: IDEMITSU KOSAN CO., LTD.

    Inventor： Kanako SAMEJIMA ,  Harumi NAKASHIMA ,  Yutaka MINAMI ,  Tomoaki TAKEBE

    IPC: C09J123/14 ,  C09J11/06 ,  C09J123/08 ,  C09J5/00

    Abstract: A base polymer for hot-melt adhesive, containing a propylenic polymer (A) having a tensile modulus of elasticity of 60 MPa or more, and an olefinic polymer (B) having a tensile modulus of elasticity of less than 60 MPa, wherein, relative to 100 parts by mass of the total amount of the propylenic polymer (A) and the olefinic polymer (B), the content of the propylenic polymer (A) is 1 part by mass or more and less than 50 parts by mass, and the content of the olefinic polymer (B) is more than 50 parts by mass and 99 parts by mass or less; and a hot-melt adhesive containing the base polymer, and further containing at least one of (C) a tackifier resin and (D) an oil.

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