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公开(公告)号：US20190193032A1
公开(公告)日：2019-06-27
申请号：US16327873
申请日：2017-08-25
Applicant: Toray Industries, Inc.
Inventor： Daiki Shimada , Yuki Ikejiri , Yohei Nakano
CPC classification number: B01D69/10 , B01D63/00 , D04H3/011 , D04H3/016 , D04H3/03 , D04H3/147 , D04H3/16 , D10B2331/04 , D10B2505/04
Abstract: A spunbonded nonwoven fabric has a smooth surface, is highly unlikely to cause a widthwise curl due to a difference between the states of front and back surfaces, has a superior membrane formability of not allowing, at the time of casting of a resin solution, a bleed-through of the resin solution due to excessive permeation, a peel-off of a membrane substance, or any other defect such as nonuniform membrane or pin hole due to fluffing of the support, and further exhibits membrane bondability that is strong enough to prevent the membrane substance from peeling off after membrane formation.
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公开(公告)号：US11124907B2
公开(公告)日：2021-09-21
申请号：US16480964
申请日：2018-01-25
Applicant: Toray Industries, Inc.
Inventor： Yohei Nakano , Yuka Nishiguchi , Takuji Kobayashi
Abstract: The present invention provides a spun-bonded nonwoven fabric which is configured from polyolefin fibers that have excellent spinnability even if the single fiber diameter thereof is small, and which exhibits high flexibility and high uniformity. The present invention relates to a spun-bonded nonwoven fabric which is configured from fibers that are formed from a polyolefin resin and have a single fiber diameter of 6.5-14.5 μm, and which has a melt flow rate of 155-850 g/10 minutes and a CV value of the thickness of 13% or less.
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公开(公告)号：US11975281B2
公开(公告)日：2024-05-07
申请号：US17261352
申请日：2019-07-22
Applicant: TORAY Industries, Inc.
Inventor： Jun Yoshida , Koji Yamano , Yohei Nakano , Makoto Nishimura
CPC classification number: B01D39/163 , B01D39/04 , D01F6/46 , D04H3/16 , B01D2239/0627 , B01D2239/1233 , D04H1/43838 , D04H3/007
Abstract: The present invention is intended to provide a spunbond nonwoven fabric having low pressure loss, high collecting performance, and excellent processability and an air filter fabricated using the spunbond nonwoven fabric, the spunbond nonwoven fabric including fibers formed of a polyolefin-based resin, in which an average single fiber diameter of the fibers is 6.5 μm or more and 22.0 μm or less, a hindered amine-based compound represented by Formula (1) is contained at 0.1% by mass or more and 5% by mass or less, a melt flow rate (MFR) of the nonwoven fabric is 32 g/10 minutes or more and 850 g/10 minutes or less, and the nonwoven fabric is processed into an electret.
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4.发明申请NON-WOVEN FABRIC, SEPARATION MEMBRANE SUPPORT, SEPARATION MEMBRANE, FLUID SEPARATION ELEMENT, AND METHOD OF MANUFACTURING NON-WOVEN FABRIC 审中-公开非织造织物，分离膜支撑，分离膜，流体分离元件和制造非织造织物的方法公开(公告)号：US20160228824A1
公开(公告)日：2016-08-11
申请号：US15024592
申请日：2014-09-24
Applicant: TORAY INDUSTRIES, INC.
Inventor： Ryoichi Hane , Yohei Nakano , Yoshikazu Yakake
CPC classification number: B01D69/105 , B01D61/025 , B01D69/10 , D04H1/541 , D04H1/55 , D04H3/14 , D04H3/147 , D10B2331/04
Abstract: A nonwoven fabric has excellent mechanical strength in addition to workability stabled with a high yield even with respect to heat applied when forming a membrane and manufacturing a fluid separation element, when the nonwoven fabric is used as a support for a separation membrane such as a reverse osmosis membrane. The nonwoven fabric has two surfaces having a difference in smoothness therebetween of 10 seconds to 50 seconds, and a boiling water curling height after treating in boiling water for 5 minutes of 0 mm to 8.0 mm.
Abstract translation: 无纺布除了即使在形成膜时施加的热量和制造流体分离元件的高产率下也具有优异的机械强度，当非织造织物用作分离膜如反向的载体时 渗透膜。 非织造布具有10秒至50秒之间的平滑度差异的两个表面和在沸水中处理0分钟至8.0毫米5分钟的沸水卷曲高度。
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Patent Agency Ranking
公开(公告)号：US20200255994A1
公开(公告)日：2020-08-13
申请号：US16760267
申请日：2018-10-30
Applicant: Toray Industries, Inc.
Inventor： Masanori Endo , Yohei Nakano , Ryoichi Hane
Abstract: A spunbonded nonwoven fabric of the present invention is characterized by being composed of a polyolefin fiber, wherein the average pore diameter of the nonwoven fabric surface is 0.1-25 μm, the maximum pore diameter is 50 μm or less, and the water pressure resistance per unit basis weight is 7 mmH2O/(g/m2) or more.
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公开(公告)号：US10406469B2
公开(公告)日：2019-09-10
申请号：US15558010
申请日：2016-03-02
Applicant: TORAY INDUSTRIES, INC.
Inventor： Yohei Nakano , Yuji Iyama , Takuji Kobayashi
Abstract: Problem: The present invention allows a fiber sheet to be densely charged with electric charge and provides an electret fiber sheet that has excellent dust-collecting characteristics.Solution: The electret fiber sheet according to the present invention is an electret fiber sheet in which the relationship between a* and b* measured by a spectrophotometer when a red positive charge toner and a blue negative charge toner are attached to the sheet satisfies the expression: [12≤{−(b*)−(a*)}Ave≤50].
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公开(公告)号：US20150240390A1
公开(公告)日：2015-08-27
申请号：US14429957
申请日：2013-09-18
Applicant: TORAY INDUSTRIES, INC.
Inventor： Yoshikazu Yakake , Ryoichi Hane , Yohei Nakano
CPC classification number: D01F8/16 , D04H1/4291 , D04H1/4382 , D04H3/009 , D04H3/14 , D04H3/147 , D04H3/16 , Y10T428/2929 , Y10T442/641
Abstract: Provided are a composite fiber which consists primarily of resins comprising polyphenylene sulfide as their main constituents and which has both thermal dimensional stability and excellent thermal bondability, and a nonwoven fabric. The composite fiber consists primarily of component A and component B, the component A being a resin that includes polyphenylene sulfide as its main constituent, the component B being a resin that includes polyphenylene sulfide as its main constituent, having a higher melt flow rate than the component A, and forming at least part of the surface of the fiber.
Abstract translation: 提供一种复合纤维，其主要由包含聚苯硫醚作为其主要成分的树脂组成，并且具有热尺寸稳定性和优异的热粘合性，以及无纺布。 复合纤维主要由组分A和组分B组成，组分A是包括聚苯硫醚作为其主要成分的树脂，组分B是包括聚苯硫醚作为其主要成分的树脂，其熔体流动速率高于 组分A，并且形成纤维表面的至少一部分。
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公开(公告)号：US20200002862A1
公开(公告)日：2020-01-02
申请号：US16480964
申请日：2018-01-25
Applicant: Toray Industries, Inc.
Inventor： Yohei Nakano , Yuka Nishiguchi , Takuji Kobayashi
Abstract: The present invention provides a spun-bonded nonwoven fabric which is configured from polyolefin fibers that have excellent spinnability even if the single fiber diameter thereof is small, and which exhibits high flexibility and high uniformity. The present invention relates to a spun-bonded nonwoven fabric which is configured from fibers that are formed from a polyolefin resin and have a single fiber diameter of 6.5-14.5 μm, and which has a melt flow rate of 155-850 g/10 minutes and a CV value of the thickness of 13% or less.
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公开(公告)号：US20180369737A1
公开(公告)日：2018-12-27
申请号：US16062673
申请日：2016-11-25
Applicant: Toray Industries, Inc.
Inventor： Daiki Shimada , Yohei Nakano , Shinobu Mizogami , Takuji Kobayashi
Abstract: A spunbond non-woven fabric for a filter has high rigidity and air permeability as well as excellent dust brush-off performance. The spunbond non-woven fabric for a filter includes a composite polyester fiber containing a low melting point polyester arranged in the vicinity of a high melting point polyester, the low melting point polyester having a melting point 10 to 140° C. lower than the melting point of the high melting point polyester, the composite polyester fiber having a single fiber fineness of not less than 1.5 dtex and less than 5.0 dtex, the spunbond non-woven fabric having a basis weight of 150 to 300 g/m2, an apparent density of 0.25 to 0.40 g/cm3, an air permeability per basis weight of 0.05 to 0.45 (cm3/cm2·sec)/(g/m2), and a bending resistance per basis weight, in at least one of the machine direction (MD) and the transverse direction (TD), of 0.09 to 0.32 (mN)/(g/m2).
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