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    • 1. 发明专利
    • Water impervious material injection type water impervious work, system, and polyvinyl alcohol-system injection type water impervious material
    • 水不正确的材料注射类型水不正确的工作,系统和聚乙烯醇系统注入类型的水不正确的材料
    • JP2005087990A
    • 2005-04-07
    • JP2004231509
    • 2004-08-06
    • Kajima CorpKuraray Co LtdRailway Technical Res Inst株式会社クラレ財団法人鉄道総合技術研究所鹿島建設株式会社
    • OZAWA KAZUYOSHIKAWABATA JUNICHIKOBAYASHI TOSHIAKISHIROTANI YASUHIROISE TOMOKAZUKUSUDO KAZUMASATATEYAMA MASARUYAGUCHI NAOYUKI
    • E02B7/02B09B1/00
    • PROBLEM TO BE SOLVED: To provide a water impervious material injection type water impervious work causing little uneven solidification, and a polyvinyl alcohol-system injection type water impervious material.
      SOLUTION: A plurality of layers of water impervious sheets 6a, 6b are laid with circumferential edges closely brought into contact with the ground face 1 where a load is set, a space d is secured between the adjacent water impervious sheets 6a, 6b against the load by using a porous spacer 7, and a polyvinyl alcohol-based impervious material aqueous solution 10 with adjustable gelation time t by pH is injected into the gap d. Preferably, the aqueous solution 10 has a pH value making the gelation time t equal to or longer than a solution charging time t
      0 into the gap d, and the gap d is evacuated when the aqueous solution 10 is injected. One of examples of the water impervious material is an aqueous solution 10 in which a polyvinyl alcohol-based polymer of the degree of polymerization of 500 or more, a water soluble crosslinking agent having in its molecules two or more methylol groups, and a pH adjusting agent are dissolved. The degree of polymerization, polymer concentration and the mole ratio of the methylol groups to the vinyl alcohol unit in the polymer impart given water impervious properties to the water impervious gel.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供不透水凝固的不透水材料注射型防水工作,以及聚乙烯醇系注射型防水材料。 解决方案:多层不透水片材6a,6b被铺设成周边边缘紧密地与放置负载的接地面1接触,空间d固定在相邻的不透水片材6a,6b之间 通过使用多孔隔离物7与负载相反,并且通过pH将具有可调凝胶时间t的聚乙烯醇类不透水材料水溶液10注入到间隙d中。 优选地,水溶液10具有使间隙d中的凝胶化时间t等于或长于溶液充填时间t 0 的pH值,并且当水溶液10为 注射。 防水材料的一个例子是水溶液10,其中聚合度为500以上的聚乙烯醇类聚合物,其分子中具有两个或更多个羟甲基的水溶性交联剂和pH调节 药剂溶解。 聚合物的聚合度,聚合物浓度以及聚合物中羟甲基与乙烯醇单元的摩尔比赋予防水凝胶给予不透水性。 版权所有(C)2005,JPO&NCIPI
    • 3. 发明专利
    • 導電性不織布
    • 导电非织布
    • JP2014201862A
    • 2014-10-27
    • JP2013081302
    • 2013-04-09
    • 株式会社クラレKuraray Co Ltd
    • SHIROTANI YASUHIRONORIHASHI KIMIHIKOOHIRA KAZUO
    • D06M11/83B32B15/14D04H3/011D04H3/16D06C7/02H05K9/00
    • 【課題】薄膜、高強力で、かつ、広範囲に電磁波遮蔽性を有する導電性不織布を提供する。【解決手段】310℃での溶融粘度が20Pa・s以下である溶融液晶形成性全芳香族ポリエステルを主成分とし、以下(1)〜(6)をともに満足することを特徴とするメルトブロー不織布に金属被膜を形成する導電性不織布。(1)平均繊維径が0.1μm以上5μm以下であること(2)不織布中に存在するフィルム状物が2個未満/1mm2であること(3)タテ方向の裂断長が10km以上且つ、ヨコ方向の裂断長が6km以上であること(4)目付けが1.0g/m2以上15g/m2以下であること(5)厚みが5μm以上50μm以下であること(6)通気度が300cc/cm2/秒以下であること【選択図】なし
    • 要解决的问题:提供薄膜厚度高,强度高的导电性无纺布,并且具有宽范围的电磁波屏蔽性能。解决方案:一种导电性无纺布,其中金属膜形成在熔融状态下, 作为主要成分,含有在310℃下熔融粘度为20Pa·s以下的熔融液晶性全芳香族聚酯,满足下述(1)〜(6):(1) 其平均纤维直径为0.1μm以上且5μm以下; (2)无纺布中的膜状材料的数量少于2个/ mm; (3)其纵断面长度为10 km以上,横断面长度为6 km以上; (4)其单位面积重量为1.0g / mor,15g / mor以下; (5)其厚度为5μm以上且50μm以下; 和(6)其透气度为300cc / cm 3 / s以下。
    • 7. 发明专利
    • Work method for spraying short fibers for reinforcement
    • 用于喷涂短纤维加固的工作方法
    • JP2003064690A
    • 2003-03-05
    • JP2001252937
    • 2001-08-23
    • Kuraray Co Ltd株式会社クラレ
    • ISE TOMOKAZUSHIROTANI YASUHIRO
    • E02D17/20
    • PROBLEM TO BE SOLVED: To provide a method enabling the easy mixing of reinforcing fibers into a cement or earth matrix to strengthen it without causing their uneven distributions there, and the continuous supply of a constant volume of such reinforcing fibers for mixing, and also provide a reinforced earth spray work method using such fiber mixed matrix.
      SOLUTION: A constant-volume reinforcing fiber supply method and a short- fiber mixed reinforced earth spray work method characterized by using the slivers of short fibers temporarily twisted and wounded into a cheese form, and having less than 100 dtex of average filament denier, 50-200 mm of average fiber length and 10,000 - two million dtex of total denier.
      COPYRIGHT: (C)2003,JPO
    • 要解决的问题:提供一种能够将增强纤维容易地混合到水泥或土体基质中以强化其而不会在其中不均匀分布的方法,并且连续供应恒定体积的这种增强纤维用于混合,并且还提供 使用这种纤维混合基质的增强地球喷射工作方法。 解决方案:一种恒量增强纤维的供给方法和一种短纤维混合强化土壤喷雾工作方法,其特征在于使用短纤维短纤维暂时捻合并缠绕成干酪形式,并且具有小于100dtex的平均长丝旦数,50 平均纤维长度为-200mm,总旦尼尔为10,000-200万分特。
    • 9. 发明专利
    • Separator, and manufacturing method thereof
    • 分离器及其制造方法
    • JP2009076350A
    • 2009-04-09
    • JP2007244921
    • 2007-09-21
    • Kuraray Co Ltd株式会社クラレ
    • SHIROTANI YASUHIROMIYAGUCHI YUTAKANORIHASHI KIMIHIKO
    • H01M2/16
    • Y02E60/12
    • PROBLEM TO BE SOLVED: To provide a separator which can achieve both reduction of resistance inside the battery and safety of the battery under a high temperature.
      SOLUTION: The separator is provided with a non-woven fabric (A) formed of a molten liquid crystalline polyester fiber with a melting point of 200°C or more and an olefin based fine porous membrane (B) superposed integrally. The non-woven fabric (A) may have a dry thermal shrinkage rate of 1% or less at the time of heating for one hour at 230°C, and the olefin based fine porous membrane (B) may be constructed of a polyethylene based resin and a polypropylene based resin or the like.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种能够在高温下实现电池内部的电阻降低和电池的安全性的隔膜。 解决方案:隔膜设有由熔点为200℃以上的熔融液晶聚酯纤维形成的无纺织物(A)和一体地叠合的烯烃类细多孔膜(B)。 无纺布(A)可以在230℃下加热1小时时的干热收缩率为1%以下,烯烃类微细多孔膜(B)可以由聚乙烯基 树脂和聚丙烯基树脂等。 版权所有(C)2009,JPO&INPIT
    • 10. 发明专利
    • Nonwoven fabric and method for producing the same
    • 非织造织物及其制造方法
    • JP2009074196A
    • 2009-04-09
    • JP2007243572
    • 2007-09-20
    • Kuraray Co Ltd株式会社クラレ
    • SHIROTANI YASUHIROMIYAGUCHI YUTAKANORIHASHI KIMIHIKO
    • A47L13/16D04H3/011D04H3/14D04H3/16
    • PROBLEM TO BE SOLVED: To provide a bulky nonwoven fabric having excellent heat and chemical resistances and to provide a method for producing the bulky nonwoven fabric.
      SOLUTION: The nonwoven fabric is formed from filaments having a melting liquid crystal-forming wholly aromatic polyester having a melt viscosity of 20 Pa s or less at 310°C or above as a main component and having an average fiber diameter of 1-15 μm, and the principal plane has a plurality of peak parts 1. The apparent density of the nonwoven fabric is 0.01-0.3 g/cm. The ratio (Sm)/(Ym) of the average interval (Sm) of the apexes of the adjacent peak parts to the average height (Ym) of the plurality of peak parts may be about 0.02-100.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供具有优异的耐热和耐化学性的膨松的无纺织物,并提供一种制造膨松的无纺织物的方法。 解决方案:无纺布由具有熔融粘度为210Pa以下的熔融粘度为20Pa·s以下的熔融液晶性全芳香族聚酯的长丝为主要成分,平均纤维直径为1 -15μm,主面具有多个峰部1.无纺布的表观密度为0.01-0.3g / cm 3。 相邻峰部分的顶点与多个峰部分的平均高度(Ym)的平均间隔(Sm)的比(Sm)/(Ym)可以为约0.02-100。 版权所有(C)2009,JPO&INPIT