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45 条记录 (耗时 0.027 秒)

    Load-variable rolling bearing and rolling element for the same
    21.
    发明授权
    Load-variable rolling bearing and rolling element for the same 有权

    公开(公告)号：US11339827B2

    公开(公告)日：2022-05-24

    申请号：US17163567

    申请日：2021-02-01

    申请人： Young Keun Lee ,  Hyun Yui Sin

    发明人： Young Keun Lee ,  Hyun Yui Sin

    IPC分类号： F16C19/36 ,  F16C19/16 ,  F16C19/50 ,  F16C33/32 ,  F16C33/36 ,  F16C19/52

    摘要： A load-variable rolling bearing includes: an outer ring having an outer ring raceway surface with spherical surface contact portions having concave arch sections and a variable contact portion having a shape of a cylinder in such a manner as to be adjacent to the spherical surface contact portions in an axial direction of the spherical surface contact portions; an inner ring having an inner ring raceway surface with spherical surface contact portions having concave arch sections and a variable contact portion having a shape of a cylinder in such a manner as to be adjacent to the spherical surface contact portions in an axial direction of the spherical surface contact portions; and a plurality of rolling elements each having a cylindrical variable contact portion and spherical surface portions formed with convex spherical surfaces on both sides of the variable contact portion.

    Microporous polyolefin multi layer film
    22.
    发明授权
    Microporous polyolefin multi layer film 有权
    微孔聚烯烃多层膜

    公开(公告)号：US08597775B2

    公开(公告)日：2013-12-03

    申请号：US12995471

    申请日：2009-05-29

    申请人： Jang-Weon Rhee ,  In Hwa Jung ,  Gwig Won Kang ,  Young Keun Lee

    发明人： Jang-Weon Rhee ,  In Hwa Jung ,  Gwig Won Kang ,  Young Keun Lee

    IPC分类号： B32B7/02

    CPC分类号： H01M2/1653 ,  B01D71/26 ,  B29C55/023 ,  B32B7/02 ,  B32B7/12 ,  B32B27/08 ,  B32B27/18 ,  B32B27/281 ,  B32B27/32 ,  B32B2250/03 ,  B32B2264/102 ,  B32B2307/306 ,  B32B2307/558 ,  B32B2307/714 ,  B32B2457/10 ,  B32B2605/00 ,  H01M2/1686 ,  H01M10/052 ,  Y10T428/24942

    摘要： A microporous polyolefin multilayer film which is used as a separator for a battery is a 3 layer microporous film which is prepared by a wet process to have both surface layers containing polyethylene of 95 wt % or more having a melting temperature of 125° C. or higher, and an inner layer containing polypropylene of 50 to 90 wt % having a melting temperature of 160° C. or higher and polyethylene of 10 to 50 wt % having a melting temperature of 125° C. or higher. A thickness of the film is 9-50/M, a puncture strength is 0.15N//M or more, a permeability is 1.5×10−5 Darcy or more, a multiplication of the puncture strength and the permeability is 0.4×10−5 Darcy·N/μm or more, a shrinkage in a transverse direction at 120° C. for 1 hour is 15% or less, and a melt fracture temperature of 160° C. or higher.

    摘要翻译： 用作电池隔板的微孔聚烯烃多层膜是通过湿法制备的三层微孔膜，其具有包含熔融温度为125℃的95重量％以上的聚乙烯的表面层，或者 更高，熔融温度为160℃以上的含有50〜90重量％的聚丙烯的内层和10〜50重量％的熔融温度为125℃以上的聚乙烯。 膜的厚度为9-50 / M，穿刺强度为0.15N // M以上，磁导率为1.5×10-5达西以上，穿刺强度与导磁率的乘积为0.4×10- 5达西·N / mum以上，120℃下1小时的横向收缩率为15％以下，熔融断裂温度为160℃以上。

    Method of producing microporous high density polyethylene film
    25.
    发明授权
    Method of producing microporous high density polyethylene film 有权
    生产微孔高密度聚乙烯薄膜的方法

    公开(公告)号：US07947752B2

    公开(公告)日：2011-05-24

    申请号：US12068803

    申请日：2008-02-12

    申请人： Young Keun Lee ,  Jang Weon Rhee ,  Won Young Cho ,  Jung Moon Sung ,  Byoung Cheon Jo ,  Chol Ho Lee ,  In Hwa Jung ,  Byung Rae Jung

    发明人： Young Keun Lee ,  Jang Weon Rhee ,  Won Young Cho ,  Jung Moon Sung ,  Byoung Cheon Jo ,  Chol Ho Lee ,  In Hwa Jung ,  Byung Rae Jung

    IPC分类号： C08J9/00 ,  C08J5/22

    CPC分类号： C08J5/18 ,  C08J2323/06 ,  C08L23/06 ,  C08L91/00 ,  H01M2/145 ,  H01M2/1653 ,  C08L91/06

    摘要： Disclosed is a microporous high density polyethylene film for a battery separator and a method of producing the same. The microporous high density polyethylene film includes high density polyethylene with a weight average molecular weight of 2×105-5×105, containing 5 wt % or less molecule with a molecular weight of 1×104 or less. The microporous high density polyethylene film has tensile strengths of 1,100 kg/cm2 or more in transverse and machine directions respectively, a puncture strength of 0.22 N/μm or more, a gas permeability (Darcy's permeability constant) of 1.3×10−5 Darcy or more, and shrinkages of 5% or less in machine and transverse directions, respectively. Particularly, the microporous high density polyethylene film has an excellent extrusion-compoundabiliy and stretchability and a high productivity, and can improve the performances and stability of a battery produced using the same.

    摘要翻译： 公开了一种用于电池隔膜的微孔高密度聚乙烯膜及其制造方法。 微孔高密度聚乙烯膜包括重均分子量为2×105-5×105的高密度聚乙烯，其含有5重量％以下的分子量为1×10 4以下的分子。 微孔高密度聚乙烯膜的横向和机械方向的抗拉强度分别为1100kg / cm 2以上，穿刺强度为0.22N /μm以上，透气度（达西渗透率常数）为1.3×10-5达西或 分别在机器和横向上分别为5％或更小的收缩率。 特别地，微孔高密度聚乙烯膜具有优异的挤出复合性和拉伸性和高生产率，并且可以提高使用其制造的电池的性能和稳定性。