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12 条记录 (耗时 0.03 秒)

    METHOD FOR PREPARING POLYIMIDE AND POLYIMIDE PREPARED USING THE SAME
    4.
    发明申请
    METHOD FOR PREPARING POLYIMIDE AND POLYIMIDE PREPARED USING THE SAME 审中-公开
    制备聚酰亚胺和使用该聚酰亚胺的聚酰亚胺的方法

    公开(公告)号：US20100316877A1

    公开(公告)日：2010-12-16

    申请号：US12449454

    申请日：2008-01-18

    申请人： Heon-Sik Song ,  Kwang-Joo Lee ,  Joo-Eun Ko

    发明人： Heon-Sik Song ,  Kwang-Joo Lee ,  Joo-Eun Ko

    IPC分类号： B32B15/08 ,  C08G73/10

    CPC分类号： C08G73/1007 ,  C08G73/10 ,  C08G73/1039 ,  C08G73/1064 ,  Y10T428/31681

    摘要： The present invention relates to a method for preparing polyimide having excellent heat resistance and processibility and, more particularly, to a method of preparing polyimide which has desirable mechanical strength during curing at low temperatures and excellent processibility to be used as an insulating film of a metal laminate plate or a coverlay film for print substrates or hard disks, and polyimide prepared using the same.

    摘要翻译： 本发明涉及一种制备具有优异的耐热性和加工性的聚酰亚胺的方法，更具体地说，涉及一种制备聚酰亚胺的方法，该方法在低温下固化期间具有理想的机械强度，并具有优良的加工性，可用作金属的绝缘膜 层叠板或用于印刷基板或硬盘的覆盖膜，以及使用其制成的聚酰亚胺。

    Photosensitive resin composition and dry film comprising the same
    5.
    发明授权
    Photosensitive resin composition and dry film comprising the same 有权
    感光树脂组合物及其干膜

    公开(公告)号：US08354219B2

    公开(公告)日：2013-01-15

    申请号：US13191027

    申请日：2011-07-26

    申请人： Hee-Jung Kim ,  You-Jin Kyung ,  Kwang-Joo Lee

    发明人： Hee-Jung Kim ,  You-Jin Kyung ,  Kwang-Joo Lee

    IPC分类号： G03F7/038

    CPC分类号： G03F7/037

    摘要： The present invention relates to a photosensitive resin composition which is developable with an alkaline aqueous solution and does not need a high temperature for curing and the like, and has all the properties suitable for use in a cover film of a printed circuit board or a laminated body for a semiconductor, and a dry film comprising the same. The photosensitive resin composition comprises (A) a polyamic acid comprising a polymer of at least one diamine compound and at least one acid dianhydride; (B) a photopolymerizable compound having at least one polymerizable ethylenic unsaturated bond in its molecule; and (C) a photoinitiator.

    摘要翻译： 本发明涉及一种可用碱性水溶液显影而不需要高温固化等的感光性树脂组合物，并且具有适用于印刷电路板的覆盖膜或叠层的全部性能 半导体用主体以及包含该半导体的干膜。 感光性树脂组合物包含（A）包含至少一种二胺化合物的聚合物和至少一种酸二酐的聚酰胺酸; （B）分子中具有至少一个可聚合的烯键式不饱和键的光聚合化合物; 和（C）光引发剂。

    Apparatus for sealing a water pump bearing
    9.
    发明授权
    Apparatus for sealing a water pump bearing 有权
    水泵轴承密封装置

    公开(公告)号：US06869224B2

    公开(公告)日：2005-03-22

    申请号：US10641624

    申请日：2003-08-15

    申请人： Kwang-Joo Lee ,  Ki-Hong Jang

    发明人： Kwang-Joo Lee ,  Ki-Hong Jang

    IPC分类号： F04D29/12 ,  F04D29/04 ,  F04D29/046 ,  F04D29/049 ,  F04D29/08 ,  F16C33/78 ,  F16J15/32

    CPC分类号： F04D29/049 ,  F04D29/086 ,  F16C33/7853 ,  F16C33/7859 ,  F16C2360/44 ,  F16J15/3264

    摘要： The present invention discloses an apparatus for sealing a water pump bearing in which the bearing comprises a plurality of rolling elements arranged between an inner race and an outer race, a retainer for maintaining a prescribed space between each rolling element, and a seal coupled to a tip end of an opening in the space formed between the inner race and the outer race. The seal comprises a first seal equipped with a first reinforcing frame that is inserted into an inner axial section of bearing, and a second seal equipped with a second reinforcing frame that is inserted into an outer axial section of the bearing for coupling with the first seal. The first seal further comprises a first seal element that is inserted into an inner radial section of the first reinforcing frame and has two seal lips abutted to an inner radial section of the second reinforcing frame, and the second seal further comprises a second seal element that is inserted into an outer radial section of the second reinforcing frame and has two seal lips abutted to a central radial section of the first reinforcing frame, such that leakage of grease in the apparatus is prevented, and moisture, foreign particles and mixtures thereof are avoided from penetrating into the bearing, thereby increasing the durability of the water pump bearing.

    摘要翻译： 本发明公开了一种用于密封水泵轴承的装置，其中，所述轴承包括布置在内座圈和外座圈之间的多个滚动元件，用于在每个滚动元件之间保持规定空间的保持器和联接到 在内圈和外圈之间形成的空间中的开口的末端。 密封件包括配备有插入到轴承的内轴向部分中的第一加强框架的第一密封件和配备有第二加强框架的第二密封件，该第二加强框架插入到轴承的外轴向部分中，用于与第一密封件 。 第一密封件还包括第一密封元件，其被插入到第一加强框架的内部径向部分中并且具有与第二加强框架的内部径向部分邻接的两个密封唇部，并且第二密封件还包括第二密封元件，第二密封元件 被插入到第二加强框架的外径向部分中并且具有与第一加强框架的中心径向部分邻接的两个密封唇，从而防止了装置中的润滑脂泄漏，​​并且避免了水分，异物和其混合物 从而渗透到轴承中，从而提高了水泵轴承的耐久性。