Magnetic recording element
    1.
    发明授权
    Magnetic recording element 失效
    磁记录元件

    公开(公告)号:US4849291A

    公开(公告)日:1989-07-18

    申请号:US127812

    申请日:1987-12-02

    IPC分类号: G11B5/72

    CPC分类号: G11B5/722 Y10S428/90

    摘要: A magnetic recording element comprises a polymeric film substrate on which is formed a thin CoNi recording layer. Over the latter is a protective layer of an acrylic copolymer of a perfluoroalkyl methanol ester of acrylic or methacrylic acid, preferably formed by plasma polymerization. The layer is tough, has a low coefficient of friction and protects the magnetic layer against corrosion.

    摘要翻译: 磁记录元件包括聚合物膜基底,在其上形成薄CoNi记录层。 后者是丙烯酸或甲基丙烯酸的全氟烷基甲醇酯的丙烯酸共聚物的保护层,优选通过等离子体聚合形成。 该层是坚韧的,具有低摩擦系数并保护磁性层免受腐蚀。

    Crosslinked polymers with lowered resistivity and materials and methods
for their preparation
    6.
    发明授权
    Crosslinked polymers with lowered resistivity and materials and methods for their preparation 失效
    具有降低电阻率的交联聚合物及其制备方法

    公开(公告)号:US4698391A

    公开(公告)日:1987-10-06

    申请号:US892173

    申请日:1986-07-30

    CPC分类号: C08L67/00 C08K5/19 C09D167/00

    摘要: New crosslinked polymers are prepared from a combination of starting materials comprising a polymer, a crosslinking agent for the polymer, and a conductivity agent containing a quaternary ammonium moiety. The conductivity agent contains at least one functional group which, during an otherwise typical process of crosslinking the polymer through the crosslinking agent, reacts to bond the conductivity agent covalently and pendently to the crosslinking agent or the polymer. The resultant crosslinked polymer has lower electrical resistivity due to inclusion of the conductivity agent.

    摘要翻译: 新的交联聚合物由包含聚合物,聚合物交联剂和含季铵部分的导电剂的起始材料的组合制备。 导电剂含有至少一种官能团,其在通过交联剂交联聚合物的另一典型过程中,使共导性和共价键合到交联剂或聚合物上。 所得交联聚合物由于包含导电剂而具有较低的电阻率。