Ultra-thin pure flexible graphite calendered sheet and method of
manufacture
    1.
    发明授权
    Ultra-thin pure flexible graphite calendered sheet and method of manufacture 失效
    超薄纯柔性石墨压延片及其制造方法

    公开(公告)号:US5149518A

    公开(公告)日:1992-09-22

    申请号:US574807

    申请日:1990-08-30

    IPC分类号: C04B35/536

    CPC分类号: C04B35/536

    摘要: A process for forming pinhole free ultra-thin flexible sheet material from natural graphite comprising treating low ash natural graphite particles with an oxidizing agent to intercalate the graphite, introducing the particles after they are dried to less than 2% by weight water into a furnace preheated to at least 2000.degree. F. to cause rapid expansion to a specific volume of at least 800 cc/gm and compressing the expanded graphite to below 8 mils in thickness with a density of less than 1.3 g/cc.

    摘要翻译: 一种由天然石墨形成无针孔超薄柔性片材的方法,包括用氧化剂处理低灰分天然石墨颗粒以插入石墨,将其干燥后的颗粒引入低于2重量%的水中预热的炉 至至少2000°F,以迅速膨胀至至少800cc / gm的比容积,并将密度低于1.3g / cc的膨胀石墨压缩至8密耳厚度以下。

    Stable blister free flexible graphite and method
    6.
    发明授权
    Stable blister free flexible graphite and method 失效
    稳定的无泡柔性石墨和方法

    公开(公告)号:US5582811A

    公开(公告)日:1996-12-10

    申请号:US532365

    申请日:1995-09-22

    IPC分类号: C04B35/536 C01B31/04

    CPC分类号: C04B35/536

    摘要: A stable blister free flexible graphite is formed in accordance with the present invention by performing two chemical reactions including a first step of high temperature heat treatment which converts the active carbon surface from hydrophilic to hydrophobic and generates active surface sites and a second step of exposing the heat treated graphite to a stabilizing reagent for stabilizing the active sites generated by the first step of high temperature heat treatment.

    摘要翻译: 根据本发明,通过进行两个化学反应形成稳定的不起泡的柔性石墨,该化学反应包括将活性炭表面从亲水转变成疏水性并产生活性表面位点的高温热处理的第一步骤,以及第二步骤, 将经热处理的石墨加热至稳定剂,以稳定由高温热处理的第一步产生的活性位点。

    High coking value pitch binders
    8.
    发明授权
    High coking value pitch binders 失效
    高焦化沥青粘合剂

    公开(公告)号:US4762566A

    公开(公告)日:1988-08-09

    申请号:US804894

    申请日:1985-12-05

    申请人: Ronald A. Greinke

    发明人: Ronald A. Greinke

    摘要: A binder which comprises pitch and the condensation product of (A) a ketone or dione selected from the group consisting of C.sub.3 to C.sub.13 aliphatic linear, branched or cyclic ketones and diones having at least one active hydrogen on each carbon atom adjacent to a ##STR1## group, compounds of the formula: ##STR2## wherein a and b are integers having a values of 0 to 6, and the C.sub.1 to C.sub.4 alkyl substituted derivatives thereof; and (B) at least one compound selected from the group consisting of C.sub.5 to C.sub.11 aldehydes, said aldehydes having an aromatic ring containing 4 to 6 carbon atoms and 0 to 1 oxygen atoms, wherein said condensation product has a Heat of Reaction Value of less than about 155 cal/g. Said binders being useful in the production of graphite electrodes having superior physical and electrical properties.

    摘要翻译: 一种粘合剂,其包含沥青和(A)选自C 3至C 13脂族直链,支链或环状酮的酮或二酮与在与IMA图像相邻的每个碳原子上具有至少一个活性氢的二酮的缩合产物 基团,其分子式为:其中a和b为0-6的整数,及其C1至C4烷基取代的衍生物; 和(B)至少一种选自C 5至C 11醛的化合物,所述醛具有含有4-6个碳原子和0-1个氧原子的芳环,其中所述缩合产物的反应热值小于 比约155卡/克。 所述粘合剂可用于生产具有优异物理和电学性能的石墨电极。