发明名称 |
Process of producing optically anisotropic carbonaceous pitch. |
摘要 |
<p>A process for producing a homogeneous, optically anisotropic carbonaceous pitch useful for the production of carbon materials, comprises the steps of thermally cracking and polycondensing a starting oil obtained from petroleum or coal, said starting oil comprising a substantially chloroform-insoluble matter-free oily or tarry substance including a mixture of compounds consisting mainly of carbon and hydrogen having a boiling point of main components in the approximate range 250 to 540 DEG C and containing n-heptane-soluble aromatic oil and resin as the main components, each of which has an aromatic carbon fraction of at least 0.6, preferably at least 0.7, a number-average molecular weight of up to 1000 and a maximum molecular weight of up to 2000. </p> |
申请公布号 |
EP0057108(A2) |
申请公布日期 |
1982.08.04 |
申请号 |
EP19820300420 |
申请日期 |
1982.01.27 |
申请人 |
TOA NENRYO KOGYO K.K. |
发明人 |
IZUMI, TAKAYUKI;NAITO, TSUTOMU;NAKAMURA, TOMOO;TANAKA, HISAO |
分类号 |
C01B31/00;C08L95/00;C10C3/00;C10C3/02;C10C3/10;D01F9/15;D01F9/155;(IPC1-7):10C3/00;10G9/00 |
主分类号 |
C01B31/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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