发明名称 |
BINDER PITCH WITH MODIFIED FILTRABILITY AND ITS PREPARATION |
摘要 |
<p>This binder pitch, which has a KS softening point of between 60 DEG C and 80 DEG C and a content of quinoline-insoluble substances lower than or equal to 7% by weight, is characterised in that its filterability index is higher than or equal to 4.5. To prepare it, a tar or a pitch which has a KS softening point of not more than 60 DEG C and a content of quinoline-insoluble substances lower than or equal to 7% by weight is subjected to a heat treatment capable of removing a substantial proportion of its constituents with a molecular mass lower than 1200.</p> |
申请公布号 |
GR3001462(T3) |
申请公布日期 |
1992.10.08 |
申请号 |
GR19910400175T |
申请日期 |
1991.02.11 |
申请人 |
ELF ATOCHEM S.A. |
发明人 |
COUDERC, PIERRE;BUCHE, SERGE;SAINT-ROMAIN, JEAN LOUIS |
分类号 |
C10C3/10;C10C1/19;C10C3/02;(IPC1-7):C10C3/00 |
主分类号 |
C10C3/10 |
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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