| 发明名称 |
Dioxydiphthalic anhydride |
| 摘要 |
Dioxydiphthalic anhydride is prepared by the reaction of dihalophthalic anhydride with an alkali metal compound, such as potassium carbonate. The compound is particularly useful as a monomer in the preparation of polyimides.
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| 申请公布号 |
US5089631(A) |
申请公布日期 |
1992.02.18 |
| 申请号 |
US19900621412 |
申请日期 |
1990.12.03 |
| 申请人 |
OCCIDENTAL CHEMICAL CORPORATION |
发明人 |
STULTS, JEFFREY S.;SCHWARTZ, WILLIS T. |
| 分类号 |
C07C65/24;C07D491/14 |
主分类号 |
C07C65/24 |
| 代理机构 |
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| 主权项 |
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| 地址 |
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