Tetracarboxylic dianhydride and preparation method thereof
The invention provides novel tetracarboxylic dianhydride and a preparation method thereof. According to an exemplary embodiment of the present invention, a novel tetracarboxylic dianhydride and a method for preparing the same can be provided. The novel tetracarboxylic dianhydride is suitable for pro...
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Format: | Patent |
Sprache: | chi ; eng |
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