A polyamide imide was synthesized from trimellitic anhydride and di isocyanate.

本文用偏苯三酸酐和二异氰酸酯合成了一种新型聚酰胺酰亚胺.

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Trimellitic anhydride and o - phthalic anhydride are the mainly by - products in the producing process of pyromellitic anhydride.

均苯四甲酸二酐产品中主要含有偏苯三酸酐、苯酐等副产.

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The recent advances in technology about synthesis of trimellitic anhydride ( TMA ) from m - xylene were reviewed.

评述了间二甲苯法制偏苯三酸酐 ( TMA ) 技术的最新进展.

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