介绍了用苯甲酸改性的含羟基醇酸树脂和甲苯二异氰酸酯（TDI）预聚物的合成工艺，以及由二者制成醇酸型聚氨酯涂料的方法；
The synthetic process of a prepolymer based on benzoic acid modified hydroxyl alkyd resin and toluene diisocyanate (TDI) prepolymer and the coatings made from this prepolymer has been described.
第二种聚 酰亚胺聚合物是芳香族四酸二酐与芳香族二异氰酸酯，在有机溶剂中，在催化剂的作用下，一步法缩合反应制备得到；
The second polyimide polymer is prepared with aromatic tetracid dihydride and aromatic diisocyanate and through a one-step condensation reaction in organic solvent and under the action of catalyst.
第二种聚 酰亚胺聚合物是芳香族四酸二酐与芳香族二异氰酸酯，在有机溶剂中，在催化剂的作用下，一步法缩合反应制备得到；
The second polyimide polymer is prepared with aromatic tetracid dihydride and aromatic diisocyanate and through a one-step condensation reaction in organic solvent and under the action of catalyst.
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