Polyurethane_urea used for leather finishing was prepared from aliphatic diisocyanate by ketazine process.
选择脂肪族二异氰酸酯,通过酮法制备水乳型氨酯—脲皮革涂饰剂。
Polyurethane_urea used for leather finishing was prepared from aliphatic diisocyanate by ketazine process.
选择脂肪族二异氰酸酯,通过酮法制备水乳型氨酯—脲皮革涂饰剂。
Toluene diisocyanate (TDI) is one of the most useful kinds of isocyanateth that is produced by the method of phosgenation of amine.
甲苯二异氰酸酯(TDI)是异氰酸酯化合中应最广泛的品种之一,其工业生产主要采胺光化法。
A series of polyarylsulphone\|polyetherurethane block copolymers are synthesized through hydrogen polyaddition of diisocyanate terminated poly(oxypropylene)ether with polyethersulphone diphenol.
通过端二异氰酸酯醚与齐醚砜二酚模型的氢转移加成合反应合成了一系列芳醚砜-醚氨酯嵌段共。
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.
第二种酰亚胺合是芳香族四酸二酐与芳香族二异氰酸酯,在有机溶剂中,在催化剂的作下,一步法缩合反应制备得到;
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