二苯甲烷二异氰酸酯

综述4,4′-二苯甲烷二异氰酸酯（MDI）应用及生产现状。

The applications and production of 4,4 ′ - diphenylmethane diisocyanate are described .

采用4,4′-二苯甲烷二异氰酸酯（MDl）和间苯二胺为单体，经两步法溶液聚合制备了芳香族聚脲。

Aromatic polyureas were synthesized from 4,4 ′ - diphenylmethane diisocyanate and m-phenylene diamine by two step solution polymerization .

二苯甲烷二异氰酸酯作业工人血清中抗原特异性IgG抗体测定

Specific serum IgG antibodies against diphenylmethane diisocyanate in occupationally exposed workers

二苯甲烷二异氰酸酯（MDI）是重要的聚氨酯原料，市场需求量很大。

Diphenylmethane diisocyanates ( MDI ) is an important material used for manufacturing polyurethanes .

介绍了以二苯甲烷二异氰酸酯（MDI）、多元醇、甲苯和磷酸三丁酯为原料合成橡胶地毯用静电植绒胶的中试工艺路线。

The technology of pilot scale run of electrostatic flocking onto rubber rug with MDI , polyols , toluene and tributyl phosphate as the raw materials was reviewed .

二苯甲烷二异氰酸酯的绿色催化合成

Catalytic Composition of Diphenylmethane Diisocyanate

并以此单体为反应物，通过与不同比例的4,4′-二苯甲烷二异氰酸酯反应，制得不同分子量的具有螺环结构的预聚体。

It reacted with diphenyl methane-4 , 4 ' - diisocyanate ( MDI ) in the different ratios to form prepolymers containing spirane structure .

用二苯甲烷-4,4′-二异氰酸酯（MDI）和1,4-丁二醇反应后，可分离出单分散的B（MB）1，和B（MB）2；

By the reaction of diphenylmethane - 4,4 ' - diisocyanate ( MDI ) and 1,4-butanediol ( BDO ), narrow distributed B ( MB ) 1 and B ( MB ) 2 were separated and purified .

以端羟基聚丁二烯（HTPB）和二苯甲烷-4,4′-二异氰酸酯（MDI）为原料，1,4-丁二醇为扩链剂。

Polybutadiene - polyurethane thermoplastic elastomers [ PU ( HTPB ) ] were synthesized using hydroxyl terminated polybutadiene ( HTPB ), diphenylmethane - 4,4 ' - diisocyanate and 1,4-butanediol .