The cleaning agent USES water as a solvent instead of toxicsolvent such as benzenes, phenol aromatic hydrocarbons and halogenated hydrocarbon.
本发明不含苯类、酚类芳烃，卤代烃等有毒溶剂，以水为溶剂。
2
CONCLUSION the yield is raised, and the reaction time is shortened and the toxicsolvent is removed. The procedure developed is suitable for industrial production.
结论新工艺提高了收率、缩短了反应时间、消除了毒性溶剂，适合工业化生产。
3
The traditional painting is an organic solvent as diluent, need to consume large amounts of oil resources, more contain toxic chemicals benzene, toluene, xylene, formaldehyde, free TDI.