| In recent years,with the futher consciousness of environment, waterborne coating was easily accepted and used. waterborne coating's production and application has been made a great progress. Water assistants coordinated use of waterborne coating became an important object be studied and developed. Water assistants with good erformance plays an important role in process technology of waterborne coating,its also greatly affect waterborne coating's storage stability and application performance.In this paper, we studied with water thickener, sum up the development history, and latest progress both at home and abroad of thickeners, pointed out the strategies of the synthesing the novel poly (ether urethane) thickeners.This type thickeners has been industry,open method is very little,and the synthesis complex, can't apply to the desire of a large scale commercial operation.1) Triblock PU thickeners was prepared successfully.with different types of Hydrophilic and Hydrophobic Groups show different thickening performance.2) Block PU thickeners was prepared, thickening performance was markedly improved. We even can synthesis many kinds of thickeners without modified PEG.3) Well crosslinking degree can improve block PU thickeners performance,.but they were not easily be dispersed.4) Thickeners with a novel diamine,shows good thickening performance.5) A series of thickeners have good stability,and degrade very difficultly.6) synthesized a few kinds of HEURS represented,moreover,This method simple reliable,costless and no special laboratory condition needed,These work can help for large-scale production.7) Combined the practical application,some performance tests were done , try to solve many questions and insufficiency in application, widen its application area, thereby supply more techniques of next step work.
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