The polymers and pigments have been discussed previously. Coalescing solvents are water-miscible glycol ethers which aid in the water-dispersibility of the resin and enhance coating uniformity.

Propylene glycol, glycerin, polyalcohol can be used as starting substances of polyether demulsifiers.

The results showed that the terminated prepolymer was prepared by introducing ethylene glycol alkyl ether as a capping agent into the reaction system of castor oil and tolylene diisocyanate (TDI).