Oil-modified urethanes is prepared with vegetable oil and TDI as main materials, which is then neutralized to form the waterborne oil-modified urethanes.
以植物油、TDI为主要原料合成氨酯油，中和后加入水分散得水性氨酯油溶液。
2
Medical thermoplastic polyether urethanes(TPU) based on MDI/PTMG/BDO system were prepared by one -shot, prepolymer and semi-prepolymer processes with equivalent stoichiometries respectively.