A high solid elastic polyurethane prepolymer has been prepared based on MDI, PAPI, HDI, IPDI and polyester polyols and polyether polyols.
采用MDI、PAPI、HDI、IPDI等不同的异氰酸酯和聚酯多元醇、聚醚多元醇等反应，制备高固体分的聚氨酯弹性体预聚物。
Several succinic acid polyester polyols were synthesized and used to prepare polyurethane elastomers having excellent solvent resistance.
合成了一种新系列丁二酸多元醇聚酯，并用它合成出耐酮类溶剂的聚氨酯弹性体。
It was pointed out that controlling the trace water and acid value in the polyester polyols was the key procedure to prepare the polyurethane materials suitable for making cast mould.
指出控制聚酯多元醇的含水量和酸值是制备聚氨酯铸模材料的关键。
It was pointed out that controlling the trace water and acid value in the polyester polyols was the key procedure to prepare the polyurethane materials suitable for making cast mould.
指出控制聚酯多元醇的含水量和酸值是制备聚氨酯铸模材料的关键。
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