POLYOLS WITH POLYESTER-AMIDE STRUCTURE CONTAINING MESOGENIC STRUCTURAL UNITS FOR SEMI-FLEXIBLE POLYURETHANE FOAMS AND PROCESS FOR PREPARING THE SAME
The invention relates to a process for preparing polyols with polyester-amide structure containing mesogenic structural units for semi-flexible polyurethane foams. According to the invention, the process comprises the successive stages of: 1. PET glycolysis in the presence of a mixture of diethylene...
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Sprache: | eng ; rum |
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