The polymer which for heat insulation which has the mono vinyl aromatic polymer of wide molecular weight distribution it pushes out and foaming

摘要

(57) Abstract Topic Following to EN-13164, it offers the extrusive thermoplastic polymer independent air bubble foaming body which has the heat insulation where the coefficient of thermal conductivity which it measured is superior below approximately 35mW/m.K. Solutions With the foaming body which uses the mono vinyl aromatic polymer which has wide molecular weight distribution, primary blowing agent (with fluorine content carbon component and desire of 1 or more carbon dioxide the foaming body which contains the blowing agent from production of the air bubble of the foaming body which was made newly) and secondary blowing agent (C_1-4 alcohol, C_1-5 line or cyclic hydrocarbon, alkyl halide, water or those blends) making use of the blowing agent blend which includes.