| abstract |
PROBLEM TO BE SOLVED: To provide an extruded styrene resin foam excellent in flame retardancy and thermal stability. SOLUTION: A styrene resin foam obtained by extrusion foaming using a styrene resin and a foaming agent, wherein (A) tetrabromobisphenol-A is used as a flame retardant with respect to 100 parts by weight of the styrene resin. -Brominated flame retardant composed of bis (2,3-dibromo-2-methylpropyl ether) and tetrabromobisphenol-A-bis (2,3-dibromopropyl ether), or (B) tetrabromobisphenol-A 1 to 6 parts by weight of mixed brominated flame retardant composed of bis (2,3-dibromo-2-methylpropyl ether) and tris (2,3-dibromopropyl) isocyanurate, and mixed brominated flame retardant Content of tetrabromobisphenol-A-bis (2,3-dibromo-2-methylpropyl ether) in the mixed odor If the entire system flame retardant is 100 wt%, characterized in that it is a 25% to 75 wt%, a styrene resin extruded foam. [Selection] Figure 1 |