Blends of rubber-free styrene polymer with an oxirane homopolymer and optionally high-impact polystyrene have good weathering resistance and a good ductility/stiffness ratio

摘要

A polymer blend comprises by weight (A) a rubber-free styrene polymer (50-99.9%); (B) an oxirane homopolymer (0.1-50%); (C) a filler (0-30%); and (D) a lubricant, colorant, pigment, flame retardant, antioxidant, UV stabilizer or antistat (0-10%). An independent claim is also included for a blend of the above blend (5-95 wt.%) with a high-impact polystyrene (5-95 wt.%).