Sandwich element with improved resistance against stress corrosion, particularly for refrigerated cabibnet housings.

摘要

The sandwich (composite) elements having improved resistance to stress cracking corrosion, comprise… A) at least one outer layer of polystyrene, preferably high-impact polystyrene having certain mechanical properties, and… B) a layer of polyurethane foam, preferably rigid polyurethane foam, produced using difluorochloromethane as blowing agent and/or a blowing agent mixture essentially comprising water, difluorochloromethane and optionally trichlorofluoromethane.